LTC1285CS8#PBF

Analog To Digital Converters (ADC) Overview

The LTC1285CS8#PBF is a micropower, 12-bit successive approximation sampling analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It operates on a single supply voltage ranging from 2.7V to 6V and is housed in an 8-lead plastic SO package. The device features a differential analog input and typically draws 160μA of supply current during conversion at 7.5ksps. It includes an internal sample-and-hold circuit and automatically powers down to a typical leakage current of 1nA when not converting. Data transfer is handled via a synchronous serial interface compatible with SPI and Microwire protocols.

Analog To Digital Converters (ADC) Feature Summary

• Micropower consumption with automatic shutdown capability reducing standby current to 1nA
• Single-ended or differential input configuration with on-chip sample-and-hold
• Serial interface compatible with standard microprocessor communication protocols
• Operates on low voltage single supplies suitable for battery-powered applications

Analog To Digital Converters (ADC) Applications

• Pen screen digitizing systems
• Battery-operated portable devices
• Remote data acquisition nodes
• Isolated data acquisition environments
• Temperature measurement circuits

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix #PBF indicates lead-free compliance and RoHS adherence before procurement. Confirm that the CS8 variant corresponds to the 8-lead SOIC package required for your PCB layout. Ensure the component source provides valid traceability documentation consistent with Analog Devices manufacturing standards.

Analog To Digital Converters (ADC) Selection Notes

Select the LTC1285CS8#PBF when a single differential input channel is sufficient for the application design. This model is appropriate for designs requiring minimal external components due to its integrated reference and sample-and-hold functions. Consider the 12-bit resolution and 7.5ksps sampling rate against system accuracy and speed requirements.

Analog To Digital Converters (ADC) Part Context

This component belongs to the LTC1285/LTC1288 family of 3V micropower sampling ADCs. While the LTC1288 offers a two-channel multiplexer, the LTC1285 is dedicated to a single differential input. Both share identical power management features and serial interface timing characteristics within the same SO-8 footprint.

Analog To Digital Converters (ADC) Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult Analog Devices technical support for qualified alternatives if this specific package or revision is unavailable.