LT1169CS8#PBF

Instrumentation, Op Amps, Buffer Amps Overview

The LT1169CS8#PBF is a dual low noise, picoampere bias current, JFET input operational amplifier manufactured by Analog Devices Inc. It operates within a supply voltage range of ±5V to ±20V and an operating temperature range of –40°C to 85°C. Key electrical characteristics include a typical input offset voltage of 0.6mV (max 2.0mV), input bias current of 5pA (max 20pA warmed up), and input noise voltage density of 6nV/√Hz at 1kHz. The device features a gain-bandwidth product of 5.3MHz, slew rate of 4.2V/μs, and input resistance of 10^13Ω. It is housed in an 8-lead plastic SOIC (S8) package.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Combines extremely low voltage noise with picoampere-level input bias current for high impedance transducer applications
• Maintains constant input bias current across the entire common mode range ensuring high input resistance
• Unconditionally stable for gains of 1 or more even with capacitive loads
• Provides guaranteed matching specifications for precision instrumentation amplifier front ends

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 the specific S8 package designation and #PBF lead-free suffix against official Analog Devices documentation before procurement. Confirm that the component meets the required industrial temperature range and electrical tolerances for the intended application environment. Ensure compatibility with existing PCB footprints and soldering processes for the 8-lead plastic small outline package.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when amplifying signals from high impedance transducers requiring minimal signal degradation. The device is suitable for applications demanding low total noise performance where both voltage and current noise contributions must be minimized. Consider its unconditional stability and matched dual configuration for building precision instrumentation amplifiers or active filter circuits.

Instrumentation, Op Amps, Buffer Amps Part Context

The LT1169 belongs to the family of dual JFET input operational amplifiers designed for high-performance analog signal processing. It serves as a direct replacement for other low-noise JFET op amps like the OPA2111 and OP215 in many designs. The device offers improved noise performance compared to standard bipolar op amps at higher source resistances.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Public confirmed substitute part numbers include LT1176CN8#PBF.