5962-89641012A

Overview

The AD841 is a wideband, unity-gain stable, fast settling operational amplifier fabricated using Analog Devices' junction isolated complementary bipolar process. It features a 40 MHz unity-gain bandwidth and a 300 V/µs slew rate. The device settles to within 0.01% of a 10 V step in 110 ns without long tails. DC performance includes a maximum input offset voltage of 1 mV for the K grade and a typical input voltage noise of 15 nV/√Hz. It provides a minimum output current drive of 50 mA with a maximum quiescent supply current of 12 mA.

Feature Summary

• Unity-gain stability eliminates the need for external compensation components across the full operating temperature range.
• Fast settling characteristics achieve 0.01% accuracy in 110 ns for large signal steps, avoiding long settling tails common in other amplifiers.
• High slew rate of 300 V/µs combined with wide bandwidth supports high-frequency video and pulse applications.
• Laser wafer trimming reduces input offset voltage to 1 mV maximum, often removing the requirement for external offset nulling circuits.

Applications

• High speed signal conditioning
• Video and pulse amplifiers
• Data acquisition systems requiring 12-bit accuracy
• Line drivers
• Active filters

Procurement Notes

Verify the specific suffix against the Ordering Guide to confirm package type and temperature range. The part number 5962-89641012A corresponds to the AD841SE/883B variant under standard military drawing specifications. Confirm that the required environmental rating matches the -55°C to +125°C range associated with this MIL-STD-883B designation before finalizing procurement.

Selection Notes

Select this component when unity-gain stability and rapid settling are critical requirements. The AD841 offers a combination of precision and speed previously available only in hybrid circuits. Consider the K grade if minimizing input offset voltage is necessary to avoid external nulling. Ensure the application load does not exceed the capacitive driving limits without series isolation resistors to maintain stability.

Part Context

The AD841 belongs to a family of wide bandwidth operational amplifiers from Analog Devices, including the AD842. While the AD842 requires a gain of two or greater for stability, the AD841 is fully stable at unity gain. Both utilize the same complementary bipolar process to deliver high precision and wideband AC performance in a monolithic configuration.

Replacement Considerations

The AD841SE/883B is the specific military-grade version corresponding to the 5962-89641012A designation. Other variants include the AD841SQ for ceramic DIP packaging and the AD841SE for LCC packaging, all sharing the same electrical characteristics but differing in physical form factor and qualification standards.

FAQ

Does the AD841 require external frequency compensation?

No, the AD841 is internally compensated and remains stable over its full operating temperature range without external components.

What is the maximum differential input voltage?

The absolute maximum differential input voltage is ±6 V. Exceeding this limit may damage the device.

How does the AD841 handle capacitive loads?

The AD841 can drive capacitive loads up to 20 pF without performance degradation. For larger loads, a series resistor should be used to decouple the feedback loop and prevent instability.