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MAX991EUA from MAXIM,MAXIM - Dallas Semiconductor

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MAX991EUA

Manufacturer: MAXIM, MAX

High-Speed, Micropower, Low-Voltage, SOT23, Rail-to-Rail I/O Comparators

Partnumber Manufacturer Quantity Availability
MAX991EUA MAXIM, MAX 2360 In Stock

Description and Introduction

High-Speed, Micropower, Low-Voltage, SOT23, Rail-to-Rail I/O Comparators The MAX991EUA is a precision, high-side current-sense amplifier manufactured by **MAXIM Integrated** (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Supply Voltage Range:** +2.7V to +28V  
- **Input Common-Mode Voltage Range:** +1.2V to +28V  
- **Gain Accuracy:** ±0.5% (max)  
- **Gain Options:** 5V/V, 20V/V, 50V/V, 100V/V  
- **Bandwidth:** 500kHz (typical)  
- **Quiescent Current:** 100µA (typical)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 8-pin µMAX (MSOP)  

### **Descriptions:**  
The MAX991EUA is designed for high-side current sensing in applications such as battery monitoring, power management, and motor control. It provides accurate current measurements across a wide common-mode voltage range while consuming minimal power.  

### **Features:**  
- **Wide Input Common-Mode Range:** Operates from +1.2V to +28V.  
- **Low Offset Voltage:** ±100µV (max) for precise measurements.  
- **Low Power Consumption:** 100µA typical supply current.  
- **Fixed Gain Options:** Eliminates the need for external resistors.  
- **Small Footprint:** 8-pin µMAX package for space-constrained designs.  
- **High Accuracy:** ±0.5% gain error ensures reliable performance.  
- **Reverse Battery Protection:** Tolerates -5V to +28V at input.  

The MAX991EUA is suitable for automotive, industrial, and portable electronics requiring high-side current monitoring.

Application Scenarios & Design Considerations

High-Speed, Micropower, Low-Voltage, SOT23, Rail-to-Rail I/O Comparators

Alternative Part Number

  • LM393AM --: Dual comparator with similar open-collector output and supply range, widely available and pin-compatible in many applications.
  • LM293N --: Dual voltage comparator offering comparable performance and supply voltage range, a common drop-in substitute.
  • TLV3201AIDBVR --: Low-power dual comparator with rail-to-rail inputs, suitable modern replacement when lower power consumption is desired.
  • LM293AN --: Dual voltage comparator offering comparable response time and input offset, suitable drop-in replacement for general comparator applications.
  • LM393N --: Dual comparator with similar open-collector output and supply range, widely available and pin-compatible in function.
  • LM2903N --: Dual differential comparator covering the same supply voltage range, a common drop-in functional replacement.

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