Overview
The LP2901DRE4 is a low-power quadruple differential comparator produced by Texas Instruments. This device is part of the LP2901 series, which includes the LP239 and LP339, but the LP2901DRE4 is specifically characterized for operation from −40°C to 85°C. Each device consists of four independent voltage comparators designed to operate from a single power supply, drawing an ultra-low power-supply drain current of typically 60 µA over a wide range of voltages from 3 V to 30 V. The LP2901DRE4 is pin-for-pin compatible with the LM239, LM339, and LM2901, making it a versatile component for various applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC) | 3 | 30 | V | |
| Supply Current (ICC) | 60 | 100 | µA | |
| Input Biasing Current | 3 | nA | ||
| Input Offset Current | ±0.5 | nA | ||
| Input Offset Voltage | ±2 | mV | ||
| Common-Mode Input Voltage | 0 | 28 | V | |
| Output Sink Current (VO = 2V) | 30 | mA | ||
| Operating Free-Air Temperature | −40 | 85 | °C | |
| Package Thermal Impedance (θJA) | 86 | °C/W |
Key Features
- Wide supply-voltage range: 3 V to 30 V
- Ultralow power-supply drain current: typically 60 µA
- Low input biasing current: 3 nA
- Low input offset current: ±0.5 nA
- Low input offset voltage: ±2 mV
- Common-mode input voltage includes ground
- Output voltage compatible with MOS and CMOS logic
- High output sink-current capability: 30 mA at VO = 2V
- 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
- Limit comparators
- Simple analog-to-digital converters
- Pulse generators
- Squarewave generators
- Time-delay generators
- Voltage-controlled oscillators
- Multivibrators
- High-voltage logic gates
- Battery-powered applications due to ultra-low power consumption
Q & A
- What is the operating temperature range of the LP2901DRE4?
The LP2901DRE4 operates from −40°C to 85°C.
- What is the typical supply current of the LP2901DRE4?
The typical supply current is 60 µA.
- What is the input biasing current of the LP2901DRE4?
The input biasing current is 3 nA.
- Can the LP2901DRE4 operate from a single power supply?
- What is the output sink current capability of the LP2901DRE4?
The output sink current capability is 30 mA at VO = 2V.
- Is the LP2901DRE4 compatible with CMOS logic?
- What are some common applications of the LP2901DRE4?
- What is the package thermal impedance (θJA) of the LP2901DRE4 in SOIC package?
The package thermal impedance (θJA) is 86°C/W for the SOIC package.
- Is the LP2901DRE4 pin-for-pin compatible with other comparator models?
- What is the common-mode input voltage range of the LP2901DRE4?
The common-mode input voltage range is from 0 V to 28 V when VCC = 30 V.
