Nanopower, 350 nA, 1.6 V RRIO Single, CMOS input op amp
Product details
Parameters
Package | Pins | Size
Features
- For VS = 5 V, Typical Unless Otherwise Noted
- Supply Current at VCM = 0.3 V 400 nA (Max)
- Operating Voltage Range 1.6 V to 5.5 V
- Low TCVOS 3.5 µV/°C (Max)
- VOS 1 mV (Max)
- Input Bias Current 40 fA
- PSRR 109 dB
- CMRR 102 dB
- Open-Loop Gain 132 dB
- Gain Bandwidth Product 6.2 kHz
- Slew Rate 2.4 V/ms
- Input Voltage Noise at f = 100 Hz 255 nV/√Hz
- Temperature Range –40°C to 125°C
Description
The LPV521 is a single nanopower 552-nW amplifier designed for ultra long life battery applications. The operating voltage range of 1.6 V to 5.5 V coupled with typically 351 nA of supply current make it well suited for RFID readers and remote sensor nanopower applications. The device has input common mode voltage 0.1 V over the rails, guaranteed TCVOS and voltage swing to the rail output performance. The LPV521 has a carefully designed CMOS input stage that outperforms competitors with typically 40 fA IBIAS currents. This low input current significantly reduces IBIAS and IOS errors introduced in megohm resistance, high impedance photodiode, and charge sense situations. The LPV521 is a member of the PowerWise family and has an exceptional power-to-performance ratio.
The wide input common mode voltage range, guaranteed 1 mV VOS and 3.5 µV/°C TCVOS enables accurate and stable measurement for both high-side and low-side current sensing.
EMI protection was designed into the device to reduce sensitivity to unwanted RF signals from cell phones or other RFID readers.
The LPV521 is offered in the 5-pin SC70 package.
Technical documentation
| Type | Title | Date | |
|---|---|---|---|
| * | Datasheet | LPV521 NanoPower, 1.8-V, RRIO, CMOS Input, Operational Amplifier datasheet (Rev. D) | Dec. 30, 2014 |
| Technical articles | What is an op amp? | Jan. 21, 2020 | |
| Technical articles | Designing tiny microphone circuits with the industry’s smallest op amp | Apr. 12, 2018 | |
| Technical articles | How to lay out a PCB for high-performance, low-side current-sensing designs | Feb. 06, 2018 | |
| Technical articles | Low-side current sensing for high-performance cost-sensitive applications | Jan. 22, 2018 | |
| Application notes | Simplifying Environmental Measurements in Power Conscious Factory and Building A (Rev. A) | Jan. 09, 2018 | |
| Application notes | Advantages of using Nanopower Zero Drift Amp for Mobile Phone Battery Voltage Mo (Rev. A) | Dec. 21, 2017 | |
| White papers | The Signal e-book: A compendium of blog posts on op amp design topics | Mar. 28, 2017 | |
| User guides | 551012875, 551012922 Universal Op Amp Evaluation Boards (SOT-23 and SC-70) (Rev. C) | May 01, 2013 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
Texas Instrument offers this blank universal Evaluation Board to help you evaluate the performance of any low voltage, low power operational amplifier that is offered in the SC-70 package. Resistors, capacitors, or any other components can be easily mounted on this board. These components can be (...)
Features
- Universal for all low voltage, low power op amps.
- Dual sided layout for different pin-outs.
- Accommodates components of any of these sizes:
1206
0805
0603 - Quick and easy evaluation.
Description
The TI Precision Amplifier Quickstart Kit simplifies op amp selection, design, and evaluation with samples of six op amps and an evaluation module for prototyping surface-mount ICs. The kit is the perfect starting point for your amplifier designs.
You may also be interested in TI Precision Labs, the (...)
Features
The kit includes:
- Six samples: Three low-power, low-voltage amplifiers and three low-power, wide-supply amplifiers. See the table below for the complete list.
- DIP Adapter Evaluation Module (DIP-ADAPTER-EVM) for prototyping surface-mount ICs. The EVM supports the following package types: D or U (...)
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
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 (...)
Design tools & simulation
Features
- Leverages Cadence PSpice Technology
- Preinstalled library with a suite of digital models to enable worst-case timing analysis
- Dynamic updates ensure you have access to most current device models
- Optimized for simulation speed without loss of accuracy
- Supports simultaneous analysis of multiple products
- (...)
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
- (...)
Reference designs
Design files
Design files
-
download TIDA-00759 BOM .pdf (140KB) -
download TIDA-00759 Assembly Drawing .pdf (234KB) -
download TIDA-00759 PCB.pdf (1760KB) -
download TIDA-00759 Altium.zip (875KB) -
download TIDA-00759 Gerber.zip (607KB)
CAD/CAE symbols
| Package | Pins | Download |
|---|---|---|
| SC70 (DCK) | 5 | View options |
Ordering & quality
Support & training
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