ADS1220 24-bit 2-kSPS 4-channel delta-sigma ADC with PGA
24-bit, 2 kSPS, 4-channel delta-sigma ADC with low-noise PGA (gain up to 128), SPI interface, excitation current sources, temperature sensor and internal/external clock.
Aliase:ADS1220IPWR, ADS1220IPWT, ADS1220IRVAR, ADS1220IRVAT
TSSOP-16 Top View
16 Pins
Pinout Table16
| Pin | Signal / Name | Type | Alternative Functions |
|---|---|---|---|
| 1 | SCLK | Digital | Serial clock input |
| 2 | ~CS | Digital | Chip select, active low |
| 3 | CLK | Digital | External clock source input |
| 4 | DGND | Ground | Digital ground |
| 5 | AVSS | Power | Negative analog power supply |
| 6 | AIN3/REFN1 | Analog | Analog input 3Negative reference input 1Low-side power switch to AVSS |
| 7 | AIN2 | Analog | Analog input 2 |
| 8 | REFN0 | Analog | Negative reference input 0 |
| 9 | REFP0 | Analog | Positive reference input 0 |
| 10 | AIN1 | Analog | Analog input 1 |
| 11 | AIN0/REFP1 | Analog | Analog input 0Positive reference input 1 |
| 12 | AVDD | Power | Positive analog power supply |
| 13 | DVDD | Power | Positive digital power supply |
| 14 | ~DRDY | Digital | Data ready, active low |
| 15 | DOUT/~DRDY | Digital | Serial data outputData ready, active low |
| 16 | DIN | Digital | Serial data input |