General Description

The AS1522/AS1523 are low-power, 4/2-channel, 400/300ksps, 10-bit analog-to-digital (A/D) converters specifically designed to operate with single-supply devices. Superior AC characteristics, very low power consumption, and highly-reliable packaging make these ultra small devices perfect for battery-powered remote-sensor and data-acquisition devices.

Key Features

Single-Supply Operation:

- +4.5 to +5.5V (AS1522)

- +2.7 to +3.6V (AS1523)

Sampling Rate:

- 400ksps (AS1522)

- 300ksps (AS1523)

Software-Configurable Analog Input Types:

- 4-Channel Single-Ended

- 4-Channel Pseudo Differential Referenced to COM

- 2-Channel Pseudo Differential

- 2-Channel Fully Differential

Software-Configurable Input Range

Internal +2.5V Reference

Low-Current Operation:

- 2.8mA @ 400ksps (AS1522)

- 2.2mA @ 300ksps (AS1523)

- 0.4mA in Reduced-Power Mode

- 0.5µA in Full Power-Down Mode

SPI/QSPI/Microwire/TMS320-Compatible

16-pin TSSOP Package

Applications

The devices are ideal for remote sensors, data-acquisition and data-logging devices, pen-digitizers, process control, or any other space-limited A/D application with ow power-consumption requirements.