AS89020 Converter with digital output
4-channel, current input 12-bit Analog-to-Digital Converter (ADC)
특징
- 4 channel, current input analog-to-digital converter (ADC)
- 12-bit digital output
- Each channel is addressable and programmable in 17 levels
- Measurement of positive and negative currents
- Temperature compensation on chip
- Fast SPI serial digital output
장점
- Conversion of 4 sensor signals of photodiodes or other sensors with current signal output
- Each channel separately programmable in 17 stages
- Parallel sampling + MUX + SPI output
- High amplification linearity, no cross talk
- High absolute accuracy without additional sources
- Supply and temperature independet performance
- Low power consumption
제품 매개 변수
| Interface | Fast SPI up to 16MHz |
|---|---|
| Programmable | Transimpedance in 17 stages 20kOhm - 102MOhm |
| Sensitivity | up to 2.8 pA/LSB |
| Input Current | 12nA - 12µA |
| Signal Frequencies [kHz] | 3 to 340 |
| Supply Voltage [V] | 2.7 to 3.6 |
| Package | SSOP20 |
| Size [mm] | 8.56 x 5.84 x 1.62 |
| Temperature Range [°C] | -25 to 85 |
| Size [mm] |
일반 설명
The AS89020 is a 12-bit, 4-channel, current input Analog-to-Digital Converter (ADC). It combines current-to-voltage (TIA) and analog-to-digital (AD) conversion, so that 4 separate current output devices (e.g. photodiodes) can be directly connected to its inputs and digitized.
For each of the 4 inputs the AS89020 provides an input amplifier with a track and hold circuit. The outputs of the track and hold stages are serial converted to 12-bit digital words using an analog-to-digital converter (ADC).
Not Recommended for New Designs
ams-OSRAM AG is discontinuing production of this device. Final lifetime buy order must be placed by June 30, 2021. Please contact your local sales representative for further information.
이 제품은 다음 적용 분야에 적합합니다:
- Industrial automation
- Process control
- Color matching
- Print control
기술 문서
| 유형 | 설명 | 언어 | ||
|---|---|---|---|---|
| Datasheet | Document version 3V01 | English |
알림
| 유형 | 설명 | 언어 | ||
|---|---|---|---|---|
| EoL Notification | AS1xxx, AS25xx, AS3xxx, AS73211, AS89020, SL900A, TMD4704 (issued 2020-Dec) | English |
관련 제품
AS89000 Transimpedance-Amplifier
AS89000
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.
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.
AS89010 Current-to-Digital Converter
AS89010
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.
AS73211 - JENCOLOR® Digital XYZ Sensor
AS73211
The AS73211 is a digital XYZ sensor with I2C interface for relative and absolute color measurement and control. The combination of True Color XYZ sensitized photodiodes with a filter function based on the standard CIE 1931/DIN 5033 (human eye perception) and used interference filter technology as leading and most accurate technology of three-range sensors makes the AS73211 more accurate than RGB sensors and guarantee this function without spectral changings over lifetime. The AS73211 is designed with a high dynamic range to measure any light in the visible range (VIS) in environments from sunlight to dark rooms, dimmed LEDs, or dark colored monitors.
AS89000 Transimpedance-Amplifier
AS89000
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.
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.
AS89010 Current-to-Digital Converter
AS89010
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.