Overview
The LM339ADBR is a quad differential comparator integrated circuit produced by Texas Instruments. It is part of the LM339 family, which is widely used in various applications due to its robust specifications and versatility. The LM339ADBR is an improved version, known as the B-version, offering enhanced performance and reliability compared to its predecessors.
This device consists of four independent voltage comparators designed to operate from a single power supply over a wide range of voltages. It is suitable for a variety of applications requiring precise voltage comparison and is known for its low input offset voltage, low input bias current, and fast response time.
Key Specifications
| Parameter | LM339B (LM339ADBR) | Units |
|---|---|---|
| Supply Voltage | 2 to 36 | V |
| Total Supply Current (5V to 36V max) | 0.8 to 1 | mA |
| Temperature Range | −40 to 85 | °C |
| ESD Rating (HBM) | ±2000 | V |
| Offset Voltage (Max over temp) | ±5.5 | mV |
| Input Bias Current (typ / max) | 3.5 / 25 | nA |
| Response Time (typ) | 1 | µsec |
| Differential Input Voltage Range | ±38 | V |
| Output Saturation Voltage | Low | - |
| Output Compatibility | TTL, MOS, CMOS | - |
Key Features
- Improved specifications of B-version, including lower offset voltage and higher supply voltage capability.
- Low input offset voltage: up to ±5.5 mV.
- Low input bias current: 3.5 nA (typical).
- Low supply current: 0.8 to 1 mA.
- Faster response time: 1 µsec (typical).
- Extended temperature range: −40°C to 85°C for LM339B.
- Common-mode input voltage range includes ground.
- Differential input voltage range equal to maximum-rated supply voltage: ±38 V.
- Low output saturation voltage.
- Output compatible with TTL, MOS, and CMOS.
- ESD rating (HBM): ±2000 V.
Applications
- Vacuum robots
- Single-phase UPS systems
- Server power supplies
- Cordless power tools
- Wireless infrastructure
- Appliances
- Building automation
- Factory automation and control
- Motor drives
- Infotainment and cluster systems
Q & A
- What is the supply voltage range for the LM339ADBR?
The supply voltage range for the LM339ADBR is from 2 V to 36 V.
- What is the typical response time of the LM339ADBR?
The typical response time of the LM339ADBR is 1 µsec.
- What is the ESD rating (HBM) for the LM339ADBR?
The ESD rating (HBM) for the LM339ADBR is ±2000 V.
- What is the input bias current of the LM339ADBR?
The input bias current of the LM339ADBR is 3.5 nA (typical) and up to 25 nA (maximum).
- Is the output of the LM339ADBR compatible with other logic families?
Yes, the output of the LM339ADBR is compatible with TTL, MOS, and CMOS logic families.
- What is the temperature range for the LM339ADBR?
The temperature range for the LM339ADBR is −40°C to 85°C.
- Can the LM339ADBR be used in safety-critical applications?
While the LM339ADBR has robust specifications, it is important to consult the datasheet and relevant safety standards before using it in safety-critical applications.
- What are some common applications of the LM339ADBR?
The LM339ADBR is commonly used in vacuum robots, single-phase UPS systems, server power supplies, cordless power tools, and various automation and control systems.
- Is the LM339ADBR a drop-in replacement for other LM339 versions?
Yes, the LM339ADBR (B-version) is a drop-in replacement for the LM239, LM339, and LM2901, for both 'A' and 'V' grades.
- What is the differential input voltage range for the LM339ADBR?
The differential input voltage range for the LM339ADBR is equal to the maximum-rated supply voltage, which is ±38 V.
