Overview
The LM339AN/PB is a quad voltage comparator integrated circuit produced by National Semiconductor, now part of Texas Instruments. This device is renowned for its high precision and versatility in various electronic applications. It features four independent comparators, each capable of operating over a wide supply voltage range and interfacing directly with multiple logic families including TTL, DTL, ECL, MOS, and CMOS. The LM339AN/PB is particularly advantageous due to its low power consumption and high input impedance, making it suitable for a broad range of analog and digital circuits.
Key Specifications
| Parameter | Conditions | Min | Typ | Max |
|---|---|---|---|---|
| Input Offset Voltage | V+=5 VDC, TA = 25°C | 1.0 mV | 2.0 mV | 5.0 mV |
| Input Bias Current | VCM=0V | 25 nA | 100 nA | 250 nA |
| Input Offset Current | VCM=0V | 3.0 nA | 25 nA | 50 nA |
| Supply Current | RL = ∞, V+ = 36V | 0.8 mA | 2.0 mA | 2.5 mA |
| Input Common-Mode Voltage Range | V+ = 30 VDC | 0 V | - | V+ - 1.5 V |
| Differential Input Voltage Range | - | - | - | 36 VDC |
| Output Saturation Voltage | VO = 30 VDC, IO = 4 mA | - | - | 250 mV |
| Temperature Range | - | 0°C | - | 70°C |
Key Features
- Wide supply voltage range: 2 to 36 VDC or ±1 to ±18 VDC
- Low supply current drain: 0.8 mA independent of supply voltage
- Low input biasing current: 25 nA
- Low input offset current: ±5 nA
- High precision comparators with reduced VOS drift over temperature
- Output voltage compatible with TTL, DTL, ECL, MOS, and CMOS logic systems
- High-speed operation with rail-to-rail inputs and push-pull output stage
- Improved ESD performance and input ruggedness
Applications
The LM339AN/PB is versatile and can be used in a variety of applications, including:
- Analog-to-digital converters and digital-to-analog converters
- Threshold detectors and window comparators
- Level detectors and zero-crossing detectors
- Power supply monitoring and voltage regulation circuits
- Industrial control systems and automation
Q & A
- What is the input offset voltage of the LM339AN/PB?
The input offset voltage is as low as 1.0 mV and typically 2.0 mV, with a maximum of 5.0 mV. - What is the supply current of the LM339AN/PB?
The supply current is typically 0.8 mA and can go up to 2.5 mA depending on the supply voltage. - Can the LM339AN/PB interface with multiple logic families?
Yes, it can directly interface with TTL, DTL, ECL, MOS, and CMOS logic systems. - What is the differential input voltage range of the LM339AN/PB?
The differential input voltage range is equal to the power supply voltage, up to 36 VDC. - What is the output saturation voltage of the LM339AN/PB?
The output saturation voltage is 250 mV at 4 mA. - What is the temperature range for the LM339AN/PB?
The temperature range is from 0°C to 70°C. - Does the LM339AN/PB have ESD protection?
Yes, it features improved ESD performance and input ruggedness. - Can the LM339AN/PB be used in high-speed applications?
Yes, it offers high-speed operation with rail-to-rail inputs and a push-pull output stage. - What are some common applications of the LM339AN/PB?
Common applications include analog-to-digital converters, threshold detectors, level detectors, power supply monitoring, and industrial control systems. - Is the LM339AN/PB compatible with both single and dual power supplies?
Yes, it can operate from both single and dual power supplies, ranging from 2 to 36 VDC or ±1 to ±18 VDC.
