Overview
The LM339PT, produced by STMicroelectronics, is part of the LM339 family of low-power quad voltage comparators. This device consists of four independent precision-voltage comparators designed to operate from a single power supply over a wide range of voltages, or from split power supplies. The LM339PT is notable for its low input bias current, low input offset voltage, and the ability to operate with input common-mode voltage ranges that include ground, even when powered by a single supply voltage.
Key Specifications
| Parameter | Unit | Min. | Typ. | Max. |
|---|---|---|---|---|
| Supply Voltage (VCC) | V | +2 | - | +36 or ±1 to ±18 |
| Supply Current (ICC) | mA | 1.1 | 1.3 | 2.5 |
| Input Bias Current (IIB) | nA | 25 | 100 | 300 |
| Input Offset Current (IIO) | nA | ±5 | 25 | 100 |
| Input Offset Voltage (VIO) | mV | ±1 | 2 | 4 |
| Input Common-Mode Voltage Range (VICM) | V | 0 | - | VCC + -1.5 |
| Low Level Output Voltage (VOL) | mV | 250 | - | 700 |
| Output Sink Current (ISINK) | mA | 6 | - | 16 |
| Response Time (tre) | μs | 1.3 | - | - |
Key Features
- Wide single supply voltage range or dual supplies: +2 to +36 V or ±1 V to ±18 V
- Very low supply current (1.1 mA) independent of supply voltage
- Low input bias current: 25 nA typical
- Low input offset current: ±5 nA typical
- Low input offset voltage: ±1 mV typical
- Input common-mode voltage range includes ground
- Low output saturation voltage: 250 mV typical (ISINK = 4 mA)
- Differential input voltage range equal to the supply voltage
- TTL, DTL, ECL, MOS, CMOS compatible outputs
Applications
- Basic comparator circuits
- Driving CMOS, TTL, DTL, ECL, and MOS logic circuits
- Low-frequency op-amp configurations
- Transducer amplifiers
- Zero-crossing detectors
- Limit comparators
- Crystal-controlled oscillators
Q & A
- What is the supply voltage range for the LM339PT? The supply voltage range is +2 to +36 V or ±1 V to ±18 V.
- What is the typical supply current for the LM339PT? The typical supply current is 1.1 mA.
- What is the input bias current for the LM339PT? The input bias current is 25 nA typical.
- What is the input offset voltage for the LM339PT? The input offset voltage is ±1 mV typical.
- Can the LM339PT operate with input common-mode voltage including ground? Yes, the input common-mode voltage range includes ground.
- What is the low level output voltage for the LM339PT? The low level output voltage is 250 mV typical (ISINK = 4 mA).
- Is the LM339PT compatible with various logic families? Yes, it is compatible with TTL, DTL, ECL, MOS, and CMOS logic families.
- What are some common applications of the LM339PT? Common applications include basic comparator circuits, driving logic circuits, low-frequency op-amp configurations, transducer amplifiers, zero-crossing detectors, limit comparators, and crystal-controlled oscillators.
- What are the available package types for the LM339PT? The available package types are SO14, TSSOP14, and QFN16 3x3.
- Is the LM339PT RoHS compliant? Yes, the LM339PT is RoHS compliant with an Ecopack3 grade.
