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MAX4522CSE from MAXIM,MAXIM - Dallas Semiconductor

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MAX4522CSE

Manufacturer: MAXIM

Quad / Low-Voltage / SPST Analog Switches

Partnumber Manufacturer Quantity Availability
MAX4522CSE MAXIM 46 In Stock

Description and Introduction

Quad / Low-Voltage / SPST Analog Switches The MAX4522CSE is a precision, quad, single-pole/double-throw (SPDT) analog switch manufactured by Maxim Integrated.  

### **Specifications:**  
- **Supply Voltage Range:** ±4.5V to ±20V (Dual Supply) or +4.5V to +30V (Single Supply)  
- **On-Resistance (RON):** 100Ω (max)  
- **On-Resistance Flatness:** 10Ω (max)  
- **Charge Injection:** 10pC (max)  
- **Leakage Current (Off-State):** ±0.1nA (max)  
- **Switching Time (tON/tOFF):** 300ns/200ns (max)  
- **Operating Temperature Range:** 0°C to +70°C  
- **Package:** 16-Pin Narrow SOIC (CSE)  

### **Descriptions:**  
- The MAX4522CSE is a low-voltage, low-on-resistance, quad SPDT analog switch.  
- It is designed for precision signal switching in industrial, automotive, and communication applications.  
- Features low charge injection and high off-isolation for minimal signal distortion.  

### **Features:**  
- **Low On-Resistance:** 100Ω (max) ensures minimal signal attenuation.  
- **Wide Supply Range:** Supports both single and dual supplies.  
- **Low Leakage:** ±0.1nA (max) ensures high signal integrity.  
- **Fast Switching:** 300ns turn-on and 200ns turn-off times.  
- **Break-Before-Make Switching:** Prevents signal shorting during transitions.  
- **TTL/CMOS-Compatible Logic Inputs:** Ensures easy interfacing with digital circuits.  

This device is ideal for applications requiring precision signal routing, such as data acquisition, audio switching, and test equipment.

Application Scenarios & Design Considerations

Quad / Low-Voltage / SPST Analog Switches# Technical Documentation: MAX4522CSE Precision, Quad, SPST Analog Switch

 Manufacturer : MAXIM (now part of Analog Devices Inc.)
 Document Revision : 1.0
 Date : October 26, 2023

---

## 1. Application Scenarios

The MAX4522CSE is a precision, quad, single-pole/single-throw (SPST) analog switch designed for high-performance signal routing and multiplexing applications. Its low on-resistance, high bandwidth, and excellent charge injection characteristics make it suitable for a wide range of precision analog and mixed-signal systems.

### Typical Use Cases

*    Precision Signal Multiplexing:  The primary use case is multiplexing low-level analog signals from multiple sources (e.g., sensors, transducers) to a single high-impedance input of an amplifier or analog-to-digital converter (ADC). Its low and flat on-resistance (typically 35Ω) minimizes signal attenuation and distortion.
*    Sample-and-Hold Circuits:  The low charge injection (typically 5 pC) is critical in sample-and-hold applications, where injected charge can cause voltage errors on hold capacitors. The MAX4522CSE is ideal for switching the input signal to the sampling capacitor.
*    Automatic Test Equipment (ATE) & Instrumentation:  Used in channel switching matrices, programmable gain amplifier (PGA) configuration, and signal routing in data acquisition cards, digital multimeters, and oscilloscopes.
*    Audio and Video Signal Routing:  The high bandwidth (typically 200 MHz) supports the switching of audio lines and standard-definition video signals without significant degradation.
*    Communication Systems:  Employed for antenna switching, filter bank selection, and IF/RF signal routing in moderate-frequency systems, though its primary strength is in baseband and IF paths.

### Industry Applications

*    Industrial Process Control:  Multiplexing signals from thermocouples, RTDs, pressure sensors, and 4-20 mA current loops to a central processing unit.
*    Medical Electronics:  Switching bio-potential signals (ECG, EEG) in patient monitoring equipment and portable diagnostic devices.
*    Automotive Test & Measurement:  Signal routing in onboard diagnostic (OBD) tools and component testing rigs.
*    Telecommunications:  Channel selection and backup path switching in base station monitoring equipment.
*    Consumer Audio/Video:  Input selection in AV receivers, mixers, and switching matrices.

### Practical Advantages and Limitations

 Advantages: 
*    High Precision:  Low on-resistance, low charge injection, and high off-isolation ensure minimal signal path error.
*    Fast Switching:  Turn-on/turn-off times of ~150 ns enable rapid channel scanning.
*    Wide Supply Range:  Operates from a single +10V to +30V supply or dual ±4.5V to ±20V supplies, offering design flexibility.
*    Break-Before-Make Switching:  Ensures two signal sources are never momentarily shorted together during channel transitions, protecting source circuitry.
*    TTL/CMOS Logic Compatible:  Digital control inputs are compatible with standard logic levels, simplifying interface design.

 Limitations: 
*    Signal Range Constraint:  The analog signal must remain within the power supply rails (V+ and V-). Exceeding these rails can forward-bias internal ESD diodes, causing latch-up or damage.
*    On-Resistance Variation:  Ron varies with analog signal voltage and temperature. While low, this variation must be accounted for in precision DC applications.
*    Bandwidth for RF:  While 200 MHz is high, it is not suitable for switching modern RF signals in the GHz range (e.g., 5G, WiFi). Specialized RF switches are required for those frequencies.
*    Charge Injection:  Although low,

Alternative Part Number

  • DG413DY --: Quad SPST analog switch with similar on-resistance and supply range, pin-compatible in many SOIC layouts and widely available.
  • ADG452BRZ --: Quad SPST switch offering low on-resistance and comparable signal handling, suitable as a functional replacement with minor layout review.
  • TS3A4751PWR --: Low-voltage quad SPST analog switch with similar switching characteristics, useful alternative when supply and package constraints allow.
  • DG201ACSE --: Quad SPST analog switch with similar on-resistance and supply range, pin-compatible in many SOIC-16 designs and widely available as a direct functional substitute.
  • ADG201AKRZ --: Quad SPST CMOS analog switch offering comparable Ron and switching characteristics, a well-established alternative from a major analog switch vendor.
  • DG411DJZ --: Quad SPST analog switch with low on-resistance and similar logic-level control, suitable replacement when layout allows a different package option.

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