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Texas Instruments OPA817 High Precision Operational Amplifier

Texas Instruments OPA817 High Precision Operational Amplifier (Op Amp) is a unity-gain stable voltage-feedback operational amplifier for high-speed, high-precision, and wide-dynamic range applications. The OPA817 has a low-noise junction gate field-effect transistor (JFET) input stage with a wide gain bandwidth of 400MHz and a supply range from 6V to 12.6V. The fast slew rate of 1000V/µs allows a low distortion and wide large-signal bandwidth when used as a high-impedance buffer in high-speed digitizers, active probes, and other test and measurement applications.

The Texas Instruments OPA817 offers an extremely low input offset voltage of ±250µV and offset voltage drift of ±3.5µV/°C. The combination of pico-amperes of input bias current and low input voltage noise (4.5nV/√Hz) makes the OPA817 an ideal wideband transimpedance amplifier in optical test and communication equipment as medical and scientific instrumentation. The OPA817 is available in an 8-lead WSON package with an exposed thermal pad for heat dissipation. This device is specified to operate over the industrial temperature range of –40°C to +105°C.

Features

  • Wide bandwidth
    • 400MHz gain-bandwidth product
    • 800MHz bandwidth (G = 1V/V)
    • 250MHz large-signal bandwidth (2VPP)
    • 1000V/µs slew rate
  • High precision
    • 250µV (maximum) input offset voltage
    • 3.5µV/°C (maximum) input offset voltage drift
  • 4.5nV/√Hz input voltage noise
  • 2pA input bias current
  • Low distortion (RL = 100Ω, VO = 2VPP)
    • HD2, HD3 at 10MHz (–86dBc, –100dBc)
  • 6V to 12.6V supply range
  • 23.5mA supply current
  • 55µA shutdown current
  • Performance upgrade to OPA656

Applications

  • High-speed data acquisition (DAQ)
  • Active probes
  • Oscilloscopes
  • Wideband transimpedance amplifiers (TIAs)
  • Wafer scanning equipment
  • Optical communication modules
  • Optical time-domain reflectometry (OTDR)
  • Test and measurement front-ends
  • Medical and chemical analyzers

High Input Impedance Digitizer Front-End

Application Circuit Diagram - Texas Instruments OPA817 High Precision Operational Amplifier

Related Development Tool

Texas Instruments DEM-OPA-DTK-EVM Evaluation Module

A demonstration fixture facilitating designers to evaluate the operation and performance of op amps.

Learn More關於Texas Instruments DEM-OPA-DTK-EVM Evaluation Module View Products與Texas Instruments DEM-OPA-DTK-EVM Evaluation Module相關
發佈日期: 2023-01-27 | 更新日期: 2023-02-09