OPA4187

現行

零漂移 (10µV、0.001µV/C˚)、可搭配多工器使用、低功率、RRO、CMOS 四精度運算放大器 (四通道)

產品詳細資料

Number of channels 4 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) 0.01 Offset drift (typ) (µV/°C) 0.001 Input bias current (max) (pA) 350 GBW (typ) (MHz) 0.55 Features EMI Hardened, Zero Drift Slew rate (typ) (V/µs) 0.2 Rail-to-rail In to V-, Out Iq per channel (typ) (mA) 0.1 Vn at 1 kHz (typ) (nV√Hz) 20 CMRR (typ) (dB) 145 Rating Catalog Operating temperature range (°C) -40 to 125 Iout (typ) (A) 0.02 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) -0.1 Input common mode headroom (to positive supply) (typ) (V) -2 Output swing headroom (to negative supply) (typ) (V) 0.015 Output swing headroom (to positive supply) (typ) (V) -0.015 THD + N at 1 kHz (typ) (%) 0.035
Number of channels 4 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) 0.01 Offset drift (typ) (µV/°C) 0.001 Input bias current (max) (pA) 350 GBW (typ) (MHz) 0.55 Features EMI Hardened, Zero Drift Slew rate (typ) (V/µs) 0.2 Rail-to-rail In to V-, Out Iq per channel (typ) (mA) 0.1 Vn at 1 kHz (typ) (nV√Hz) 20 CMRR (typ) (dB) 145 Rating Catalog Operating temperature range (°C) -40 to 125 Iout (typ) (A) 0.02 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) -0.1 Input common mode headroom (to positive supply) (typ) (V) -2 Output swing headroom (to negative supply) (typ) (V) 0.015 Output swing headroom (to positive supply) (typ) (V) -0.015 THD + N at 1 kHz (typ) (%) 0.035
WQFN (RUM) 16 16 mm² (4 mm × 4 mm) TSSOP (PW) 14 32 mm² (5 mm × 6.4 mm) SOIC (D) 14 51.9 mm² (8.65 mm × 6 mm)
  • Low offset voltage: 10 µV (maximum)
  • Zero drift: 0.001 µV/°C
  • Low noise: 15 nV/√Hz
  • PSRR: 160 dB
  • CMRR: 140 dB
  • AOL: 160 dB
  • Quiescent Current: 100 µA
  • Wide supply voltage: ±2.25 V to ±18 V
  • Rail-to-rail output operation
  • Input includes negative rail
  • Low bias current: 100 pA (typical)
  • EMI filtered inputs
  • Microsize packages
  • Low offset voltage: 10 µV (maximum)
  • Zero drift: 0.001 µV/°C
  • Low noise: 15 nV/√Hz
  • PSRR: 160 dB
  • CMRR: 140 dB
  • AOL: 160 dB
  • Quiescent Current: 100 µA
  • Wide supply voltage: ±2.25 V to ±18 V
  • Rail-to-rail output operation
  • Input includes negative rail
  • Low bias current: 100 pA (typical)
  • EMI filtered inputs
  • Microsize packages

The OPAx187 series operational amplifiers use auto-zeroing techniques to simultaneously provide low-offset voltage (1 µV), and near zero drift over time and temperature. These miniature, high-precision, low-quiescent current amplifiers offer high-input impedance and rail-to-rail output swing within 5 mV of the rails into high-impedance loads. The input common-mode range includes the negative rail. Either single or dual supplies can be used in the range of 4.5 V to 36 V (±2.25 V to ±18 V).

The single version OPAx187 device is available in microsize 8-pin VSSOP, 5-pin SOT-23, and 8-pin SOIC packages. The dual version is offered in 8-pin VSSOP and 8-pin SOIC packages. The quad version is offered in 14-pin SOIC, 14-pin TSSOP, and 16-pin WQFN packages. All versions are specified for operation from –40°C to +125°C.

 

The OPAx187 series operational amplifiers use auto-zeroing techniques to simultaneously provide low-offset voltage (1 µV), and near zero drift over time and temperature. These miniature, high-precision, low-quiescent current amplifiers offer high-input impedance and rail-to-rail output swing within 5 mV of the rails into high-impedance loads. The input common-mode range includes the negative rail. Either single or dual supplies can be used in the range of 4.5 V to 36 V (±2.25 V to ±18 V).

The single version OPAx187 device is available in microsize 8-pin VSSOP, 5-pin SOT-23, and 8-pin SOIC packages. The dual version is offered in 8-pin VSSOP and 8-pin SOIC packages. The quad version is offered in 14-pin SOIC, 14-pin TSSOP, and 16-pin WQFN packages. All versions are specified for operation from –40°C to +125°C.

 

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OPA4186 現行 具有軌至軌輸入和輸出的四路 24-V 低功耗 (90 μA) 5-μV 偏移零漂移運算放大器 Lower power-supply voltage (24 V) and lower power consumption (90 µA) with rail-to-rail input and output

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 OPAx187 0.001-µV/°C Drift, Low Power, Rail-to-Rail Output 36-V Operational Amplifiers Zero-Drift Series datasheet (Rev. E) PDF | HTML 2020/5/21
Application brief Offset Correction Methods: Laser Trim, e-Trim, and Chopper (Rev. D) PDF | HTML 2024/12/5
Application brief Zero-Drift Amplifiers: Features and Benefits (Rev. C) 2021/1/28
Application brief Minimize Errors in Weigh-Scales With Zero-Drift, EMI-Hardened, Precision Amps (Rev. A) PDF | HTML 2020/12/8
Application brief EMI-Hardened Op Amps Reduce Errors in EKGs (Rev. A) 2019/8/21
Application brief Green-Williams-Lis: Improved Op Amp Spice Model 2019/1/28
Application brief How to Properly Configure Unused Operational Amplifiers (Rev. A) 2018/9/21

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

OPAx187 PSpice Model (Rev. C)

SBOMAB6C.ZIP (32 KB) - PSpice 模型
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模擬型號

OPAx187 TINA-TI Reference Design (Rev. C)

SBOMAB5C (331 KB) - TINA-TI 參考設計
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模擬型號

OPAx187 TINA-TI Spice Model (Rev. C)

SBOMAB4C.ZIP (11 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。

支援產品和硬體
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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參考設計

TIDA-010249 — 四通道同步震動感測器介面參考設計

此參考設計闡明同步四通道寬頻高解析度介面的原理、設計與測試。主要目標為震動感測應用,但此設計也可套用至任何需要寬頻的應用項目,例如功率因數量測中三相電壓及電流監控。
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參考設計

TIDA-010962 — 自動測試設備 (ATE) 80V 離散式浮動 VI 參考設計

此參考設計展現四象限離散式浮動電壓與電流 (VI) 設計。電壓輸出支援 ±40V 和 0V 至 80V 範圍,並提供 500mA、10mA 和 10μA 三種電流範圍。此設計可在強制電壓 (FV)、強制電流 (FI)、緩衝器及具有類比回饋迴路的 Gang 模式下運作。憑藉 20 位元強制數位轉類比轉換器 (DAC) 和 18 位元、2 通道類比轉數位轉換器 (ADC) 以及精密訊號鏈,該參考設計可實現校準後控制與測量具備 0.01% 準確度。

支援產品和硬體
封裝 針腳 CAD 符號、佔位空間與 3D 模型
WQFN (RUM) 16 Ultra Librarian
TSSOP (PW) 14 Ultra Librarian
SOIC (D) 14 Ultra Librarian

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