LT6557CDHC#TRPBF

Video Amps And Modules Overview

The LT6557CDHC#TRPBF is a high-speed triple video amplifier featuring an internal fixed gain of 2 and programmable DC input bias voltage. It operates on a single supply ranging from 3V to 7.5V, with a typical operating voltage of 5V. Key electrical specifications include 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 provides full video swing output, driving loads to within 0.8V of the supply rails. Each channel delivers a high output current of ±100mA. The unit 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 per channel
• Enable/shutdown control pin for power management

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 #TRPBF indicates lead-free tape and reel packaging. Confirm the 'C' grade designation corresponds to the specified operating temperature range of –40°C to 85°C. Ensure the DHC package variant matches the required PCB footprint dimensions for the 16-lead plastic DFN housing.

Video Amps And Modules Selection Notes

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

Video Amps And Modules Part Context

This part belongs to the LT6557 family of high-speed triple video amplifiers. It is designed for low-voltage, single-supply operation. The family includes variants with different gains and multiplexer functions. The DHC package offers a compact form factor suitable for space-constrained PCB layouts.

Video Amps And Modules Replacement Considerations

LT6558IDHC#TRPBF: Gain of 1 version with similar speed.

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 no-signal amplifier input bias condition.

What is the function of the EN pin?

The Enable pin controls the shutdown mode. Pulling it low enables the device, while leaving it open activates shutdown, reducing supply current to approximately 10µA.