LT1399IGN#PBF

Instrumentation, Op Amps, Buffer Amps Overview

The LT1399IGN#PBF is a triple, low-cost, 300MHz current feedback amplifier with shutdown. It operates on supplies from 4V to –6V (total 10V). Each amplifier draws 4.6mA when active and zero supply current when disabled. Key electrical parameters include a slew rate of 800V/ms, an output current capability of 80mA, and a typical input offset voltage of 1.5mV. The device features fast turn-on (30ns) and turn-off (40ns) times.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Triple independent amplifiers with individual enable pins for zero-power shutdown
• High-speed 300MHz bandwidth with 800V/ms slew rate
• Low power consumption with 4.6mA per amplifier active draw
• Fast switching response suitable for multiplexing applications

Instrumentation, Op Amps, Buffer Amps Applications

• RGB cable drivers
• LCD drivers
• Spread spectrum amplifiers
• MUX amplifiers
• Composite video cable drivers

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific package marking and temperature grade against the datasheet. Confirm that the operating supply range meets the system requirements of 4V to –6V total. Ensure proper grounding of the internal ground pins is implemented for optimal channel isolation.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component for high-speed video signal processing where low cost and individual channel control are required. Consider the LT1399HV if higher negative supply voltages up to –7.5V are needed. Verify feedback resistor values to maintain stability with capacitive loads.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the LT1398/LT1399 family of current feedback amplifiers manufactured by Analog Devices. It serves as a pin-for-pin upgrade to the LT1260, optimized for –5V/–7.5V supplies. The IGN suffix indicates an industrial temperature range version in a 16-lead SSOP package.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

LT1399CGN#PBF

Instrumentation, Op Amps, Buffer Amps FAQ

How does the shutdown feature function?

Each amplifier has a dedicated EN pin. Driving the EN pin logic high disables the amplifier, resulting in zero supply current and a high-impedance output state.

What is the maximum differential input voltage?

The absolute maximum differential input voltage is limited to –5V to prevent breakdown of the input transistors.