LT6350CDD#PBF

Overview

The LT6350CDD#PBF is a low noise single-ended to differential converter and ADC driver manufactured by Analog Devices Inc. It features rail-to-rail input and output capabilities, supporting operation from a 2.7V to 12V supply. The device provides a gain-bandwidth product of 33MHz and a slew rate of 48V/µs. Key electrical parameters include an input-referred voltage noise density of 1.9nV/√Hz, a maximum input offset voltage of ±400µV, and a supply current of 4.8mA at 5V. It operates within a temperature range of 0°C to 70°C and is housed in an 8-lead 3mm x 3mm DFN package.

Feature Summary

• Converts high or low impedance single-ended signals into balanced differential outputs for driving SAR ADCs
• Features very low noise op amps capable of supporting SNR greater than 110dB in a 1MHz bandwidth
• Input op amp is trimmed for constant low input-referred voltage offset across the input range
• Includes a low power shutdown mode consuming only 60µA

Applications

• 16-bit and 18-bit SAR ADC drivers
• Single-ended to differential conversion
• Differential line driver

Procurement Notes

Verify that the specific suffix #PBF corresponds to the lead-free finish and tape and reel packaging configuration as listed in the ordering information. Confirm the C grade designation matches the required 0°C to 70°C operating temperature range for your application environment. Ensure the 8-lead DFN package dimensions align with your PCB footprint requirements before finalizing procurement.

Selection Notes

Select this component when a low noise, fast settling amplifier is needed to drive high-performance differential ADCs. The internal resistor network eliminates the need for external gain resistors in standard configurations. Consider the 33MHz bandwidth and 48V/µs slew rate for applications requiring wide dynamic range and rapid signal transitions without significant distortion.

Part Context

This part belongs to the LT6350 series of single-ended to differential converters. Other variants in the family include the LT6350IDD and LT6350HDD, which offer extended industrial and high-temperature ranges respectively. The series also includes MSOP package options such as the LT6350CMS8. All variants share the same core functionality but differ in temperature specifications and physical packaging.

Replacement Considerations

Direct substitutes within the same family include LT6350IDD#PBF for -40°C to 85°C operation and LT6350HDD#PBF for -40°C to 125°C operation. These parts maintain identical pinouts and electrical characteristics but cover wider temperature ranges.