LTC2386IUH-18#PBF

Overview

The LTC2386IUH-18#PBF is an 18-bit, 10Msps successive approximation register (SAR) analog-to-digital converter manufactured by Analog Devices Inc. It operates from 5V and 2.5V supplies with a typical power dissipation of 97mW at full speed. The device features a serial LVDS digital interface supporting one-lane or two-lane output modes to minimize data lines. Key electrical specifications include a maximum integral nonlinearity (INL) of ±1.75 LSB, guaranteed 18-bit no missing codes, and a typical signal-to-noise ratio (SNR) of 95.7dB at a 1MHz input frequency. The component is housed in a 32-lead, 5mm × 5mm plastic QFN package.

Feature Summary

• 18-Bit Resolution with Guaranteed No Missing Codes
• 10Msps Throughput Rate with Zero Pipeline Delay
• Serial LVDS Interface with One-Lane/Two-Lane Modes
• Internal 2.048V Reference with ±20ppm/°C Max Temperature Coefficient

Applications

• High Speed Data Acquisition
• Imaging Systems
• Communications Equipment
• Control Loops
• Instrumentation
• Automated Test Equipment (ATE)

Procurement Notes

Verify the specific temperature grade suffix for the required operating range. The 'I' designation indicates an industrial temperature range of –40°C to 85°C. Confirm that the ordering suffix '#PBF' corresponds to the lead-free tape and reel or tube packaging format intended for the procurement channel. Ensure the source documentation matches the exact part number to avoid confusion with other resolution variants in the family.

Selection Notes

Select this component when high linearity and wide dynamic range are critical for applications requiring up to 10Msps sampling rates. The internal reference buffer simplifies design by providing a 4.096V differential input range, reducing external component count. Consider the LVDS interface requirements for board layout and termination resistors. Verify that the input signal bandwidth and amplitude fit within the specified common mode and differential voltage ranges to maintain optimal SNR and SFDR performance.

Part Context

This part belongs to the LTC2386-18 series of low-noise, high-speed SAR ADCs. The 'I' suffix denotes the industrial temperature grade variant, distinct from the commercial grade 'C' version which operates from 0°C to 70°C. The 'UH' package code identifies the 32-lead QFN form factor. Other models in the broader LTC238x family offer different throughput rates such as 5Msps or 15Msps, but share similar architectural features.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult manufacturer resources for cross-reference information regarding alternative SAR ADCs with comparable resolution and speed specifications.