LT1993CUD-10#PBF

Overview

The LT1993CUD-10#PBF is a low distortion, low noise differential amplifier and ADC driver designed for applications from DC to 700MHz. It features a fixed gain of 20dB (10V/V) and operates on a single 5V supply with 100mA current consumption. The device includes built-in 175MHz differential lowpass filtering and an adjustable output common mode voltage via the VOCM pin. Packaged in a compact 16-lead 3x3 QFN, it supports both DC and AC-coupled operation.

Feature Summary

• Integrated 175MHz differential lowpass filter providing additional filtered outputs to reduce external component count.
• Adjustable output common mode voltage eliminates the need for output transformers or AC-coupling capacitors.
• Capable of single-ended to differential conversion and differential to single-ended conversion with minimal support circuitry.
• Designed for direct interfacing with high-speed 12-bit and 14-bit ADCs.

Applications

• Differential ADC driver for imaging and communications systems
• IF sampling receivers
• SAW filter interfacing and buffering
• Level shifting circuits

Procurement Notes

Verify that the ordering suffix #PBF confirms lead-free status as specified in the datasheet. Confirm the 'C' grade designation meets the required operating temperature range of –40°C to 85°C. Ensure the UD package type matches the PCB footprint requirements. Cross-reference the manufacturer part number LT1993CUD-10 with the specific distributor listing to ensure accuracy.

Selection Notes

Select this component when driving high-speed ADCs requiring low noise and low distortion across a wide bandwidth. The fixed 20dB gain simplifies design by removing external gain-setting resistors. Consider the internal filtering if anti-aliasing is needed without adding discrete components. Verify that the 5V single-supply operation aligns with the system power architecture.

Part Context

This component belongs to the LT1993 series of differential amplifiers manufactured by Analog Devices. It is specifically optimized for driving analog-to-digital converters in communication transceiver applications. The device utilizes a closed-loop topology with three internal amplifiers to achieve its performance characteristics.

Replacement Considerations

LT1993IUD-10#PBF