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INA125

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INA125

現行
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產品詳細資料

Number of channels 1 Vs (max) (V) 36 Vs (min) (V) 2.7 Input offset (±) (max) (µV) 250 Voltage gain (min) (V/V) 4 Voltage gain (max) (V/V) 10000 Noise at 1 kHz (typ) (nV√Hz) 38 Features Overvoltage protection CMRR (min) (dB) 100 Input offset drift (±) (max) (µV/°C) 2 Input bias current (±) (max) (nA) 25 Iq (typ) (mA) 0.46 Bandwidth at min gain (typ) (MHz) 0.15 Gain error (±) (max) (%) 0.5 Operating temperature range (°C) -40 to 85 Rating Catalog Type Resistor Gain nonlinearity (±) (max) (%) 0.004 Output swing headroom (to negative supply) (typ) (V) 0.4 Output swing headroom (to positive supply) (typ) (V) -0.9 Input common mode headroom (to negative supply) (typ) (V) 4.3 Input common mode headroom (to positive supply) (typ) (V) -4.8 Noise at 0.1 Hz to 10 Hz (typ) (µVPP) 0.8
Number of channels 1 Vs (max) (V) 36 Vs (min) (V) 2.7 Input offset (±) (max) (µV) 250 Voltage gain (min) (V/V) 4 Voltage gain (max) (V/V) 10000 Noise at 1 kHz (typ) (nV√Hz) 38 Features Overvoltage protection CMRR (min) (dB) 100 Input offset drift (±) (max) (µV/°C) 2 Input bias current (±) (max) (nA) 25 Iq (typ) (mA) 0.46 Bandwidth at min gain (typ) (MHz) 0.15 Gain error (±) (max) (%) 0.5 Operating temperature range (°C) -40 to 85 Rating Catalog Type Resistor Gain nonlinearity (±) (max) (%) 0.004 Output swing headroom (to negative supply) (typ) (V) 0.4 Output swing headroom (to positive supply) (typ) (V) -0.9 Input common mode headroom (to negative supply) (typ) (V) 4.3 Input common mode headroom (to positive supply) (typ) (V) -4.8 Noise at 0.1 Hz to 10 Hz (typ) (µVPP) 0.8
PDIP (N) 16 181.42 mm² 19.3 x 9.4 SOIC (D) 16 59.4 mm² 9.9 x 6
  • LOW QUIESCENT CURRENT: 460µA
  • PRECISION VOLTAGE REFERENCE: 1.24V, 2.5V, 5V or 10V
  • SLEEP MODE
  • LOW OFFSET VOLTAGE: 250µV max
  • LOW OFFSET DRIFT: 2µV/°C max
  • LOW INPUT BIAS CURRENT: 20nA max
  • HIGH CMR: 100dB min
  • LOW NOISE: 38nV/sqrt(Hz) at f = 1kHz
  • INPUT PROTECTION TO ±40V
  • WIDE SUPPLY RANGE
    • Single Supply: 2.7V to 36V
    • Dual Supply: ±1.35V to ±18V
  • 16-PIN DIP and SO-16 SOIC PACKAGES
  • LOW QUIESCENT CURRENT: 460µA
  • PRECISION VOLTAGE REFERENCE: 1.24V, 2.5V, 5V or 10V
  • SLEEP MODE
  • LOW OFFSET VOLTAGE: 250µV max
  • LOW OFFSET DRIFT: 2µV/°C max
  • LOW INPUT BIAS CURRENT: 20nA max
  • HIGH CMR: 100dB min
  • LOW NOISE: 38nV/sqrt(Hz) at f = 1kHz
  • INPUT PROTECTION TO ±40V
  • WIDE SUPPLY RANGE
    • Single Supply: 2.7V to 36V
    • Dual Supply: ±1.35V to ±18V
  • 16-PIN DIP and SO-16 SOIC PACKAGES

The INA125 is a low power, high accuracy instrumentation amplifier with a precision voltage reference. It provides complete bridge excitation and precision differential-input amplification on a single integrated circuit.

A single external resistor sets any gain from 4 to 10,000. The INA125 is laser-trimmed for low offset voltage (250µV), low offset drift (2µV/°C), and high common-mode rejection (100dB at G = 100). It operates on single (+2.7V to +36V) or dual (±1.35V to ±18V) supplies.

The voltage reference is externally adjustable with pin-selectable voltages of 2.5V, 5V, or 10V, allowing use with a variety of transducers. The reference voltage is accurate to ±0.5% (max) with ±35ppm/°C drift (max). Sleep mode allows shutdown and duty cycle operation to save power.

The INA125 is available in 16-pin plastic DIP and SO-16 surface-mount packages and is specified for the -40°C to +85°C industrial temperature range.

The INA125 is a low power, high accuracy instrumentation amplifier with a precision voltage reference. It provides complete bridge excitation and precision differential-input amplification on a single integrated circuit.

A single external resistor sets any gain from 4 to 10,000. The INA125 is laser-trimmed for low offset voltage (250µV), low offset drift (2µV/°C), and high common-mode rejection (100dB at G = 100). It operates on single (+2.7V to +36V) or dual (±1.35V to ±18V) supplies.

The voltage reference is externally adjustable with pin-selectable voltages of 2.5V, 5V, or 10V, allowing use with a variety of transducers. The reference voltage is accurate to ±0.5% (max) with ±35ppm/°C drift (max). Sleep mode allows shutdown and duty cycle operation to save power.

The INA125 is available in 16-pin plastic DIP and SO-16 surface-mount packages and is specified for the -40°C to +85°C industrial temperature range.
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重要文件 類型 標題 格式選項 日期
* Data sheet Instrumentation Amplifier with Precision Voltage Reference datasheet 2000年 9月 27日
E-book An Engineer's Guide to Current Sensing (Rev. B) 2022年 4月 12日
Application brief Simplify Voltage and Current Measurement in Battery Test Equipment (Rev. A) PDF | HTML 2022年 3月 10日
Application note Importance of Input Bias Current Return Paths in Instrumentation Amplifier Apps PDF | HTML 2021年 7月 27日
E-book The Signal e-book: A compendium of blog posts on op amp design topics 2017年 3月 28日

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模擬型號

INA125 PSpice Model (Rev. B)

SBOM020B.ZIP (25 KB) - PSpice Model
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計算工具

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

The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)

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PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

PSpice® for TI 是有助於評估類比電路功能的設計和模擬環境。這款全功能設計和模擬套件使用 Cadence® 的類比分析引擎。PSpice for TI 包括業界最大的模型庫之一，涵蓋我們的類比和電源產品組合，以及特定類比行為模型，且使用無需支付費用。

PSpice for TI 設計和模擬環境可讓您使用其內建函式庫來模擬複雜的混合訊號設計。在進行佈局和製造之前，建立完整的終端設備設計和解決方案原型，進而縮短上市時間並降低開發成本。 

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TINA-TI — 基於 SPICE 的類比模擬程式

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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PDIP (N) 16 Ultra Librarian
SOIC (D) 16 Ultra Librarian
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