AD8235 40 μA Micropower Instrumentation Amplifier in WLCSP Package

The AD8235 is the smallest and lowest power instrumentation amplifier in the industry. It is available in a 1.5 mm × 2.2 mm wafer level chip scale package (WLCSP). The AD8235 draws a maximum quiescent current of 40 μA. In addition, it draws a maximum 500 nA of current during shutdown mode, making it an excellent instrumentation amplifier for battery powered, portable applications.

The AD8235 can operate on supply voltages as low as 1.8 V. The input stage allows for wide rail-to-rail input voltage range without the crossover distortion, common in other designs. The rail-torail output enables easy interfacing to ADCs.

The AD8235 is an excellent choice for signal conditioning. Its low input bias current of 50 pA and high CMRR of 110 dB (G = 100) offer tremendous value for its size and low power. It is specified over the extended industrial temperature range of −40°C to 125°C.

Applications
  • Medical instrumentation
  • Low-side current sense
  • Portable electronics
Features and Benefits
  • Low power
    • 40 μA maximum supply current
    • 6 nA shutdown current
  • 40 μA maximum supply current
  • 6 nA shutdown current
  • Low input currents
    • 50 pA input bias current
    • 25 pA input offset current
  • 50 pA input bias current
  • 25 pA input offset current
  • High Common Mode Rejection Ratio (CMRR)
    • 110 dB CMRR , G = 100
  • 110 dB CMRR , G = 100
  • Space saving
    • WLCSP package
  • WLCSP package
  • Zero input crossover distortion
  • Versatile
    • Rail-to-rail input and output
    • Shutdown
    • Gain set with single resistor (G = 5 to 200)
  • Rail-to-rail input and output
  • Shutdown
  • Gain set with single resistor (G = 5 to 200)
  • AD8236: μSOIC package version of AD8235
  • Amplifiers
    Power Management
    SPICE Models
    Data Sheets
    Documentnote
    AD8235: 40 μA Micropower Instrumentation Amplifier in WLCSP Package Data Sheet (Rev. A)PDF 502.9 K
    Technical Books
    Documentnote
    Order Information
    Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
    AD8235ACBZ-P7 Production11 Ball WLCSP (2.04x1.57) OTH 3000-40 to 125C00.99Y
    Reference Materials
    AD8235: 40 μA Micropower Instrumentation Amplifier in WLCSP Package Data Sheet (Rev. A) ad8235
    AD8235 SPICE Macro Model ad8235
    MS-2178: CareFusion与ADI之间的探讨:优化EEG放大器的性能并降低功耗 ad8271