LTC6401IUD-20#TRPBF

Overview

The LTC6401IUD-20#TRPBF is a high-speed differential amplifier designed for processing signals from DC to 140MHz. It features a fixed gain of 20dB (10V/V) and a –3dB bandwidth of 1.3GHz. The device operates on a supply voltage ranging from 2.85V to 3.5V with a typical supply current of 50mA. It includes an adjustable output common mode voltage control pin, allowing direct interfacing with ADCs without external transformers or AC-coupling capacitors. The component is housed in a compact 16-lead 3mm × 3mm QFN package.

Feature Summary

• Fixed internal gain of 20dB with low noise and low distortion characteristics optimized for driving high-resolution ADCs.
• Integrated output common mode voltage control allows flexible biasing and eliminates the need for external coupling components.
• Differential inputs and outputs provide inherent rejection of common-mode noise and interference.

Applications

• Differential ADC Driver
• IF Sampling Receivers
• Single Ended to Differential Conversion

Procurement Notes

Verify the specific suffix 'IUD' indicates the industrial temperature range (-40°C to 85°C) and '#TRPBF' denotes tape and reel packaging with lead-free finish. Confirm that the part number matches the exact datasheet revision required for your design. Ensure compatibility with the 16-lead QFN footprint during PCB layout. Check for any discontinuance notifications or lifecycle status updates from Analog Devices before finalizing procurement plans.

Selection Notes

Select this component when a fixed 20dB gain is required for IF signal processing up to 140MHz. Consider the 1.3GHz bandwidth if higher frequency operation is anticipated. Evaluate the 50mA supply current against power constraints. Compare with the LTC6400 family if lower distortion is prioritized over power consumption. Ensure the input impedance matching requirements align with the source circuitry.

Part Context

This part belongs to the LTC6401 family of high-speed differential amplifiers. It shares the same physical package and basic functionality as other gain variants within the series, such as the LTC6401-8 or LTC6401-14. The primary distinction lies in the fixed internal gain setting. It serves as a bridge between analog front-end stages and digital conversion systems.

Replacement Considerations

LTC6401CUD-20#TRPBF