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MAX4643EUA from MAXIM,MAXIM - Dallas Semiconductor

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MAX4643EUA

Manufacturer: MAXIM, MAX

High-Speed, Low-Voltage, 4з, Dual SPST CMOS Analog Switches

Partnumber Manufacturer Quantity Availability
MAX4643EUA MAXIM, MAX 2663 In Stock

Description and Introduction

High-Speed, Low-Voltage, 4з, Dual SPST CMOS Analog Switches The MAX4643EUA is a high-performance, low-voltage, single-pole/double-throw (SPDT) analog switch manufactured by Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** Maxim Integrated (now Analog Devices)  
- **Part Number:** MAX4643EUA  
- **Type:** SPDT (Single-Pole/Double-Throw) Analog Switch  
- **Supply Voltage Range:** +1.8V to +5.5V  
- **On-Resistance (RON):** 0.5Ω (typical at +5V supply)  
- **On-Resistance Flatness:** 0.1Ω (typical at +5V supply)  
- **Charge Injection:** 10pC (typical)  
- **Bandwidth (-3dB):** 200MHz (typical)  
- **Switching Time (tON/tOFF):** 20ns / 15ns (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-pin μMAX (MSOP)  

### **Descriptions:**
The MAX4643EUA is a high-speed, low-voltage CMOS analog switch designed for precision signal routing in portable and low-power applications. It features low on-resistance, minimal charge injection, and high bandwidth, making it suitable for audio, video, and data switching applications.

### **Features:**
- **Low On-Resistance:** 0.5Ω (typical at +5V)  
- **Wide Supply Range:** Operates from +1.8V to +5.5V  
- **Fast Switching:** 20ns turn-on, 15ns turn-off  
- **High Bandwidth:** 200MHz (-3dB)  
- **Low Charge Injection:** 10pC (typical)  
- **Low Power Consumption:** <0.1μA (typical)  
- **Rail-to-Rail Signal Handling**  
- **TTL/CMOS-Compatible Logic Inputs**  
- **ESD Protection:** >2000V (Human Body Model)  

This device is commonly used in battery-powered systems, audio/video signal routing, communication systems, and test equipment.

Application Scenarios & Design Considerations

High-Speed, Low-Voltage, 4з, Dual SPST CMOS Analog Switches

Alternative Part Number

  • ADG721BRMZ --: Pin-compatible SPDT analog switch with similar low on-resistance and single-supply operation, widely available and a common drop-in replacement for the MAX4643.
  • TS5A23157DGSR --: Dual SPDT analog switch in a small package with comparable Ron and voltage range, offering a cost-effective alternative from a major supplier.
  • NLAS4157DFT2G --: Low-voltage SPDT analog switch with similar switching characteristics and small footprint, suitable as a functional substitute when the MAXIM part is unavailable.
  • TS5A3157DCKR --: Low-voltage SPDT analog switch in a small package with comparable Ron and switching characteristics, suitable for signal routing applications.
  • DG2715DQ-T1-E3 --: Low-voltage dual analog switch with similar switching characteristics and supply range, suitable as a functional substitute.

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