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

Description
The ADC1283 is a low-power, eight-channel pure CMOS 12-bit analog-to-digital
converter specified for conversion from 50 ksps to 200 ksps, tested at 200 ksps
(3.2 MHz clock frequency). The architecture is based on a successive-approximation
register with an internal track-and-hold cell. The ADC1283 features 8 single-ended
multiplexed inputs. The output serial data is straight binary and is SPI™ compatible.
The analog power supply operates from 2.7 V to 5.5 V. The digital power supply
operates independently from analog supply from 2.7 V to 5.5 V. The power
consumption at 5 V nominal supply is as low as 3.2 mW. The ADC1283 comes
in a plastic TSSOP-16 package and can operate from -40 °C to +125 °C ambient
temperature.