LT6557IDHC#PBF

Video Amps And Modules Overview

The LT6557IDHC#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 a typical operating current of 22.5mA per channel. It provides full video swing output when powered by a standard 5V supply and can drive heavy loads to within 0.8V of the supply rails. The component is housed in a 16-lead 5mm × 3mm DFN package.

Video Amps And Modules Feature Summary

• Triple video amplifiers with internal fixed gain of 2
• Programmable DC input bias for AC-coupled applications
• Separate power supply and ground pins for each amplifier
• Enable/shutdown pin for low-power control

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 that the ordering suffix #PBF confirms lead-free status and tube packaging. Confirm the IDHC suffix corresponds to the industrial temperature grade (-40°C to 85°C) and the 16-lead DFN package. Ensure compatibility with the required PCB footprint for the 5mm x 3mm plastic DFN outline.

Video Amps And Modules Selection Notes

Select this part for wideband video applications requiring a single 5V supply. The separate ground and supply pins minimize crosstalk between channels. Use the programmable bias feature to simplify AC coupling designs. Consider thermal management requirements due to the high slew rate and operating current.

Video Amps And Modules Part Context

The LT6557 series includes variants like the LT6558 (Gain of 1) and LT6553 (650MHz). The IDHC suffix indicates the industrial temperature range and DFN package. Related parts include the LT6555 multiplexer and LT6556 high slew rate amplifier.

Video Amps And Modules Replacement Considerations

LT6558IDHC#PBF (Gain of 1)

Video Amps And Modules FAQ

How is the input bias voltage programmed?

A resistor connected between Pin 16 (BCV) and Pin 2 (GND) establishes the nominal input bias voltage.

What is the function of the EN pin?

The EN pin enables or disables the device. Pulling it low enables the amplifiers, while leaving it open activates shutdown mode.