Overview
The LM2901DE4, produced by Texas Instruments, is a quad differential comparator integrated circuit. It is part of the next-generation B-version comparators, which offer improved specifications over their predecessors. These devices are designed to operate from a single power supply over a wide range of voltages, making them versatile for various applications. The LM2901DE4 is particularly noted for its low input offset voltage, low input bias current, and low supply current, along with enhanced ESD performance and input ruggedness.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage | 2 to 36 | V |
| Differential Input Voltage | ±38 | V |
| Input Offset Voltage (Max over temp) | ±0.37 | mV |
| Input Bias Current (typ/max) | 3.5 / 25 | nA |
| Supply Current per Comparator | 200 | µA |
| Response Time (typ) | 1 | µsec |
| ESD Rating (HBM) | 2k | V |
| Operating Temperature Range | -40 to 125 | °C |
| Output Compatibility | TTL, MOS, CMOS | |
| Package Type | SOIC (D) | |
| Pins | 14 |
Key Features
- Improved specifications of B-version comparators, including lower offset voltage, higher supply voltage capability, lower supply current, and lower input bias current.
- Maximum rating up to 38 V and ESD rating (HBM) of 2k V.
- Low input offset voltage of 0.37 mV and low input bias current of 3.5 nA.
- Faster response time of 1 µsec.
- Extended temperature range from -40°C to 125°C for the LM2901B version.
- Common-mode input voltage range includes ground, and differential input voltage range equal to the maximum-rated supply voltage.
- Low output saturation voltage and output compatibility with TTL, MOS, and CMOS.
- Drop-in replacement for LM239, LM339, and LM2901 A and V versions.
Applications
The LM2901DE4 is suitable for a variety of applications due to its robust and versatile design. Some common applications include:
- Analog-to-digital converters and digital-to-analog converters.
- Threshold detectors and window comparators.
- Zero-crossing detectors and pulse generators.
- Level detection and signal conditioning in industrial and automotive systems.
- Medical devices requiring precise voltage comparisons.
Q & A
- What is the maximum supply voltage for the LM2901DE4?
The maximum supply voltage for the LM2901DE4 is up to 38 V.
- What is the typical response time of the LM2901DE4?
The typical response time of the LM2901DE4 is 1 µsec.
- What is the ESD rating of the LM2901DE4?
The ESD rating of the LM2901DE4 is 2k V (HBM).
- What is the operating temperature range of the LM2901DE4?
The operating temperature range of the LM2901DE4 is from -40°C to 125°C.
- Is the LM2901DE4 compatible with TTL, MOS, and CMOS outputs?
- Can the LM2901DE4 be used as a drop-in replacement for other comparator models?
- What is the typical input bias current of the LM2901DE4?
- What is the package type of the LM2901DE4?
- What is the common-mode input voltage range of the LM2901DE4?
- What is the differential input voltage range of the LM2901DE4?
