Overview
The LP2901D, produced by Texas Instruments, is a low-power quadruple differential comparator. This device is designed to operate from a single power supply and is characterized by its ultra-low power consumption, making it suitable for battery-powered applications. The LP2901D consists of four independent voltage comparators and is pin-for-pin compatible with LM239, LM339, and LM2901. It is qualified for automotive applications and operates over a wide temperature range of –40°C to 85°C.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage Range | 3 V to 30 V | V |
| Power-Supply Current | 60 µA (Typical) | µA |
| Input Biasing Current | 3 nA | nA |
| Input Offset Current | ±0.5 nA | nA |
| Input Offset Voltage | ±2 mV | mV |
| Common-Mode Input Voltage | Includes Ground | V |
| Output Voltage Compatibility | MOS and CMOS Logic | |
| Output Sink Current | 30 mA at VO = 2 V (Darlington Mode) | mA |
| Response Time | 8 µs (TTL Logic Swing, Vref = 1.4 V) | µs |
| Operating Temperature Range | –40°C to 85°C | °C |
| Package | SOIC-14 |
Key Features
- Ultra-low power-supply current of 60 µA typical, independent of the power-supply voltage.
- Wide supply-voltage range from 3 V to 30 V.
- Single power-supply operation with the ability to operate from split power supplies.
- Low input biasing current and low input offset voltage.
- Output voltage compatible with MOS and CMOS logic.
- High output sink-current capability, up to 30 mA at VO = 2 V in Darlington mode.
- Pin-for-pin compatible with LM239, LM339, and LM2901.
- Designed to interface with the CMOS logic family.
Applications
- 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 applications due to ultra-low power consumption.
Q & A
- What is the typical power-supply current of the LP2901D?
The typical power-supply current of the LP2901D is 60 µA. - What is the operating temperature range of the LP2901D?
The LP2901D operates from –40°C to 85°C. - Is the LP2901D compatible with CMOS logic?
Yes, the LP2901D is designed to interface with the CMOS logic family. - What is the maximum output sink current of the LP2901D?
The LP2901D can sink up to 30 mA at VO = 2 V in Darlington mode. - What is the input offset voltage of the LP2901D?
The input offset voltage is ±2 mV. - Can the LP2901D operate from split power supplies?
Yes, the LP2901D can operate from split power supplies. - What is the common-mode input voltage range of the LP2901D?
The common-mode input voltage includes ground. - Is the LP2901D pin-for-pin compatible with other comparators?
Yes, it is pin-for-pin compatible with LM239, LM339, and LM2901. - What is the response time of the LP2901D?
The response time is 8 µs for TTL logic swing with Vref = 1.4 V. - What package is the LP2901D available in?
The LP2901D is available in an SOIC-14 package.
