LT1167IS8-1#PBF

Instrumentation, Op Amps, Buffer Amps Overview

The LT1167IS8-1#PBF is a precision instrumentation amplifier in an 8-lead SOIC package. It features a gain range of 1 to 10,000 set by a single external resistor. Key electrical parameters include a maximum input offset voltage of 100μV and drift of 0.4μV/°C. The device operates on supplies from ±2.3V to ±18V with a typical supply current of 1.1mA. It offers a bandwidth of 1MHz at unity gain, a slew rate of 0.55V/μs, and a common mode rejection ratio up to 133dB.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Single external resistor sets gain from 1 to 10,000
• Laser trimmed for low input offset voltage and drift
• Superbeta processing ensures picoampere input bias currents
• High ESD protection with IEC 1000-4-2 Level 4 compliance

Instrumentation, Op Amps, Buffer Amps Applications

• Bridge amplifiers
• Strain gauge amplifiers
• Thermocouple amplifiers
• Differential to single-ended converters
• Medical instrumentation

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix '-1' indicates high common-mode input current characteristics suitable for high impedance sources. Confirm the 'I' grade designation matches the required -40°C to 85°C operating temperature range. Ensure the '#PBF' suffix corresponds to lead-free packaging specifications before finalizing procurement orders.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when high accuracy and low power consumption are critical. The -1 variant supports applications requiring superior input current performance at high common-mode voltages. Verify that the required gain setting resistor tolerance aligns with the specified gain error limits. Consider the 8-lead SOIC package constraints for PCB layout and thermal management.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the LT1167 family of precision instrumentation amplifiers. It replaces older monolithic solutions and discrete multi-op amp designs. The device integrates laser-trimmed internal resistors to achieve high CMRR and PSRR without external matching components. It is designed for applications demanding high DC precision and stability over wide temperature ranges.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

LT1167IS8#PBF

Instrumentation, Op Amps, Buffer Amps FAQ

What is the function of the '-1' suffix in the part number?

The '-1' suffix designates a version with improved input current characteristics at high common-mode voltages, supporting high input impedance applications.

How is the gain of the LT1167 determined?

Gain is set by a single external resistor connected between pins 1 and 8, following the formula G = (49.4kΩ / RG) + 1.