OP221BIGZ

Instrumentation, Op Amps, Buffer Amps Overview

The OP221BIGZ is a dual low-power operational amplifier manufactured by Analog Devices Inc. It features a gain-bandwidth product of 600 kHz and a slew rate of 300 mV/us. The input offset voltage is specified at 500 uV, with an input bias current of 120 nA. Operating from a single supply of 5 V to 30 V or dual supplies up to +/- 15 V, it draws a maximum supply current of 900 uA per channel. The device offers a common-mode rejection ratio of 90 dB and operates within a temperature range of -40 C to +85 C in an SOIC-8 package.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Dual low-power operational amplifier architecture suitable for battery-powered applications
• Wide single-supply operation capability ranging from 5 V to 30 V
• Low input offset voltage and drift characteristics for precision signal conditioning

Instrumentation, Op Amps, Buffer Amps Applications

• Battery-operated instrumentation circuits
• Unregulated power supply signal processing
• General-purpose analog signal amplification

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix 'IG' against official Analog Devices documentation to confirm die lot or revision differences compared to standard 'GSZ' variants. Ensure the component matches the required operating temperature range and package dimensions for your PCB layout. Cross-reference the manufacturer part number directly with the datasheet to avoid confusion with similar pin-compatible devices like the LM158 or LM2904.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when a dual op-amp with low power consumption and wide supply voltage range is required. It serves as a drop-in replacement for older bipolar op-amps in single-supply designs. Consider the 600 kHz bandwidth and 300 mV/us slew rate for moderate-speed applications. Verify that the 500 uV input offset voltage meets the accuracy requirements of the target circuit.

Instrumentation, Op Amps, Buffer Amps Part Context

The OP221 series represents a family of dual low-power operational amplifiers designed for versatility in both single and dual supply configurations. The OP221BIGZ belongs to this lineage, offering improved performance over legacy general-purpose amplifiers while maintaining pin compatibility with industry-standard packages. This allows for easier upgrades in existing designs requiring lower power dissipation and better thermal stability.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Public confirmed substitute part numbers include OP221GSZ and OP221GJ. These alternatives share identical electrical specifications and pinouts, ensuring functional interchangeability in most applications.