AS1523-T

Analog To Digital Converters (ADC) Overview

The AS1523-T is a 10-bit, single-supply, low-power analog-to-digital converter (ADC) featuring four channels and a sampling rate of 300ksps. It utilizes a successive-approximation register (SAR) architecture with high-speed track/hold circuitry. The device operates from a +2.7V to +3.6V supply and consumes 2.2mA at full speed. It includes an internal 2.5V reference and supports external references. Data access is via a SPI/QSPI/Microwire-compatible serial interface. The component is housed in a 16-pin TSSOP package.

Analog To Digital Converters (ADC) Feature Summary

• 10-bit resolution with 300ksps sampling rate
• Single-supply operation (+2.7V to +3.6V)
• Four software-configurable analog input channels
• Internal 2.5V reference with external support capability

Analog To Digital Converters (ADC) Applications

• Remote sensors
• Data-acquisition devices
• Data-logging devices
• Pen-digitizers
• Process control systems

Analog To Digital Converters (ADC) Procurement Notes

Verify the manufacturer designation as Austriamicrosystems or ams-OSRAM USA INC. for the AS1523-T part number. Confirm the specific suffix 'T' corresponds to the tape and reel packaging format if required by assembly processes. Ensure compatibility with the +2.7V to +3.6V supply voltage range during procurement planning.

Analog To Digital Converters (ADC) Selection Notes

Select the AS1523-T over the AS1522 when operating within a lower voltage range of +2.7V to +3.6V, as the AS1522 requires +4.5V to +5.5V. Choose this model for applications requiring a 300ksps sampling rate rather than the 400ksps offered by the AS1522. Ensure the design accommodates the 16-pin TSSOP footprint and single-supply constraints.

Analog To Digital Converters (ADC) Part Context

The AS1523-T belongs to the AS1522/AS1523 family of 10-bit SAR ADCs manufactured by Austriamicrosystems (now ams-OSRAM). These devices are designed for battery-powered remote-sensor and data-acquisition applications due to their low power consumption and small form factor. The AS1523 variant specifically targets lower voltage single-supply systems compared to its AS1522 counterpart.

Analog To Digital Converters (ADC) Replacement Considerations

The AS1522 is a related device within the same family but operates on a +4.5V to +5.5V supply and offers a 400ksps sampling rate. Direct substitution requires verifying that the system voltage and timing requirements align with the AS1523's +2.7V to +3.6V range and 300ksps limit.