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High-speed op amps (GBW>=50MHz)

OPA2834

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Ultra-low power, 50MHz rail-to-rail out, negative rail in, voltage-feedback op amp

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Data sheet

OPA2834

ACTIVE
Data sheet Order now

Product details

Architecture Voltage FB Number of channels (#) 2 Total supply voltage (Min) (+5V=5, +/-5V=10) 2.7 Total supply voltage (Max) (+5V=5, +/-5V=10) 5.4 GBW (Typ) (MHz) 20 BW @ Acl (MHz) 50 Acl, min spec gain (V/V) 1 Slew rate (Typ) (V/us) 26 Vn at flatband (Typ) (nV/rtHz) 12 Vn at 1 kHz (Typ) (nV/rtHz) 12 Iq per channel (Typ) (mA) 0.17 Vos (offset voltage @ 25 C) (Max) (mV) 1.9 Rail-to-rail In to V-, Out Rating Catalog Operating temperature range (C) -40 to 125 CMRR (Typ) (dB) 104 Input bias current (Max) (pA) 90000 Offset drift (Typ) (uV/C) 1.2 Output current (Typ) (mA) 20 2nd harmonic (dBc) 131 3rd harmonic (dBc) 146 @ MHz 0.01
Architecture Voltage FB Number of channels (#) 2 Total supply voltage (Min) (+5V=5, +/-5V=10) 2.7 Total supply voltage (Max) (+5V=5, +/-5V=10) 5.4 GBW (Typ) (MHz) 20 BW @ Acl (MHz) 50 Acl, min spec gain (V/V) 1 Slew rate (Typ) (V/us) 26 Vn at flatband (Typ) (nV/rtHz) 12 Vn at 1 kHz (Typ) (nV/rtHz) 12 Iq per channel (Typ) (mA) 0.17 Vos (offset voltage @ 25 C) (Max) (mV) 1.9 Rail-to-rail In to V-, Out Rating Catalog Operating temperature range (C) -40 to 125 CMRR (Typ) (dB) 104 Input bias current (Max) (pA) 90000 Offset drift (Typ) (uV/C) 1.2 Output current (Typ) (mA) 20 2nd harmonic (dBc) 131 3rd harmonic (dBc) 146 @ MHz 0.01
VSSOP (DGK) 8 15 mm² 3 x 4.9
  • 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)
  • Operating temperature range:
    –40°C to +125°C
  • 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)
  • Operating temperature range:
    –40°C to +125°C

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.

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.
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Technical documentation

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Type Title Date
* Data sheet OPA2834 50-MHz, 170-µA, Negative-Rail In, Rail-to-Rail Out, Voltage-Feedback Amplifier datasheet (Rev. A) 12 Jul 2019
Technical article How to reduce distortion in high-voltage, high-frequency signal generation for AWGs 30 Oct 2018
Technical article What are the advantages of using JFET-input amplifiers in high-speed applications? 19 Jun 2018
Technical article Unique active mux capability combines buffer and switch into one solution 10 Oct 2017
Technical article How to minimize filter loss when you drive an ADC 20 Oct 2016

Design & development

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Evaluation board

DEM-OPA-MSOP-2A — Dual op amp evaluation module for MSOP-8 package

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.
 
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Simulation model

OPA2834 TINA-TI SPICE MODEL

SBOMAZ4.TSC (21 KB) - TINA-TI Reference Design
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Simulation model

OPA2834 PSpice Model (Rev. A)

SBOMB91A.ZIP (34 KB) - PSpice Model
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Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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TINA-TI — SPICE-based analog simulation program

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 (...)
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Calculation tool

ANALOG-ENGINEER-CALC — Analog engineer's calculator

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 (...)
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Calculation tool

VOLT-DIVIDER-CALC — Voltage Divider Determines A Set of Resistors for a Voltage Divider

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.

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