ADS131M04 4-Channel Delta-Sigma ADC
4-channel analog-to-digital converter with differential analog inputs, serial data interface (SCLK, DIN, DOUT, CS, DRDY), master clock input, and on-chip digital LDO.
Aliase:ADS131M04IPWR, ADS131M04
TSSOP-20 Top View
20 Pins
Pinout Table20
| Pin | Signal / Name | Type | Alternative Functions |
|---|---|---|---|
| 1 | AVDD | Power | Analog supply; connect 1-uF capacitor to AGND |
| 2 | AGND | Ground | Analog ground |
| 3 | AIN0P | Analog | Positive analog input 0 |
| 4 | AIN0N | Analog | Negative analog input 0 |
| 5 | AIN1N | Analog | Negative analog input 1 |
| 6 | AIN1P | Analog | Positive analog input 1 |
| 7 | AIN2P | Analog | Positive analog input 2 |
| 8 | AIN2N | Analog | Negative analog input 2 |
| 9 | AIN3N | Analog | Negative analog input 3 |
| 10 | AIN3P | Analog | Positive analog input 3 |
| 11 | SYNC/RESET | Digital | Conversion synchronization or system reset; active low |
| 12 | CS | Digital | Chip select; active low |
| 13 | DRDY | Digital | Data ready; active low |
| 14 | SCLK | Digital | Serial data clock |
| 15 | DOUT | Digital | Serial data output |
| 16 | DIN | Digital | Serial data input |
| 17 | CLKIN | Digital | Master clock input |
| 18 | CAP | Analog | Digital LDO regulator output; connect 220-nF capacitor to DGND |
| 19 | DGND | Ground | Digital ground |
| 20 | DVDD | Power | Digital I/O supply; connect 1-uF capacitor to DGND |