LT1368CN8#PBF

Instrumentation, Op Amps, Buffer Amps Overview

The LT1368CN8#PBF is a dual precision operational amplifier from Analog Devices, featuring rail-to-rail input and output capabilities. It operates within a supply range of 1.8V to 36V. Key electrical specifications include a typical input offset voltage of 150µV, a gain-bandwidth product of 160kHz, and a slew rate of 0.065V/µs. The device draws 375µA per amplifier and provides an output short-circuit current of ±30mA. It is housed in an 8-lead PDIP package and is specified for operation between 0°C and 70°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Rail-to-rail input and output operation
• Precision bipolar design with low offset voltage
• Requires 0.1µF output capacitor for stability
• Enhanced supply rejection and high-frequency performance

Instrumentation, Op Amps, Buffer Amps Applications

• Rail-to-rail buffer amplifiers
• Low voltage signal processing
• Supply current sensing at either rail
• Driving A/D converters

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm packaging type and lead finish. Ensure the component matches the required temperature range and pinout configuration for your circuit design before finalizing procurement.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this part when rail-to-rail I/O is required alongside precision DC characteristics. Note that the LT1368 requires a 0.1µF output capacitor for compensation, unlike the LT1366 which is stable without it. This requirement improves supply rejection but impacts capacitive load handling.

Instrumentation, Op Amps, Buffer Amps Part Context

The LT1368 is part of the LT1366/LT1367/LT1368/LT1369 family of dual and quad precision op amps. It shares the same pinout and general architecture as the LT1366 but differs in internal compensation to support higher supply rejection ratios through external capacitance.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

The LT1366CN8#PBF is a direct functional substitute within the same package if the 0.1µF output capacitor constraint is not acceptable or if different capacitive load stability is required.

Instrumentation, Op Amps, Buffer Amps FAQ

Why does the LT1368 require a 0.1µF output capacitor?

The LT1368 features specific compensation that requires a 0.1µF output capacitor to improve supply rejection and reduce output impedance at high frequencies.

What is the difference between LT1368 and LT1366 regarding stability?

The LT1366 is compensated for stability with capacitive loads up to 1000pF without external components, whereas the LT1368 requires a 0.1µF capacitor for proper compensation.