Product details

Number of channels (#) 2 GBW (Typ) (MHz) 900 Total supply voltage (Max) (+5V=5, +/-5V=10) 5.5 Total supply voltage (Min) (+5V=5, +/-5V=10) 3.3 Vos (offset voltage @ 25 C) (Max) (mV) 8 Rail-to-rail No Features Shutdown BW @ Acl (MHz) 1800 Operating temperature range (C) -40 to 125
Number of channels (#) 2 GBW (Typ) (MHz) 900 Total supply voltage (Max) (+5V=5, +/-5V=10) 5.5 Total supply voltage (Min) (+5V=5, +/-5V=10) 3.3 Vos (offset voltage @ 25 C) (Max) (mV) 8 Rail-to-rail No Features Shutdown BW @ Acl (MHz) 1800 Operating temperature range (C) -40 to 125
WQFN (RTW) 24
  • Gain bandwidth product: 900 MHz
  • Internal switches for programmable gain
  • High impedance FET inputs
  • Input voltage noise: 2.2 nV/√Hz
  • Slew rate: 350 V/µs
  • Supply voltage range: 3.3 V to 5.25 V
  • Quiescent current: 22 mA/channel
  • Power down mode IQ: 75 µA
  • Temperature range: -40 °C to 125 °C
  • Gain bandwidth product: 900 MHz
  • Internal switches for programmable gain
  • High impedance FET inputs
  • Input voltage noise: 2.2 nV/√Hz
  • Slew rate: 350 V/µs
  • Supply voltage range: 3.3 V to 5.25 V
  • Quiescent current: 22 mA/channel
  • Power down mode IQ: 75 µA
  • Temperature range: -40 °C to 125 °C

The OPA3S2859 is a wideband, low-noise programmable gain amplifier with CMOS inputs for wideband transimpedance and voltage amplifier applications. When the device is configured as a transimpedence amplifier (TIA), the 0.9-GHz gain bandwidth product (GBWP) enables high closed-loop bandwidths in low-capacitance photodiode (PD) applications.

The three internal switched feedback paths along with an optional parallel non-switched feedback path allows for up to four selectable gain configurations. The internal switches minimize parasitic contributions to increase performance compared to systems that use discrete external switches. Each switch is optimized for feedback resistor values ranging from < 1 kΩ to  > 100 kΩ for wide dynamic range applications. The selected switch path is controlled for both channels using a  2-wire parallel interface. For each channel selected, the gain path can also be held constant by exerting the latch pin, which subsequently disables switch control for the selected channel and prevents the channel from changing gain.

.

.

.

The OPA3S2859 is a wideband, low-noise programmable gain amplifier with CMOS inputs for wideband transimpedance and voltage amplifier applications. When the device is configured as a transimpedence amplifier (TIA), the 0.9-GHz gain bandwidth product (GBWP) enables high closed-loop bandwidths in low-capacitance photodiode (PD) applications.

The three internal switched feedback paths along with an optional parallel non-switched feedback path allows for up to four selectable gain configurations. The internal switches minimize parasitic contributions to increase performance compared to systems that use discrete external switches. Each switch is optimized for feedback resistor values ranging from < 1 kΩ to  > 100 kΩ for wide dynamic range applications. The selected switch path is controlled for both channels using a  2-wire parallel interface. For each channel selected, the gain path can also be held constant by exerting the latch pin, which subsequently disables switch control for the selected channel and prevents the channel from changing gain.

.

.

.

Download

Similar products you might be interested in

open-in-new Compare products
Pin-for-pin with same functionality to the compared device.
NEW OPA3S2859-EP ACTIVE Enhanced product, dual-channel, 900-MHz, 2.2-nV/√Hz, programmable gain transimpedance amplifier An enhanced-product version of the OPA3S2859 with extended temperature range
Similar functionality to the compared device.
OPA859 ACTIVE 1.8 GHz Unity-Gain Bandwidth, 3.3 nV/√Hz, FET Input Amplifier A dual-channel amplifier with similar FET input and 900-MHz bandwidth that also features integrated switches for configurable gain
OPA859-Q1 ACTIVE Automotive 1.8-GHz unity-gain bandwidth, 3.3-nV/√Hz, FET input amplifier A dual-channel amplifier with similar FET input and 900-MHz bandwidth that also features integrated switches for configurable gain

Technical documentation

star = Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 3
Type Title Date
* Data sheet OPA3S2859 Dual-Channel, 900-MHz, 2.2-nV/√Hz, Programmable Gain Transimpedance Amplifier datasheet PDF | HTML 01 Apr 2022
EVM User's guide OPA3S2859RTW Evaluation Module User's Guide PDF | HTML 21 Apr 2021
Technical article What you need to know about transimpedance amplifiers – part 1 06 May 2016

Design & development

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

Evaluation board

OPA3S2859RTWEVM — Evaluation module for OPA3S2859-EP 900-MHz, 2.5-nV/√Hz programmable gain transimpedance amplifier

The OPA3S2859RTWEVM evaluation module (EVM) is designed to easily demonstrate the functionality and versatility of the amplifier. The EVM can be configured for single or split supplies and footprints for SMA connectors on all analog inputs and outputs. The layout is optimized to reduce (...)
Not available on TI.com
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 (...)
Package Pins Download
WQFN (RTW) 24 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