PCA9691 Overview
The PCA9691 is a single chip, single supply, low power, 8-bit CMOS1 data acquisition device with four analog inputs, one analog output and a serial I2C-bus interface. Three address pins (A0, A1, and A2) are used for programming the hardware address, allowing the use of up to 64 PCA9691 devices connected to the I2C-bus without additional hardware. Address, control and data to and from the PCA9691 are transferred via...
PCA9691 Key Features
- 8-bit successive approximation A/D conversion
- Four analog inputs programmable as single-ended or differential inputs
- 64 different addresses by three hardware address pins
- 1 MHz Fast-mode Plus (Fm+) I2C-bus via serial input/output
- Sampling rate given by I2C-bus frequency
- Single supply voltage; operating from 2.5 V to 5.5 V
- Low standby current
- Analog voltage from VSS to VDD
- Multiplying Digital-to-Analog Converter (DAC) with one analog output
- On-chip sample and hold circuit