產品詳細資料

Number of channels 1 Vs (max) (V) 5.5 Vs (min) (V) 1.8 Input offset (±) (max) (µV) 75 Voltage gain (min) (V/V) 1 Voltage gain (max) (V/V) 1000 Noise at 1 kHz (typ) (nV√Hz) 50 Features Zero Drift CMRR (min) (dB) 100 Input offset drift (±) (max) (µV/°C) 0.3 Input bias current (±) (max) (nA) 0.2 Iq (typ) (mA) 0.05 Bandwidth at min gain (typ) (MHz) 0.15 Gain error (±) (max) (%) 0.25 Operating temperature range (°C) -40 to 125 Rating Catalog Type Resistor Output swing headroom (to negative supply) (typ) (V) 0.05 Output swing headroom (to positive supply) (typ) (V) -0.05 Input common mode headroom (to negative supply) (typ) (V) 0.1 Input common mode headroom (to positive supply) (typ) (V) -0.1 Noise at 0.1 Hz to 10 Hz (typ) (µVPP) 1
Number of channels 1 Vs (max) (V) 5.5 Vs (min) (V) 1.8 Input offset (±) (max) (µV) 75 Voltage gain (min) (V/V) 1 Voltage gain (max) (V/V) 1000 Noise at 1 kHz (typ) (nV√Hz) 50 Features Zero Drift CMRR (min) (dB) 100 Input offset drift (±) (max) (µV/°C) 0.3 Input bias current (±) (max) (nA) 0.2 Iq (typ) (mA) 0.05 Bandwidth at min gain (typ) (MHz) 0.15 Gain error (±) (max) (%) 0.25 Operating temperature range (°C) -40 to 125 Rating Catalog Type Resistor Output swing headroom (to negative supply) (typ) (V) 0.05 Output swing headroom (to positive supply) (typ) (V) -0.05 Input common mode headroom (to negative supply) (typ) (V) 0.1 Input common mode headroom (to positive supply) (typ) (V) -0.1 Noise at 0.1 Hz to 10 Hz (typ) (µVPP) 1
VSSOP (DGK) 8 14.7 mm² 3 x 4.9
  • Low Offset Voltage: 75 µV (Maximum), G ≥ 100
  • Low Drift: 0.3 µV/°C, G ≥ 100
  • Low Noise: 50 nV/√Hz, G ≥ 100
  • High CMRR: 100 dB (Minimum), G ≥ 10
  • Low Input Bias Current: 200 pA (Maximum)
  • Supply Range: 1.8 V to 5.5 V
  • Input Voltage: (V–) 0.1 V to (V+) –0.1 V
  • Output Range: (V–) 0.05 V to (V+) –0.05 V
  • Low Quiescent Current: 50 µA
  • Operating Temperature: –40°C to +125°C
  • RFI Filtered Inputs
  • 8-Pin VSSOP Package
  • Low Offset Voltage: 75 µV (Maximum), G ≥ 100
  • Low Drift: 0.3 µV/°C, G ≥ 100
  • Low Noise: 50 nV/√Hz, G ≥ 100
  • High CMRR: 100 dB (Minimum), G ≥ 10
  • Low Input Bias Current: 200 pA (Maximum)
  • Supply Range: 1.8 V to 5.5 V
  • Input Voltage: (V–) 0.1 V to (V+) –0.1 V
  • Output Range: (V–) 0.05 V to (V+) –0.05 V
  • Low Quiescent Current: 50 µA
  • Operating Temperature: –40°C to +125°C
  • RFI Filtered Inputs
  • 8-Pin VSSOP Package

The INA317 is a low-power, precision instrumentation amplifier offering excellent accuracy. The versatile 3-operational amplifier design, small size and low power make the INA317 usable in a wide range of portable applications.

A single external resistor sets any gain from 1 to 1000, as defined by the industry-standard gain equation: G = 1 + (100 kΩ / RG).

The instrumentation amplifier provides low offset voltage (75 µV, G ≥ 100), excellent offset voltage drift
(0.3 µV/°C, G ≥ 100) and high common-mode rejection (100 dB at G ≥ 10). The INA317 operates with power supplies as low as 1.8 V (±0.9 V) and a quiescent current of 50 µA, making the device usable in battery-operated systems. Using autocalibration techniques to ensure precision over the extended industrial temperature range, the INA317 device offers low noise density (50 nV/√Hz) that extends down to DC.

The INA317 is available in an 8-pin VSSOP surface-mount package and is specified over the TA = –40°C to +125°C temperature range.

The INA317 is a low-power, precision instrumentation amplifier offering excellent accuracy. The versatile 3-operational amplifier design, small size and low power make the INA317 usable in a wide range of portable applications.

A single external resistor sets any gain from 1 to 1000, as defined by the industry-standard gain equation: G = 1 + (100 kΩ / RG).

The instrumentation amplifier provides low offset voltage (75 µV, G ≥ 100), excellent offset voltage drift
(0.3 µV/°C, G ≥ 100) and high common-mode rejection (100 dB at G ≥ 10). The INA317 operates with power supplies as low as 1.8 V (±0.9 V) and a quiescent current of 50 µA, making the device usable in battery-operated systems. Using autocalibration techniques to ensure precision over the extended industrial temperature range, the INA317 device offers low noise density (50 nV/√Hz) that extends down to DC.

The INA317 is available in an 8-pin VSSOP surface-mount package and is specified over the TA = –40°C to +125°C temperature range.

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重要文件 類型 標題 格式選項 日期
* Data sheet INA317 Micro-Power (50-µA), Zero-Drift, Rail-to-Rail-Out Instrumentation Amplifier datasheet PDF | HTML 2017年 11月 21日
Application note Importance of Input Bias Current Return Paths in Instrumentation Amplifier Apps PDF | HTML 2021年 7月 27日
Application brief Zero-Drift Amplifiers: Features and Benefits (Rev. C) 2021年 1月 28日
Application brief Comprehensive Error Calculation for Instrumentation Amplifiers 2019年 3月 26日
Analog Design Journal Measuring the linear operating region of instrumentation amplifiers 2016年 10月 24日
Analog Design Journal VCM vs. VOUT plots for instrumentation amplifiers with two op amps 2015年 10月 30日

設計與開發

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模擬型號

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模擬型號

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SBOMAQ7A.TSC (1395 KB) - TINA-TI Reference Design
模擬型號

INA317 TINA-TI Spice Model (Rev. A)

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計算工具

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支援產品和硬體

支援產品和硬體

模擬工具

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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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模擬工具

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參考設計

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電路圖: PDF
參考設計

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Design guide: PDF
電路圖: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
VSSOP (DGK) 8 Ultra Librarian

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內含資訊:
  • RoHS
  • REACH
  • 產品標記
  • 鉛塗層/球物料
  • MSL 等級/回焊峰值
  • MTBF/FIT 估算值
  • 材料內容
  • 認證摘要
  • 進行中的可靠性監測
內含資訊:
  • 晶圓廠位置
  • 組裝地點

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