Overview
The LM2901DR, produced by Texas Instruments, is a quad differential comparator that belongs to the next generation B-version of the industry-standard LM339 and LM2901 comparator family. These comparators are designed to operate from a single power supply over a wide range of voltages, making them versatile for various applications. The LM2901DR features improved specifications, including lower offset voltage, higher supply voltage capability, lower supply current, and lower input bias current, among other enhancements.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SOIC (D) | - |
| Pins | 14 | - |
| Operating Temperature Range | -40 to 125 | °C |
| Maximum Rating | Up to 38 | V |
| ESD Rating (HBM) | 2k | V |
| Input Offset Voltage | 0.37 | mV |
| Input Bias Current | 3.5 | nA |
| Supply Current per Comparator | 200 | µA |
| Response Time | 1 | µsec |
| Differential Input Voltage Range | ±38 | V |
| Output Saturation Voltage | Low | - |
| Output Compatibility | TTL, MOS, CMOS | - |
Key Features
- Improved specifications of B-version, including lower offset voltage and higher supply voltage capability.
- Low input offset voltage of 0.37 mV.
- Low input bias current of 3.5 nA.
- Low supply current of 200 µA per comparator.
- Faster response time of 1 µsec.
- Extended temperature range.
- Drop-in replacement for LM239, LM339, and LM2901 A and V versions.
- Common-mode input voltage range includes ground.
- Differential input voltage range equal to maximum-rated supply voltage (±38 V).
- Low output saturation voltage.
- Output compatible with TTL, MOS, and CMOS.
- Improved 2 kV ESD performance and input ruggedness through dedicated ESD clamps.
Applications
The LM2901DR is suitable for a wide range of applications due to its versatility and improved specifications. Some common applications include:
- Analog-to-digital converters.
- Threshold detectors.
- Window comparators.
- Level detectors.
- Line receivers.
- Instrumentation and measurement systems.
Q & A
- What is the maximum supply voltage rating for the LM2901DR?
The maximum supply voltage rating for the LM2901DR is up to 38 V.
- What is the input offset voltage of the LM2901DR?
The input offset voltage of the LM2901DR is 0.37 mV.
- What is the typical response time of the LM2901DR?
The typical response time of the LM2901DR is 1 µsec.
- Is the LM2901DR compatible with TTL, MOS, and CMOS outputs?
Yes, the LM2901DR is compatible with TTL, MOS, and CMOS outputs.
- What is the operating temperature range for the LM2901DR?
The operating temperature range for the LM2901DR is -40°C to 125°C.
- Can the LM2901DR replace older versions of comparators?
Yes, the LM2901DR can drop-in replace the LM239, LM339, and LM2901 A and V versions.
- What is the ESD rating (HBM) for the LM2901DR?
The ESD rating (HBM) for the LM2901DR is 2 kV.
- How many independent voltage comparators does the LM2901DR contain?
The LM2901DR contains four independent voltage comparators.
- What is the typical input bias current of the LM2901DR?
The typical input bias current of the LM2901DR is 3.5 nA.
- What is the supply current per comparator for the LM2901DR?
The supply current per comparator for the LM2901DR is 200 µA.
