AD8230 16 V Rail-to-Rail, Zero-Drift, Precision Instrumentation Amplifier

The AD8230 is a low drift, differential sampling, precision instrumentation amplifier. Auto-zeroing reduces offset voltage drift to less than 50 nV/°C. The AD8230 is well-suited for thermocouple and bridge transducer applications. The AD8230’s high CMR of 110 dB (minimum) rejects line noise in measurements where the sensor is far from the instrumentation. The 16 V rail-to-rail, common-mode input range is useful for noisy environments where ground potentials vary by several volts. Low frequency noise is kept to a minimal 3 μV p-p, making the AD8230 perfect for applications requiring the utmost dc precision. Moreover, the AD8230 maintains its high performance over the extended industrial temperature range of −40°C to +125°C. Pressure measurements Temperature measurements Strain measurements Automotive diagnostics

Two external resistors are used to program the gain. By using matched external resistors, the gain stability of the AD8230 is much higher than instrumentation amplifiers that use a single resistor to set the gain. In addition to allowing users to program the gain between 101 and 1000, users can adjust the output offset voltage.

The AD8230 is versatile yet simple to use. Its auto-zeroing topology significantly minimizes the input and output transients typical of commutating or chopper instrumentation amplifiers. The AD8230 operates on ±4 V to ±8 V (+8 V to +16 V) supplies and is available in an 8-lead SOIC.

Data Sheet, Rev. B, 9/07

Features and Benefits
  • Resistor programmable gain range: 101 to 1000
  • Supply voltage range: ±4 V to ±8 V
  • Rail-to-rail input and output
  • Maintains performance over −40°C to +125°C
  • Excellent ac and dc performance
    110 dB minimum CMR @ 60 Hz, G = 10 to 1000
    10 μV maximum offset voltage (RTI, ±5 V operation)
    50 nV/°C maximum offset drift
    20 ppm maximum gain nonlinearity
    • Amplifiers
    Data Sheets
    Documentnote
    AD8230: 16 V Rail-to-Rail, Zero-Drift, Precision Instrumentation Amplifier Data Sheet (Rev. B)PDF 421 kB
    Application Notes
    Documentnote
    AN-282: Fundamentals of Sampled Data SystemsPDF 2131 kB
    AN-671: Reducing RFI Rectification Errors in In-Amp CircuitsPDF 208 kB
    Technical Books
    Documentnote
    Order Information
    Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
    AD8230YRZ Production8 ld SOICOTH 98-40 to 125C3.532.99Y
    AD8230YRZ-REEL Production8 ld SOICREEL 2500-40 to 125C3.532.99Y
    AD8230YRZ-REEL7 Production8 ld SOICREEL 1000-40 to 125C3.532.99Y
    Reference Materials
    AD8230：16 V轨到轨、零漂移、精密仪表放大器 (Rev. B) ad8230
    AD8230: 16 V Rail-to-Rail, Zero-Drift, Precision Instrumentation Amplifier Data Sheet (Rev. B) ad8230
    AN-282: Fundamentals of Sampled Data Systems ad1674
    AN-671: 降低仪表放大器电路中的射频干扰整流误差 (Rev. 0) amp03
    AN-282: 采样数据系统基本原理[中文版] (Rev. A) ad75019
    AN-671: Reducing RFI Rectification Errors in In-Amp Circuits amp03
    Auto-Zero Amplifiers ad693
    The AD8221 - Setting a New Industry Standard for Instrumentation Amplifiers amp03
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