Home Amplifiers Operational amplifiers (op amps) High-speed op amps (GBW ≥ 50 MHz)
Home
Amplifiers
Operational amplifiers (op amps)
High-speed op amps (GBW ≥ 50 MHz)

OPA835

ACTIVE

Ultra Low Power, Rail to Rail Out, Negative Rail In, VFB Amplifier

Order now
Data sheet

OPA835

ACTIVE
Data sheet Order now

Product details

Architecture Voltage FB Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.5 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5 GBW (typ) (MHz) 30 BW at Acl (MHz) 56 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 160 Vn at flatband (typ) (nV√Hz) 9.3 Vn at 1 kHz (typ) (nV√Hz) 9.3 Iq per channel (typ) (mA) 0.25 Vos (offset voltage at 25°C) (max) (mV) 0.5 Rail-to-rail In to V-, Out Features Shutdown Rating Catalog Operating temperature range (°C) -40 to 125 CMRR (typ) (dB) 113 Input bias current (max) (pA) 400000 Offset drift (typ) (µV/°C) 2.25 Iout (typ) (mA) 40 2nd harmonic (dBc) 70 3rd harmonic (dBc) 73 Frequency of harmonic distortion measurement (MHz) 1
Architecture Voltage FB Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.5 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5 GBW (typ) (MHz) 30 BW at Acl (MHz) 56 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 160 Vn at flatband (typ) (nV√Hz) 9.3 Vn at 1 kHz (typ) (nV√Hz) 9.3 Iq per channel (typ) (mA) 0.25 Vos (offset voltage at 25°C) (max) (mV) 0.5 Rail-to-rail In to V-, Out Features Shutdown Rating Catalog Operating temperature range (°C) -40 to 125 CMRR (typ) (dB) 113 Input bias current (max) (pA) 400000 Offset drift (typ) (µV/°C) 2.25 Iout (typ) (mA) 40 2nd harmonic (dBc) 70 3rd harmonic (dBc) 73 Frequency of harmonic distortion measurement (MHz) 1
SOT-23 (DBV) 6 8.12 mm² 2.9 x 2.8 WQFN (RUN) 10 4 mm² 2 x 2
  • Ultra-Low Power
    • Supply Voltage: 2.5 V to 5.5 V
    • Quiescent Current: 250 µA/ch (Typical)
    • Power Down Mode: 0.5 µA (Typical)
  • Bandwidth: 56 MHz (AV = 1 V/V)
  • Slew Rate: 160 V/µs
  • Rise Time: 10 ns (2 VSTEP)
  • Settling Time (0.1%): 55 ns (2 VSTEP)
  • Overdrive Recovery Time: 200 ns
  • SNR: 0.00015% (–116.4 dBc) at 1 kHz (1 VRMS)
  • THD: 0.00003% (–130 dBc) at 1 kHz (1 VRMS)
  • HD2/HD3: –70 dBc/–73 dBc at 1 MHz (2 VPP)
  • Input Voltage Noise: 9.3 nV/√ Hz (f = 100 kHz)
  • Input Offset Voltage: 100 µV (±500-µV Maximum)
  • CMRR: 113 dB
  • Output Current Drive: 40 mA
  • RRO: Rail-to-Rail Output
  • 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: 2.5 V to 5.5 V
    • Quiescent Current: 250 µA/ch (Typical)
    • Power Down Mode: 0.5 µA (Typical)
  • Bandwidth: 56 MHz (AV = 1 V/V)
  • Slew Rate: 160 V/µs
  • Rise Time: 10 ns (2 VSTEP)
  • Settling Time (0.1%): 55 ns (2 VSTEP)
  • Overdrive Recovery Time: 200 ns
  • SNR: 0.00015% (–116.4 dBc) at 1 kHz (1 VRMS)
  • THD: 0.00003% (–130 dBc) at 1 kHz (1 VRMS)
  • HD2/HD3: –70 dBc/–73 dBc at 1 MHz (2 VPP)
  • Input Voltage Noise: 9.3 nV/√ Hz (f = 100 kHz)
  • Input Offset Voltage: 100 µV (±500-µV Maximum)
  • CMRR: 113 dB
  • Output Current Drive: 40 mA
  • RRO: Rail-to-Rail Output
  • Input Voltage Range: –0.2 V to 3.9 V (5-V Supply)
  • Operating Temperature Range: –40°C to +125°C

The OPA835 and OPA2835 devices (OPAx835) are single and dual ultra-low-power, rail-to-rail output, negative-rail input, voltage-feedback (VFB) operational amplifiers designed to operate over a power supply range of 2.5-V to 5.5-V with a single supply, or ±1.25-V to ±2.75-V with a dual supply. Consuming only 250 µA per channel and with a unity gain bandwidth of 56 MHz, these amplifiers set an industry-leading performance-to-power ratio for rail-to-rail amplifiers.

For battery-powered, portable applications where power is of key importance, the low power consumption and high-frequency performance of the OPA835 and OPA2835 devices offers performance versus power that is not attainable in other devices. Coupled with a power-savings mode to reduce current to < 1.5 µA, these devices offer an attractive solution for high-frequency amplifiers in battery-powered applications.

The OPA835 RUN package option includes integrated gain-setting resistors for the smallest possible footprint on a printed-circuit-board (approximately 2.00 mm × 2.00 mm). By adding circuit traces on the PCB, gains of +1, –1, –1.33, +2, +2.33, –3, +4, –4, +5, –5.33, +6.33, –7, +8 and inverting attenuations of –0.1429, –0.1875, –0.25, –0.33, –0.75 can be achieved. See Table 9-1 and Table 9-2 for details.

The OPA835 and OPA2835 devices are characterized for operation over the extended industrial temperature range of –40°C to +125°C.

The OPA835 and OPA2835 devices (OPAx835) are single and dual ultra-low-power, rail-to-rail output, negative-rail input, voltage-feedback (VFB) operational amplifiers designed to operate over a power supply range of 2.5-V to 5.5-V with a single supply, or ±1.25-V to ±2.75-V with a dual supply. Consuming only 250 µA per channel and with a unity gain bandwidth of 56 MHz, these amplifiers set an industry-leading performance-to-power ratio for rail-to-rail amplifiers.

For battery-powered, portable applications where power is of key importance, the low power consumption and high-frequency performance of the OPA835 and OPA2835 devices offers performance versus power that is not attainable in other devices. Coupled with a power-savings mode to reduce current to < 1.5 µA, these devices offer an attractive solution for high-frequency amplifiers in battery-powered applications.

The OPA835 RUN package option includes integrated gain-setting resistors for the smallest possible footprint on a printed-circuit-board (approximately 2.00 mm × 2.00 mm). By adding circuit traces on the PCB, gains of +1, –1, –1.33, +2, +2.33, –3, +4, –4, +5, –5.33, +6.33, –7, +8 and inverting attenuations of –0.1429, –0.1875, –0.25, –0.33, –0.75 can be achieved. See Table 9-1 and Table 9-2 for details.

The OPA835 and OPA2835 devices are characterized for operation over the extended industrial temperature range of –40°C to +125°C.
open-in-new Find other High-speed op amps (GBW ≥ 50 MHz)
Download View video with transcript Video

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 11
Type Title Date
* Data sheet OPAx835 Ultra-Low-Power, Rail-to-Rail Out, Negative Rail In, VFB Op Amp datasheet (Rev. J) PDF | HTML 11 Mar 2021
E-book Ein Techniker-Leitfaden für Industrieroboter-Designs 25 Mar 2020
E-book E-book: An engineer’s guide to industrial robot designs 12 Feb 2020
Application note Higher accuracy using an external amplifier in ultrasonic flow measurement 05 Feb 2019
E-book The Signal e-book: A compendium of blog posts on op amp design topics 28 Mar 2017
Application note OPA835 Op Amp Applications (Rev. B) 19 Oct 2016
Technical article Reducing amplifier power consumption for SAR ADC drivers 29 Mar 2013
EVM User's guide OPA835DBV and OPA836DBV EVM User's Guide 08 Mar 2011
Analog Design Journal Designing for low distortion with high-speed op amps 02 Mar 2005
Application note Noise Analysis for High Speed Op Amps (Rev. A) 17 Jan 2005
Application note Voltage Feedback vs. Current Feedback Op Amps 30 Nov 1998

Design & development

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

Evaluation board

ADS7945EVM-PDK — ADS7945 Performance Demonstration Kit

The ADS794xEVM-PDK is designed to evaluate the ADS7945 and ADS7946 analog-to-digital converters. These converters are 14-bit dual-channel differential SAR converters with a maximum throughput rate of 2MSPS. The ADS7945 offers fully-differential input voltages while the ADS7946’s pseudo (...)

User guide: PDF
View options
Evaluation board

OPA835IDBVEVM — OPA835 evaluation module for DBV package

The OPA835IDBVEVM is an evaluation module for the single, OPA835 in the DBV (6-lead SOT-23) package.

The OPA835IDBVEVM and OPA836IDBVEVM are designed to quickly demonstrate the functionality and versatility of the amplifier(s). The EVM is ready to connect to power, signal source, and test (...)

User guide: PDF
Not available on TI.com
Simulation model

OPA835 PSPICE Model (Rev. B)

SLOM221B.ZIP (7 KB) - PSpice Model
Download
Simulation model

OPA835 TINA-TI Reference Design (Rev. C)

SLOM223C.TSC (6639 KB) - TINA-TI Reference Design
Download
Simulation model

OPA835 TINA-TI Spice Model (Rev. C)

SLOM222C.ZIP (13 KB) - TINA-TI Spice Model
Download
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 operational-amplifier (...)
Download
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.

(...)

Design now
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 (...)
Request
Simulation tool

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 (...)
User guide: PDF
View options
Reference designs

TIDA-00778 — Current Sensing with <1-us Settling for 1-, 2- & 3-Shunt FOC in 3-Phase Inverter Reference Design

The TIDA-00778 reference design demonstrates fast and accurate current sensing for a three-phase motor driven with sensorless field-oriented control (FOC). Drives with lower audible noise require faster andaccurate current sensing. The most common low-cost current-sensing methods use a single (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-00929 — Spectrum Analyzer Signal Conditioning and Processing for Capturing Arc Signatures Reference Design

This reference design demonstrates bandwidth-optimized analog front end (AFE) and real-time FIR implementation using low power to capture broadband frequency spectrum in any waveform. An operational amplifier in each signal path is chosen based on the gain, signal bandwidth, low noise and (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIPD168 — Three 12-Bit Data Acquisition Reference Designs Optimized for Low Power and Ultra-Small Form Factor

This Verified Precision Design details the design procedure, simulated results, and showcases the actual performance of a 12-bit discrete data acquisition block using the ADS7042, optimized for extremely low power, small form factor applications for the following three different optimizations: 

(...)

User guide: PDF
Schematic: PDF
Package Pins Download
SOT-23 (DBV) 6 View options
WQFN (RUN) 10 View options
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos