Precision, Zero-Crossover, 20MHz, 0.9pA Ib, RRIO, CMOS Operational Amplifier
Product details
Parameters
Package | Pins | Size
Features
- Precision with Zero-Crossover Distortion:
- Low Offset Voltage: 150 µV (Maximum)
- High CMRR: 114 dB
- Rail-to-Rail I/O
- Low Input Bias Current: 0.9 pA (Maximum)
- Low Noise: 7 nV/√Hz at 10 kHz
- Wide Bandwidth: 20 MHz
- Slew Rate: 10 V/µs
- Quiescent Current: 1.45 mA/Ch
- Single-Supply Voltage Range: 1.8 V to 5.5 V
- OPA320S and OPA2320S:
- IQ in Shutdown Mode: 0.1 µA
- Unity-Gain Stable
- Small Packages:
- SOT-23, VSSOP, SON, and SOIC
Description
The OPA320 (single) and OPA2320 (dual) are a new generation of precision, low-voltage CMOS operational amplifiers optimized for very low noise and wide bandwidth while operating on a low quiescent current of only 1.45 mA.
The OPA320 series is ideal for low-power, single- supply applications. Low-noise (7 nV/√Hz) and high- speed operation also make them well-suited for driving sampling analog-to-digital converters (ADCs). Other applications include signal conditioning and sensor amplification.
The OPA320 features a linear input stage with zero- crossover distortion that delivers excellent common- mode rejection ratio (CMRR) of typically 114 dB over the full input range. The input common mode range extends 100 mV beyond the negative and positive supply rails. The output voltage typically swings within 10 mV of the rails.
In addition, the OPAx320 has a wide supply voltage range from 1.8 V to 5.5 V with excellent PSRR (106 dB) over the entire supply range, making them suitable for precision, low-power applications that run directly from batteries without regulation.
The OPA320 (single version) is available in a 5-pin SOT23 package; the OPA320S shutdown single version is available in an 6-pin SOT23 package. The dual OPA2320 is offered in 8-pin SOIC, VSSOP, and SON packages, and the OPA2320S (dual with shutdown) in a 10-pin VSSOP package.
Technical documentation
= Featured
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
ADS8168EVM-PDK
Description
The ADS8168 evaluation module (EVM) performance demonstration kit (PDK) is a platform for evaluating the performance of the ADS8168 successive-approximation register (SAR) analog-to-digital converter (ADC). The ADS8168EVM-PDK includes the ADS8168EVM board, the precision host interface (PHI (...)
Features
- Includes hardware and software required for diagnostic testing, as well as accurate performance of the ADS8168 ADC
- No external power supply required
- Ships with PHI controller that provides a convenient interface to ADS8168EVM over USB 2.0 (or higher) for power delivery, as well as digital input/output
- (...)
ADS8332EVMV2-PDK
Description
The ADS8332 evaluation module (EVM) performance demonstration kit (PDK) is a platform for evaluating the performance of the ADS8332 successive-approximation register (SAR) analog-to-digital converter (ADC). ADS8332EVMV2-PDK includes the ADS8332EVMV2 board, the precision host interface (PHI (...)
Features
- Includes hardware and software required for diagnostic testing, as well as accurate performance evaluation of the ADS8332 ADC
- No external power supply required
- Ships with PHI controller that provides convenient communication interface to ADS8332EVM over USB 2.0 (or higher) for power delivery, as (...)
DIP-ADAPTER-EVM
Description
Speed up your op amp prototyping and testing with the DIP-Adapter-EVM, which provides a fast, easy and inexpensive way to interface with small, surface-mount ICs. You can connect any supported op amp using the included Samtec terminal strips or wire them directly to existing circuits.
The (...)
Features
- Simplifies prototyping of SMT IC’s
- Supports 6 common package types
- Low Cost
Description
The DIYAMP-EVM is a unique evaluation module (EVM) family that provides engineers and do it yourselfers (DIYers) with real-world amplifier circuits, enabling you to quickly evaluate design concepts and verify simulations. It is available in three industry-standard packages (SC70, SOT23, SOIC) and 12 (...)
Features
- 3 packages to choose from: SC70-5, SOT23-5 and SOIC-8
- 12 circuit configurations to choose from: Noninverting, Inverting, Active Filters, Difference Amp, Comparator and more!
- Dual and single supply configurations
- PCB designed for High performance: Optimized for each function
- Multiple interface options (...)
Description
The Universal OPAMPEVM is a series of general purpose blank circuit boards that simplify prototyping circuits for a variety of IC package types. The evaluation module board design allows many different circuits to be constructed easily and quickly. Five models are offered with each targeted for (...)
Description
PLABS-SAR-EVM-PDK is an experimental platform used in conjunction with TI Precision Labs videos to gain a deeper understanding of successive approximation register (SAR) analog-to-digital converter (ADC) circuits. The evaluation module (EVM) platform contains two channels for common SAR (...)
Features
- Intuitive setup – PCB overlay shows the schematic
- No external power supply required
- Includes several coupon boards with different driving amplifier RC filters to facilitate experimentation
- Ships with PHI controller - provides convenient interface to EVM over USB 2.0 (or higher) for power delivery (...)
TIEVM-VIENNARECT
Description
The Vienna rectifier power topology is used in high power three phase power factor (AC-DC) applications such as off-board electric vehicle (EV) chargers and telecom rectifiers. This design illustrates a method to control the power stage using C2000™ microcontrollers. This design uses an (...)
Features
Hardware Features
- EVM with interface to accept HSEC180 controlCARDs
- Greater than 98% peak efficiency
- Less than 2% THD at full load and low line
- Up to 2.4KW design with three phase 400Vac VL-L Input
- Hardware Files are in DigitalPower SDK at solutions\tidm_1000
Software Features
- Free download of Code (...)
Software development
SBAC193A.ZIP (75 KB)
Design tools & simulation
SBOM437E.ZIP (14 KB) - PSpice Model
SBOM438E.ZIP (9 KB) - TINA-TI Spice Model
SBOM439E.TSC (979 KB) - TINA-TI Reference Design
TINA-TI
— TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
ANALOG-ENGINEER-CALC
— The Analog Engineer’s Calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting op-amp gain with feedback (...)
Features
- Expedites circuit design with analog-to-digital converters (ADCs) and digital-to-analog converters (DACs)
- Noise calculations
- Common unit translation
- Solves common amplifier circuit design problems
- Gain selections using standard resistors
- Filter configurations
- Total noise for common amplifier configurations
- (...)
OPAMP-NOISECALC
— This folder contains three tools to help in understandning and managing noise in cicuits. The included tools are:
- A noise generator tool - This is a Lab View 4-Run Time executable that generates Gaussian white noise, uniform white noise, 1/f noise, short noise, and 60Hz line noise. Temporal data (...)
CIRCUIT060001
— This single–supply, low–side, current sensing solution accurately detects load current up to 1A and converts it to a voltage between 50mV and 4.9V. The input current range and output voltage range can be scaled as necessary and larger supplies can be used to accommodate larger swings.
Features
- Senses Temperature between 25°C - 50°C
- Output: 0.05V - 3.25V
- Single 3.3V Supply with half-supply reference
CIRCUIT060002
— This temperature sensing circuit uses a resistor in series with a negative–temperature–coefficient (NTC) thermistor to form a voltage divider, which has the effect of producing an output voltage that is linear over temperature. The circuit uses an op amp in a non–inverting (...)
Features
- Senses Temperature between 25°C - 50°C
- Output: 0.05V - 3.25V
- Single 3.3V Supply with half-supply reference
CIRCUIT060003
— This temperature sensing circuit uses a resistor in series with a positive–temperature–coefficient (PTC) thermistor to form a voltage–divider, which has the effect of producing an output voltage that is linear over temperature. The circuit uses an op amp in a non–inverting (...)
Features
- Senses Temperature between 0°C - 50°C
- Output: 0.05V - 3.25V
- Single 3.3V Supply with half-supply reference
CIRCUIT060004
— This two stage amplifier design amplifies and filters the signal from a passive infrared (PIR) sensor. The circuit includes multiple low–pass and high–pass filters to reduce noise at the output of the circuit to be able to detect motion at long distances and reduce false triggers. This (...)
Features
- Single 5V Supply
- Passes frequencies between 0.7Hz - 10Hz
- AC Gain: 90dB
CIRCUIT060005
— This single–supply, high–side, low–cost current sensing solution detects load current between 50mA and 1A and converters it to an output voltage from 0.25V to 5V. High–side sensing allows for the system to identify ground shorts and does not create a ground disturbance on the load.
Features
- Single 36V supply
- Input: 50mA to 1A
- Output: 0.25V to 5V
CIRCUIT060006
— A strain gauge is a sensor whose resistance varies with applied force. To measure the variation in resistance, the strain gauge is placed in a bridge configuration. This design uses a 2 op amp instrumentation circuit to amplify a differential signal created by the change in resistance of a strain (...)
Features
- Single 5V supply with half-supply reference
- Input: -2.22mV to 2.27mV differential
- Output: 225mV - 4.72V
- Strain gauge resistance variation: 115 - 125 Ohms
- Gain: 1001V/V
CIRCUIT060007
— This single-supply low-side, bidirectional current sensing solution can accurately detect load currents from –1A to 1A. The linear range of the output is from 110mV to 3.19V. Low-side current sensing keeps the common-mode voltage near ground, and is thus most useful in applications with large (...)
Features
- Single 5V supply with half-supply reference
- Input: -2.22mV to 2.27mV differential
- Output: 225mV - 4.72V
- Strain gauge resistance variation: 115 - 125 Ohms
- Gain: 1001V/V
CIRCUIT060008
— This absolute value circuit can turn alternating current (AC) signals to single polarity signals. This circuit functions with limited distortion for ±10-V input signals at frequencies up to 50kHz and for signals as small as ±25mV at frequencies up to 1kHz.
Features
- 30V Split supply with ground reference
- Input: +/-25mV to +/-10V
- Output: 25mV to 10V
CIRCUIT060009
— The precision half-wave rectifier inverts and transfers only the negative-half input of a time varying input signal (preferably sinusoidal) to its output. By appropriately selecting the feedback resistor values, different gains can be achieved. Precision half-wave rectifiers are commonly used with (...)
Features
- 5V Split supply
- Input: +/-0.2mVpp to +/-4Vpp
- Output: 0.1V to 2V
CIRCUIT060010
— This circuit utilizes a triangle wave generator and comparator to generate a 500 kHz pulse-width modulated (PWM) waveform with a duty cycle that is inversely proportional to the input voltage. An op amp and comparator generate a triangle waveform which is applied to the inverting input of a second (...)
Features
- 5V Single supply with half-supply reference
- Input: -2V to 2V
- Output: 0V to 5V
SBAM419.ZIP (22 KB)
SBOC495.ZIP (12 KB)
SBOC499.ZIP (376 KB)
TIDCAP1.ZIP (795 KB)
Reference designs
TIDM-02002
— CLLLC resonant DAB with bidirectional power flow capability and soft switching characteristics is an ideal candidate for Hybrid Electric Vehicle/Electric Vehicle (HEV/EV) on-board chargers and energy storage applications. This design illustrates control of this power topology using a C2000&trade (...)
Design files
-
download PMP21553 Assembly Drawing.pdf (110KB) -
download PMP21553 PCB.pdf (475KB) -
download PMP21553 Gerber.zip (1804KB) -
download PMP21561 Assembly Drawing.pdf (110KB) -
download PMP21561 PCB.pdf (472KB) -
download PMP21561 Gerber.zip (1795KB) -
download PMP21553 BOM (Rev. A).pdf (94KB) -
download PMP21561 BOM (Rev. A).pdf (94KB) -
download PMP21561 CAD Files (Rev. A).zip (592KB) -
download PMP21495 BOM.pdf (109KB) -
download PMP21495 Assembly Drawing.pdf (898KB) -
download PMP21495 PCB.pdf (2843KB) -
download PMP21495 CAD Files.zip (3137KB) -
download PMP21495 Gerber.zip (3381KB) -
download PMP21553 CAD Files (Rev. B).zip (592KB)
TIDM-1000
— Vienna rectifier power topology is used in high power three phase power factor (AC-DC) applications such as off board EV chargers and telecom rectifiers. Control design of the rectifier can be complex. This design illustrates a method to control the power stage using C2000™ microcontrollers (...)
Design files
-
download Vienna Rectifier-Based Three Phase Power Factor Correction Assembly Drawing (Rev. A).pdf (663KB) -
download Vienna Rectifier-Based Three Phase Power Factor Correction Using C2000™ MCUs BOM (Rev. A).pdf (114KB) -
download Vienna Rectifier-Based Three Phase Power Factor Correction CAD Files (Rev. A).zip (4380KB) -
download Vienna Rectifier-Based Three Phase Power Factor Correction Gerber (Rev. A).zip (2578KB) -
download Vienna Rectifier-Based Three Phase Power Factor Correction Using C2000™ MCUs PCB (Rev. A).pdf (3956KB)
TIDA-010054
— This reference design provides an overview on the implementation of a single-phase dual active bridge (DAB) DC/DC converter. DAB topology offers advantages like soft-switching commutations, a decreased number of devices and high efficiency. The design is beneficial where power density, cost, weight (...)
Design files
-
download TIDA-010054 BOM Files.zip (582KB) -
download TIDA-010054 Assembly Files.zip (651KB) -
download TIDA-010054 Layer Plots.zip (2814KB) -
download TIDA-010054 CAD Files.zip (6777KB) -
download TIDA-010054 Gerber.zip (5385KB)
PMP21495
— This reference design is a 6.6 kW, bi-directional, dual-active-bridge resonant converterdesign that allows 380 VDC to 600 VDC input and 280 VDC to 450 VDC output. This design uses the C2000 micro-controller TMS320F280049 along with silicon-carbide (SiC) driver UCC21530-Q1 to drive bridges both on (...)
Design files
-
download PMP21495 BOM.pdf (109KB) -
download PMP21495 Assembly Drawing.pdf (898KB) -
download PMP21495 PCB.pdf (2843KB) -
download PMP21495 CAD Files.zip (3137KB) -
download PMP21495 Gerber.zip (3381KB)
TIDA-00366
— This design provides a reference solution for a three-phase inverter rated up to 10kW, designed using the reinforced isolated gate driver UCC21530, reinforced isolated amplifiers AMC1301 and AMC1311, and MCU TMS320F28027. Lower system cost is achieved by using the AMC1301 to measure motor current (...)
Design files
-
download TIDA-00366 Assembly Drawing (Rev. B).pdf (906KB) -
download TIDA-00366 BOM (Rev. B).pdf (105KB) -
download TIDA-00366 Altium (Rev. B).zip (2891KB) -
download TIDA-00366 Gerber (Rev. B).zip (586KB) -
download TIDA-00366 PCB (Rev. B).pdf (3165KB)
PMP21999
— This 6.6 kW, bi-directional, dual-active-bridge resonant converter reference design allows 380 VDC to 600 VDC input and 280 VDC to 450 VDC output. PCB winding transformer and Rogowski coil synchronous rectifier (SR) control are applied in this design for power density and efficiency optimization. A (...)
Design files
-
download PMP21999 BOM Files.zip (396KB) -
download PMP21999 Assembly Files.zip (1473KB) -
download PMP21999 Layer Plots.zip (2169KB) -
download PMP21999 CAD Files.zip (8523KB) -
download PMP21999 Gerber.zip (8676KB)
TIDA-01540
— The TIDA-01540 reference design reduces system cost and enables a compact design for a reinforced isolated 10kW three phase inverter. A lower system cost and compact form factor is achieved by using a dual gate driver in a single package and bootstrap configuration to generate floating voltages for (...)
Design files
-
download TIDA-01540 BOM.pdf (98KB) -
download TIDA-01540 Assembly Drawing.pdf (538KB) -
download TIDA-01540 PCB.pdf (3057KB) -
download TIDA-01540 Gerber.zip (440KB) -
download TIDA-01540 CAD Files (Rev. A).zip (4705KB)
TIDA-010041
— This reference design highlights a versatile use case for a low-power reset IC and a watchdog timer. With less than 1-µA current consumption, the TPS3840 device can be configured to work either as a comparator (with simple 3-pin configuration) or as a universal power supply supervisor that can (...)
Design files
-
download TIDA-010041 BOM.pdf (48KB) -
download TIDA-010041 CAD Files (Rev. A).zip (1948KB) -
download TIDA-010041 Gerber (Rev. A).zip (383KB) -
download TIDA-010041 Assembly Drawing (Rev. A).pdf (344KB) -
download TIDA-010041 PCB (Rev. A).pdf (2158KB)
TIDA-010032
— IPv6-based grid communications are becoming the standard choice in industrial markets and applications like smart meters and grid automation. The universal data concentrator design provides a complete IPv6-based network solution integrated with Ethernet backbone communication, 6LoWPAN RF mesh (...)
Design files
-
download TIDA-010032 BOM.pdf (73KB) -
download TIDA-010032 Assembly Drawing.pdf (144KB) -
download TIDA-010032 PCB.pdf (924KB) -
download TIDA-010032 CAD Files.zip (911KB) -
download TIDA-010032 Gerber.zip (789KB)
TIDA-01214
— This reference design provides accurate measurements of AC voltage and current inputs using a precision 16-bit SAR ADC over a wide input range, covering protection and measurement range (including sampling requirements of IEC 61850-9-2), simplifying system design and improving trip time performance (...)
Design files
-
download TIDA-01214 BOM Files.zip (520KB) -
download TIDA-01214 Assembly Files.zip (716KB) -
download TIDA-01214 Layer Plots.zip (4008KB) -
download TIDA-01214 Altium.zip (7943KB) -
download TIDA-01214 Gerber.zip (2975KB)
TIDA-01541
— The TIDA-01541 reference design reduces system cost and enables a compact design for isolated phase current and DC link voltage measurement in three-phase inverters, while achieving high bandwidth and sensing accuracy. The output of the isolated amplifiers is interfaced to the internal ADC of the (...)
Design files
-
download TIDA-01541 BOM.pdf (98KB) -
download TIDA-01541 Assembly Drawing.pdf (538KB) -
download TIDA-01541 PCB.pdf (3057KB) -
download TIDA-01541 Gerber.zip (439KB) -
download TIDA-01541 CAD Files (Rev. A).zip (5143KB)
TIPD205
— This single-supply open loop current sensing solution to accurately measure dc, ac and pulsed currents. Allows highly accurate current measurements up to 110 A
Design files
-
download TIPD205 BOM (Rev. A).pdf (52KB) -
download TIPD205 BusBar and Insert.zip (573KB)
TIPD173
— This TI Precision Verified Design details a systematic design methodology for a 16 bit, 1MSPS, single-ended data acquisition (DAQ) block optimized to achieve excellent settling time, power consumption, static performance and dynamic performance for multiplexed applications. The design features (...)
Design files
-
download TIPD173 Altium.zip (302KB) -
download TIPD173 Gerber.zip (50KB) -
download TIPD173 BOM (Rev. A).pdf (106KB)
TIDA-00811
— This reference design provides accurate measurements of ambient light intensity used to detect arc flash faults with a fast response of 1 ms, protecting or minimizing damages to power distribution switchgear. This design also monitors temperature (using switch, analog, digital or remote ), humidity (...)
Design files
-
download TIDA-00811 BOM Files.zip (233KB) -
download TIDA-00811 Assembly Files.zip (345KB) -
download TIDA-00811 Layer Plots.zip (1991KB) -
download TIDA-00811 Altium.zip (4061KB) -
download TIDA-00811 Gerber.zip (1433KB)
TIDA-00378
— The TIDA-00378 TI Design provides an analog front-end solution for measuring PM2.5 and PM10 particle matter. The design detects the light scattered by particles suspended in air. A sample software algorithm is provided to convert the analog output of the design into a particle size and concentration (...)
Design files
-
download TIDA-00378 Assembly Drawing.pdf (132KB) -
download TIDA-00378 PCB.pdf (847KB) -
download TIDA-00378 Gerber.zip (467KB) -
download TIDA-00378 BOM (Rev. A).pdf (119KB) -
download TIDA-00378 CAD Files (Rev. A).zip (1420KB)
TIPD129
— This TI Verified Design implements a single-supply, low-side current sensing solution that can accurately detect load current from 0-1A. The corresponding linear output range is from 0V to 4.9V. This design relies on the LM7705 inverting charge pump to bias the negative supply of the OPA320 to (...)
Design files
-
download TIPD129 BOM.pdf (75KB) -
download TIPD129 Gerber.zip (266KB)
TIPD197
— This circuit is designed to condition and digitize an electrocardiogram signal output from the integrated PACE_OUT buffer on the ADS129x to detect artifacts of an artificial pacemaker. This circuit includes an op amp which serves as a signal conditioner and input driver for a fast-sampling SAR ADC.
Design files
-
download TIPD197 BOM.pdf (193KB)
TIPD169
— This design is for a 16-bit 1MSPS single-ended, multiplexed data acquisition system (DAQ) for dc inputs. The system is composed of a 16-bit successive-approximation-register (SAR) analog-to-digital converter (ADC), SAR ADC driver, reference driver, and multiplexer. The design shows the process to (...)
Design files
-
download TIPD169 BOM.pdf (125KB)
TIPD166
— This design is for a 16-bit, 8-channel analog input module for industrial programmable logic controller (PLC) systems. The circuit is realized with an 8-channel, 16-bit, successive-approximation-register (SAR), analog-to-digital converter (ADC) with an integrated precision reference and analog (...)
Design files
-
download TIPD166 BOM.pdf (165KB) -
download TIPD166 Gerber and Altium.zip (2591KB)
TIPD128
— This TI Verified Design implements a variety of op amps driving capacitive loads from 100pF to 1uF using a isolation resistor. The OPA192 is highlighted due to its ability to drive large capacitive loads with small isolation resistors.
Design files
-
download TIPD128 BOM.pdf (65KB) -
download TIPD128 Gerber.zip (231KB)
TIPD131
— This TI Precision Verified Design provides the theory, component selection, simulation, PCB design, and measurement details for a single ended input to differential output circuit which converts a single ended input of +0.1V to +2.4V into a differential output of ± 2.3V on a single +2.7V (...)
Design files
-
download TIPD131 Gerber.zip (399KB) -
download TIPD131 BOM.pdf (61KB)
TIPD176
— This circuit consists of a single-supply op amp configured as a transimpedance amplifier with a bandwidth greater than 1MHz for amplifying the light- dependent current of a photodiode. A small bias voltage derived from the positive supply and applied to the op amp’s non-inverting input. This (...)
Design files
-
download TIPD176 BOM.pdf (72KB)
CAD/CAE symbols
| Package | Pins | Download |
|---|---|---|
| SOT-23 (DBV) | 5 | View options |
| SOT-23 (DBV) | 6 | View options |
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