Overview
The LM339ADR2, produced by onsemi, is a quad comparator integrated circuit designed for a wide range of applications in consumer, automotive, and industrial electronics. This device is part of the LM339 family, known for its versatility and reliability in level detection, low-level sensing, and memory applications.
The LM339ADR2 operates with either a single supply voltage from 3.0 V to 36 V or a split supply voltage from ±1.5 V to ±18 V, making it adaptable to various system requirements. It features low input bias and offset currents, as well as low output saturation voltage, ensuring high accuracy and efficiency in signal comparison tasks.
Key Specifications
| Characteristic | Symbol | Unit | Min | Typ | Max |
|---|---|---|---|---|---|
| Power Supply Voltage | VCC | Vdc | 3.0 | - | 36 or ±18 |
| Input Differential Voltage Range | VIDR | Vdc | - | - | 36 or 30 |
| Input Common Mode Voltage Range | VICMR | Vdc | 0 | - | VCC - 1.5 |
| Input Offset Voltage | VIO | mVdc | - | ±2.0 | ±5.0 |
| Input Bias Current | IIB | nA | - | 25 | 250 |
| Input Offset Current | IIO | nA | - | ±5.0 | ±50 |
| Output Saturation Voltage | Vsat | mV | 130 | - | 400 |
| Output Sink Current | ISink | mA | 6.0 | - | 16 |
| Operating Ambient Temperature Range | TA | °C | 0 | - | 70 |
Key Features
- Single and Split Supply Operation: The LM339ADR2 can operate with a single supply voltage from 3.0 V to 36 V or a split supply voltage from ±1.5 V to ±18 V.
- Low Input Bias and Offset Currents: Features low input bias current (25 nA typ) and low input offset current (±5.0 nA typ), ensuring high accuracy in signal comparison.
- Low Output Saturation Voltage: Offers a low output saturation voltage of 130 mV (typ) at 4.0 mA, which is beneficial for low-power applications.
- TTL and CMOS Compatibility: The output is compatible with TTL, MOS, and CMOS logic, making it versatile for various digital systems.
- ESD Protection: Includes ESD clamps on the inputs to increase reliability without affecting device operation.
- Wide Operating Temperature Range: Operates over a temperature range of 0°C to 70°C, suitable for a variety of environmental conditions.
Applications
- Level Detection and Low-Level Sensing: Ideal for detecting voltage levels and sensing low-level signals in various electronic circuits.
- Memory Applications: Used in memory circuits to compare and detect specific voltage levels.
- Consumer Electronics: Found in consumer devices such as audio equipment, home appliances, and other electronic gadgets.
- Automotive Electronics: Used in automotive systems for sensor signal processing and other control functions.
- Industrial Electronics: Applied in industrial control systems, automation, and monitoring equipment.
Q & A
- What is the operating voltage range of the LM339ADR2?
The LM339ADR2 can operate with a single supply voltage from 3.0 V to 36 V or a split supply voltage from ±1.5 V to ±18 V.
- What is the typical input bias current of the LM339ADR2?
The typical input bias current is 25 nA.
- What is the output saturation voltage of the LM339ADR2?
The output saturation voltage is typically 130 mV at 4.0 mA.
- Is the LM339ADR2 compatible with TTL and CMOS logic?
Yes, the output of the LM339ADR2 is compatible with TTL, MOS, and CMOS logic.
- What is the operating temperature range of the LM339ADR2?
The operating temperature range is from 0°C to 70°C.
- Does the LM339ADR2 have ESD protection?
Yes, it includes ESD clamps on the inputs to increase reliability.
- What are some common applications of the LM339ADR2?
Common applications include level detection, low-level sensing, memory applications, consumer electronics, automotive electronics, and industrial electronics.
- What is the input common mode voltage range of the LM339ADR2?
The input common mode voltage range is from 0 to VCC - 1.5 V.
- What is the typical response time of the LM339ADR2?
The typical response time is 1.3 microseconds.
- Is the LM339ADR2 suitable for automotive applications?
Yes, it is suitable for automotive applications, especially the NCV2901 version which is qualified for automotive use.
