AD522 High Accuracy Data Acquisition Instrumentation Amplifier

The AD522 is a precision IC instrumentation amplifier designed for data acquisition applications requiring high accuracy under worst-case operating conditions. An outstanding combination of high linearity, high common mode rejection, low voltage drift, and low noise makes the AD522 suitable for use in many 12-bit data acquisition systems.

An instrumentation amplifier is usually employed as a bridge amplifier for resistance transducers (thermistors, strain gages, etc.) found in process control, instrumentation, data processing, and medical testing. The operating environment is frequently characterized by low signal-to-noise levels, fluctuating temperatures , unbalanced input impedances, and remote location which hinders recalibration.

Features and Benefits
  • Low Drift: 2.0µV/° C (AD522B)
  • Low Nonlinearity: 0.005% (G = 100)
  • High CMRR: >110dB (G = 1000)
  • Low Noise: 1.5µV p-p (0.1 to 100Hz)
  • Low Initial VOS: 100µV (AD522B)
  • Single-Resistor Gain Programmable: 1≤G≤1000
  • Output Reference and Sense Terminals
  • Data Guard for Improving ac CMR
  • Internally Compensated
  • No External Components except
  • Gain Resistor
  • Active Trimmed Offset, Gain, and CMR
  • Amplifiers
    Data Sheets
    Documentnote
    AD522: High Accuracy Data Acquisition Instrumentation Amplifier Data Sheet (Rev. A)PDF 449 kB
    Application Notes
    Documentnote
    AN-244: A User's Guide to I.C. Instrumentation AmplifiersPDF 522 kB
    AN-245: Instrumentation Amplifiers Solve Unusual Design ProblemsPDF 543 kB
    AN-671: Reducing RFI Rectification Errors in In-Amp CircuitsPDF 208 kB
    AN-349: Keys to Longer Life for CMOSPDF 89 kB
    Technical Books
    Documentnote
    Order Information
    Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
    AD522SD/883B Production14 lead CerDip (bottom Brazed)OTH 1-55 to 125C400.330N
    Reference Materials
    AD522: High Accuracy Data Acquisition Instrumentation Amplifier Data Sheet (Rev. A) ad522
    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-349: 延长CMOS寿命的关键因素 adg3233
    AN-244: IC 仪表放大器用户指南 amp03
    AN-244: A User's Guide to I.C. Instrumentation Amplifiers amp03
    AN-245: Instrumentation Amplifiers Solve Unusual Design Problems amp03
    AN-671: Reducing RFI Rectification Errors in In-Amp Circuits amp03
    AN-349: Keys to Longer Life for CMOS ad7703
    Auto-Zero Amplifiers ad693
    The AD8221 - Setting a New Industry Standard for Instrumentation Amplifiers amp03