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CMP402GS

CMP402GS Description

The CMP402GS from Analog Devices Inc. is a general-purpose quad comparator housed in a 16-SOIC package, designed for precision signal comparison in a wide range of electronic systems. Operating on a ±5V dual supply, this IC delivers robust performance with low input offset voltage (3mV max @ 5V) and minimal input bias current (3µA max @ 5V), ensuring high accuracy in signal processing. Despite its obsolete status, the CMP402GS remains a reliable choice for legacy designs due to its low quiescent current (1.2mA max) and fast propagation delay (75ns max), making it suitable for time-critical applications.

CMP402GS Features

• High Noise Immunity: Features 60dB CMRR and PSRR, reducing susceptibility to common-mode noise and power supply fluctuations.
• Versatile Outputs: Supports CMOS and TTL output compatibility, enabling seamless integration with mixed-logic systems.
• Built-in Hysteresis (2mV): Enhances stability in noisy environments by preventing output oscillation near threshold voltages.
• Low Power Consumption: Quiescent current as low as 1mA optimizes energy efficiency in battery-operated devices.
• Surface-Mount Design: 16-SOIC package (MSL 1) ensures easy assembly and reliability in compact PCB layouts.

CMP402GS Applications

• Threshold Detection: Ideal for overvoltage/undervoltage monitoring in power management circuits.
• Signal Conditioning: Used in sensor interfaces and ADC driver circuits due to its precision offset performance.
• Industrial Control Systems: Employed in motor control and PLC modules for fast response times.
• Legacy Equipment Maintenance: Suitable for repairing or upgrading older systems requiring ±5V comparators.

Conclusion of CMP402GS

The CMP402GS excels in general-purpose comparison tasks, offering a balance of speed, accuracy, and power efficiency. While newer alternatives exist, its robust noise immunity, dual-supply operation, and TTL/CMOS compatibility make it a pragmatic choice for engineers maintaining or designing systems with specific voltage requirements. Its obsolete status warrants consideration of long-term availability, but for existing applications, it remains a dependable solution.