Product details


Number of channels (#) 2 GBW (Typ) (MHz) 100 Total supply voltage (Max) (+5V=5, +/-5V=10) 5.5 Total supply voltage (Min) (+5V=5, +/-5V=10) 2.7 Vos (offset voltage @ 25 C) (Max) (mV) 8 Rail-to-rail In, Out Features Integrated TIA, Small Size BW @ Acl (MHz) 250 Operating temperature range (C) -40 to 85 open-in-new Find other Transimpedance amplifiers

Package | Pins | Size

VSON (DRC) 10 9 mm² 3 x 3 open-in-new Find other Transimpedance amplifiers


  • Wide Bandwidth: 250 MHz
  • High Slew Rate: 150 V/µs
  • Rail-to-Rail Input/Output (I/O)
  • Fast Settling
  • Low Input Bias Current: 3 pA
  • High Input Impedance: 1013 Ω || 2 pF
  • SPST Switch:
    • Low On-Resistance: 4 Ω
    • Low Charge Injection: 1 pC
    • Low Leakage Current: 10 pA
  • Flexible Configuration:
    • Transimpedance Gain
    • External Hold Capacitor
    • Post-Gain
  • Single Supply: +2.7 V to +5.5 V
  • Quiescent Current: 9.2 mA
  • Small Package: 3-mm × 3-mm SON-10
  • OPA1S2384: Internal Switch Active High
  • OPA1S2385: Internal Switch Active Low
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The OPA1S2384 and OPA1S2385 (OPA1S238x) combine high bandwidth, FET-input operational amplifiers with a fast SPST CMOS switch designed for applications that require the tracking and capturing of fast signals.

By providing a 250-MHz gain bandwidth product and rail-to-rail input/output swings in single-supply operation, the OPA1S238x is capable of wideband transimpedance gain and large output signal swing simultaneously. Low input bias current and voltage noise (6 nV/√Hz) make it possible to amplify extremely low-level input signals for maximum signal-to-noise ratio.

The characteristics of the OPA1S238x make this device ideally suited for use as a wideband photodiode amplifier.

In addition, the CMOS switch and subsequent buffer amplifier allow the OPA1S238x to be easily configured as a fast sample-and-hold circuit. The external hold capacitor and post-gain options make the OPA1S238x easily adoptable to a wide range of speed and accuracy requirements. Note that the OPA1S2384 closes the internal switch with a logic-high signal, and the OPA1S2385 closes the internal switch with a logic-low signal.

The OPA1S238x are optimized for low-voltage operation from as low as +2.7 V up to +5.5 V. These devices are specified for a temperature range of –40°C to +85°C.

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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 5
Type Title Date
* Datasheet 250-MHz, CMOS Transimpedance Amplifier (TIA) with Integrated Switch and Buffer datasheet (Rev. A) Jun. 24, 2013
White papers The Signal e-book: A compendium of blog posts on op amp design topics Mar. 28, 2017
Technical articles What you need to know about transimpedance amplifiers – part 1 May 06, 2016
User guides OPA1S2384EVM and OPA1S2385EVM User's Guide (Rev. A) Oct. 07, 2013
Application notes Compensate Transimpedance Amplifiers Intuitively (Rev. A) Mar. 30, 2005

Design & development

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

Hardware development

document-generic User guide

The OPA1S2384EVM (evaluation module) is intended to provide basic functional evaluation of the OPA1S2384, CMOS Transimpedance Amplifier (TIA) with Integrated Switch and Buffer.

  • Configurable for split-supply or single-supply operation
  • Easy access to pertinent nodes with test points, SMA connectors, and banana plugs
  • Default noninverting gain of 1 configuration for basic sample-and-hold mode evaluation
  • Component footprints allow for multiple gain, feedback, and filtering (...)

Design tools & simulation

SBOM837.ZIP (10 KB) - TINA-TI Spice Model
SBOM838.TSC (134 KB) - TINA-TI Reference Design
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 (...)
  • 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
  • (...)
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 (...)
document-generic User guide

CAD/CAE symbols

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VSON (DRC) 10 View options

Ordering & quality

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