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General Description

The AS1542 is a 12-bit high-speed, low-power, 16-channel, successive-approximation ADC that operates from a single 2.7 to 5.25V supply. The device features high throughput rates (1Msps) and a low-noise, wide-band width track-and-hold amplifier that can handle input frequencies in excess of 1 MHz.

Key Features

Single Supply Operation with VDRIVE Function: 2.7 to 5.25V

Fast Throughput Rate: 1 Msps

Sequencer & Channel Counter

Software-Configurable Analog Input Types:

- 16-Channel Single-Ended

- 8-Channel Fully-Differential

Software-Configurable Input Range

Low Power Consumption at Max Throughput Rates:

- 10.1mW @ 1Msps (3.6V Supply)

- 18.4mW @ 1Msps (5.25V Supply)

Shutdown Mode Current: 0.5?A

Flexible Power/Serial Clock Speed Management

Wide Input Bandwidth: 71dB SNR @ 50 kHz Input Frequency

No Pipeline Delays

High Speed SPI/QSPI/Microwire/DSP Interface

TSSOP-28 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 low power-consumption requirements.