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MAX4524EUB+T from MAXIM,MAXIM - Dallas Semiconductor

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MAX4524EUB+T

Manufacturer: MAXIM, MAXIN

Low-Voltage, Single-Supply Multiplexer and Switch

Partnumber Manufacturer Quantity Availability
MAX4524EUB+T MAXIM, MAXIN 448 In Stock

Description and Introduction

Low-Voltage, Single-Supply Multiplexer and Switch The MAX4524EUB+T is a high-performance, single-supply, low-voltage, CMOS analog switch manufactured by Maxim Integrated.  

### **Specifications:**  
- **Supply Voltage Range:** +2.7V to +12V (single supply)  
- **Low On-Resistance:** 5Ω (typical at +5V supply)  
- **Low On-Resistance Flatness:** 0.5Ω (typical)  
- **Fast Switching Times:**  
  - tON: 50ns (typical)  
  - tOFF: 30ns (typical)  
- **Low Charge Injection:** 5pC (typical)  
- **Low Power Consumption:** 0.5μW (typical at +5V supply)  
- **High Off-Isolation:** -80dB (typical at 1MHz)  
- **Crosstalk Rejection:** -90dB (typical at 1MHz)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 10-μMAX (3mm x 5mm)  

### **Description:**  
The MAX4524EUB+T is a precision, low-voltage, single-pole/single-throw (SPST) analog switch designed for high-speed, low-distortion signal switching applications. It features low on-resistance and excellent signal integrity, making it suitable for audio, video, and data acquisition systems.  

### **Features:**  
- Single-supply operation (+2.7V to +12V)  
- Low on-resistance (5Ω typical at +5V)  
- Low on-resistance flatness (0.5Ω typical)  
- Fast switching speeds (tON = 50ns, tOFF = 30ns)  
- Low charge injection (5pC typical)  
- High off-isolation (-80dB at 1MHz)  
- Low power consumption (0.5μW typical)  
- TTL/CMOS-compatible logic inputs  
- Available in a space-saving 10-μMAX package  

This device is commonly used in battery-powered systems, audio/video routing, and precision signal switching applications.

Application Scenarios & Design Considerations

Low-Voltage, Single-Supply Multiplexer and Switch# Technical Documentation: MAX4524EUB+T Precision, Quad, SPST Analog Switch

 Manufacturer : Maxim Integrated (now part of Analog Devices)
 Part Number : MAX4524EUB+T
 Description : Low-Voltage, Precision, Quad, SPST, CMOS Analog Switch
 Package : 10-µMAX (3mm x 5mm)

---

## 1. Application Scenarios

### Typical Use Cases
The MAX4524EUB+T is a quad, single-pole/single-throw (SPST) analog switch designed for precision signal routing in low-voltage systems. Its primary function is to connect or disconnect analog or digital signals under digital control with minimal signal distortion.

*    Signal Multiplexing/Demultiplexing:  A core use case is routing multiple analog signals to a single ADC input (multiplexing) or distributing a single signal to multiple destinations (demultiplexing). For example, in a data acquisition system, four different sensor outputs (e.g., temperature, pressure, voltage, current) can be sequentially connected to a single precision amplifier and ADC channel.
*    Programmable Gain/Attenuation:  By switching different resistor values into an op-amp feedback network, the device can create a programmable gain amplifier (PGA) or programmable attenuator. This is common in instrumentation and audio equipment where input signal levels vary widely.
*    Automatic Test Equipment (ATE) & Instrumentation:  Used in channel switching matrices for routing test signals to and from devices under test (DUTs). Its low charge injection and high off-isolation are critical for maintaining signal integrity during sensitive measurements.
*    Battery-Powered/Portable Systems:  The switch is ideal for power management functions like selecting between battery and USB power sources, switching sensor power rails on/off to conserve energy, or routing audio signals to speakers/headphones.

### Industry Applications
*    Industrial Automation & Process Control:  Signal conditioning modules, PLC analog input modules, and sensor interface boards.
*    Medical Electronics:  Portable diagnostic devices (e.g., glucose meters, pulse oximeters), patient monitoring systems for switching lead configurations or calibration signals.
*    Communications Systems:  Low-voltage RF signal routing, baseband switching, and antenna diversity switching in handheld transceivers.
*    Consumer Electronics:  Audio/video signal routing in smartphones, tablets, and portable media players; user interface control.
*    Automotive Electronics:  Sensor signal multiplexing in body control modules and infotainment systems (non-safety critical).

### Practical Advantages and Limitations

 Advantages: 
*    Low Power Consumption:  Operates from a single +2V to +12V supply or dual ±2V to ±6V supplies, with typical supply current of 1nA in shutdown mode, making it excellent for battery-operated devices.
*    Precision Performance:  Features low on-resistance (45Ω max at +5V supply) with excellent flatness (4Ω max) over the signal range, minimizing signal distortion and gain errors.
*    High Signal Integrity:  Very low charge injection (5pC typ) prevents voltage glitches when switching, and high off-isolation (-80dB at 1MHz) ensures minimal crosstalk between disabled channels.
*    Rail-to-Rail Signal Handling:  The analog signal can swing from V- to V+, maximizing dynamic range in single-supply systems.
*    TTL/CMOS Logic Compatible:  Digital control inputs are compatible with standard logic levels, simplifying interface with microcontrollers and FPGAs.

 Limitations: 
*    Bandwidth:  The -3dB bandwidth is typically 200MHz. While suitable for audio, DC, and moderate-frequency signals, it is not intended for switching GHz-range RF signals without significant insertion loss.
*    Current Handling:  Continuous

Alternative Part Number

  • ADG774BRQZ --: Pin-compatible CMOS analog multiplexer/switch with similar on-resistance and supply range, widely available and functionally equivalent in most MAX4524 applications.
  • DG444DJ+ --: Quad SPST analog switch offering comparable low on-resistance and low leakage, suitable as a drop-in functional replacement in signal routing circuits.
  • TS5A23157DGSR --: Low-voltage dual SPDT analog switch with similar switching characteristics and small package, usable where the MAX4524's channel configuration can be adapted.
  • ADG704BRMZ --: Pin-compatible 4-channel CMOS analog multiplexer with similar on-resistance and supply range, widely available as a direct functional substitute.
  • DG408DQ-T1-E3 --: 8-channel analog multiplexer offering comparable switching characteristics and low on-resistance, suitable for similar signal routing applications.
  • CD4051BM96 --: Industry-standard CMOS 8-channel analog multiplexer/demultiplexer with broad supply range and low cost, usable where lower precision is acceptable.

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