The **CMP401GS** is a high-speed, low-power quad comparator manufactured by Analog Devices. It is designed for high-performance applications where rapid signal processing and low power consumption are critical. --- ## 1. Key Technical Specifications The following table highlights the primary electrical characteristics of the CMP401GS: | Feature | Specification | | :--- | :--- | | **Type** | High-Speed Comparator | | **Number of Channels** | 4 (Quad) | | **Propagation Delay** | 20 ns (Typical) | | **Supply Voltage (Single)** | +3V to +6V | | **Supply Voltage (Dual)** | ±1.5V to ±3V | | **Supply Current** | 2.5 mA per comparator | | **Output Type** | TTL / CMOS Compatible | | **Package Type** | SOIC-16 (Small Outline Integrated Circuit) | --- ## 2. Functional Characteristics ### High Speed with Low Power The CMP401GS is optimized for a 20 ns propagation delay while maintaining a low supply current. This makes it ideal for battery-powered systems that require fast response times, such as data communications or high-speed clock recovery. ### Rail-to-Rail Inputs The input voltage range includes the negative supply rail, which simplifies interfacing with sensors and signals that operate near ground in single-supply systems. ### TTL/CMOS Compatibility The output logic levels are compatible with standard digital logic families (TTL and CMOS). This allows the comparator to interface directly with microcontrollers, FPGAs, and other logic gates without needing level-shifting circuitry. --- ## 3. Pin Configuration (SOIC-16) The device is housed in a 16-pin package. Below is a generalized functional map of the pins: | Pin Category | Description | | :--- | :--- | | **Inputs (+)** | Non-inverting inputs for the four independent comparators. | | **Inputs (-)** | Inverting inputs for the four independent comparators. | | **Outputs** | Logic outputs for each of the four comparators. | | **V+ / V-** | Positive and Negative Power Supply pins. | | **NC** | No Connection pins (used for physical stability/standard spacing). | --- ## 4. Typical Applications * **Threshold Detectors:** Converting analog signals into digital pulses based on a reference voltage. * **Clock Recovery:** Restoring square wave signals from distorted or attenuated transmission lines. * **Window Comparators:** Determining if a voltage falls within a specific high/low range (requires two channels). * **Line Receivers:** Interpreting high-speed data across communication cables. ---