KA2902D

Overview

The KA2902D is a quad general-purpose operational amplifier manufactured by onsemi. It features four independent amplifiers within a single package, designed for low-power applications. The device operates with a supply voltage range of 3V to 26V or ±1.5V to ±13V. Key electrical parameters include an input bias current of 40nA, an input offset voltage of 1.5mV, and a supply current of 1mA per amplifier. It supports an output current of 13mA per channel and offers a common-mode rejection ratio of 50dB. The component is available in a 14-pin SOP package.

Feature Summary

• Integrates four independent general-purpose operational amplifiers in a compact surface-mount package
• Designed for low-power consumption with minimal supply current requirements
• Supports wide single-supply or dual-supply voltage operation for flexible circuit integration

Applications

• General-purpose signal conditioning circuits
• Low-power analog sensor interfaces
• Battery-operated electronic devices requiring efficient power usage

Procurement Notes

Verify the specific manufacturer source, as the KA2902D part number has been produced by multiple vendors including Samsung and Fairchild. Confirm that the onsemi datasheet matches the required pinout and electrical specifications for your design. Check for any obsolescence notices or lifecycle status updates from onsemi before finalizing procurement plans.

Selection Notes

Select this component when a quad op-amp solution is needed for cost-sensitive, low-power designs. Ensure the 1.5mV input offset voltage meets your application's precision requirements. Verify that the 13mA output current capability is sufficient for driving the intended load without external buffering.

Part Context

The KA2902D belongs to the broader family of quad operational amplifiers used in consumer and industrial electronics. It serves as a functional equivalent to other standard quad op-amps but is distinguished by its specific low-power characteristics and onsemi manufacturing process. The device is commonly found in portable electronics and instrumentation where space and power efficiency are critical constraints.

Replacement Considerations

The LM2902 is a documented substitute offering similar quad op-amp functionality. Verify pin compatibility and electrical parameter alignment before substitution.