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MAX1142ACAP+ from MAXIM/DALLAS,MAXIM - Dallas Semiconductor

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MAX1142ACAP+

Manufacturer: MAXIM/DALLAS, MAXIM

14-Bit ADC, 200ksps, +5V Single-Supply with Reference

Partnumber Manufacturer Quantity Availability
MAX1142ACAP+,MAX1142ACAP MAXIM/DALLAS, MAXIM 114 In Stock

Description and Introduction

14-Bit ADC, 200ksps, +5V Single-Supply with Reference The MAX1142ACAP+ is a 12-bit, 4-channel analog-to-digital converter (ADC) manufactured by Maxim Integrated (formerly Dallas Semiconductor). Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Resolution:** 12-bit  
- **Channels:** 4 single-ended or 2 differential  
- **Conversion Time:** 3µs (max)  
- **Sampling Rate:** 250ksps (max)  
- **Supply Voltage:** +5V (analog), +2.7V to +5.25V (digital)  
- **Power Consumption:** 5.5mW (at 250ksps)  
- **Input Voltage Range:** 0V to VREF (single-ended), ±VREF/2 (differential)  
- **Reference Voltage:** Internal (2.5V) or external (1.25V to VDD)  
- **Interface:** SPI/QSPI/MICROWIRE-compatible serial  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 20-pin SSOP  

### **Descriptions:**  
The MAX1142ACAP+ is a low-power, high-speed, 12-bit ADC with an internal track/hold, voltage reference, and serial interface. It is designed for applications requiring precise analog-to-digital conversion, such as industrial control, data acquisition, and instrumentation.  

### **Features:**  
- **Low Power:** 5.5mW at 250ksps  
- **Internal Reference:** 2.5V ±1%  
- **Flexible Input Configurations:** 4 single-ended or 2 differential channels  
- **High-Speed Serial Interface:** SPI-compatible  
- **Internal Track/Hold:** Eliminates external components  
- **Software-Configurable Unipolar/Bipolar Inputs**  
- **Power-Down Mode:** Reduces power consumption  

This ADC is suitable for battery-powered and space-constrained applications due to its low power consumption and small package size.

Application Scenarios & Design Considerations

14-Bit ADC, 200ksps, +5V Single-Supply with Reference

Alternative Part Number

  • AD7894ARZ-10 --: 14-bit successive-approximation ADC with similar serial interface and 5V supply, pin-compatible in function and widely available as a direct functional substitute.
  • LTC1286CN8 --: 12-bit serial ADC with comparable sampling rate and SPI-compatible interface, suitable drop-in functional replacement for many MAX1142 applications.
  • ADS7841E --: 12-bit 4-channel serial ADC with similar SPI interface and 5V operation, offering equivalent performance for data-acquisition designs.
  • AD7895ARZ-10 --: Similar 12-bit SAR ADC with serial interface and comparable sampling rate, widely available and pin-compatible in function.
  • LTC1286CS8 --: 12-bit serial ADC with similar resolution and SPI-compatible interface, suitable drop-in functional replacement.

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