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INA141

現行

精密度、低功耗、G = 10, 100 儀表放大器

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產品規格表

INA141

現行
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產品詳細資料

Number of channels 1 Vs (max) (V) 36 Vs (min) (V) 4.5 Input offset (±) (max) (µV) 50 Voltage gain (min) (V/V) 10 Voltage gain (max) (V/V) 100 Noise at 1 kHz (typ) (nV√Hz) 8 Features Overvoltage protection CMRR (min) (dB) 117 Input offset drift (±) (max) (µV/°C) 0.5 Input bias current (±) (max) (nA) 5 Iq (typ) (mA) 0.75 Bandwidth at min gain (typ) (MHz) 1 Gain error (±) (max) (%) 0.075 Operating temperature range (°C) -40 to 85 Rating Catalog Type Fixed Gain Gain nonlinearity (±) (max) (%) 0.002 Output swing headroom (to negative supply) (typ) (V) 0.9 Output swing headroom (to positive supply) (typ) (V) -0.9 Input common mode headroom (to negative supply) (typ) (V) 1.7 Input common mode headroom (to positive supply) (typ) (V) -1.4 Noise at 0.1 Hz to 10 Hz (typ) (µVPP) 0.2
Number of channels 1 Vs (max) (V) 36 Vs (min) (V) 4.5 Input offset (±) (max) (µV) 50 Voltage gain (min) (V/V) 10 Voltage gain (max) (V/V) 100 Noise at 1 kHz (typ) (nV√Hz) 8 Features Overvoltage protection CMRR (min) (dB) 117 Input offset drift (±) (max) (µV/°C) 0.5 Input bias current (±) (max) (nA) 5 Iq (typ) (mA) 0.75 Bandwidth at min gain (typ) (MHz) 1 Gain error (±) (max) (%) 0.075 Operating temperature range (°C) -40 to 85 Rating Catalog Type Fixed Gain Gain nonlinearity (±) (max) (%) 0.002 Output swing headroom (to negative supply) (typ) (V) 0.9 Output swing headroom (to positive supply) (typ) (V) -0.9 Input common mode headroom (to negative supply) (typ) (V) 1.7 Input common mode headroom (to positive supply) (typ) (V) -1.4 Noise at 0.1 Hz to 10 Hz (typ) (µVPP) 0.2
SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm)
  • Low offset voltage:
    • 50µV maximum at G = 100V/V
  • Low drift:
    • 0.5µV/°C maximum at G = 100V/V
  • Accurate gain:
    • ±0.05% at G = 10V/V
  • Low input bias current:
    • 5nA, maximum
  • High CMR:
    • 117dB, minimum
  • Inputs protected to ±40V
  • Wide supply range: ±2.25V to ±18 V
  • Low quiescent current: 750µA
  • Low offset voltage:
    • 50µV maximum at G = 100V/V
  • Low drift:
    • 0.5µV/°C maximum at G = 100V/V
  • Accurate gain:
    • ±0.05% at G = 10V/V
  • Low input bias current:
    • 5nA, maximum
  • High CMR:
    • 117dB, minimum
  • Inputs protected to ±40V
  • Wide supply range: ±2.25V to ±18 V
  • Low quiescent current: 750µA

The INA141 is a low power, general-purpose instrumentation amplifier offering excellent accuracy. The versatile three-op-amp design and small size make this device an excellent choice for a wide range of applications. Current-feedback input circuitry provides wide bandwidth even at high gain (200 kHz at G = 100 V/V).

Simple pin connections set an accurate gain of 10 V/V or 100 V/V without external resistors. Internal input protection can withstand up to ±40 V without damage.

The INA141 is laser trimmed for very low offset voltage (50 µV), drift (0.5 µV/°C) and high common-mode rejection (117 dB at G = 100 V/V). The device operates with power supplies as low as ±2.25 V, and quiescent current is only 750 µA.

The INA141 is available in an 8‑pin SOIC package, and is specified for the −40°C to +85°C temperature range.

The INA141 is a low power, general-purpose instrumentation amplifier offering excellent accuracy. The versatile three-op-amp design and small size make this device an excellent choice for a wide range of applications. Current-feedback input circuitry provides wide bandwidth even at high gain (200 kHz at G = 100 V/V).

Simple pin connections set an accurate gain of 10 V/V or 100 V/V without external resistors. Internal input protection can withstand up to ±40 V without damage.

The INA141 is laser trimmed for very low offset voltage (50 µV), drift (0.5 µV/°C) and high common-mode rejection (117 dB at G = 100 V/V). The device operates with power supplies as low as ±2.25 V, and quiescent current is only 750 µA.

The INA141 is available in an 8‑pin SOIC package, and is specified for the −40°C to +85°C temperature range.
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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 INA141 Precision, Low-Power, G = 10V/V or 100V/V Instrumentation Amplifier datasheet (Rev. B) PDF | HTML 2026/1/12
應用說明 Importance of Input Bias Current Return Paths in Instrumentation Amplifier Apps PDF | HTML 2021/7/27
電子書 The Signal e-book: A compendium of blog posts on op amp design topics PDF | HTML 2017/3/28

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INAEVM — 通用儀器放大器評估模組

The universal INAEVM (Instrumentation Amplifier Evaluation Module) is available in two package options that simplify prototyping precision instrumentation amplifiers in either the SO-8 (D) package or the MSOP-8(DGK) package with the pinout shown.  See the chart in the user guide (...)

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