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MAX1400CAI+ from MAXIM,MAXIM - Dallas Semiconductor

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MAX1400CAI+

Manufacturer: MAXIM, MAXIM/DALLAS

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

Partnumber Manufacturer Quantity Availability
MAX1400CAI+,MAX1400CAI MAXIM, MAXIM/DALLAS 32 In Stock

Description and Introduction

+5V 18-Bit Low-Power Multichannel Oversampling (Sigma-Delta) ADC The MAX1400CAI+ is a multichannel data acquisition system (DAS) manufactured by **MAXIM Integrated** (now part of Analog Devices). Below are its key specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:

### **Specifications:**  
- **Manufacturer:** MAXIM Integrated  
- **Part Number:** MAX1400CAI+  
- **Package:** 28-pin SSOP (Shrink Small Outline Package)  
- **Operating Temperature Range:** **0°C to +70°C** (Commercial Grade)  
- **Supply Voltage:** **±2.5V to ±5.25V** (Dual Supply) or **+2.7V to +5.25V** (Single Supply)  
- **Resolution:** **18-bit** (Sigma-Delta ADC)  
- **Channels:**  
  - **8 fully differential** or **16 single-ended** analog input channels  
  - **2 fully differential** current-sense channels  
- **Sampling Rate:** Up to **480 samples per second (sps)**  
- **Interface:** **SPI/QSPI™/MICROWIRE™-compatible serial interface**  
- **Power Consumption:**  
  - **1.3mA** (Normal Mode)  
  - **2µA** (Power-Down Mode)  

### **Descriptions:**  
- The MAX1400CAI+ is a **low-power, multichannel DAS** with an integrated **18-bit sigma-delta ADC**, **PGA (Programmable Gain Amplifier)**, and **digital filter**.  
- It is designed for **high-precision sensor measurement** in industrial, medical, and instrumentation applications.  
- Includes **on-chip calibration** for offset and gain error correction.  
- Supports **bipolar/unipolar** input ranges.  

### **Features:**  
- **High-resolution ADC (18-bit)** with low noise.  
- **Programmable Gain (PGA) from 1 to 128** for signal conditioning.  
- **Flexible input configuration** (differential/single-ended).  
- **Low-power operation** with power-down mode.  
- **On-chip calibration** for improved accuracy.  
- **SPI-compatible serial interface** for easy microcontroller interfacing.  
- **Current-sense channels** for shunt-resistor measurements.  

This information is based solely on the manufacturer's datasheet and technical documentation. No additional guidance or suggestions are included.

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 used as a direct substitute for the MAX1400.
  • LTC2400CS8 --: 24-bit no-latency delta-sigma ADC offering comparable resolution and low-noise performance for precision measurement applications.
  • CS5532-ASZ --: Low-noise 24-bit delta-sigma ADC with similar functionality and serial output, suitable as an alternative in high-resolution sensing designs.
  • AD7710ANZ --: Pin-compatible 24-bit sigma-delta ADC with similar serial interface and performance, widely used as a direct substitute for the MAX1400.
  • ADS1210U --: 24-bit delta-sigma ADC offering comparable resolution and serial output, suitable replacement when board layout allows the different package.
  • CS5524-ASZ --: Multi-channel 24-bit delta-sigma ADC with similar functionality and accuracy, usable as an alternative with minor circuit adjustments.

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