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AS89000 Transimpedance-Amplifier

4-channel programmable gain transimpedance amplifier with analog output

Features

  • 4-channel resistive transimpedance amplifier
  • Programmable in 8 levels - 25 kΩ to 20 MΩ, 25 nA to 20 μA, 6 to 300 kHz
  • Integrated compensation of input capacities
  • Temperature compensation on chip possible by using of channel 4
  • Power down mode
  • Output analog voltage values

Benefits

  • Signal conditioning of sensors with current outputs
  • Adjustment of the transimpedance in 8 stages per firmware
  • Suitable for signal frequencies in the range of 6 to 300kHz
  • COB- mounting and SMD
  • Low power consumption

Product parameters

Interface Analog voltage output
Programmable Transimpedance in 8 stages 25kOhm - 20MOhm
Input Current 25nA - 20µA
Sensitivity
Signal Frequencies [kHz] 6 to 300
Supply Voltage [V] 0.3 - 7.0
Package QSOP16
Size [mm] 4.90 x 6.00 x 1.75
Temperature Range [°C] -40 to 125

General Description

The AS89000-devices are a family of integrated circuits of programmable gain transimpedance amplifiers with 4 channels per IC (more custom specific, on request). The AS89000-devices are mainly used for signal conditioning of sensors with current outputs. They are especially suitable for connection of photodiodes of array and row sensors. The possibility to adjust the transimpedance in 8 stages is a special feature. The adjustment is made by programming three pins and is valid for all channels together. The device packages (naked chip on request) are RoHS conform and optimized for COB- mounting and SMD.

This product suits for the following applications:

  • Industrial automation
  • Process control
  • Spectral sensing

Technical Documents

Name Type Description Version Language
AS89000_DS000554_1-00.pdf Datasheet Document version 3V01 1-00 English

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