LT1227CN8#PBF

Video Amps And Modules Overview

The LT1227CN8#PBF is a single-channel current feedback amplifier manufactured by Analog Devices Inc. It features a 140MHz small-signal bandwidth and an 1100V/ms slew rate. The device provides a 30mA output drive current and operates on supply voltages ranging from -2V to -15V with a typical supply current of 10mA. Key electrical parameters include a 72dB large-signal voltage gain, 62dB common mode rejection ratio, and 3mV input offset voltage. It includes a shutdown feature reducing supply current to less than 250µA.

Video Amps And Modules Feature Summary

• High-speed video performance with low differential gain and phase distortion
• Integrated shutdown mode for high impedance isolation and power reduction
• Wide supply voltage range supporting split or single supply configurations
• Industry standard pinout compatible with legacy designs

Video Amps And Modules Applications

• Video cable drivers
• RGB amplifiers
• Test equipment amplifiers
• Buffers for driving mixers

Video Amps And Modules Procurement Notes

Verify the specific package type N8 (PDIP-8) against schematic footprints. Confirm that the negative supply polarity matches the datasheet requirements (-2V to -15V). Ensure logic levels for the shutdown pin interface are compatible with open collector/drain outputs referenced to the positive supply rail.

Video Amps And Modules Selection Notes

Select this component when high bandwidth stability across varying gains is required. The current feedback architecture maintains bandwidth independent of closed-loop gain settings up to approximately 1GHz GBW. Consider the shutdown capability if system-level multiplexing or power management is necessary. Verify thermal dissipation requirements for the PDIP package under maximum load conditions.

Video Amps And Modules Part Context

This part belongs to the LT1227 series of high-speed video amplifiers. It serves as a single-channel solution within a family that includes dual and quad variants like the LT1229 and LT1230. Manufactured on a proprietary complementary bipolar process, it offers an upgrade path for older video amplifier designs requiring improved linearity and speed.

Video Amps And Modules Replacement Considerations

LT1229CS8#PBF

Video Amps And Modules FAQ

How does the shutdown pin function?

Pulling Pin 8 to ground via open drain/collector logic activates shutdown, reducing supply current below 250µA and providing 70dB isolation at 10MHz.

What is the recommended feedback resistor value?

A 1kΩ feedback resistor is typically used to achieve optimal bandwidth and stability characteristics specified in the performance curves.