LT1077AIN8#PBF

Instrumentation, Op Amps, Buffer Amps Overview

The LT1077AIN8#PBF is a micropower precision operational amplifier in an 8-lead PDIP package. It operates from a single supply of 2.2V to 5V or dual supplies up to ±22V. Key electrical parameters include a maximum input offset voltage of 40µV, a maximum supply current of 60µA, and a gain-bandwidth product of 250kHz. The device features low noise with 0.5µVP-P (0.1Hz to 10Hz) voltage noise and 350pA max offset current. It supports output swing to ground while sinking current and includes offset adjustment capabilities.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Optimized for single-supply operation with input range including ground and output capable of swinging to ground without pull-down resistors.
• Provides precision performance comparable to higher-power op amps while maintaining micropower consumption levels.
• Features extremely low input offset voltage and drift, ensuring high accuracy in DC applications.
• Includes phase reversal protection circuitry to prevent output lock-up when inputs exceed the negative common mode range.

Instrumentation, Op Amps, Buffer Amps Applications

• Battery-powered systems requiring extended life and precision signal conditioning
• 4mA to 20mA industrial current loops
• Difference amplifiers with high source resistance
• Precision comparators with TTL-compatible outputs

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific grade suffix 'AI' corresponds to the required operating temperature range of -40°C to +85°C. Confirm that the N8 PDIP package matches the PCB footprint requirements. Ensure the #PBF suffix indicates lead-free compliance if RoHS standards are mandatory for the assembly process.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when low power consumption is critical but precision parameters like offset voltage and noise cannot be compromised. It serves as a direct pin-compatible replacement for OP-07 and OP-77 types with significantly lower power dissipation. Consider the 250kHz bandwidth and 0.12V/µs slew rate for speed requirements compared to other micropower alternatives.

Instrumentation, Op Amps, Buffer Amps Part Context

The LT1077 series is designed to bridge the gap between standard precision op amps and micropower devices. It offers plug-in compatibility with industry-standard packages, allowing designers to upgrade existing circuits for power savings without redesigning the board layout or nulling circuits.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

LT1077IN8#PBF

Instrumentation, Op Amps, Buffer Amps FAQ

Does the LT1077 require external components to swing its output to ground?

No, the all-NPN output stage allows the output to swing to ground while sinking current without the need for external pull-down resistors.

How does the LT1077 handle input signals below the negative supply rail?

The input voltage range extends 5V below the negative supply voltage, and internal protection resistors prevent damage even if the input is significantly below ground.