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MAX243ESE+ from MAXIM,MAXIM - Dallas Semiconductor

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MAX243ESE+

Manufacturer: MAXIM

+5V-Powered, Multichannel RS-232 Drivers/Receivers

Partnumber Manufacturer Quantity Availability
MAX243ESE+,MAX243ESE MAXIM 5 In Stock

Description and Introduction

+5V-Powered, Multichannel RS-232 Drivers/Receivers The **MAX243ESE+** is a **RF amplifier** manufactured by **MAXIM Integrated**. Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** MAXIM Integrated  
- **Category:** RF Amplifier  
- **Package:** 16-SOIC (0.154", 3.90mm Width)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Frequency Range:** Up to **2.5 GHz**  
- **Gain:** **15 dB** (typical)  
- **Noise Figure:** **3.5 dB** (typical)  
- **Supply Voltage:** **+5V**  
- **Current Consumption:** **50 mA** (typical)  
- **Input/Output Impedance:** **50 Ω**  

### **Descriptions:**
The **MAX243ESE+** is a **low-noise amplifier (LNA)** designed for **RF applications** up to **2.5 GHz**. It provides high gain with low noise figure, making it suitable for **wireless communication systems**, **cellular infrastructure**, and **RF front-end circuits**. The device operates from a single **+5V supply** and is housed in a **16-pin SOIC package**.

### **Features:**
- **Wideband operation** (up to 2.5 GHz)  
- **High gain (15 dB)** for signal amplification  
- **Low noise figure (3.5 dB)** for improved signal integrity  
- **Single +5V supply operation**  
- **50 Ω input/output impedance** for easy integration  
- **Robust performance** across industrial temperature ranges (-40°C to +85°C)  

This device is commonly used in **RF receivers, transceivers, and signal conditioning circuits** where high gain and low noise are critical.

Application Scenarios & Design Considerations

+5V-Powered, Multichannel RS-232 Drivers/Receivers

Alternative Part Number

  • SP3243ECA-L --: Pin-compatible RS-232 transceiver with similar 3V/5V operation and ESD protection, widely used as a drop-in replacement for MAX243 in many designs.
  • ADM3202ARNZ --: Dual RS-232 driver/receiver with comparable data rate and supply range, available in SOIC package and well established as a MAX243 alternative.
  • ST3232ECTR --: Low-power RS-232 transceiver offering similar functionality and pinout, suitable for cost-sensitive replacements of MAX243ESE+.

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