LT1057CN8#PBF

Instrumentation, Op Amps, Buffer Amps Overview

The LT1057CN8#PBF is a dual JFET input precision high-speed operational amplifier in an 8-lead PDIP package. It features a 5 MHz gain-bandwidth product and a 14 V/µs slew rate. Key electrical specifications include a maximum input offset voltage of 450 µV, 98 dB common mode rejection ratio, and 20 mA output current per channel. The device operates on supply voltages from 8 V to 40 V with a typical quiescent current of 1.6 mA per amplifier.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Combines high speed performance with precision DC characteristics for instrumentation applications
• Features JFET inputs providing low bias current and high input impedance
• Includes phase reversal protection circuitry to prevent output lock-up during overdrive conditions

Instrumentation, Op Amps, Buffer Amps Applications

• Precision high-speed instrumentation amplifiers
• Fast precision sample-and-hold circuits
• Photodiode amplifiers requiring low noise and high impedance
• Logarithmic amplifiers and D/A output buffers

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance and RoHS adherence before procurement. Confirm the N8 package designation matches the required through-hole mounting footprint. Ensure the operating temperature range aligns with the commercial grade specifications defined for this part variant.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when both high bandwidth and low input bias current are required simultaneously. It serves as a direct pin-compatible upgrade for older bipolar and JFET dual op amps like the LF412A. Consider the trade-off between its superior speed and slightly higher offset voltage compared to pure bipolar precision amplifiers.

Instrumentation, Op Amps, Buffer Amps Part Context

This device belongs to the LT1057/LT1057 family of matched dual and quad JFET input operational amplifiers. It is designed to replace popular industry-standard dual op amps while offering improved speed and precision. The CN8#PBF variant specifically denotes the plastic dual in-line package configuration suitable for general-purpose prototyping and manufacturing.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

LT1057ACN8#PBF

Instrumentation, Op Amps, Buffer Amps FAQ

Does the LT1057CN8#PBF exhibit phase reversal?

No, the LT1057 includes a unique phase reversal protection circuit that prevents output lock-up even when the negative common mode limit is exceeded.

What is the input type for this amplifier?

The LT1057 utilizes JFET inputs, which provide very low input bias current and high input impedance.