LT1101ISW#PBF

Instrumentation, Op Amps, Buffer Amps Overview

The LT1101ISW#PBF is a micropower, single supply instrumentation amplifier manufactured by Analog Devices Inc. in an SW (16-lead plastic SOIC) package. It features fixed internal gains of 10 or 100 selectable via pin connections. Key electrical specifications include a maximum gain error of 0.075% at G=100 and 0.060% at G=10. The device operates with a supply current of up to 120µA and supports dual supplies up to ±22V or single supplies down to 1.8V. Input offset voltage is typically 160µV with a drift of 0.4µV/°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• First micropower instrumentation amplifier featuring fixed internal gains of 10 and 100 without external resistors
• Capable of single-supply operation with input and output voltages swinging within millivolts of ground
• High precision performance including low offset voltage drift and high common mode rejection ratio
• Robust input protection allowing differential input voltages up to ±36V without damage

Instrumentation, Op Amps, Buffer Amps Applications

• Differential signal amplification in the presence of common mode voltage
• Micropower bridge transducer amplification for thermocouples, strain gauges, and thermistors
• Differential voltage-to-current conversion
• Transformer coupled amplification circuits
• 4mA to 20mA bridge transmitter loops

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix ISW corresponds to the 16-lead plastic small outline package variant. Confirm that the ordering code includes the #PBF designation to ensure compliance with lead-free manufacturing standards. Cross-reference the manufacturer part number against official Analog Devices documentation to validate availability and revision status before procurement.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when a fixed gain configuration is required to minimize external component count and board space. It is suitable for applications demanding low power consumption from battery sources while maintaining high accuracy. Ensure the operating temperature range aligns with the I-grade specification limits. Consider the package dimensions if surface mount assembly is preferred over through-hole options.

Instrumentation, Op Amps, Buffer Amps Part Context

The LT1101 series represents a milestone as the first instrumentation amplifier to combine micropower operation with fixed gain capabilities in compact packages. The ISW variant specifically denotes the industrial temperature grade version housed in a wide 16-lead plastic SOIC package. This family allows designers to achieve precise signal conditioning without the need for external gain-setting resistors, simplifying circuit design.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Consult Analog Devices marketing for parts specified with wider operating temperature ranges. The N8 package is listed as an alternate source option for equivalent functionality.