LTC2382CMS-16#PBF

Overview

The LTC2382CMS-16#PBF is a 16-bit, 500ksps successive approximation register (SAR) analog-to-digital converter manufactured by Analog Devices Inc. Operating from a single 2.5V supply, it features a ±2.5V fully differential input range and consumes 6.5mW at maximum throughput. The device guarantees 16-bit no missing codes with a typical SNR of 92dB and an INL of ±2LSB max. It utilizes an SPI-compatible serial interface supporting 1.8V to 5V logic levels and includes a daisy-chain mode. Packaged in a 16-lead MSOP, this component is designed for applications requiring low power consumption and high-speed data acquisition within the commercial temperature range.

Feature Summary

• 16-bit resolution with 500ksps sampling rate and 6.5mW power dissipation
• ±2.5V fully differential input range with external 2.5V reference requirement
• SPI-compatible serial interface with daisy-chain capability and 1.8V–5V I/O compatibility
• Proprietary sampling architecture providing 1.25µs extended acquisition time

Applications

• Medical imaging systems
• High-speed data acquisition
• Portable or compact instrumentation
• Industrial process control
• Low power battery-operated instrumentation

Procurement Notes

Verify the specific ordering suffix #PBF indicates lead-free finish and tube packaging for the MSOP variant. Confirm the 'C' grade designation corresponds to the 0°C to 70°C operating temperature range required for the application environment. Ensure the host system provides the necessary 2.5V analog supply and compatible digital I/O voltage levels for the OVDD pin.

Selection Notes

Select this model when a 16-bit resolution and 500ksps throughput are sufficient for the signal bandwidth. The external reference requirement necessitates budgeting for a low-noise reference source, such as the LTC6652-2.5, to maintain specified SNR performance. Consider the 1.25µs acquisition time when selecting input drivers; low-power amplifiers like the LT6350 are suitable due to the extended acquisition window provided by the proprietary sampling architecture.

Part Context

This part belongs to the LTC2382-16 family of low-power SAR ADCs. It shares architectural similarities with the LTC2383-16 (1Msps) and LTC2381-16 (250ksps), offering pin and software compatibility across the series. The CMS-16 suffix specifically denotes the commercial temperature grade housed in a 16-lead plastic MSOP package, distinguishing it from the industrial (IMS) and high-temperature (HMS) variants.

Replacement Considerations

Direct functional replacements within the same family include the LTC2383CMS-16#PBF for higher speed or LTC2381CMS-16#PBF for lower power. For different packages, the LTC2382CDE-16#PBF offers the same electrical specifications in a DFN-16 footprint.