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Product details

Parameters

Architecture Voltage FB Number of channels (#) 1 Total supply voltage (Min) (+5V=5, +/-5V=10) 2.7 Total supply voltage (Max) (+5V=5, +/-5V=10) 5.4 GBW (Typ) (MHz) 50 BW @ Acl (MHz) 105 Acl, min spec gain (V/V) 1 Slew rate (Typ) (V/us) 105 Vn at flatband (Typ) (nV/rtHz) 4.7 Vn at 1 kHz (Typ) (nV/rtHz) 4.7 Iq per channel (Typ) (mA) 0.592 Vos (offset voltage @ 25 C) (Max) (mV) 0.165 Rail-to-rail In to V-, Out Features Shutdown Rating Catalog Operating temperature range (C) -40 to 125 CMRR (Typ) (dB) 110 Input bias current (Max) (pA) 520000 Offset drift (Typ) (uV/C) 0.4 Output current (Typ) (mA) 50 2nd harmonic (dBc) 120 3rd harmonic (dBc) 145 @ MHz 0.1 open-in-new Find other High-speed op amps (GBW>=50MHz)

Package | Pins | Size

SOT-23 (DBV) 6 5 mm² 2.9 x 1.6 SOT-SC70 (DCK) 5 4 mm² 2 x 2.1 open-in-new Find other High-speed op amps (GBW>=50MHz)

Features

  • Bandwidth: 105 MHz (AV = 1 V/V)
  • Very Low (Trimmed) Supply Current: 600 µA
  • Gain Bandwidth Product: 50 MHz
  • Slew Rate: 105 V/µs
  • Negative Rail Input, Rail-to-Rail Output
  • Single-Supply Operating Range: 2.7 V to 5.4 V
  • 25°C Input Offset: ±130 µV (Max)
  • Input Offset Voltage Drift (DCK Package):
    < ±1.6 µV/°C (Maximum)
  • Input Voltage Noise: 4.7 nV/√Hz (> 100 Hz)
  • HD2: –120 dBc at 2 VPP, 100 kHz
  • HD3: –145 dBc at 2 VPP, 100 kHz
  • Settling Time: 35 ns, 0.5-V Step to 0.1%
  • 5-µA Shutdown Current With Fast Recovery From
    Shutdown for Power Scaling Applications

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open-in-new Find other High-speed op amps (GBW>=50MHz)

Description

The OPA837 and OPA2837 are single- and dual-channel unity-gain stable, voltage-feedback amplifiers that provide among the highest MHz per mW of bandwidth versus power among precision op amps. Using only 600 µA per channel on a single 5-V supply, these 3.0-mW devices deliver 105-MHz bandwidth at a gain of 1 V/V. The very low trimmed offset voltage of ±130 µV (maximum) comes with a typical (±1σ) drift of ±0.4 µV/°C.

Ideally suited to single-ended, successive-approximation register (SAR) analog-to-digital-converter (ADC) driving applications, the OPAx837 provides one of the lowest input spot noise levels at 4.7 nV/√Hz for the 3-mW quiescent power. The very high 50-MHz gain bandwidth product provides the low output impedance to high frequencies required to supply the fast charging currents in SAR ADC driver applications. This low dynamic output impedance is also suitable for reference buffer applications with precision ADCs. The single-channel OPA837 is available in a 6-pin SOT-23 package (that includes a power shutdown feature) and a 5-pin SC70 package whereas the dual-channel OPA2837 is available in an 8-pin VSSOP package and a 10-pin WQFN package.

The OPAx837 is characterized for operation over the a wide temperature range of –40°C to +125°C.

open-in-new Find other High-speed op amps (GBW>=50MHz)
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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 9
Type Title Date
* Datasheet OPAx837 Low-Power, Precision, 105-MHz, Voltage-Feedback Op Amp datasheet (Rev. D) Dec. 12, 2018
Application note Higher accuracy using an external amplifier in ultrasonic flow measurement Feb. 05, 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
User guide OPA837DBV Evaluation Module Jun. 20, 2017
User guide OPA837DCK Evaluation Module Jun. 20, 2017
Technical articles How to minimize filter loss when you drive an ADC Oct. 20, 2016
Application note Noise Analysis for High Speed Op Amps (Rev. A) Jan. 17, 2005

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARD Download
99
Description
The OPA837DBVEVM is an evaluation module for the single OPA837 amplifier in the DBV (SOT23-6) package. This evaluation module is designed to quickly and easily demonstrate the functionality and versatility of the amplifier. The EVM is ready to connect to power, signal source, and test instruments (...)
Features
  • Configured for split-supply operation and easily modified for single supply 
  • Default gain of 1 V/V configuration can be easily reconfigured for other gains
  • Designed for easy connection to standard 50-Ω input and output impedance test equipment 
  • Inputs and outputs include SMA connectors
EVALUATION BOARD Download
99
Description
The OPA837DCKEVM is an evaluation module for the single OPA837 amplifier in the DCK (SC70-5) package. This evaluation module is designed to quickly and easily demonstrate the functionality and versatility of the amplifier. The EVM is ready to connect to power, signal source, and test instruments (...)
Features
  • Configured for split-supply operation and easily modified for single supply
  • Default gain of 1 V/V configuration can be easily reconfigured for other gains
  • Designed for easy connection to standard 50-Ω input and output impedance test equipment 
  • Inputs and outputs include SMA connectors

Design tools & simulation

SIMULATION MODEL Download
SBOMAH2B.ZIP (13 KB) - TINA-TI Spice Model
SIMULATION MODEL Download
SBOMAH3C.TSC (49 KB) - TINA-TI Reference Design
SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — 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 (...)
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
  • (...)
SIMULATION TOOL Download
SPICE-based analog simulation program
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 (...)
CALCULATION TOOL Download
Analog engineer's calculator
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
  • (...)
CALCULATION TOOL Download
Voltage Divider Determines A Set of Resistors for a Voltage Divider
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.

(...)

Reference designs

REFERENCE DESIGNS Download
Wired-OR MUX and PGA Reference Design
TIDA-01565 — This board demonstrates a wired-OR multiplexer (MUX) and a programmable gain amplifier (PGA) application of the OPA837 operational amplifier. These applications are made possible with the high-impedance output of the amplifier and the high-impedance inverting input while in power-down (PD) mode. It (...)
document-generic Schematic
REFERENCE DESIGNS Download
ADC Voltage Reference Buffer Optimization Reference Design for High Performance DAQ Systems
TIDA-01055 — The TIDA-01055 reference design for high performance DAQ Systems optimizes the ADC reference buffer to improve SNR performance and reduce power consumption with the TI OPA837 high-speed op amp. This device is used in a composite buffer configuration and provides a 22% power improvement over (...)
document-generic Schematic

CAD/CAE symbols

Package Pins Download
SC70 (DCK) 5 View options
SOT-23 (DBV) 6 View options

Ordering & quality

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  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Support & training

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