Feature

●The DS1220 is a precision 24-bit analog-to-digital converter (ADC) that provides many integrated features to reduce system cost and component count for small sensor signals.
●The device passes a flexible input multiplexer (MUX), low noise, programmable gain amplifier (PGA), two programmable excitation current sources, a voltage reference, an oscillator, a low side switch and a precision Temperature sensor to implement two differential or four single-ended inputs.
●Low current consumption: as low as 120μA in duty cycle mode (typical)
●Power range: 3 V~5 V
●Internal temperature sensor: 0.5°C (typical) accuracy


Description

Product Features:

Low current consumption: as low as 120μA in duty cycle mode (typical)

Power range: 3 V~5 V

Up to 20 effective resolutions

Two differential or four single-ended inputs

Dual matched programmable current source: 10μA to 1.5 mA

Internal 2.048-V Reference: 5 ppm/°C (typical) Drift

Internal 2% precision oscillator

Internal temperature sensor: 0.5°C (typical) accuracy

SPI compatible interface (mode 1)

Applications:

Temperature sensor measurement:

1.Thermistor

2.Thermocouple

3. Resistance Temperature Detector (RTD): 2-wire, 3-wire or 4-wire type

Bridge sensor measurement:

1.Pressure sensor

2.Strain gauge

3. Scale

Portable instrument

Factory automation and process control

Package include:

2 x CJMCU-1220 ADS1220 ADC I2C Low Power 24 Bit A/D Converter Module with pins