AS1527-BSOT

Analog To Digital Converters (ADC) Overview

The AS1527-BSOT is a 10-bit, single-supply analog-to-digital converter (ADC) from ams-OSRAM USA INC. Operating on a 2.7V to 3.6V supply, it delivers a throughput rate of 73ksps with a conversion time of 7.5µs. The device features an integrated track/hold amplifier and requires an external reference voltage at the REF pin. It consumes 3mW at maximum sampling speed and includes a low-current shutdown mode drawing only 1µW. Data access utilizes a standard 3-wire serial interface compatible with SPI, QSPI, and Microwire protocols.

Analog To Digital Converters (ADC) Feature Summary

• 10-bit resolution with 73ksps sampling rate
• Single-supply operation (2.7V to 3.6V)
• Requires external reference voltage
• Low power consumption: 3mW active, 1µW shutdown

Analog To Digital Converters (ADC) Applications

• Remote sensors
• Data-acquisition systems
• Data logging devices
• Lab instruments

Analog To Digital Converters (ADC) Procurement Notes

Verify that the specific part number corresponds to the AS1527 variant requiring an external reference, distinct from the AS1526 which includes an internal reference. Confirm the package type matches the 8-pin SOIC-150 specification. Ensure the operating environment stays within the -40°C to +85°C temperature range for guaranteed performance.

Analog To Digital Converters (ADC) Selection Notes

Select the AS1527 when an external reference voltage is available or preferred over an internal one to potentially reduce power consumption compared to the AS1526. This component is suitable for space-limited applications requiring single-supply operation. Ensure the system clock supports up to 2.1MHz for optimal data transfer rates.

Analog To Digital Converters (ADC) Part Context

The AS1527 is part of the AS1526/AS1527 family of low-power, 10-bit A/D converters designed for battery-powered analog-data collection devices. While sharing identical architecture and performance metrics with the AS1526, the AS1527 distinguishes itself by omitting the internal 2.5V reference, necessitating an external reference source.

Analog To Digital Converters (ADC) Replacement Considerations

The AS1526 serves as a direct functional substitute if an internal reference is acceptable. Verify compatibility regarding the REF pin configuration, as the AS1526's internal reference is enabled by pulling SHDNN high, whereas the AS1527 uses this pin for external reference input or shutdown control.