Overview
The LP339DRE4 from Texas Instruments is a General Purpose Comparator IC, part of the Linear product category. This CMOS comparator is designed for general purpose applications where accurate signal comparison with minimal power consumption is essential. It features four independent voltage comparators, each capable of operating from a single power supply or split supplies, and draws a typically low power supply current of 60 µA over a wide range of voltages.
Key Specifications
| Parameter | Value | Description |
|---|---|---|
| Product Category | Analog Comparators | |
| Mounting Style | SMD/SMT | |
| Package/Case | SOIC-14 | |
| Number of Channels | 4 Channel | |
| Response Time | 8 us | |
| Comparator Type | General Purpose | |
| Supply Voltage - Min | 5 V | |
| Supply Voltage - Max | 30 V | |
| Operating Supply Current | 100 uA | |
| Output Current per Channel | 20 mA | |
| Vos - Input Offset Voltage | 5 mV | |
| Ib - Input Bias Current | 25 nA | |
| Minimum Operating Temperature | 0 C | |
| Maximum Operating Temperature | + 70 C | |
| Dual Supply Voltage | +/- 3 V, +/- 5 V, +/- 9 V, +/- 12 V | |
| Height | 1.58 mm | |
| Length | 8.65 mm | |
| Width | 3.91 mm | |
| Unit Weight | 0.004318 oz |
Key Features
- Comparator with ultra-low input offset voltage (±2 mV)
- High common-mode rejection ratio (CMRR)
- Low quiescent current (60 µA)
- Open-collector output stage for low-power consumption and noise-free operation
- High input impedance and excellent noise immunity
- Single supply operation with a wide supply-voltage range (3 V to 30 V)
- Compatible with CMOS logic family
- High output sink current capability (30 mA at VO=2 VDC)
- Power supply input protected against reverse voltages
Applications
- Data converters
- Amplifiers
- Sensor interfaces
- Instrumentation devices
- Industrial control systems
- Limit comparators
- Simple analog-to-digital converters
- Pulse, square, and time delay generators
- Voltage-controlled oscillators (VCOs)
- Multivibrators
- High-voltage logic gates
- Battery-powered applications due to ultra-low power consumption
Q & A
- What is the LP339DRE4 used for?
The LP339DRE4 is used for general purpose comparator applications, including data converters, amplifiers, sensor interfaces, and industrial control systems.
- What is the typical power supply current of the LP339DRE4?
The typical power supply current of the LP339DRE4 is 60 µA.
- What is the input offset voltage of the LP339DRE4?
The input offset voltage of the LP339DRE4 is ±2 mV.
- What is the operating temperature range of the LP339DRE4?
The operating temperature range of the LP339DRE4 is from 0°C to 70°C.
- Can the LP339DRE4 operate from a single power supply?
Yes, the LP339DRE4 can operate from a single power supply with a wide supply-voltage range (3 V to 30 V).
- What is the output current capability of the LP339DRE4?
The LP339DRE4 has a high output sink current capability of 30 mA at VO=2 VDC.
- Is the LP339DRE4 compatible with CMOS logic family?
Yes, the LP339DRE4 is compatible with the CMOS logic family.
- What is the package type of the LP339DRE4?
The LP339DRE4 comes in a SOIC-14 package.
- How many independent comparators does the LP339DRE4 have?
The LP339DRE4 has four independent voltage comparators.
- What are some common applications of the LP339DRE4 in terms of signal generation?
The LP339DRE4 is used in applications such as pulse, square, and time delay generators, and voltage-controlled oscillators (VCOs).
