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AS89010 Current-to-Digital Converter

16-bit 4-channel ADC with I²C Output


  • 4-channel Current-to-Digital Converter (ADC) with I²C Control / Output
  • 16-bit (internal 20 bit) digital serial output
  • Dynamic range 1: 1.000.000 (in combination with AS73210)
  • 16-bit/400kHz fast I²C interface with programmable slave addresses
  • Automatic power down (sleep function)
  • Scaling the internal 20-bit per shifter on 16-bit output
  • Temperature compensation on chip


  • Conversion of 4 sensor signals of photodiodes or other sensors with current signal output
  • High linearity of amplifying, no cross talking
  • High absolute accuracy without additional sources
  • High reliability internal reference source generation
  • Low power consumption

Product parameters

Interface 16-bit/400kHz fast I²C interface
Programmable Gain, integration time, 16-bit output via shifter, interrupt
Sensitivity up to 20 fA/LSB
Input Current 20nA - 5µA
Signal Frequencies [kHz] 1ms to 1s
Supply Voltage [V] 2.7 to 3.6
Package SSOP16
Size [mm] 4.80 x 5.79 x 1.35
Temperature Range [°C] -40 to 125

General description

The AS89010 processes via charge-balance method and converts lowest photocurrents at high accuracy. Its full-scale range can be customized to specific applications. Sensitivity of 20 fA/LSB at a dynamic of 1 to 1,000,000. The IC is temperature compensated and features the possibility of external synchronization.

This product suits for the following applications:

  • Metrology (industrial and medical)
  • Process control
  • Chemical analytics
  • Infotainment monitors
  • High-quality displays

Technical documents

Type Description Language
Datasheet Document version 3V11 English
User Guide AS89010-EB1 2V01 Eval Board (I2C) English
User Guide User Guide AS73210-AS89010-AB4 2V01 Development Kit English
User Guide User Guide AS73210-AS89010-C3 SET DK 1V00 Development Kit (USB) English


Type Description Language
EoL Notification AS89000, AS89010 (Oct-2022) English
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