LMV393DMR2G

Product Overview

Category: Integrated Circuit (IC)

Use: LMV393DMR2G is a dual low-voltage comparator designed for general-purpose applications. It is commonly used in electronic circuits to compare two voltage inputs and provide a digital output based on the comparison result.

Characteristics: - Low voltage operation - Rail-to-rail input and output capability - Low input bias current - Low propagation delay - Wide supply voltage range - Small package size

Package: LMV393DMR2G is available in a small outline package (SOT-23) which provides compactness and ease of integration into various circuit designs.

Essence: The essence of LMV393DMR2G lies in its ability to accurately compare voltage inputs and generate a digital output, making it suitable for a wide range of applications that require voltage level detection or signal conditioning.

Packaging/Quantity: LMV393DMR2G is typically sold in reels containing 3000 units per reel.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Input Offset Voltage: ±1mV (maximum)
• Input Bias Current: 25nA (typical)
• Propagation Delay: 1.3μs (typical)
• Output Current: 20mA (maximum)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

LMV393DMR2G has a total of six pins arranged as follows:

___________ V- | | Vcc IN- | | OUT IN+ | | GND V+ |___________| NC

• V-: Negative power supply pin
• IN-: Negative voltage input pin
• IN+: Positive voltage input pin
• V+: Positive power supply pin
• OUT: Digital output pin
• GND: Ground pin
• NC: No connection (unused pin)

Functional Features

1. Low Voltage Operation: LMV393DMR2G can operate at low supply voltages, making it suitable for battery-powered applications.

2. Rail-to-Rail Input and Output Capability: The IC supports input and output signals that can swing close to the supply rails, enabling accurate comparisons even with small voltage differences.

3. Low Input Bias Current: LMV393DMR2G exhibits low input bias current, minimizing the impact on the measured signal and reducing errors in voltage comparison.

4. Low Propagation Delay: The comparator has a fast response time, ensuring quick detection and processing of voltage level changes.

5. Wide Supply Voltage Range: It can operate within a wide range of supply voltages, providing flexibility in various circuit designs.

Advantages and Disadvantages

Advantages: - Low voltage operation extends battery life in portable devices. - Rail-to-rail capability allows accurate comparisons even with small voltage differences. - Low input bias current minimizes measurement errors. - Fast propagation delay ensures quick response to voltage changes. - Wide supply voltage range provides design flexibility.

Disadvantages: - Limited output current may restrict certain high-current applications. - SOT-23 package size may limit heat dissipation capabilities in power-intensive circuits.

Working Principles

LMV393DMR2G operates based on the principle of voltage comparison. It compares the voltage levels applied to its input pins (IN+ and IN-) and generates a digital output signal based on the result of this comparison. When the voltage at the IN+ pin is higher than the voltage at the IN- pin, the output goes high (logic level 1), and when the IN- voltage is higher, the output goes low (logic level 0).

Detailed Application Field Plans

LMV393DMR2G finds applications in various fields, including but not limited to: 1. Battery-powered devices: Voltage monitoring and level detection in portable electronics. 2. Sensor interfaces: Signal conditioning and threshold detection for sensor outputs. 3. Industrial automation: Voltage level detection in control systems. 4. Automotive electronics: Overvoltage/undervoltage protection circuits. 5. Power management: Voltage monitoring and fault detection in power supplies.

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to LMV393DMR2G are: 1. LMV339MT/NOPB 2. LMV331IDCKR 3. TLV1701IDBVR 4. MAX9025AUD+ 5. MCP6541T-I/OT

These models offer similar functionality and characteristics, providing options for different design requirements.

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