AS1524-BTDR

Analog To Digital Converters (ADC) Overview

The AS1524-BTDR is a low-power, 12-bit analog-to-digital converter (ADC) manufactured by ams-OSRAM USA INC. It features a successive-approximation register (SAR) architecture and operates on a single +2.7V to +5.25V supply. The device supports a maximum sampling rate of 150ksps with an internal conversion clock. Key electrical parameters include a typical supply current of 350µA at 150ksps and 2.5µA at 1ksps, with automatic shutdown reducing consumption to 200nA. It utilizes a 3-wire SPI-/QSPI-/MICROWIRE-compatible serial interface for data access.

Analog To Digital Converters (ADC) Feature Summary

• 12-bit resolution with 150ksps sampling rate
• Single-supply operation (+2.7V to +5.25V)
• Automatic shutdown mode (200nA standby current)
• Fast wakeup time of 1.4µs
• 3-wire SPI/QSPI/MICROWIRE compatible interface

Analog To Digital Converters (ADC) Applications

• Portable battery-powered data-acquisition systems
• Remote sensor interfaces
• Data logging devices
• Laboratory instruments

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'BTDR' against official manufacturer documentation to confirm packaging details such as tape-and-reel specifications or moisture sensitivity level. Ensure compatibility with the standard AS1524 pinout and electrical characteristics defined in the datasheet before procurement.

Analog To Digital Converters (ADC) Selection Notes

Select the AS1524 variant for pseudo/true-differential input configurations requiring software-configurable unipolar or bipolar conversion modes. Choose this component when space constraints require an 8-pin TDFN package and low power consumption is critical for battery-operated applications.

Analog To Digital Converters (ADC) Part Context

The AS1524 is part of the AS1524/AS1525 family from ams-OSRAM (formerly austriamicrosystems). This series includes the AS1525, which offers two single-ended channels instead of the AS1524's differential capability. Both share identical power profiles and interface protocols.

Analog To Digital Converters (ADC) Replacement Considerations

Direct functional replacements within the same package and specification range should be sourced from the manufacturer's active portfolio. Verify that any substitute maintains the 12-bit resolution, 150ksps speed, and 8-pin TDFN form factor.

Analog To Digital Converters (ADC) FAQ

What is the maximum serial clock frequency supported?

The maximum serial clock frequency (fSCLK) is 8 MHz.

How does the device handle power consumption between conversions?

The device enters an automatic shutdown mode between conversions, drawing only 200nA of current.

What is the input common mode range for the analog inputs?

The input common mode range extends from GND to VDD.