LTC2383CMS-16#PBF

Overview

The LTC2383CMS-16#PBF is a 16-bit successive approximation register (SAR) analog-to-digital converter manufactured by Analog Devices Inc. It operates from a single 2.5V supply and supports a ±2.5V fully differential input range. The device delivers a throughput rate of 1Msps with no cycle latency, consuming 13mW at full speed and 13µW in power-down mode at 1ksps. Key performance metrics include a typical SNR of 92dB, ±2LSB maximum INL, and guaranteed 16-bit resolution without missing codes. It features an SPI-compatible serial interface supporting 1.8V to 5V logic levels and is housed in a 16-lead MSOP package.

Feature Summary

• 16-bit resolution with guaranteed no missing codes and ±2LSB max INL
• 1Msps sampling rate with zero pipeline delay or cycle latency
• Low power consumption: 13mW at 1Msps, scaling down to 13µW at 1ksps
• Fully differential input range of ±2.5V with external 2.5V reference requirement
• SPI-compatible serial interface with daisy-chain mode support for 1.8V–5V I/O

Applications

• Medical imaging systems
• High-speed data acquisition
• Portable or compact instrumentation
• Industrial process control
• Low power battery-operated instrumentation
• Automated test equipment (ATE)

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 commercial temperature range of 0°C to 70°C. Ensure the external reference voltage is set within the 2.4V to 2.6V range to meet specifications. Check for availability of development kits such as DC1813A-B for performance validation.

Selection Notes

Select this component when a low-power, high-speed 16-bit ADC is required with a fully differential input. Compare against the LTC2382-16 for lower speed (500ksps) or LTC2381-16 for even lower power (250ksps). Ensure the application can provide a stable external 2.5V reference, as the device does not contain an internal one. Consider the LTC2383IMS-16#PBF if operation below 0°C is necessary.

Part Context

This part belongs to the LTC238X-16 SAR ADC family, which includes variants with different speeds and power profiles. The CMS-16 suffix denotes the 16-lead plastic MSOP package with commercial temperature rating. It is distinct from the DFN package options (e.g., LTC2383CDE-16) and higher-grade industrial/extended temperature versions (I and H grades).

Replacement Considerations

Direct pin-compatible alternatives within the same family include LTC2382CMS-16#PBF (500ksps) and LTC2381CMS-16#PBF (250ksps) for reduced power requirements. For extended temperature ranges, use LTC2383IMS-16#PBF (-40°C to 85°C) or LTC2383HMS-16#PBF (-40°C to 125°C). Verify that any substitute maintains the 16-bit resolution and differential input architecture.