AD7685 16-bit SAR ADC
16-bit SAR ADC with pseudo-differential analog input (IN+/IN-), external reference REF, and serial interface (CNV, SCK, SDI, SDO). VIO sets the digital interface supply.
Aliase:AD7685BRMZ
MSOP-10 Top View
10 Pins
Pinout Table10
| Pin | Signal / Name | Type | Alternative Functions |
|---|---|---|---|
| 1 | REF | Analog | Reference input voltage, 0.5 V to VDD, referred to GND |
| 2 | VDD | Power | Power supply |
| 3 | IN+ | Analog | Analog input, referred to IN- |
| 4 | IN- | Analog | Analog input ground sense |
| 5 | GND | Ground | Power supply ground |
| 6 | CNV | Digital | Convert input: starts conversion, selects chain or CS mode |
| 7 | SDO | Digital | Serial data output, synchronized to SCK |
| 8 | SCK | Digital | Serial data clock input |
| 9 | SDI | Digital | Serial data input, chain mode data inputMode select: low at CNV rising edge selects chain mode, high selects CS mode |
| 10 | VIO | Power | Interface digital power, nominally matches host (1.8 V to 5 V) |