AD842JN

Instrumentation, Op Amps, Buffer Amps Overview

The AD842JN is a wideband, high output current operational amplifier fabricated using Analog Devices' junction isolated complementary bipolar process. It features an 80 MHz gain bandwidth product and a 375 V/µs slew rate. The device offers fast settling to within 0.01% of final value in less than 100 ns for a 10 V step. Key electrical specifications include a maximum input offset voltage of 1.5 mV, a minimum output current drive of 100 mA, and a quiescent supply current of 14 mA maximum. It operates on dual supplies ranging from ±5 V to ±18 V.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Combines DC precision with wideband AC performance through junction isolated complementary bipolar fabrication.
• Provides extremely fast settling characteristics suitable for high-speed signal conditioning.
• Features low input offset voltage that eliminates the need for external offset nulling in many applications.
• Delivers high output current drive capability for demanding load requirements.

Instrumentation, Op Amps, Buffer Amps Applications

• Line drivers
• DAC and ADC buffers
• Video and pulse amplifiers

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix 'JN' corresponds to the 14-lead Plastic Dual In-Line Package (PDIP) and the commercial temperature range of 0°C to 70°C. Confirm RoHS compliance status as indicated by ordering guide suffixes. Ensure the application environment does not exceed the absolute maximum ratings for supply voltage or internal power dissipation.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when circuit designs require both high speed and significant output current drive. The 80 MHz bandwidth and rapid settling make it appropriate for data acquisition systems requiring 12-bit accuracy. Consider the PDIP package thermal characteristics if driving low impedance loads, as heat sinks may be necessary to maintain performance under high current conditions.

Instrumentation, Op Amps, Buffer Amps Part Context

The AD842 belongs to a family of wideband operational amplifiers designed for applications previously limited to hybrid circuits. It provides monolithic integration of precision DC parameters and high-frequency AC performance. The device is available in multiple packages including plastic DIP, ceramic DIP, and SOIC formats to suit various manufacturing and environmental needs.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Direct substitutes include other members of the AD842 family such as the AD842JRZ-16 for surface mount implementations. Verify pin compatibility and thermal management requirements when transitioning between package types like PDIP and SOIC.

Instrumentation, Op Amps, Buffer Amps FAQ

Does the AD842 require external offset nulling?

No, laser-wafer trimming reduces the input offset voltage to a maximum of 1.5 mV, eliminating the need for external offset nulling in most applications.

What is the stability requirement for the AD842?

The amplifier is stable at gains of 2 or greater.