PCA9691 is a single-chip, single-supply, low-voltage 8-bit CMOS data acquisition device
The PCA9691 is a single‑chip, single‑supply, low‑voltage 8‑bit CMOS data‑acquisition device. It provides four programmable analog inputs (single‑ended or differential) and one analog output, and communicates via a PC‑bus interface with three address pins allowing up to 64 devices on the same bus.
The device is offered in two compact packages, HVQFN16 (4 × 4 × 0.8 mm) and TSSOP16, with a 1 MHz fast‑mode operation and a supply range of Vss ~ Vpp. Ordering information, pin assignments and functional block diagrams are included in the manual. This manual is written in Chinese.
| ADC resolution | 8‑bit |
|---|---|
| DAC resolution | 8‑bit |
| Analog inputs | 4 |
| Analog outputs | 1 |
| Supply voltage range | Vss ~ Vpp |
| Package types | HVQFN16, TSSOP16 |
| Package types | HVQFN16, TSSOP16 |
| Fast‑mode speed | 1 MHz |
It provides four analog inputs.
Up to 64 devices can be connected on a single PC bus.
The device is offered in HVQFN16 and TSSOP16 packages.
The supply voltage range is Vss to Vpp.