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MAX197AENI+ from MAXIM,MAXIM - Dallas Semiconductor

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MAX197AENI+

Manufacturer: MAXIM, MAXIM/DALLAS

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

Partnumber Manufacturer Quantity Availability
MAX197AENI+,MAX197AENI MAXIM, MAXIM/DALLAS 19 In Stock

Description and Introduction

Multi-Range (±10V, ±5V, +10V, +5V), Single +5V, 12-Bit DAS with 8+4 Bus Interface The **MAX197AENI+** is a **12-bit data acquisition system (DAS)** from **Maxim Integrated (now part of Analog Devices)**.  

### **Key Specifications:**  
- **Resolution:** 12-bit  
- **Channels:** 8 single-ended or 4 differential analog inputs  
- **Conversion Time:** 6µs (max)  
- **Throughput Rate:** 100ksps  
- **Input Voltage Range:**  
  - **Unipolar:** 0V to +5V  
  - **Bipolar:** ±5V, ±10V (software-selectable)  
- **Interface:** Parallel (8-bit µP-compatible)  
- **Power Supply:** ±5V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 28-pin PDIP  

### **Features:**  
- **On-Chip Track/Hold (T/H) Circuit** – Eliminates the need for an external sample-and-hold.  
- **Programmable Input Range** – Supports unipolar/bipolar modes.  
- **Low Power Consumption** – Typically 135mW.  
- **Internal/External Clock Options** – Flexible timing control.  
- **Software-Configurable** – No external hardware adjustments needed.  
- **Fault-Protected Inputs** – Tolerates up to ±16.5V without damage.  

### **Applications:**  
- Industrial control systems  
- Data acquisition  
- Medical instrumentation  
- Automated test equipment  

This IC is designed for high-speed, high-accuracy analog-to-digital conversion in embedded systems.

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 parallel interface and DIP package, a common drop-in-class alternative for MAX197 designs.
  • LTC1298CN8 --: 12-bit serial ADC with similar resolution and DIP-8 footprint, suitable when the parallel bus can be adapted via glue logic.
  • ADC128S102CIMM --: 12-bit 8-channel ADC with SPI interface and wide availability, a practical substitute when board layout allows serial interfacing.
  • ADS7841E --: 12-bit 4-channel ADC with similar input range and interface, widely available and often used where the MAX197 is unavailable.

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