Product details

Number of channels (#) 1 GBW (Typ) (MHz) 5500 Total supply voltage (Max) (+5V=5, +/-5V=10) 5.25 Total supply voltage (Min) (+5V=5, +/-5V=10) 3.3 Vos (offset voltage @ 25 C) (Max) (mV) 2.5 Rail-to-rail No Features Shutdown, Decompensated BW @ Acl (MHz) 1200 Operating temperature range (C) -40 to 125
Number of channels (#) 1 GBW (Typ) (MHz) 5500 Total supply voltage (Max) (+5V=5, +/-5V=10) 5.25 Total supply voltage (Min) (+5V=5, +/-5V=10) 3.3 Vos (offset voltage @ 25 C) (Max) (mV) 2.5 Rail-to-rail No Features Shutdown, Decompensated BW @ Acl (MHz) 1200 Operating temperature range (C) -40 to 125
WSON (DSG) 8 4 mm² 2 x 2
  • High Gain Bandwidth Product: 5.5 GHz
  • Decompensated, Gain ≥ 7 V/V (Stable)
  • Ultra-Low Bias Current MOSFET Inputs: 10 pA
  • Low Input Voltage Noise: 2.5 nV/√Hz
  • Slew rate: 2000 V/µs
  • Low Input Capacitance:
    • Common-Mode: 0.6 pF
    • Differential: 0.2 pF
  • Wide Input Common-Mode Range:
    • 1.4 V from Positive Supply
    • Includes Negative Supply
  • 2.5 VPP Output Swing in TIA Configuration
  • Supply Voltage Range: 3.3 V to 5.25 V
  • Quiescent Current: 20.5 mA
  • Available in 8-Pin WSON Package
  • Temperature Range: –40 to +125°C
  • High Gain Bandwidth Product: 5.5 GHz
  • Decompensated, Gain ≥ 7 V/V (Stable)
  • Ultra-Low Bias Current MOSFET Inputs: 10 pA
  • Low Input Voltage Noise: 2.5 nV/√Hz
  • Slew rate: 2000 V/µs
  • Low Input Capacitance:
    • Common-Mode: 0.6 pF
    • Differential: 0.2 pF
  • Wide Input Common-Mode Range:
    • 1.4 V from Positive Supply
    • Includes Negative Supply
  • 2.5 VPP Output Swing in TIA Configuration
  • Supply Voltage Range: 3.3 V to 5.25 V
  • Quiescent Current: 20.5 mA
  • Available in 8-Pin WSON Package
  • Temperature Range: –40 to +125°C

The OPA858 is a wideband, low-noise, operational amplifier with CMOS inputs for wideband transimpedance and voltage amplifier applications. When the device is configured as a transimpedance amplifier (TIA), the 5.5-GHz gain bandwidth product (GBWP) enables applications requiring high closed-loop bandwidths at transimpedance gains in the tens to hundreds of kΩs range.

The graph below demonstrates the bandwidth and noise performance of the OPA858 as a function of the photodiode capacitance when the amplifier is configured as a TIA. The total noise is calculated over a bandwidth range extending from DC to the calculated f-3dB frequency on the left-hand scale. The OPA858 package features a feedback pin (FB) that simplifies the feedback network connection between the input and the output.

The OPA858 is optimized for use in optical Time-of-Flight (ToF) systems like the one shown in the figure below where the OPA858 is used with the TDC7201 time-to-digital converter. The OPA858 can be used in high-resolution LIDAR systems with a high-speed analog-to-digital converter (ADC) and a differential output amplifier like the THS4541 or LMH5401 to drive the ADC.

The OPA858 is a wideband, low-noise, operational amplifier with CMOS inputs for wideband transimpedance and voltage amplifier applications. When the device is configured as a transimpedance amplifier (TIA), the 5.5-GHz gain bandwidth product (GBWP) enables applications requiring high closed-loop bandwidths at transimpedance gains in the tens to hundreds of kΩs range.

The graph below demonstrates the bandwidth and noise performance of the OPA858 as a function of the photodiode capacitance when the amplifier is configured as a TIA. The total noise is calculated over a bandwidth range extending from DC to the calculated f-3dB frequency on the left-hand scale. The OPA858 package features a feedback pin (FB) that simplifies the feedback network connection between the input and the output.

The OPA858 is optimized for use in optical Time-of-Flight (ToF) systems like the one shown in the figure below where the OPA858 is used with the TDC7201 time-to-digital converter. The OPA858 can be used in high-resolution LIDAR systems with a high-speed analog-to-digital converter (ADC) and a differential output amplifier like the THS4541 or LMH5401 to drive the ADC.

Download

Similar products you might be interested in

open-in-new Compare products
Similar functionality to the compared device.
LMH32401 ACTIVE Programmable gain, differential output high-speed transimpedance amplifier This device has an integrated TIA with differential outputs for LiDAR applications

Technical documentation

star = Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 19
Type Title Date
* Data sheet OPA858 5.5-GHz Gain Bandwidth Product, Gain of 7 V/V Stable, FET Input Amplifier datasheet (Rev. A) 30 Jul 2018
Application note High Speed ADCs and Amplifiers for Flow Cytometry Applications 12 Oct 2020
Technical article 3 common questions when designing with high-speed amplifiers 17 Jul 2020
White paper An Introduction to Automotive LIDAR (Rev. A) 21 May 2020
Application note Time of Flight and LIDAR - Optical Front End Design 04 Feb 2020
Analog design journal Maximizing the dynamic range of analog fronts ends having a transimpedance amp 14 Jun 2019
Analog design journal Easily improve the performance of analog circuits with decompensated amplifiers (Rev. A) 21 May 2019
Application note Transimpedance amplifier circuit. (Rev. A) 01 Feb 2019
User guide DEM-OPA-WSON8-EVM User's Guide 07 Sep 2018
User guide OPA858 Op Amp EVM User's Guide 02 Oct 2017
Technical article What you need to know about transimpedance amplifiers – part 2 01 Sep 2016
Technical article What you need to know about transimpedance amplifiers – part 1 06 May 2016
Technical article SPICE it up: How to extract the input capacitance of an op amp (part 3) 21 Mar 2016
Application note AN-1604 Decompensated Operational Amplifiers (Rev. B) 01 May 2013
Application note AN-1803 Design Considerations for a Transimpedance Amplifier (Rev. A) 01 May 2013
Application note Transimpedance Considerations for High-Speed Operational Amplifiers 22 Nov 2009
Application note Compensate Transimpedance Amplifiers Intuitively (Rev. A) 30 Mar 2005
Analog design journal Using a decompensated op amp for improved performance 11 Mar 2005
Application note Noise Analysis for High Speed Op Amps (Rev. A) 17 Jan 2005

Design & development

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

Evaluation board

OPA858DSGEVM — OPA858, 5.5 GHz GBP, Decompensated Transimpedance Amplifier with FET Input Evaluation Module

The OPA858DSGEVM is an evaluation module for the single OPA858 in the DSG (8-pin WSON) package. The OPA858DSGEVM is designed to quickly demonstrate the functionality and versatility of the amplifier. The EVM is ready to connect to power, signal source, and test instruments through the use of (...)
In stock
Limit: 1
Simulation model

OPA858 TINA-TI Spice Model (Rev. B)

SBOMAM4B.ZIP (14 KB) - TINA-TI Spice Model
Simulation model

OPA858 TINA-TI Reference Design (Rev. B)

SBOMAM5B.TSC (66 KB) - TINA-TI Reference Design
Simulation model

OPA858 PSpice Model

SBOMBK7.ZIP (49 KB) - PSpice Model
Simulation model

OPA858, THS4541 Flow Cytometry Example Front End PSpice Reference Design

SBOMBL1.ZIP (27 KB) - PSpice Model
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 (...)
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 (...)
Reference designs

TIDA-060025 — Reference design maximizing transimpedance bandwidth for LIDAR and time-of-flight (ToF) applications

This design demonstrates a high-speed optical front-end with a Time of Flight (ToF) distance measurement circuit using a fiber-optic transmission medium, which can be adapted to any type of ToF measurement such as through free space. This design features an industry-leading 2.5-V output linear (...)
Package Pins Download
WSON (DSG) 8 View options

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

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

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