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MAX1402EAI+ from MAXIM,MAXIM - Dallas Semiconductor

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MAX1402EAI+

Manufacturer: MAXIM, N/A, MAXIM/DALLAS

+5V, 18-Bit, Low-Power, Multichannel, Oversampling (Sigma-Delta) ADC

Partnumber Manufacturer Quantity Availability
MAX1402EAI+,MAX1402EAI MAXIM, N/A, MAXIM/DALLAS 2600 In Stock

Description and Introduction

+5V, 18-Bit, Low-Power, Multichannel, Oversampling (Sigma-Delta) ADC The MAX1402EAI+ is a multichannel, low-power, 16-bit data acquisition system (DAS) manufactured by Maxim Integrated. Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** Maxim Integrated  
- **Part Number:** MAX1402EAI+  
- **Package:** 28-SSOP  
- **Operating Temperature Range:** -40°C to +85°C  
- **Supply Voltage:** 2.7V to 3.6V (Analog), 1.8V to 3.6V (Digital)  
- **Resolution:** 16-bit  
- **Channels:**  
  - 8 single-ended or 4 differential analog inputs  
  - 2 fully differential sensor excitation channels  
- **ADC Type:** Sigma-Delta  
- **Sampling Rate:** Up to 480 samples per second (sps)  
- **Interface:** SPI/QSPI/MICROWIRE-compatible serial interface  
- **Power Consumption:**  
  - 1.5mA (normal mode)  
  - 2µA (power-down mode)  

### **Descriptions:**
The MAX1402EAI+ integrates a high-resolution ADC, programmable gain amplifier (PGA), digital filtering, and sensor excitation sources. It is designed for precision measurement applications, including industrial process control, medical instrumentation, and portable data logging.  

### **Features:**  
- **Low Power Consumption:** Optimized for battery-powered applications.  
- **Programmable Gain Amplifier (PGA):** Gains from 1 to 128.  
- **On-Chip Calibration:** Includes self and system calibration modes.  
- **Digital Filtering:** Programmable for 50Hz/60Hz rejection.  
- **Sensor Excitation:** Two matched current sources (200µA max).  
- **Flexible Input Configuration:** Supports single-ended and differential inputs.  
- **SPI-Compatible Interface:** Simplifies microcontroller interfacing.  

This device is well-suited for applications requiring high accuracy and low power consumption.

Application Scenarios & Design Considerations

+5V, 18-Bit, Low-Power, Multichannel, Oversampling (Sigma-Delta) ADC

Alternative Part Number

  • AD7714ARZ --: Pin-compatible 24-bit sigma-delta ADC with similar serial interface and performance, widely available from an established vendor.
  • ADS1211U --: 24-bit delta-sigma ADC offering comparable resolution and functionality, suitable as a functional replacement with minor layout adjustments.
  • CS5524-ASZ --: Multi-channel 24-bit delta-sigma ADC with similar signal chain characteristics, usable as an alternative with careful design review.
  • LTC2400CS8 --: 24-bit no-latency delta-sigma ADC offering comparable resolution and serial output, suitable for precision measurement applications.
  • CS5532-ASZ --: Low-noise 24-bit delta-sigma ADC with programmable gain, providing similar performance for sensor and instrumentation designs.

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