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INA327

現行

具有關機功能的精密度、低漂移、CMOS 儀表放大器

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產品規格表

INA327

現行
產品規格表 立即訂購

產品詳細資料

Number of channels 1 Vs (max) (V) 5.5 Vs (min) (V) 2.7 Input offset (±) (max) (µV) 100 Voltage gain (min) (V/V) 0.1 Voltage gain (max) (V/V) 1000 Noise at 1 kHz (typ) (nV√Hz) 33 Features Cost Optimized, Shutdown CMRR (min) (dB) 100 Input offset drift (±) (max) (µV/°C) 0.4 Input bias current (±) (max) (nA) 2 Iq (typ) (mA) 2.4 Bandwidth at min gain (typ) (MHz) 0.001 Gain error (±) (max) (%) 0.2 Operating temperature range (°C) -40 to 85 Rating Catalog Type Resistor Gain nonlinearity (±) (max) (%) 0.01 Output swing headroom (to negative supply) (typ) (V) 0.005 Output swing headroom (to positive supply) (typ) (V) -0.005 Input common mode headroom (to negative supply) (typ) (V) -0.02 Input common mode headroom (to positive supply) (typ) (V) 0.1 Noise at 0.1 Hz to 10 Hz (typ) (µVPP) 0.8
Number of channels 1 Vs (max) (V) 5.5 Vs (min) (V) 2.7 Input offset (±) (max) (µV) 100 Voltage gain (min) (V/V) 0.1 Voltage gain (max) (V/V) 1000 Noise at 1 kHz (typ) (nV√Hz) 33 Features Cost Optimized, Shutdown CMRR (min) (dB) 100 Input offset drift (±) (max) (µV/°C) 0.4 Input bias current (±) (max) (nA) 2 Iq (typ) (mA) 2.4 Bandwidth at min gain (typ) (MHz) 0.001 Gain error (±) (max) (%) 0.2 Operating temperature range (°C) -40 to 85 Rating Catalog Type Resistor Gain nonlinearity (±) (max) (%) 0.01 Output swing headroom (to negative supply) (typ) (V) 0.005 Output swing headroom (to positive supply) (typ) (V) -0.005 Input common mode headroom (to negative supply) (typ) (V) -0.02 Input common mode headroom (to positive supply) (typ) (V) 0.1 Noise at 0.1 Hz to 10 Hz (typ) (µVPP) 0.8
VSSOP (DGS) 10 14.7 mm² (3 mm × 4.9 mm)
  • PRECISION
       LOW OFFSET: 100 µV (max)
       LOW OFFSET DRIFT: 0.4 µV/°C (max)
       EXCELLENT LONG-TERM STABILITY
       VERY-LOW 1/f NOISE
  • TRUE RAIL-TO-RAIL I/O
       INPUT COMMON-MODE RANGE:
          20mV Below Negative Rail to 100mV Above Positive Rail
       WIDE OUTPUT SWING: Within 10mV of Rails
       SUPPLY RANGE: Single +2.7V to +5.5V
  • SMALL SIZE
       microPACKAGE: MSOP-8, MSOP-10
  • LOW COST
  • APPLICATIONS
    • LOW-LEVEL TRANSDUCER AMPLIFIER FOR BRIDGES, LOAD CELLS, THERMOCOUPLES
    • WIDE DYNAMIC RANGE SENSOR MEASUREMENTS
    • HIGH-RESOLUTION TEST SYSTEMS
    • WEIGH SCALES
    • MULTI-CHANNEL DATA ACQUISITION SYSTEMS
    • MEDICAL INSTRUMENTATION
    • GENERAL-PURPOSE
  • PRECISION
       LOW OFFSET: 100 µV (max)
       LOW OFFSET DRIFT: 0.4 µV/°C (max)
       EXCELLENT LONG-TERM STABILITY
       VERY-LOW 1/f NOISE
  • TRUE RAIL-TO-RAIL I/O
       INPUT COMMON-MODE RANGE:
          20mV Below Negative Rail to 100mV Above Positive Rail
       WIDE OUTPUT SWING: Within 10mV of Rails
       SUPPLY RANGE: Single +2.7V to +5.5V
  • SMALL SIZE
       microPACKAGE: MSOP-8, MSOP-10
  • LOW COST
  • APPLICATIONS
    • LOW-LEVEL TRANSDUCER AMPLIFIER FOR BRIDGES, LOAD CELLS, THERMOCOUPLES
    • WIDE DYNAMIC RANGE SENSOR MEASUREMENTS
    • HIGH-RESOLUTION TEST SYSTEMS
    • WEIGH SCALES
    • MULTI-CHANNEL DATA ACQUISITION SYSTEMS
    • MEDICAL INSTRUMENTATION
    • GENERAL-PURPOSE

The INA326 and INA327 (with shutdown) are high-performance, low-cost, precision instrumentation amplifiers with rail-to-rail input and output. They are true single-supply instrumentation amplifiers with very low DC errors and input common-mode ranges that extends beyond the positive and negative rails. These features make them suitable for applications ranging from general-purpose to high-accuracy.

Excellent long-term stability and very low 1/f noise assure low offset voltage and drift throughout the life of the product.

The INA326 (without shutdown) comes in the MSOP-8 package. The INA327 (with shutdown) is offered in an MSOP-10. Both are specified over the industrial temperature range, –40°C to +85°C, with operation from –40°C to +125°C.

The INA326 and INA327 (with shutdown) are high-performance, low-cost, precision instrumentation amplifiers with rail-to-rail input and output. They are true single-supply instrumentation amplifiers with very low DC errors and input common-mode ranges that extends beyond the positive and negative rails. These features make them suitable for applications ranging from general-purpose to high-accuracy.

Excellent long-term stability and very low 1/f noise assure low offset voltage and drift throughout the life of the product.

The INA326 (without shutdown) comes in the MSOP-8 package. The INA327 (with shutdown) is offered in an MSOP-10. Both are specified over the industrial temperature range, –40°C to +85°C, with operation from –40°C to +125°C.
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INA326 現行 精密低漂移 CMOS 儀器放大器 Non-shutdown version see INA326

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 INA326, 327: Precision, Rail-To-Rail I/O Instrumentation Amplifier datasheet (Rev. D) 2004/11/3
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

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)。

模擬型號

INA327 PSpice Model (Rev. A)

SBOM489A.ZIP (32 KB) - PSpice 模型
支援產品和硬體
模擬型號

INA327 TINA-TI Reference Design Enhanced Long Simulation Time (Rev. B)

SBOC171B.TSC (120 KB) - TINA-TI 參考設計
支援產品和硬體
模擬型號

INA327 TINA-TI Spice Model Enhanced-Long Simulation Time (Rev. A)

SBOM250A.ZIP (10 KB) - TINA-TI Spice 模型
支援產品和硬體
模擬型號

INA327T TINA-TI Reference Design Standard-Recommended (Rev. B)

SBOC172B.TSC (110 KB) - TINA-TI 參考設計
支援產品和硬體
模擬型號

INA327T TINA-TI Spice Model Standard-Recommended (Rev. A)

SBOM251A.ZIP (10 KB) - TINA-TI Spice 模型
支援產品和硬體
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
封裝 針腳 CAD 符號、佔位空間與 3D 模型
VSSOP (DGS) 10 Ultra Librarian
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