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MAX197ACNI+ from MAXIM,MAXIM - Dallas Semiconductor

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MAX197ACNI+

Manufacturer: MAXIM, MAXIM/DALLAS

Multi-Range (±10V, ±5V, +10V, +5V), Single +5V, 12-Bit DAS with 8+4 Bus Interface

Partnumber Manufacturer Quantity Availability
MAX197ACNI+,MAX197ACNI MAXIM, MAXIM/DALLAS 180 In Stock

Description and Introduction

Multi-Range (±10V, ±5V, +10V, +5V), Single +5V, 12-Bit DAS with 8+4 Bus Interface The MAX197ACNI+ is a 12-bit data acquisition system (DAS) manufactured by Maxim Integrated (now part of Analog Devices). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**
- **Resolution:** 12-bit  
- **Channels:** 8 single-ended or 4 differential analog inputs  
- **Conversion Time:** 6µs (max)  
- **Sampling Rate:** 100ksps (kilo-samples per second)  
- **Input Voltage Range:** ±10V, ±5V, 0 to +10V, or 0 to +5V (software-selectable)  
- **Interface:** Parallel (8-bit µP-compatible)  
- **Supply Voltage:** ±5V  
- **Power Consumption:** 100mW (typical)  
- **Operating Temperature Range:** 0°C to +70°C  
- **Package:** 28-pin PDIP (Plastic Dual In-Line Package)  

### **Descriptions:**
- The MAX197ACNI+ integrates an 8-channel multiplexer, a high-bandwidth track/hold, and a 12-bit successive-approximation ADC (Analog-to-Digital Converter).  
- It features software-selectable input ranges, allowing flexible interfacing with various signal sources.  
- The device includes an internal 4.096V reference, but an external reference can also be used for improved accuracy.  
- It is designed for industrial control, data acquisition, and instrumentation applications.  

### **Features:**
- **8-Channel Multiplexer:** Supports single-ended or differential inputs.  
- **Internal Track/Hold:** Eliminates the need for an external sample-and-hold circuit.  
- **Programmable Input Range:** Allows selection of different voltage ranges (±10V, ±5V, 0 to +10V, or 0 to +5V).  
- **On-Chip Reference:** 4.096V internal reference with ±1% accuracy.  
- **Parallel µP Interface:** Easy interfacing with microprocessors and microcontrollers.  
- **Low Power Consumption:** 100mW typical operation.  
- **Overvoltage Protection:** Tolerant up to ±16.5V on analog inputs.  

This information is based solely on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

Multi-Range (±10V, ±5V, +10V, +5V), Single +5V, 12-Bit DAS with 8+4 Bus Interface

Alternative Part Number

  • AD7874ANZ --: 12-bit 8-channel simultaneous-sampling ADC with comparable throughput and parallel interface, a well-known alternative to the MAX197 in data-acquisition designs.
  • LTC1298CN8 --: 12-bit successive-approximation ADC with similar resolution and DIP package, suitable for lower-speed replacements where full MAX197 features are not required.
  • ADS7841E --: 12-bit 4-channel serial ADC offering similar accuracy and low power, usable as a functional substitute when serial interface is acceptable.

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