AS1532-T

Analog To Digital Converters (ADC) Overview

The AS1532-T is a 12-bit, low-power analog-to-digital converter (ADC) featuring four single-ended or differential input channels. It operates from a single +4.5V to +5.5V supply and delivers a sampling rate of 400ksps with a typical supply current of 2.8mA. The device utilizes a successive-approximation register (SAR) architecture and includes an internal 2.5V reference. Data access is facilitated via a high-speed, 4-wire SPI, QSPI-, and Microwire-compatible serial interface. It is housed in a 16-pin TSSOP package.

Analog To Digital Converters (ADC) Feature Summary

• 12-bit resolution with 400ksps sampling rate
• Single-supply operation (+4.5V to +5.5V)
• Software-configurable analog input types (single-ended, pseudo-differential, fully differential)
• Integrated 2.5V reference with external reference support

Analog To Digital Converters (ADC) Applications

• Battery-powered remote sensors
• Data-acquisition systems
• Data-logging devices
• Pen-digitizers
• Process control applications

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'T' against the manufacturer's official documentation to confirm packaging configuration, such as tape and reel quantities. Ensure the voltage range matches the AS1532 specification (+4.5V to +5.5V) rather than the AS1533 variant. Confirm the 16-pin TSSOP package type aligns with board layout requirements.

Analog To Digital Converters (ADC) Selection Notes

Select the AS1532-T for applications requiring a higher supply voltage range (+4.5V to +5.5V) compared to the AS1533 (+2.7V to +3.6V). Both variants share identical pinouts and functional features, including the 400ksps sampling rate and 12-bit resolution. Consider the power consumption profile, which drops to 0.4mA in reduced-power mode and 0.5µA in full power-down mode.

Analog To Digital Converters (ADC) Part Context

The AS1532-T belongs to the AS1532/AS1533 family of 12-bit A/D converters designed for low-power, space-limited applications. These devices are characterized by superior AC performance, very low power consumption, and highly reliable packaging. They are specifically engineered to operate with single-supply devices, making them suitable for portable and battery-operated electronics.

Analog To Digital Converters (ADC) Replacement Considerations

The AS1533 is a direct functional substitute within the same package, differing only in the operating voltage range (+2.7V to +3.6V vs. +4.5V to +5.5V). Verify that the system supply voltage falls within the replacement part's specified limits before swapping.