STMicroelectronics ADC1283 12-Bit SAR Analog-to-Digital Converter

STMicroelectronics ADC1283 12-Bit SAR Analog-to-Digital Converter (ADC) is a low-power, eight-channel pure CMOS 12-bit ADC specified for conversion from 50ksps to 200ksps, tested at 200ksps (3.2MHz clock frequency). The architecture is based on a successive-approximation register (SAR) with an internal track-and-hold cell. The ADC1283 features eight single-ended multiplexed inputs. The output serial data is straight binary and is SPI™ compatible.

The analog power supply operates from 2.7V to 5.5V. The digital power supply operates independently from the analog supply from 2.7V to 5.5V. The power consumption at a 5V nominal supply is as low as 3.2mW. The STMicroelectronics ADC1283 comes in a plastic TSSOP-16 package and can operate from -40°C to +125°C ambient temperature.

Features

  • 50ksps to 200ksps conversion rate
  • 8-to-1-channel input MUX
  • 2.7V to 5.5V digital I/Os supply voltage
  • 2.7V to 5.5V analog supply voltage
  • DNL (AVCC = DVCC = 5V): +/- 0.9LSB maximum
  • INL (AVCC = DVCC = 5V): +/- 1.2LSB maximum
  • Very low consumption: Pd = 3.2mW typical @ 5V supply
  • Power-down mode
  • -40°C to 125°C temperature range
  • 4-wire SPI serial digital interface
  • TSSOP-16 package

Applications

  • Industrial process control
  • Shunt resistor monitoring
  • Data acquisition and instrumentation
  • Test and measurement equipment
  • Strain gauge sensing
  • Telemetry

Block Diagram

Block Diagram - STMicroelectronics ADC1283 12-Bit SAR Analog-to-Digital Converter

STMicroelectronics ADC1283 12-Bit SAR Analog-to-Digital Converter