LT1920IS8#PBF

Instrumentation, Op Amps, Buffer Amps Overview

The LT1920IS8#PBF is a single resistor gain programmable, precision instrumentation amplifier manufactured by Analog Devices Inc. It operates within an industrial temperature range of -40°C to +85°C and utilizes an 8-lead plastic SO package. The device supports a wide supply voltage range from ±2.3V to ±18V with a maximum supply current of 1.3mA. Key electrical specifications include a 7.5nV/√Hz input noise voltage density at 1kHz, a 1MHz bandwidth at unity gain, and a 1.2V/μs slew rate. It features a maximum input offset voltage of 185μV, a maximum input bias current of 2nA, and a minimum common mode rejection ratio of 75dB at G=1.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Requires only one external resistor to set gains ranging from 1 to 10,000
• Laser trimmed for low input offset voltage and drift
• Capable of driving capacitive loads up to 1000pF in any gain configuration
• Inputs are ESD protected up to 13kV (human body)

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 IS8 corresponds to the industrial temperature grade (-40°C to +85°C) and the SOIC-8 package type when sourcing. Confirm that the #PBF designation indicates lead-free and RoHS compliance status as per manufacturer standards. Ensure compatibility with the required gain setting resistor values for the intended application circuit design.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component for applications requiring high precision with minimal external components. It serves as a pin-for-pin and spec-for-spec improved replacement for the AD620. Consider the LT1167 if even better guaranteed performance is required. Evaluate the trade-off between the 0.9mA typical supply current and the 7.5nV/√Hz noise density for low-power signal conditioning needs.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the LT1920 series of precision instrumentation amplifiers. It is designed as a cost-effective solution for precision instrumentation amplifier applications. The series offers laser-trimmed accuracy and superbeta processing for low input bias currents. It is widely used in industrial and data acquisition systems where small signals must be amplified accurately in the presence of large common-mode voltages.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

The LT1920 is explicitly documented as a pin-for-pin and spec-for-spec improved replacement for the AD620. For applications requiring enhanced guaranteed performance, the LT1167 is recommended as an upgraded version within the same product family.