The AS1532/AS1533 are low-power, 4/2-channel, 400/300ksps, 12-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.
The successive-approximation register (SAR), high-speed sampling, high-bandwidth track/hold circuitry, and multimode operation combine to make these devices highly-flexible and configurable.
Both devices require low supply current (2.8mA @ 400ksps, AS1532; 2.2mA @ 300ksps, AS1533) and feature a reduced-power mode and a power-down mode to lower power consumption at slower throughput rates.
The devices operate from a single supply (+4.5 to +5.5V, AS1532; +2.7 to +3.6V, AS1533). Both devices contain an internal 2.5V reference, an integrated reference buffer, and feature support for an external reference (1V to VDD).
Data accesses are made via the high-speed, 4-wire, SPI, QSPI-, and Microwire-compatible serial interface.
The devices are available in a 16-pin TSSOP package.
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.
AS1532 12-Bit, 4-CH, ADC 400ksps Block Diagram
