Overview
The LM339DG4, produced by Texas Instruments, is a quad differential comparator integrated circuit. It is part of the LM339 family, known for its versatility and reliability in various analog and digital applications. This device is designed to operate from a single power supply over a wide range of voltages, making it suitable for a broad spectrum of electronic systems. The LM339DG4 is an enhanced version of the original LM339, offering improved specifications such as lower input offset voltage, lower input bias current, and faster response times.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage | 2 to 36 | V |
| Differential Input Voltage | ±38 | V |
| Input Bias Current (typ / max) | 3.5 / 25 | nA |
| Response Time (typ) | 1 | µsec |
| ESD Rating (HBM) | ±2000 | V |
| Temperature Range | −40 to 85 | °C |
| Total Supply Current (5V to 36V max) | 0.8 to 1 | mA |
| Output Saturation Voltage | Low | - |
| Output Compatibility | TTL, MOS, CMOS | - |
Key Features
- Improved specifications of the B-version, including lower input offset voltage (±5.5 mV max over temp) and lower input bias current (3.5 nA typ / 25 nA max).
- Higher supply voltage capability up to 36 V and extended temperature range (−40°C to 85°C for LM339B).
- Faster response time of 1 µsec and lower supply current (0.8 to 1 mA).
- Enhanced ESD performance with a rating of ±2000 V (HBM).
- Common-mode input voltage range includes ground, and differential input voltage range equal to the maximum-rated supply voltage (±38 V).
- Output compatible with TTL, MOS, and CMOS logic circuits.
Applications
- Vacuum robots and single-phase UPS systems.
- Server power supplies and cordless power tools.
- Wireless infrastructure, appliances, and building automation systems.
- Factory automation and control, motor drives, and infotainment systems.
Q & A
- What is the supply voltage range for the LM339DG4?
The supply voltage range for the LM339DG4 is from 2 V to 36 V.
- What is the typical response time of the LM339DG4?
The typical response time of the LM339DG4 is 1 µsec.
- What is the ESD rating for the LM339DG4?
The ESD rating for the LM339DG4 is ±2000 V (HBM).
- What is the temperature range for the LM339DG4?
The temperature range for the LM339DG4 is −40°C to 85°C.
- Is the output of the LM339DG4 compatible with TTL, MOS, and CMOS logic?
- What are some common applications of the LM339DG4?
The LM339DG4 is commonly used in vacuum robots, single-phase UPS systems, server power supplies, cordless power tools, wireless infrastructure, appliances, building automation, factory automation, motor drives, and infotainment systems.
- How many comparators are included in the LM339DG4?
The LM339DG4 includes four independent voltage comparators.
- What is the typical input bias current of the LM339DG4?
The typical input bias current of the LM339DG4 is 3.5 nA.
- Can the LM339DG4 be used as a drop-in replacement for other LM339 versions?
- What is the common-mode input voltage range for the LM339DG4?
The common-mode input voltage range for the LM339DG4 includes ground and extends up to the maximum-rated supply voltage.
