AD8538 Low Power, Precision, Auto-Zero Op Amp (5-lead TSOT-23)

The AD8538/AD8539 are very high precision amplifiers featuring extremely low offset voltage, low input bias current, and low power consumption. The supply current is less than 215 μA maximum per amplifier at 5.0 V. Operation is fully specified from 2.7 V to 5.0 V single supply (±1.35 V to ±2.5 V dual supply).

The AD8538/AD8539 operate at very low power making these amplifiers ideal for battery-powered devices and portable equipment.

The AD8538/AD8539 are specified over the extended industrial temperature range (−40°C to +125°C). The AD8538 amplifier is available in 5-lead TSOT-23, and 8-lead, narrow body SOIC packages, and the AD8539 amplifier is available in 8-lead, narrow body SOIC and 8-lead MSOP.

Applications
  • Mobile communications
  • Portable instrumentation
  • Battery-powered devices
  • Sensor interfaces
  • Temperature measurement
  • Electronic scales
  • Qualified for Automotive Applications
Features and Benefits
  • Low offset voltage: 13 μV maximum
  • Input offset drift: 0.03 μV/°C
  • Single-supply operation: 2.7 V to 5.5 V
  • High gain, CMRR, and PSRR
  • Low input bias current: 25 pA
  • Low supply current: 180 μA
  • Qualified for Automotive Applications
  • Amplifiers
    SPICE Models
    Data Sheets
    Documentnote
    AD8538/AD8539: Low Power, Precision, Auto-Zero Op Amps Data Sheet (Rev. B)PDF 976 kB
    Application Notes
    Documentnote
    AN-1114: Lowest Noise Zero-Drift Amplifier Has 5.6 nV/√Hz Voltage Noise Density (Rev. B)PDF 182 kB
    Order Information
    Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
    AD8538ARZ Production8 ld SOICOTH 98-40 to 125C1.060.5Y
    AD8538ARZ-REEL7 Production8 ld SOICREEL 1000-40 to 125C00.5Y
    AD8538AUJZ-R2 Production5 ld TSOTREEL 250-40 to 125C1.471.47Y
    AD8538AUJZ-REEL Last Time Buy5 ld TSOTREEL 10000-40 to 125C00Y
    AD8538AUJZ-REEL7 Production5 ld TSOTREEL 3000-40 to 125C00.5Y
    AD8538WAUJZ-R7 Production5 ld TSOTREEL 3000-40 to 125C00.6Y
    Evaluation Boards
    Part NumberDescriptionPriceRoHS
    EVAL-PRAOPAMP-1KSZSingle KS-5 lead SC70 Evaluation Board20.19Y
    EVAL-PRAOPAMP-1RJZSingle RJ-5 lead SOT23 Evaluation Board20.19Y
    EVAL-PRAOPAMP-1RMZSingle RM-8 lead MSOP Evaluation Board20.19Y
    EVAL-PRAOPAMP-1RZSingle R-8 lead SOIC Evaluation Board20.19Y
    Reference Materials
    AD8538/AD8539: Low Power, Precision, Auto-Zero Op Amps Data Sheet (Rev. B) ad8538
    AD8538 SPICE Macro Model ad8538
    AN-1114: 最低噪声的零漂移放大器提供5.6 nV/√Hz电压噪声密度 (Rev. B) ad8628
    AN-1114: Lowest Noise Zero-Drift Amplifier Has 5.6 nV/√Hz Voltage Noise Density (Rev. B) ad8628
    MT-055: 斩波稳定(自稳零)精密运算放大器 ad8628
    MT-052:运算放大器噪声指数:不要被误导 ad829
    MT-050: 二阶系统的运算放大器总输出噪声计算 ad9631
    MT-049:单极点系统的运算放大器总输出噪声计算 ad829
    MT-048:运算放大器噪声关系:1/f噪声、均方根(RMS)噪声与等效噪声带宽 ad829
    MT-047:运算放大器噪声 ad829
    Demystifying Auto-Zero Amplifiers Part 1 ad8551
    MS-2066:传感器电路的低噪声信号调理 ad8628