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MAX1243BCSA from MAX,MAXIM - Dallas Semiconductor

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MAX1243BCSA

Manufacturer: MAX, MAXIM

+2.7V to %.25V, Low-Power, 10-Bit Serial ADCs in SO-8

Partnumber Manufacturer Quantity Availability
MAX1243BCSA MAX, MAXIM 2201 In Stock

Description and Introduction

+2.7V to %.25V, Low-Power, 10-Bit Serial ADCs in SO-8 The MAX1243BCSA is a 12-bit analog-to-digital converter (ADC) manufactured by Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Resolution:** 12-bit  
- **Supply Voltage:** +2.7V to +5.25V  
- **Sampling Rate:** Up to 133ksps (kilo samples per second)  
- **Input Channels:** 4 single-ended or 2 differential  
- **Interface:** SPI/QSPI/MICROWIRE-compatible serial interface  
- **Power Consumption:**  
  - 2.7mA (operating mode)  
  - 2µA (power-down mode)  
- **Reference Voltage:** Internal 2.5V or external reference (1V to VDD)  
- **Operating Temperature Range:** 0°C to +70°C  
- **Package:** 8-pin SOIC  

### **Descriptions:**
The MAX1243BCSA is a low-power, 12-bit successive approximation ADC with an internal track-and-hold circuit. It is designed for applications requiring high-speed, low-power data conversion with a small footprint. The device operates from a single supply and includes a flexible serial interface for easy microcontroller integration.

### **Features:**
- **Low Power:** Ideal for battery-powered applications.  
- **Internal Reference:** 2.5V reference with ±1% accuracy.  
- **Flexible Input Configuration:** Supports single-ended or differential inputs.  
- **Fast Conversion Time:** 7.5µs per conversion.  
- **SPI-Compatible Interface:** Simplifies digital interfacing.  
- **Small Form Factor:** 8-pin SOIC package saves board space.  

This ADC is commonly used in portable instrumentation, industrial control systems, and data acquisition applications.

Application Scenarios & Design Considerations

+2.7V to %.25V, Low-Power, 10-Bit Serial ADCs in SO-8

Alternative Part Number

  • ADC0832CCN --: 8-bit serial ADC in 8-pin DIP/SOIC with similar SPI interface, widely available and pin-compatible in function for many MAX1243 applications.
  • MCP3202-CI/SN --: 12-bit SPI ADC in 8-pin SOIC offering higher resolution than the MAX1243, with a simple serial interface and good availability.
  • LTC1286CS8 --: 12-bit micropower serial ADC in 8-pin SOIC with similar SPI-compatible interface, suitable as a functional replacement for low-power data acquisition.
  • MCP3202-CI/P --: 12-bit SPI ADC with comparable resolution and serial interface, drop-in functional replacement in most designs needing MAX1243 performance.
  • LTC1286CN8 --: 12-bit serial ADC with similar sampling rate and single 5V supply, suitable alternative when MAX1243 is unavailable.

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