AS1524-BTDT

Analog To Digital Converters (ADC) Overview

The AS1524-BTDT is a low-power, 12-bit analog-to-digital converter (ADC) from 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 automatic shutdown between conversions, reducing power consumption to 200nA. It offers true-differential or pseudo-differential input configurations via a 3-wire SPI-/QSPI-/MICROWIRE-compatible serial interface. Key electrical parameters include a resolution of 12 bits, an INL of ±1.0 LSB, and a full linear bandwidth of 400 kHz. The component is housed in an 8-pin TDFN (3x3mm) package.

Analog To Digital Converters (ADC) Feature Summary

• 12-bit SAR ADC with 150ksps sampling rate
• Single-supply operation (+2.7V to +5.25V)
• Automatic shutdown mode (200nA typical)
• SPI/QSPI/MICROWIRE compatible 3-wire interface

Analog To Digital Converters (ADC) Applications

• Portable battery-powered data-acquisition systems
• Remote sensor interfaces
• Data logging devices
• Lab instruments with space limitations

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix 'BTDT' against the manufacturer's official documentation to confirm tape-and-reel quantity and packaging specifications. Ensure the source document explicitly lists this suffix variant, as standard listings may default to bulk or cut-tape options without suffix specification.

Analog To Digital Converters (ADC) Selection Notes

Select the AS1524 variant for pseudo-differential or true-differential input requirements with software-configurable unipolar/bipolar modes. Choose the AS1525 variant if two independent single-ended channels are needed. Consider the internal clock accuracy (±5%) and external reference voltage range (1.0V to VDD+50mV) when designing the signal chain.

Analog To Digital Converters (ADC) Part Context

The AS1524/AS1525 series consists of low-power, 12-bit ADCs designed for portable applications. The AS1524 provides one channel with differential capabilities, while the AS1525 offers two single-ended channels. Both share identical power management features, including fast wakeup times of 1.4µs and automatic shutdown between conversions to minimize energy usage in battery-operated devices.

Analog To Digital Converters (ADC) Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided datasheet. Verify compatibility with existing microcontroller interfaces (SPI/QSPI/MICROWIRE) and ensure voltage levels match the target system's logic standards before considering alternative components.