## Overview of the TS3704CD The **TS3704CD** is a high-performance, **micropower quad CMOS voltage comparator**. It is designed to provide high-speed response times while maintaining extremely low power consumption. Because it is a "Quad" comparator, a single chip contains four independent voltage comparator units. --- ### Key Technical Specifications | Feature | Specification | | :--- | :--- | | **Comparator Type** | CMOS Quad (4 channels) | | **Supply Voltage Range** | 2.7V to 16V | | **Current Consumption** | ~10µA per comparator (typical) | | **Response Time** | 600ns (typical) | | **Output Type** | Push-Pull | | **Input Impedance** | $10^{12} \Omega$ (Extremely High) | | **Package Type** | SO-14 (Small Outline Package) | --- ### Core Electronic Characteristics #### 1. Push-Pull Output Stage Unlike many standard comparators (like the LM339) which have open-collector outputs requiring a pull-up resistor, the TS3704CD features a **Push-Pull output**. * **Benefit:** It can drive logic gates or small loads directly to either the positive rail or ground without external components. #### 2. Ultra-Low Power Consumption This part is specifically engineered for battery-powered applications. With a total current draw of roughly **40µA for all four comparators**, it significantly extends the battery life of portable devices. #### 3. CMOS Technology Because it uses CMOS transistors rather than bipolar transistors: * The **Input Bias Current** is virtually zero (pico-ampere range). * The input voltage can go down to the negative rail (0V), making it ideal for single-supply systems. --- ### Pin Configuration (SO-14 Package) | Pin Number | Function | Description | | :--- | :--- | :--- | | 1, 2, 13, 14 | **Outputs (1-4)** | CMOS Push-Pull output pins | | 3 | **Vcc+** | Positive supply voltage | | 12 | **GND / Vcc-** | Ground or negative supply | | 4-11 | **Inputs (+/-)** | Non-inverting and Inverting inputs for each of the 4 units | --- ### Common Applications * **Battery Monitoring:** Detecting low battery thresholds in mobile electronics. * **Threshold Detectors:** Converting analog sensor signals into digital high/low signals. * **Oscillators:** Creating square wave generators with minimal power overhead. * **Signal Conditioning:** Interfacing high-impedance sensors with microcontrollers. ---