LT6557IGN#PBF

Video Amps And Modules Overview

The LT6557IGN#PBF is a high-speed triple video amplifier featuring an internal fixed gain of 2 and programmable DC input bias voltage. It offers a –3dB small-signal bandwidth of 500MHz, a large-signal bandwidth of 400MHz at 2VP-P, and a slew rate of 2200V/µs. The device operates on a single supply ranging from 3V to 7.5V, with typical supply current of 22.5mA per amplifier. It provides full video swing with a 5V supply and can drive heavy loads to within 0.8V of the rails. Differential gain is typically 0.02% and differential phase is 0.05°. The component is housed in a 16-lead SSOP package.

Video Amps And Modules Feature Summary

• Triple video amplifiers with fixed gain of 2
• Programmable DC input bias for AC coupling
• Separate power and ground pins per channel
• Enable/shutdown control pin

Video Amps And Modules Applications

• LCD Video Projectors
• RGB HD Video Amplifiers
• Coaxial Cable Drivers
• Low Supply ADC Drivers

Video Amps And Modules Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance when sourcing. Confirm the GN package designation matches the required 16-lead SSOP form factor for your PCB layout. Ensure the temperature grade 'I' meets your operational range requirements of -40°C to 85°C. Cross-reference the manufacturer part number with authorized distributors to ensure authenticity and traceability.

Video Amps And Modules Selection Notes

Select this component for wideband video applications requiring low voltage single-supply operation. The integrated bias control simplifies AC-coupled designs by reducing external components. Separate supply pins facilitate effective bypassing and minimize crosstalk between channels. Consider thermal management if operating near maximum supply voltages or temperatures.

Video Amps And Modules Part Context

This part belongs to the LT6557 series of high-speed video amplifiers designed for demanding signal processing tasks. It complements other members like the LT6553 and LT6555 which offer similar performance but may differ in gain or multiplexing capabilities. The series targets professional video equipment where signal integrity and speed are critical.

Video Amps And Modules Replacement Considerations

LT6558: Similar performance with gain of 1 instead of 2.

Video Amps And Modules FAQ

How is the input bias voltage programmed?

A resistor connected between Pin 16 (BCV) and Pin 2 (GND) generates the DC bias voltage for all three amplifier inputs.

What happens if the EN pin is left unconnected?

An internal pull-up resistor activates, placing the device into shutdown mode with reduced power consumption.