Overview
The LM393DE4, produced by Texas Instruments, is a dual differential comparator integrated circuit. It is part of the next-generation B-version comparators, which include the LM393B and LM2903B. These devices are designed to operate from a single power supply over a wide range of voltages, from 2V to 36V, and can also operate with dual supplies. The LM393DE4 is known for its improved specifications, including lower input offset voltage, lower input bias current, and faster response times compared to its predecessors.
Key Specifications
| Parameter | Test Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Input Offset Voltage (VIO) | VS = 5 to 36V, TA = 25°C | -2.5 | ±0.37 | 2.5 | mV |
| Input Bias Current (IB) | TA = 25°C | -3.5 | -25 | -50 | nA |
| Input Offset Current (IOS) | TA = 25°C | -10 | ±0.5 | 10 | nA |
| Common Mode Range (VCM) | VS = 3 to 36V, TA = 25°C | (V-) to (V+) - 1.5 | V | ||
| Large Signal Differential Voltage Amplification (AVD) | VS = 15V, VO = 1.4V to 11.4V, RL ≥ 15kΩ to (V+) | 50 | 200 | V/mV | |
| Low Level Output Voltage (VOL) | ISINK ≤ 4mA, VID = -1V, TA = 25°C | 110 | 400 | 550 | mV |
| Quiescent Current (IQ) | VS = 5V, no load, TA = 25°C | 400 | 600 | 800 | µA |
| Response Time | VCC = 5V, RL connected to 5V through 5.1kΩ, CL = 15pF | 1.3 | µs |
Key Features
- Improved Specifications: The LM393DE4 features lower input offset voltage, lower input bias current, and faster response times compared to previous versions.
- Wide Supply Voltage Range: Operates from 2V to 36V, with the ability to handle dual supplies.
- Low Input Offset Voltage: Typical input offset voltage of ±0.37mV.
- Low Input Bias Current: Typical input bias current of -25nA.
- Common Mode Input Voltage Range: Includes ground and extends up to VCC - 1.5V.
- Differential Input Voltage Range: Equal to the maximum-rated supply voltage, ±36V.
- Low Output Saturation Voltage: Compatible with TTL, MOS, and CMOS outputs.
- ESD Protection: 2kV ESD rating (HBM).
- Compact Packaging: Available in SOIC and VSSOP packages.
Applications
- Vacuum Robots: Used in control and sensing circuits.
- Single Phase UPS: For voltage monitoring and control.
- Server Power Supplies (PSU): In voltage regulation and monitoring.
- Cordless Power Tools: For battery voltage monitoring.
- Wireless Infrastructure: In various control and monitoring circuits.
- Appliances: In control circuits for home appliances.
- Building Automation: For sensing and control applications.
- Factory Automation & Control: In industrial control systems.
- Motor Drives: For speed and position sensing.
- Infotainment & Cluster Systems: In automotive electronics.
Q & A
- What is the maximum supply voltage for the LM393DE4?
The maximum supply voltage for the LM393DE4 is up to 36V.
- What is the typical input offset voltage of the LM393DE4?
The typical input offset voltage is ±0.37mV.
- What is the common-mode input voltage range for the LM393DE4?
The common-mode input voltage range includes ground and extends up to VCC - 1.5V.
- Is the LM393DE4 compatible with TTL, MOS, and CMOS outputs?
- What is the response time of the LM393DE4?
The response time is typically 1.3µs for a 100mV input step with 5mV overdrive.
- What are the package options for the LM393DE4?
The LM393DE4 is available in SOIC and VSSOP packages.
- Does the LM393DE4 have ESD protection?
- Can the LM393DE4 operate from dual supplies?
- What is the quiescent current of the LM393DE4?
- What are some typical applications of the LM393DE4?
