LT1126ACN8#PBF

Instrumentation, Op Amps, Buffer Amps Overview

The LT1126ACN8#PBF is a dual decompensated low noise, high speed precision operational amplifier manufactured by Analog Devices. It operates within a supply voltage range of ±4V to ±18V and supports an operating temperature range from -40°C to +85°C. Key electrical specifications include a typical gain-bandwidth product of 65MHz, a slew rate of 11V/µs, and an input offset voltage maximum of 70µV. The device features a typical input voltage noise density of 2.7nV/√Hz at 1kHz and draws a maximum supply current of 3.1mA per amplifier. It is housed in an 8-lead PDIP package.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Decompensated architecture optimized for stability at gains of 10 or higher, enabling enhanced AC performance including higher slew rate and bandwidth compared to unity-gain stable counterparts.
• Low noise characteristics with 100% tested input voltage noise density, ensuring minimal signal degradation in sensitive applications.
• High large-signal voltage gain exceeding 5 million V/mV minimum, supporting precise amplification requirements.

Instrumentation, Op Amps, Buffer Amps Applications

• Two and three op amp instrumentation amplifiers
• Active filters requiring wide bandwidth
• Microvolt accuracy threshold detection circuits
• Strain gauge amplifiers
• Direct coupled audio gain stages

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix CN8 corresponds to the 8-lead PDIP package configuration before integration. Confirm that the AC grade meets the required offset voltage and drift specifications for the target application environment. Ensure supply voltages remain within the ±4V to ±18V limits to prevent damage. Check for lead-free compliance markings if environmental regulations apply to the manufacturing process.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when high bandwidth and low noise are critical, but unity-gain stability is not required. The decompensated design allows for superior speed and noise performance compared to standard precision op amps. Consider the 8-lead PDIP package for through-hole assembly needs. Evaluate the need for gain settings of 10 or greater to ensure circuit stability without external compensation components.

Instrumentation, Op Amps, Buffer Amps Part Context

The LT1126 series belongs to a family of high-performance decompensated operational amplifiers designed to offer improved AC specifications over previous generations like the LT1124. While sharing similar DC characteristics, the LT1126 provides significantly higher slew rates and gain-bandwidth products. This makes it suitable for demanding signal processing tasks where speed and noise floor are primary constraints.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

LT1126CN8#PBF serves as a lower-grade alternative with relaxed offset voltage specifications. LT1126AMJ8 offers a wider military temperature range in a ceramic DIP package. For surface mount requirements, the LT1126CS8 variant provides the same electrical performance in an 8-lead SOIC package.