LT1397CS#PBF

Instrumentation, Op Amps, Buffer Amps Overview

The LT1397CS#PBF is a quad 400MHz current feedback amplifier manufactured by Analog Devices Inc. in a 14-lead plastic SO package. It features an 800V/µs slew rate and drives up to 80mA of output current. The device operates on supplies ranging from ±2V (4V total) to ±6V (12V total), drawing 4.6mA per amplifier at ±5V. Key electrical specifications include a typical input offset voltage of 1mV, a common mode rejection ratio of 52dB, and a power supply rejection ratio of 70dB.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Quad channel configuration with high-speed current feedback architecture
• Capable of driving significant output currents for demanding loads
• Operates efficiently across wide single or split supply voltage ranges

Instrumentation, Op Amps, Buffer Amps Applications

• Cable Drivers
• Video Amplifiers
• MUX Amplifiers
• High Speed Portable Equipment
• IF Amplifiers

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific ordering suffix matches the required lead-free finish and tape/reel packaging format. Confirm that the component grade corresponds to the specified commercial temperature range of 0°C to 70°C. Ensure the 14-lead SO package dimensions align with your PCB footprint requirements before finalizing procurement orders.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when a quad channel solution is required for high-frequency signal processing. The current feedback topology offers bandwidth independence from gain, suitable for video and IF applications. Verify that the external feedback resistor values are chosen correctly to maintain stability and achieve the desired bandwidth targets.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the LT1395/LT1396/LT1397 family of 400MHz current feedback amplifiers. While the LT1395 is single-channel and the LT1396 is dual-channel, the LT1397 provides four independent amplifiers in one package. All variants share identical electrical characteristics and pinout conventions for their respective channel counts.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

LT1397CGN#PBF

Instrumentation, Op Amps, Buffer Amps FAQ

What is the maximum differential input voltage allowed?

The differential input swing must be limited to ±5V to avoid breakdown conditions on the input transistors.

How does the slew rate vary with gain configuration?

Unlike voltage feedback op amps, the slew rate is not independent of gain. For gains less than 2 in noninverting mode, the overall slew rate is limited by the input stage, while higher gains are limited by the output stage.