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運算放大器 (op amps)
高速運算放大器 (GBW ≥ 50 MHz)

OPA817

現行

800-MHz、高精密度、單位增益穩定、FET 輸入運算放大器

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產品規格表

OPA817

現行
產品規格表 立即訂購

產品詳細資料

Architecture FET / CMOS Input, Voltage FB Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 6 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 12.6 GBW (typ) (MHz) 400 BW at Acl (MHz) 800 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 1000 Vn at flatband (typ) (nV√Hz) 4.5 Vn at 1 kHz (typ) (nV√Hz) 7.5 Iq per channel (typ) (mA) 23.5 Vos (offset voltage at 25°C) (max) (mV) 0.25 Rail-to-rail No Features Shutdown Rating Catalog Operating temperature range (°C) -40 to 105 CMRR (typ) (dB) 110 Input bias current (max) (pA) 20 Offset drift (typ) (µV/°C) 1 Iout (typ) (mA) 80 2nd harmonic (dBc) -100 3rd harmonic (dBc) -120 Frequency of harmonic distortion measurement (MHz) 1
Architecture FET / CMOS Input, Voltage FB Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 6 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 12.6 GBW (typ) (MHz) 400 BW at Acl (MHz) 800 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 1000 Vn at flatband (typ) (nV√Hz) 4.5 Vn at 1 kHz (typ) (nV√Hz) 7.5 Iq per channel (typ) (mA) 23.5 Vos (offset voltage at 25°C) (max) (mV) 0.25 Rail-to-rail No Features Shutdown Rating Catalog Operating temperature range (°C) -40 to 105 CMRR (typ) (dB) 110 Input bias current (max) (pA) 20 Offset drift (typ) (µV/°C) 1 Iout (typ) (mA) 80 2nd harmonic (dBc) -100 3rd harmonic (dBc) -120 Frequency of harmonic distortion measurement (MHz) 1
WSON (DTK) 8 9 mm² 3 x 3
  • Wide bandwidth:
    • Gain-bandwidth product: 400MHz
    • Bandwidth (G = 1V/V): 800MHz
    • Large-signal bandwidth (2VPP): 250MHz
    • Slew rate: 1000V/µs
  • High precision:
    • Input offset voltage: 250µV (maximum)
    • Input offset voltage drift: 3.5µV/°C (maximum)
  • Input voltage noise: 4.5nV/√Hz
  • Input bias current: 2pA
  • Low distortion (RL = 100Ω, VO = 2VPP):
    • HD2, HD3 at 10MHz: –86dBc, –100dBc
  • Supply range: 6V to 12.6V
  • Supply current: 23.5mA
  • Shutdown current: 55µA
  • Performance upgrade to OPA656
  • Wide bandwidth:
    • Gain-bandwidth product: 400MHz
    • Bandwidth (G = 1V/V): 800MHz
    • Large-signal bandwidth (2VPP): 250MHz
    • Slew rate: 1000V/µs
  • High precision:
    • Input offset voltage: 250µV (maximum)
    • Input offset voltage drift: 3.5µV/°C (maximum)
  • Input voltage noise: 4.5nV/√Hz
  • Input bias current: 2pA
  • Low distortion (RL = 100Ω, VO = 2VPP):
    • HD2, HD3 at 10MHz: –86dBc, –100dBc
  • Supply range: 6V to 12.6V
  • Supply current: 23.5mA
  • Shutdown current: 55µA
  • Performance upgrade to OPA656

The OPA817 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 that features a wide gain-bandwidth of 400MHz and a supply range from 6V to 12.6V. The fast slew rate of 1000V/µs allows a wide large-signal bandwidth and low distortion when used as high impedance buffer in high-speed digitizers, active probes and other test and measurement applications.

The OPA817 offers extremely low input offset voltage of ±250-µV 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 excellent choice as a wideband transimpedance amplifier in optical test and communication equipment, as well 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.

The OPA817 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 that features a wide gain-bandwidth of 400MHz and a supply range from 6V to 12.6V. The fast slew rate of 1000V/µs allows a wide large-signal bandwidth and low distortion when used as high impedance buffer in high-speed digitizers, active probes and other test and measurement applications.

The OPA817 offers extremely low input offset voltage of ±250-µV 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 excellent choice as a wideband transimpedance amplifier in optical test and communication equipment, as well 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.
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重要文件 類型 標題 格式選項 日期
* Data sheet OPA817 800MHz, High-Precision, Unity-Gain Stable, FET-Input Operational Amplifier datasheet (Rev. B) PDF | HTML 2024年 12月 4日
Product overview Pairing High-Speed JFET Amplifiers With Hi-Z DAQ Systems PDF | HTML 2024年 4月 8日
Application note Choosing an Amplifier for Wide Bandwidth, High-Impedance, Data Acquisition AFEs PDF | HTML 2023年 3月 2日
Application note Noise Analysis for High Speed Op Amps (Rev. A) 2005年 1月 17日

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開發板

DEM-OPA-DTK-EVM — 採用 8 針腳 SON (DTK 和 DRG) 封裝，適用於高速、頻寬運算放大器的評估模組

DEM-OPA-DTK-EVM 是一種展示固定裝置，可協助設計人員評估高速、寬頻運算放大器的運作和性能。此未組裝的空板與以 8 針腳 SON (DTK 和 DRG) 封裝供應之單通道放大器產品相容。電路板的設計旨在配合多種放大器配置，提供最大彈性及易用性。

使用指南: PDF | HTML
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OPA817 TINA-TI Reference Circuit

SBOMCB7.TSC (4760 KB) - TINA-TI Reference Design
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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 (...)
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