PCF8591T,518

PCF8591 - 8Bit A/D and D/A converter SOP 16Pin

Overview

The PCF8591 is a single-chip, single‑supply low‑power 8‑bit CMOS 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 eight devices connected to the I²C‑bus without additional hardware. Address, control and data to and from the device are transferred serially via the two-line bidirectional I²C‑bus.

The functions of the device include analog input multiplexing, on-chip track and hold function, 8-bit analog‑to‑digital conversion and an 8‑bit digital‑to‑analog conversion. The maximum conversion rate is given by the maximum speed of the I²C-bus.

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## Features

* Single power supply

* Operating supply voltage 2.5 V to 6.0 V

* Low standby current

* Serial input/output via I²C-bus

* I²C address selection by 3 hardware address pins

* Max sampling rate given by I²C-bus speed

* 4 analog inputs configurable as single ended or differential inputs

* Auto-incremented channel selection

* Analog voltage range from VSS to VDD

* On-chip track and hold circuit

* 8-bit successive approximation A/D conversion

* Multiplying DAC with one analog output.

## Target Applications

* Supply monitoring

* Reference setting

* Analog control loops

## Features