LTC6401IUD-14#TRPBF

Overview

The LTC6401IUD-14#TRPBF is a high-speed differential amplifier designed for processing signals from DC to 140MHz. It features a fixed gain of 5V/V (14dB) and a –3dB bandwidth of 2GHz. The device operates on a single supply voltage ranging from 2.85V to 3.5V with a typical supply current of 45mA. 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 14dB (5V/V) with low noise and low distortion characteristics optimized for driving high-resolution ADCs.
• Adjustable output common mode voltage via the VOCM pin, eliminating the need for external transformers or AC-coupling capacitors in many applications.
• Differential inputs and outputs with integrated filtering options at the +OUTF/–OUTF pins for simplified circuit design.

Applications

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

Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing. Confirm the 'I' grade designation matches the required operating temperature range of –40°C to 85°C for your application environment. Ensure the ordering information aligns with the manufacturer's current production status and lead time requirements.

Selection Notes

Select this part when a fixed 14dB gain is required for broadband signal conditioning up to 140MHz. Consider the 200Ω differential input impedance for source matching needs. Evaluate the 45mA supply current against power constraints. Compare linearity metrics like OIP3 against system dynamic range requirements at target frequencies.

Part Context

This component belongs to the LTC6401 family of high-speed differential amplifiers. It shares pin compatibility with the LTC6400 series but offers lower supply current at the expense of slightly higher distortion at very high frequencies. The IUD-14 variant specifically targets applications requiring a fixed 14dB gain within the industrial temperature range.

Replacement Considerations

LTC6401CUD-14#TRPBF: Commercial grade version with 0°C to 70°C operating range. LTC6400IUD-14#TRPBF: Pin-compatible alternative with lower distortion but higher supply current.