Overview
The LP339DR, produced by Texas Instruments, is a low-power quadruple differential comparator. This device is part of the LP339 series and is designed to operate from a single power supply, making it highly versatile and energy-efficient. The LP339DR consists of four independent voltage comparators, each capable of operating over a wide range of voltages from 3 V to 30 V. It is particularly suited for applications requiring ultra-low power consumption, such as battery-powered devices.
Key Specifications
| Parameter | Typical Value | Minimum Value | Maximum Value | Unit |
|---|---|---|---|---|
| Supply Voltage Range | - | 3 V | 30 V | V |
| Supply Current (ICC) | 60 µA | - | 100 µA | µA |
| Input Biasing Current | 3 nA | - | - | nA |
| Input Offset Current | ±0.5 nA | - | - | nA |
| Input Offset Voltage | ±2 mV | - | - | mV |
| Output Sink Current (VO = 2 V) | 30 mA | - | - | mA |
| Operating Temperature Range | - | 0°C | 70°C | °C |
| Response Time (TTL Logic Swing) | 8 µs | 1.3 µs | - | µs |
| Package Type | - | - | 14-SOIC | - |
Key Features
- Wide supply-voltage range from 3 V to 30 V
- Ultralow power supply current drain of 60 µA typical
- Low input biasing current of 3 nA
- Low input offset current of ±0.5 nA and low input offset voltage of ±2 mV
- Common-mode input voltage includes ground
- Output voltage compatible with MOS and CMOS logic
- High output sink-current capability of 30 mA at VO = 2 V
- Power supply input reverse-voltage protected
- Single-power-supply operation with the ability to operate from split power supplies
- Pin-for-pin compatible with LM239, LM339, and LM2901
Applications
The LP339DR is versatile and can be used in a variety of applications, including:
- Limit comparators
- Simple analog-to-digital converters
- Pulse generators
- Square-wave generators
- Time-delay generators
- Voltage-controlled oscillators
- Multivibrators
- High-voltage logic gates
- Battery-powered devices due to its ultra-low power consumption
Q & A
- What is the supply voltage range of the LP339DR?
The LP339DR operates over a supply voltage range from 3 V to 30 V.
- What is the typical supply current of the LP339DR?
The typical supply current is 60 µA.
- What is the input biasing current of the LP339DR?
The input biasing current is 3 nA.
- What is the input offset voltage of the LP339DR?
The input offset voltage is ±2 mV.
- Can the LP339DR operate with MOS and CMOS logic?
- What is the maximum output sink current of the LP339DR?
The maximum output sink current is 30 mA at VO = 2 V.
- Is the LP339DR protected against power supply input reverse-voltage?
- What are the operating temperature ranges for the LP339DR?
The operating temperature range is from 0°C to 70°C.
- What is the response time of the LP339DR for TTL logic swing?
The response time is typically 8 µs.
- In what package type is the LP339DR available?
The LP339DR is available in a 14-SOIC package.
