CJMCU-1220 ADS1220 ADC 24 Bit Analog-to-Digital Converter Module I2C Low Power .
The ADS1220 is a precision 24-bit analog-to-digital converter (ADC), it provides many integration capabilities, to reduce the system cost and measure the sensor signal components counting. The equipment through a flexible input multiplexer (MUX), low noise and programmable gain amplifier (PGA), two programmable exciting current sources, a voltage reference, an oscillator, a low voltage side switch and a precision temperature sensor to achieve four two differential or single-ended input.
The equipment can be in the case of a single cycle of precipitation in 2000 samples per second (SPS) data rates. In 20 SP, the digital filter for noise industrial application and 50 Hz and inhibition of 60 Hz. Internal PGA provides high gain to 128 VIV. The PGA makes ADS1220 very suitable for measuring small application of sensor signals, such as resistance temperature detector (RTD) bridge sensor, thermocouple, thermal resistance, and the resistance. The device supports when using the programmable gate array (fpga) with false letter or the difference.
Measurement
The device can be configured through internal PGA, while still providing high input impedance and gain, up to 4 V allowing single-ended measurement.
In the work cycle mode, to disable the PGA, low power consumption to 120 pa. 6 or ATSSOP ADS1220 using leadless VQFN - 1-16 encapsulation, and - in a 40 'C to + 125 C temperature range specified. K type thermocouple measurements.
Features
Low current consumption: duty cycle mode and low to 120 mu (typical)
Power range: 3 V to 5 V
Effective resolution up to 20
Two difference or four single-ended input
Double match programmable current source: 10 mu A 1.5 mA
Internal 2.048 V reference: 5 PPM / ° C (typical) drift
Internal oscillator 2% accuracy
Internal temperature sensor: 0.5 ° C (typical) accuracy
SPI compatible interface (mode 1)
WARNING
