LTC2377IDE-18#PBF

Analog To Digital Converters (ADC) Overview

The LTC2377IDE-18#PBF is an 18-bit, 500ksps low power SAR ADC from Analog Devices. Operating from a single 2.5V supply, it features a ±VREF fully differential input range with VREF between 2.5V and 5.1V. The device achieves ±1.75LSB maximum INL, guaranteed 18-bit no missing codes, and 102dB SNR. It consumes 6.8mW at full speed and includes a digital gain compression function to simplify driver amplifier requirements. The part is housed in a 16-lead (4mm × 3mm) plastic DFN package and supports temperatures from –40°C to 85°C.

Analog To Digital Converters (ADC) Feature Summary

• 18-bit resolution with 500ksps throughput and no cycle latency
• Low power consumption of 6.8mW at 500ksps, scaling down to 6.8µW at 500sps
• Digital Gain Compression (DGC) eliminates need for negative driver supply
• SPI-compatible serial interface supporting 1.8V to 5V logic levels

Analog To Digital Converters (ADC) Applications

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

Analog To Digital Converters (ADC) Procurement Notes

Verify the ordering suffix #PBF indicates lead-free finish and tube packaging. Confirm the IDE suffix corresponds to the industrial temperature grade (-40°C to 85°C) and the DFN package type. Cross-reference the manufacturer part number with official Analog Devices documentation to ensure compatibility with specific design requirements.

Analog To Digital Converters (ADC) Selection Notes

Select this component when 18-bit accuracy and 500ksps speed are required with minimal power dissipation. The internal oscillator simplifies timing, while the DGC feature allows single-supply operation for driving amplifiers. Ensure the host interface voltage matches the OVDD range of 1.71V to 5.25V for proper logic level compatibility.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC2377-18 family of high-performance SAR ADCs. The IDE suffix specifically denotes the industrial temperature range (-40°C to 85°C) and the 16-lead DFN package variant. Other variants include CMS (commercial), IMS (industrial MSOP), and HMS (high-temp MSOP) packages.

Analog To Digital Converters (ADC) Replacement Considerations

Direct replacements within the same family include LTC2377IMS-18#PBF (MSOP package) or LTC2377HMS-18#PBF (extended temperature). For higher speed, consider the LTC2378-18 (1Msps). Verify pinout and thermal characteristics when substituting different package types.