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INA2128

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雙路低功耗儀器放大器

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INA2128

現行
產品規格表 立即訂購

產品詳細資料

Number of channels 2 Vs (max) (V) 36 Vs (min) (V) 4.5 Input offset (±) (max) (µV) 50 Voltage gain (min) (V/V) 1 Voltage gain (max) (V/V) 10000 Noise at 1 kHz (typ) (nV√Hz) 8 Features Current Feedback, Overvoltage protection CMRR (min) (dB) 120 Input offset drift (±) (max) (µV/°C) 0.5 Input bias current (±) (max) (nA) 5 Iq (typ) (mA) 0.7 Bandwidth at min gain (typ) (MHz) 1.3 Gain error (±) (max) (%) 0.5 Operating temperature range (°C) -40 to 85 Rating Catalog Type Resistor Gain nonlinearity (±) (max) (%) 0.002 Output swing headroom (to negative supply) (typ) (V) 0.8 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 2 Vs (max) (V) 36 Vs (min) (V) 4.5 Input offset (±) (max) (µV) 50 Voltage gain (min) (V/V) 1 Voltage gain (max) (V/V) 10000 Noise at 1 kHz (typ) (nV√Hz) 8 Features Current Feedback, Overvoltage protection CMRR (min) (dB) 120 Input offset drift (±) (max) (µV/°C) 0.5 Input bias current (±) (max) (nA) 5 Iq (typ) (mA) 0.7 Bandwidth at min gain (typ) (MHz) 1.3 Gain error (±) (max) (%) 0.5 Operating temperature range (°C) -40 to 85 Rating Catalog Type Resistor Gain nonlinearity (±) (max) (%) 0.002 Output swing headroom (to negative supply) (typ) (V) 0.8 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 (DW) 16 106.09 mm² 10.3 x 10.3
  • Low offset voltage: 50µV max
  • Low drift: 0.5µV/°C max
  • Low input bias current:
    • 5nA max (CSO: SHE)
    • 0.7nA max (CSO: TID)
  • Input voltage noise: 8nV/√Hz at 1kHz
  • High bandwidth: 1.3 MHz at G=1 V/V
  • High CMR: 120dB min
  • Inputs protected to ±40V
  • Wide supply range: ±2.25V to ±18V
  • Low quiescent current: 700µA per channel
  • Temperature range: –40°C to +85°C
  • Package: 16-pin SOIC
  • Low offset voltage: 50µV max
  • Low drift: 0.5µV/°C max
  • Low input bias current:
    • 5nA max (CSO: SHE)
    • 0.7nA max (CSO: TID)
  • Input voltage noise: 8nV/√Hz at 1kHz
  • High bandwidth: 1.3 MHz at G=1 V/V
  • High CMR: 120dB min
  • Inputs protected to ±40V
  • Wide supply range: ±2.25V to ±18V
  • Low quiescent current: 700µA per channel
  • Temperature range: –40°C to +85°C
  • Package: 16-pin SOIC

The INA2128 is a dual, low-power, general-purpose instrumentation amplifier (IA) 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 (200kHz at G = 100). A single external resistor sets any gain from 1 to 10,000. Internal input protection can withstand up to ±40V without damage.

The INA2128 is laser-trimmed for very low offset voltage (50µV), drift (0.5µV/°C) and high common-mode rejection (120dB at G ≥ 100). The device operates with power supplies as low as ±2.25V, and quiescent current is only 700µA per IA—a great choice for battery-operated and multiple-channel systems.

The INA2128 is available in an SOIC-16 package, and is specified from –40°C to +85°C.

The INA2128 is a dual, low-power, general-purpose instrumentation amplifier (IA) 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 (200kHz at G = 100). A single external resistor sets any gain from 1 to 10,000. Internal input protection can withstand up to ±40V without damage.

The INA2128 is laser-trimmed for very low offset voltage (50µV), drift (0.5µV/°C) and high common-mode rejection (120dB at G ≥ 100). The device operates with power supplies as low as ±2.25V, and quiescent current is only 700µA per IA—a great choice for battery-operated and multiple-channel systems.

The INA2128 is available in an SOIC-16 package, and is specified from –40°C to +85°C.
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重要文件 類型 標題 格式選項 日期
* Data sheet INA2128 Dual, Low-Power Instrumentation Amplifier datasheet (Rev. C) PDF | HTML 2026年 1月 12日
Certificate INA-DUAL-2AMP-EVM EU RoHS Declaration of Conformity (DoC) 2021年 9月 7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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開發板

INA-DUAL-2AMP-EVM — 適用於雙通道雙放大器 INA 產品的通用儀器放大器評估模組

INA-DUAL-2AMP-EVM 是與各種雙通道雙放大器儀器放大器 (INA) 相容的評估模組 (EVM)。此 EVM 與 SOIC-16 (D) 和 SOIC-16 (DW) INA 封裝相容，旨在評估單電源和雙電源配置的裝置性能。

使用指南: PDF | HTML
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模擬型號

INA2128 PSpice Model (Rev. B)

SBOM022B.ZIP (58 KB) - PSpice Model
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模擬型號

INA2128 TINA-TI Reference Design (Rev. C)

SBOC146C.TSC (90 KB) - TINA-TI Reference Design
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INA2128 TINA-TI Spice Model (Rev. B)

SBOM215B.ZIP (6 KB) - TINA-TI Spice 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。 

在 PSpice for TI 設計與模擬工具中，您可以搜尋 TI (...)
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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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封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOIC (DW) 16 Ultra Librarian
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