Ultra-low power, 50MHz rail-to-rail out, negative rail in, voltage-feedback op amp
Product details
Parameters
Package | Pins | Size
Features
- Ultra-low power:
- Supply voltage: 2.7 V to 5.4 V
- Quiescent current (IQ): 170 µA/ch (typical)
- Bandwidth: 50 MHz (G = 1 V/V)
- Slew rate: 26 V/µs
- Settling time (0.1%): 88 ns (2-VSTEP)
- HD2, HD3: –131 dBc, –146 dBc at 10 kHz (2 VPP)
- Input voltage noise: 12 nV/√Hz (f = 10 kHz)
- Input offset voltage: 350 µV (±1.9 mV max)
- Negative rail input, rail-to-rail output (RRO)
- Input voltage range: –0.2 V to 3.9 V
(5-V supply)
- Input voltage range: –0.2 V to 3.9 V
- Operating temperature range:
–40°C to +125°C
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Description
The OPA2834 is a dual-channel, ultra-low-power, rail-to-rail output, negative-rail input, voltage-feedback (VFB) operational amplifier designed to operate over a power-supply range of 2.7 V to 5.4 V with a single supply, or ±1.35 V to ±2.7 V with a dual supply. Consuming only 170 µA per channel and with a unity-gain bandwidth of 50 MHz, this amplifier sets an industry-leading performance-to-power ratio for rail-to-rail amplifiers.
For battery-powered and portable applications where low power consumption is of key importance, the OPA2834 offers an excellent bandwidth to IQ ratio. OPA2834 offers very low distortion making it very suitable for data acquisition systems and microphone pre-amplifier.
See the Device Comparison Table for a selection of low-power, low-noise, 5-V amplifiers from Texas Instruments with a gain-bandwidth product from 20 MHz to 300 MHz.
Technical documentation
= Featured
| Type | Title | Date | |
|---|---|---|---|
| * | Datasheet | OPA2834 50-MHz, 170-µA, Negative-Rail In, Rail-to-Rail Out, Voltage-Feedback Amplifier datasheet (Rev. A) | Jul. 12, 2019 |
| Technical articles | How to reduce distortion in high-voltage, high-frequency signal generation for AWGs | Oct. 30, 2018 | |
| Technical articles | What are the advantages of using JFET-input amplifiers in high-speed applications? | Jun. 18, 2018 | |
| Technical articles | Unique active mux capability combines buffer and switch into one solution | Oct. 10, 2017 | |
| Technical articles | How to minimize filter loss when you drive an ADC | Oct. 20, 2016 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
DEM-OPA-MSOP-2A
Description
The DEM-OPA-MSOP-2A demonstration fixture helps designers evaluate the operation and performance of TI's dual, high speed, wideband operational amplifiers. This unpopulated PC board is compatible with products offered in the 8-lead MSOP (DGK) package.
For more information on these types of op amps, as (...)
For more information on these types of op amps, as (...)
Design tools & simulation
SBOMAZ4.TSC (21 KB) - TINA-TI Reference Design
SBOMB91.ZIP (19 KB) - PSpice Model
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
- (...)
VOLT-DIVIDER-CALC — VOLT-DIVIDER-CALC quickly determines a set of resistors for a voltage divider. This KnowledgeBase Javascript utility can be used to find a set of resistors for a voltage divider to achieve the desired output voltage. This calculator can also be used to design non-inverting attentuation circuits.
(...)
CAD/CAE symbols
| Package | Pins | Download |
|---|---|---|
| VSSOP (DGK) | 8 | View options |
Ordering & quality
Support & training
TI E2E™ forums with technical support from TI engineers
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