LT1058CN#PBF

Instrumentation, Op Amps, Buffer Amps Overview

The LT1058CN#PBF is a quad JFET input precision high-speed operational amplifier in a 14-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 600 µV, a typical input bias current of 75 pA at 70°C, and an input noise voltage density of 13 nV/√Hz at 1 kHz. The device operates with supply voltages up to ±20 V and supports an operating temperature range from 0°C to +70°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• JFET input architecture providing low input bias current and high input impedance
• Phase reversal protection circuit prevents output lock-up when negative common-mode limits are exceeded
• Low offset voltage and drift characteristics suitable for precision instrumentation applications

Instrumentation, Op Amps, Buffer Amps Applications

• Precision, high-speed instrumentation amplifiers
• Fast, precision sample-and-hold circuits
• Photodiode amplifiers
• Logarithmic amplifiers
• Voltage-to-frequency converters

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific ordering suffix #PBF indicates lead-free compliance and RoHS adherence as defined by Analog Devices. Confirm that the CN designation corresponds to the commercial temperature grade (0°C to +70°C) and the N14 plastic DIP package format. Ensure compatibility with existing PCB footprints for 14-lead through-hole mounting before procurement.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component for designs requiring the combination of high speed and DC precision in a quad configuration. It serves as a direct pin-compatible replacement for older JFET dual and quad op amps like the LF412A and OP-215. Consider the phase reversal protection feature if inputs may exceed the negative rail during operation.

Instrumentation, Op Amps, Buffer Amps Part Context

The LT1058 is part of the LT1057/LT1058 family of dual and quad JFET input precision high-speed op amps. While the LT1057 provides a matched dual channel in an 8-pin package, the LT1058 integrates four channels in a standard 14-pin configuration. This integration allows for significant reductions in board space, power dissipation, and cost compared to using four separate single op amps.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

LT1058C

Instrumentation, Op Amps, Buffer Amps FAQ

Does the LT1058 exhibit phase reversal?

No, the LT1058 includes a unique phase reversal protection circuit that prevents output lock-up even when the negative common-mode limit at the input is exceeded.

What is the input bias current specification?

The input bias current is typically 75 pA at 70°C for the LT1058C grade, ensuring minimal loading on high-impedance signal sources.