LT6558CDHC#TRPBF

Video Amps And Modules Overview

The LT6558CDHC#TRPBF is a high-speed triple video amplifier featuring an internal fixed gain of 1 and programmable DC input bias voltage. It operates on a single supply ranging from 3V to 7.5V, with a typical operating current of 22.5mA per channel. The device provides a –3dB small-signal bandwidth of 550MHz and a large-signal bandwidth of 400MHz at 2VP-P output. Key electrical parameters include a slew rate of 2200V/µs, differential gain of 0.02%, and differential phase of 0.02°. It supports full video swing with a 5V supply and offers high output current capability of ±90mA.

Video Amps And Modules Feature Summary

• Features separate power supply and ground pins for each amplifier channel to improve channel separation and simplify power supply bypassing.
• Includes a unique ability to drive heavy output loads while swinging to within 0.8V of the supply rails, enabling full video swing on a single 5V supply.
• Allows all three amplifier inputs to be programmed to a common voltage level using a single resistor, reducing external circuitry requirements in AC-coupled applications.

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 specific suffix #TRPBF confirms tape and reel packaging and lead-free compliance as indicated by Analog Devices ordering options. Ensure the DHC package variant matches the required footprint dimensions of 5mm x 3mm. Confirm the temperature grade corresponds to the specified operating range of –40°C to 85°C for the C-grade device.

Video Amps And Modules Selection Notes

Select this component when a single-supply, triple-channel video amplifier with high slew rate and wide bandwidth is required. The fixed gain of 1 eliminates the need for external feedback resistors. Consider the DFN package for thermal management if junction temperature limits are critical, noting the lower maximum junction temperature compared to the SSOP variant.

Video Amps And Modules Part Context

This part belongs to the LT6558 family of high-speed video amplifiers designed for wideband video applications. It is distinct from related parts like the LT6553 or LT6557 which may offer different gains or multiplexing capabilities. The CDHC#TRPBF designation specifies the commercial temperature grade, DFN-16 package, and tape-and-reel delivery format.

Video Amps And Modules Replacement Considerations

LT6558CDHC#PBF (Tube version)

Video Amps And Modules FAQ

How is the input bias voltage controlled?

A programming resistor connected between the BCV pin (Pin 16) and GND establishes the nominal input bias voltage. Leaving Pin 16 open disables the internal bias circuit.

What is the function of the EN pin?

The EN pin controls the shutdown mode. Pulling it low enables the device, while leaving it open activates shutdown via an internal pull-up resistor, reducing supply current to approximately 10µA.