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AS8501 High Precision Data Acquisition ICs


The AS8501 is a complete, low power data acquisition system


The ams AS8501 is a complete, low power data acquisition system for very small signals (e.g. voltages from shunt resistors or thermocouples) that operates on a single 5 V power supply. The AS8501 has four ground referring inputs that can be switched separately to the internal PGA.

The outstanding analog performance of the AS8501 is ensured by a specifically designed robot system that tests the IC's individual analog parameters, determines specific trim parameters by means of a complex calibration routine, and stores this data in the IC. It is an improved version of the AS8500, which if offered with a standard trim setting.
AS8501

Features
  • High resolution (16 bit, up to 21 bit by external averaging)
  • High linearity (<0.1%)
  • No offset
  • Sampling rates from 2 Hz up to max 8 kHz
  • Fast dual channel measurement (quasi synchronous)
  • Single 5 V supply
  • Choices for full scale input range versus ground: ±7.5 mV, ±15 mV, ±30 mV, ±120 mV or 800/-300 mV
  • Multiple input channels, configurable as:
    • 4 single ended channels
    • or 2 fully differential inputs
    • With or without programmable pre-amplifier
    • Programmable current sources
  • Low noise (0.1μV RMS for 0-5 Hz)

Digi-Key P/N Manufacturer P/N Description
AS8501-ASOU-ND AS8501-ASOU IC DATA ACQ 16-SOIC Datasheet
AS8510 DB-ND AS8510 DB BOARD DEMOL AS8510 Datasheet