LT1793IS8#TRPBF

Instrumentation, Op Amps, Buffer Amps Overview

The LT1793IS8#TRPBF is a single-channel, low noise operational amplifier manufactured by Analog Devices Inc. It features JFET input technology with picoampere bias current characteristics. Key electrical parameters include a gain-bandwidth product of 4.2 MHz and a slew rate of 3.4 V/µs. The device operates within a supply voltage range of ±5V to ±20V and supports an operating temperature range from -40°C to +85°C. It is housed in an 8-lead plastic SOIC (S8) package.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Extremely low input bias current maintained over the entire common mode range
• Unconditionally stable for gains of 1 or more, even with capacitive loads
• Very low input capacitance ensuring high gain linearity
• Eliminates phase reversal when input exceeds common mode range

Instrumentation, Op Amps, Buffer Amps Applications

• Photocurrent amplifiers
• Hydrophone amplifiers
• High sensitivity piezoelectric accelerometers
• Low voltage and current noise instrumentation amplifier front ends
• Active filters

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify that the specific ordering suffix matches the required package type and temperature grade. Confirm RoHS compliance status through official manufacturer documentation before finalizing procurement decisions.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component for applications requiring simultaneous low voltage noise and extremely low current noise. It is suitable for amplifying low-level signals from high impedance transducers where input bias current stability is critical across the full common mode range.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the LT1793 series of low noise JFET input operational amplifiers. The IS8 designation indicates the industrial temperature grade (-40°C to +85°C) and the S8 plastic small outline package. It serves as a single-channel version within the family, offering superior noise performance compared to standard bipolar op amps.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Officially confirmed substitute part numbers include LT1793ACS8#TRPBF and LT1793CS8#TRPBF. Ensure compatibility regarding temperature range and package dimensions when substituting.

Instrumentation, Op Amps, Buffer Amps FAQ

Does the LT1793 experience phase reversal if the input voltage exceeds the common mode range?

No, the LT1793 is designed to eliminate phase reversal. It clips cleanly and recovers without phase reversal even when the input swings beyond the common mode range.

What is the typical input bias current of the LT1793?

The typical input bias current is 3 pA at 25°C. This low current is maintained over the entire common mode range.