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Product details

Parameters

Acl, min spec gain (V/V) 1 Available channels S Operating temperature range (C) -40 to 85 Output current (Typ) (mA) 20 Rating Catalog open-in-new Find other Transconductance amplifiers

Package | Pins | Size

SOIC (D) 14 52 mm² 8.65 x 6 VSSOP (DGS) 10 9 mm² 3 x 3 open-in-new Find other Transconductance amplifiers

Features

  • PROPAGATION DELAY: 1.9ns
  • BANDWIDTH:
    OTA: 710MHz
    Comparator: 730MHz
  • LOW INPUT BIAS CURRENT: ±1µA
  • SAMPLE-AND-HOLD SWITCHING TRANSIENTS: ±5mV
  • SAMPLE-AND-HOLD FEEDTHROUGH REJECTION: 100dB
  • CHARGE INJECTION: 40fC
  • HOLD COMMAND DELAY TIME: 2.5ns
  • TTL/CMOS HOLD CONTROL
  • APPLICATIONS
    • BROADCAST/HDTV EQUIPMENT
    • TELECOMMUNICATIONS EQUIPMENT
    • HIGH-SPEED DATA ACQUISITION
    • CAD MONITORS/CCD IMAGE PROCESSING
    • NANOSECOND PULSE INTEGRATOR/PEAK DETECTOR
    • PULSE CODE MODULATOR/DEMODULATOR
    • COMPLETE VIDEO DC LEVEL RESTORATION
    • SAMPLE-AND-HOLD AMPLIFIER
    • SHC615 UPGRADE

All trademarks are the property of their respective owners.

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Description

The OPA615 is a complete subsystem for very fast and precise DC restoration, offset clamping, and low-frequency hum suppression of wideband amplifiers or buffers. Although it is designed to stabilize the performance of video signals, the circuit can also be used as a sample-and-hold amplifier, high-speed integrator, or peak detector for nanosecond pulses. The device features a wideband Operational Transconductance Amplifier (OTA) with a high-impedance cascode current source output and fast and precise sampling comparator that together set a new standard for high-speed applications. Both the OTA and the sampling comparator can be used as stand-alone circuits or combined to form a more complex signal processing stage. The self-biased, bipolar OTA can be viewed as an ideal voltage-controlled current source and is optimized for low input bias current. The sampling comparator has two identical high-impedance inputs and a current source output optimized for low output bias current and offset voltage; it can be controlled by a TTL-compatible switching stage within a few nanoseconds. The transconductance of the OTA and sampling comparator can be adjusted by an external resistor, allowing bandwidth, quiescent current, and gain trade-offs to be optimized.

The OPA615 is available in both an SO-14 surface-mount and an MSOP-10 package.

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Technical documentation

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No results found. Please clear your search and try again. View all 9
Type Title Date
* Datasheet Wide Bandwidth, DC Restoration Circuit datasheet (Rev. E) Sep. 28, 2009
Technical articles High-current pulsed-source needed Aug. 29, 2013
Application notes Demystifying the Operational Transconductance Amplifier (Rev. A) Apr. 16, 2013
Technical articles Correcting DC errors in high-speed amplifier circuits Feb. 22, 2013
Application notes 1Q 2012 Issue Analog Applications Journal Jan. 31, 2012
Application notes Measuring op-amp settling time by using sample-and-hold technique Jan. 31, 2012
User guides DEM-OPA-MSOP-1A User's Guide (Rev. A) Dec. 03, 2008
User guides DEM-OPA-SO-1C User's Guide Aug. 01, 2006
Application notes Noise Analysis for High Speed Op Amps (Rev. A) Jan. 17, 2005

Design & development

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

Hardware development

EVALUATION BOARDS Download
DEM-OPA-MSOP-1A
DEM-OPA-MSOP-1A
document-generic User guide
$5.00
Description

<p>The <b>DEM-OPA-MSOP-1A</b> demonstration fixture helps designers evaluate the operation and performance of TI's single, wideband DC restoration circuit. This unpopulated PC board (PCB) is compatible with the OPA615 offered in the 10-lead MSOP (DGS) package.</p>

EVALUATION BOARDS Download
DEM-OPA-SO-1C
DEM-OPA-SO-1C
document-generic User guide
$5.00
Description

<p>The <b>DEM-OPA-SO-1C</b> demonstration fixture helps designers evaluate the operation and performance of TI's single, wideband DC restoration circuit. This unpopulated PC board (PCB) is compatible with the OPA615 offered in the 14-lead SOIC (D) package.</p>

<p>For more information on this (...)

Features
  • Unpopulated Circuit Board

Design tools & simulation

SIMULATION MODELS Download
SBOC223.ZIP (5 KB) - PSpice 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

Reference designs

REFERENCE DESIGNS Download
Versatile Sample & Hold Circuit for Industrial and T&M applications
TIDA-00003 Using the OPA615 high bandwidth, DC restoration circuit, this reference design provides a high bandwidth, high precision sample & hold circuit for various applications. Supported by a full scale design guide, the circuit can be easily adjusted for a given application.
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
SOIC (D) 14 View options
VSSOP (DGS) 10 View options

Ordering & quality

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