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Product details

Parameters

Architecture Voltage FB Number of channels (#) 1 Total supply voltage (Min) (+5V=5, +/-5V=10) 7 Total supply voltage (Max) (+5V=5, +/-5V=10) 12 GBW (Typ) (MHz) 200 BW @ Acl (MHz) 350 Acl, min spec gain (V/V) 1 Slew rate (Typ) (V/us) 400 Vn at flatband (Typ) (nV/rtHz) 2.7 Vn at 1 kHz (Typ) (nV/rtHz) 2.6 Iq per channel (Typ) (mA) 20.2 Vos (offset voltage @ 25 C) (Max) (mV) 1.2 Rail-to-rail No Rating Catalog Operating temperature range (C) -40 to 85 CMRR (Typ) (dB) 95 Input bias current (Max) (pA) 35000000 Offset drift (Typ) (uV/C) 4 Output current (Typ) (mA) 100 2nd harmonic (dBc) 80 3rd harmonic (dBc) 97 @ MHz 5 open-in-new Find other High-speed op amps (GBW>=50MHz)

Package | Pins | Size

SOIC (D) 8 19 mm² 3.91 x 4.9 SOT-23 (DBV) 5 5 mm² 2.9 x 1.6 open-in-new Find other High-speed op amps (GBW>=50MHz)

Features

  • UNITY-GAIN BANDWIDTH: 400MHz
  • GAIN-BANDWIDTH PRODUCT: 200MHz
  • LOW INPUT VOLTAGE NOISE: 2.6nV/√Hz
  • VERY LOW DISTORTION: –93dBc (5MHz)
  • HIGH OPEN-LOOP GAIN: 110dB
  • FAST 12-BIT SETTLING: 22ns (0.01%)
  • LOW DC VOLTAGE OFFSET: 300µV Typical
  • PROFESSIONAL LEVEL DIFF GAIN/PHASE ERROR: 0.003%/0.008°
open-in-new Find other High-speed op amps (GBW>=50MHz)

Description

The OPA842 provides a level of speed and dynamic range previously unattainable in a monolithic op amp. Using unity-gain stable, voltage-feedback architecture with two internal gain stages, the OPA842 achieves exceptionally low harmonic distortion over a wide frequency range. The classic differential input provides all the familiar benefits of precision op amps, such as bias current cancellation and very low inverting current noise compared with wideband current differential gain/phase performance, low-voltage noise, and high output current drive make the OPA842 ideal for most high dynamic range applications.

Unity-gain stability makes the OPA842 particularly suitable for low-gain differential amplifiers, transimpedance amplifiers, gain of +2 video line drivers, wideband integrators, and low-distortion analog-to-digital converter (ADC) buffers. Where higher gain or even lower harmonic distortion is required, consider the OPA843—a higher-gain bandwidth and lower-noise version of the OPA842.

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

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
$5.00
Description

The DEM-OPA-SO-1A demonstration fixture helps designers evaluate the operation and performance of TI's High Speed, Wide Bandwidth Operational Amplifiers. This unpopulated PC board is compatible with products offered in the 8-lead SOIC (D) package.

EVALUATION BOARDS Download
document-generic User guide
$5.00
Description

The DEM-OPA-SOT-1A is a demonstration fixture that helps designers evaluate the operation and performance of TI's High Speed, Wide Bandwidth Operational Amplifiers. This unpopulated PC board is compatible with products offered in the SOT(DBV) package.

Design tools & simulation

SIMULATION MODELS Download
SBOC007.ZIP (1 KB) - PSpice Model
SIMULATION MODELS Download
SBOC095A.TSC (55 KB) - TINA-TI Reference Design
SIMULATION MODELS Download
SBOM177.TSM (4 KB) - TINA-TI Spice Model
SIMULATION TOOLS 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 (...)
document-generic User guide
CALCULATION TOOLS 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 TOOLS Download
CALCULATION TOOLS Download
Features

The spreadsheet comprises five related worksheets:

  1. MFBdesign: This worksheet allows the user to select a part number, set target filter specifications, and design the component values. This design sequence has been shown in the examples used in this application note.
  2. PartSelection: This worksheet (...)
CALCULATION TOOLS 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.

(...)

CAD/CAE symbols

Package Pins Download
SOIC (D) 8 View options
SOT-23 (DBV) 5 View options

Ordering & quality

Support & training

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