The **TMUX1102DBVR** is a high-performance, complementary metal-oxide semiconductor (CMOS) single-pole single-throw (SPST) switch produced by Texas Instruments. It is designed for precision applications requiring low leakage currents and low distortion. --- ### 1. Key Technical Specifications The following table outlines the primary electrical characteristics of the TMUX1102: | Parameter | Specification | | :--- | :--- | | **Configuration** | 1:1 SPST (Normally Open) | | **Supply Voltage ($V_{DD}$)** | 1.08 V to 5.5 V | | **On-Resistance ($R_{ON}$)** | 2 $\Omega$ (Typical) | | **Leakage Current** | 3 pA (Typical) | | **Bandwidth** | 300 MHz | | **Operating Temperature** | -40°C to 125°C | | **Package** | SOT-23 (6-pin) | --- ### 2. Functional Description The device consists of a single switch channel controlled by a digital logic input (**SEL**). * **Logic Thresholds:** The TMUX1102 features 1.8V logic-compatible inputs, allowing it to interface directly with modern microcontrollers (MCUs) without the need for external level shifters. * **Rail-to-Rail Operation:** It can handle bidirectional analog and digital signals ranging from ground ($GND$) to the supply voltage ($V_{DD}$). * **Break-Before-Make:** While this is a single channel, the series is designed with timing precision to ensure clean signal switching. --- ### 3. Application Use Cases Due to its low power consumption and high precision, it is commonly used in: 1. **Sample-and-Hold Circuits:** High impedance and low leakage prevent voltage "droop." 2. **Battery Powered Equipment:** Ultra-low quiescent current ($I_{DD} < 1 \mu A$) extends battery life. 3. **Signal Gating:** Ideal for isolating sensors or routing high-speed digital signals. 4. **Medical Instrumentation:** Low distortion ensures signal integrity for sensitive diagnostics. --- ### 4. Pin Configuration (DBV Package) The SOT-23-6 package is organized as follows: | Pin Number | Name | Description | | :--- | :--- | :--- | | 1 | **NO** | Normally Open terminal | | 2 | **GND** | Ground reference | | 3 | **S** | Source terminal (Common) | | 4 | **SEL** | Logic Control Input | | 5 | **N.C.** | Not Connected | | 6 | **VDD** | Positive Supply Voltage | ---