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放大器
運算放大器 (op amps)
精密運算放大器 (Vos < 1mV)

OPA197

現行

單路 36-V 精密軌對軌輸入輸出、低偏移電壓運算放大器

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產品規格表

OPA197

現行
產品規格表 立即訂購

產品詳細資料

Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 36 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 4.5 Vos (offset voltage at 25°C) (max) (mV) 0.1 Offset drift (typ) (µV/°C) 0.5 Input bias current (max) (pA) 20 GBW (typ) (MHz) 10 Features EMI Hardened, High Cload Drive Slew rate (typ) (V/µs) 20 Rail-to-rail In, Out Iq per channel (typ) (mA) 1 Vn at 1 kHz (typ) (nV√Hz) 5.5 CMRR (typ) (dB) 140 Rating Catalog Operating temperature range (°C) -40 to 125 Iout (typ) (A) 0.065 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) -0.1 Input common mode headroom (to positive supply) (typ) (V) 0.1 Output swing headroom (to negative supply) (typ) (V) 0.095 Output swing headroom (to positive supply) (typ) (V) -0.095 THD + N at 1 kHz (typ) (%) 0.00008
Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 36 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 4.5 Vos (offset voltage at 25°C) (max) (mV) 0.1 Offset drift (typ) (µV/°C) 0.5 Input bias current (max) (pA) 20 GBW (typ) (MHz) 10 Features EMI Hardened, High Cload Drive Slew rate (typ) (V/µs) 20 Rail-to-rail In, Out Iq per channel (typ) (mA) 1 Vn at 1 kHz (typ) (nV√Hz) 5.5 CMRR (typ) (dB) 140 Rating Catalog Operating temperature range (°C) -40 to 125 Iout (typ) (A) 0.065 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) -0.1 Input common mode headroom (to positive supply) (typ) (V) 0.1 Output swing headroom (to negative supply) (typ) (V) 0.095 Output swing headroom (to positive supply) (typ) (V) -0.095 THD + N at 1 kHz (typ) (%) 0.00008
VSSOP (DGK) 8 14.7 mm² (3 mm × 4.9 mm) SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm) SOT-23 (DBV) 5 8.12 mm² (2.9 mm × 2.8 mm)
  • Low Offset Voltage: ±100 µV (Maximum)
  • Low Offset Voltage Drift: ±2.5 µV/°C (Maximum)
  • Low Noise: 5.5 nV/√Hz at 1 kHz
  • High Common-Mode Rejection: 120 dB (Minimum)
  • Low Bias Current: ±5 pA (Typical)
  • Rail-to-Rail Input and Output
  • Wide Bandwidth: 10-MHz GBW
  • High Slew Rate: 20 V/µs
  • Low Quiescent Current: 1 mA per Amplifier (Typical)
  • Wide Supply: ±2.25 V to ±18 V, +4.5 V to +36 V
  • EMI- and RFI-Filtered Inputs
  • Differential Input Voltage Range to Supply Rail
  • High Capacitive Load Drive Capability: 1 nF
  • Industry Standard Packages:
    • Single in SOIC-8, SOT-5, and VSSOP-8
    • Dual in SOIC-8 and VSSOP-8
    • Quad in SOIC-14 and TSSOP-14
  • Low Offset Voltage: ±100 µV (Maximum)
  • Low Offset Voltage Drift: ±2.5 µV/°C (Maximum)
  • Low Noise: 5.5 nV/√Hz at 1 kHz
  • High Common-Mode Rejection: 120 dB (Minimum)
  • Low Bias Current: ±5 pA (Typical)
  • Rail-to-Rail Input and Output
  • Wide Bandwidth: 10-MHz GBW
  • High Slew Rate: 20 V/µs
  • Low Quiescent Current: 1 mA per Amplifier (Typical)
  • Wide Supply: ±2.25 V to ±18 V, +4.5 V to +36 V
  • EMI- and RFI-Filtered Inputs
  • Differential Input Voltage Range to Supply Rail
  • High Capacitive Load Drive Capability: 1 nF
  • Industry Standard Packages:
    • Single in SOIC-8, SOT-5, and VSSOP-8
    • Dual in SOIC-8 and VSSOP-8
    • Quad in SOIC-14 and TSSOP-14

The OPAx197 family (OPA197, OPA2197, and OPA4197) is a new generation of 36-V operational amplifiers.

These devices offer outstanding dc precision and ac performance, including rail-to-rail input/output, low offset (±25 µV, typical), low offset drift (±0.25 µV/°C, typ), and 10-MHz bandwidth.

Unique features such as differential input-voltage range to the supply rail, high output current (±65 mA), high capacitive load drive of up to 1 nF, and high slew rate (20 V/µs) make the OPA197 a robust, high-performance operational amplifier for high-voltage, industrial applications.

The OPA197 family of op amps is available in standard packages and is specified from –40°C to +125°C.

The OPAx197 family (OPA197, OPA2197, and OPA4197) is a new generation of 36-V operational amplifiers.

These devices offer outstanding dc precision and ac performance, including rail-to-rail input/output, low offset (±25 µV, typical), low offset drift (±0.25 µV/°C, typ), and 10-MHz bandwidth.

Unique features such as differential input-voltage range to the supply rail, high output current (±65 mA), high capacitive load drive of up to 1 nF, and high slew rate (20 V/µs) make the OPA197 a robust, high-performance operational amplifier for high-voltage, industrial applications.

The OPA197 family of op amps is available in standard packages and is specified from –40°C to +125°C.
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技術文件

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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 OPAx197 36-V, Precision, Rail-to-Rail Input/Output, Low Offset Voltage, Operational Amplifiers datasheet (Rev. C) PDF | HTML 2018/3/9
Application brief Offset Correction Methods: Laser Trim, e-Trim, and Chopper (Rev. D) PDF | HTML 2024/12/5
Circuit design Full-wave rectifier circuit (Rev. B) PDF | HTML 2024/10/15
Circuit design High-input impedance, true differential, AFE attenuator circuit for SAR ADCs (Rev. B) PDF | HTML 2024/9/25
應用說明 Analysis of Improved Howland Current Pump Configurations (Rev. A) PDF | HTML 2023/2/9
Application brief MUX-Friendly, Precision Operational Amplifiers (Rev. C) PDF | HTML 2022/2/8
Circuit design Voltage-to-current (V-I) converter circuit with a Darlington transistor PDF | HTML 2021/5/14
Application brief Supporting High Voltage Common Mode Using Difference Amplifier PDF | HTML 2021/3/8
Circuit design Inverting op amp with inverting positive reference voltage circuit (Rev. A) 2019/2/4
Application brief Multichannel Analog Input Modules for PLC Equipment 2019/1/4
電子書 The Signal e-book: A compendium of blog posts on op amp design topics PDF | HTML 2017/3/28
電子書 Analog Engineer’s Pocket Reference Guide Fifth Edition (Rev. D) PDF | HTML 2014/9/30

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

AMP-PDK-EVM — 放大器性能開發套件評估模組

放大器性能開發套件 (PDK) 是一款評估模組 (EVM) 套件，可測試通用運算放大器 (op amp) 參數，並與大多數運算放大器和比較器相容。EVM 套件提供主板和多個插槽式子卡選項，可滿足封裝需求，使工程師能夠快速評估和驗證裝置性能。

AMP-PDK-EVM 套件支援五種最熱門的業界標準封裝，包括：

  • D (SOIC-8 和 SOIC-14)
  • PW (TSSOP-14)
  • DGK (VSSOP-8)
  • DBV (SOT23-5 和 SOT23-6)
  • DCK (SC70-5 和 SC70-6)
使用指南: PDF | HTML
支援產品和硬體
模擬型號

OPAx197 PSpice Model (Rev. D)

SBOMA34D.ZIP (30 KB) - PSpice 模型
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模擬型號

OPAx197 TINA-TI Reference Design (Rev. C)

SBOMA36C (320 KB) - TINA-TI 參考設計
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模擬型號

OPAx197 TINA-TI Spice Model (Rev. C)

SBOMA35C.ZIP (10 KB) - TINA-TI Spice 模型
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計算工具

ANALOG-ENGINEER-CALC — PC software analog engineer's calculator

類比工程師的計算機旨在加速類比電路設計工程師定期使用的許多重複計算。此基於 PC 的工具提供圖形介面，列出各種常見計算，從使用回饋電阻器設定運算放大器增益到選擇適當的電路設計元件以穩定類比數位轉換器 (ADC) 驅動緩衝電路。

除了作為獨立工具使用外，此計算機還與類比工程師口袋參考中描述的概念相得益彰。

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計算工具

OPAMP-NOISECALC — Noise Calculator

This folder contains three tools to help in understandning and managing noise in cicuits. The included tools are:

  • A noise generator tool - This is a Lab View 4-Run Time executable that generates Gaussian white noise, uniform white noise, 1/f noise, short noise, and 60Hz line noise. Temporal data, (...)
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設計工具

CIRCUIT060008 — 全波整流器電路

此絕對值電路可將交流電 (AC) 訊號轉為單極性訊號。此電路在高達 50kHz 的頻率下，針對 ±10-V 輸入訊號，以及在高達 1kHz 的頻率下，針對小至 ±25mV 的訊號，以有限的失真運作。
支援產品和硬體
設計工具

CIRCUIT060047 — 具有達靈頓對電路的高壓側 V-I

這款高壓側電壓轉電流 (V-I) 轉換器可將適當調節的電流提供至負載 R4。電路接受 0 V 到 10 V 的輸入電壓，並將其轉換為 0 A 到 5 A 的輸出電流。電流透過將低壓側電流感測電阻器的電壓傳送回運算放大器來調節。輸出達靈頓對可獲得比使用單一分離式電晶體更高的電流增益。
支援產品和硬體
設計工具

CIRCUIT060062 — 具有反相正參考電壓電路的反相運算放大器

此設計使用具反相正參考的反相放大器，將 –5 V 至 –1 V 輸入訊號轉爲 3.3 V 至 0.05 V 輸出電壓。此電路可將負感測器輸出電壓轉為可用的 ADC 輸入電壓範圍。
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設計工具

SBOC507 — Simulation for Full-Wave Rectifier

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設計工具

SBOC511 — Simulation for Inverting Op Amp With Inverting Positive Reference

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封裝 針腳 CAD 符號、佔位空間與 3D 模型
VSSOP (DGK) 8 Ultra Librarian
SOIC (D) 8 Ultra Librarian
SOT-23 (DBV) 5 Ultra Librarian
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