Overview
The LM2901D is a quad single supply voltage comparator produced by Texas Instruments. This component is part of the LM2901 family, which has been widely used for level detection and low-level sensing applications. However, it is important to note that the LM2901D is no longer in production, and new designs should consider alternative products such as the LM339B or LM2901B, which are the next-generation versions of this comparator family.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SOIC (D) | - |
| Pins | 14 | - |
| Operating Temperature Range | -40 to 125 | °C |
| Supply Voltage | 2 to 36 | V |
| Input Offset Voltage (Max) | 7000 | μV |
| Input Bias Current (Max) | 0.25 | μA |
| Supply Current (Max) | 2.5 | mA |
| Response Time (Typ) | 1.3 | μsec |
| ESD Rating (HBM) | ±2000 | V |
| Output Type | Open-Collector; Open-Drain | - |
Key Features
- Four independent precision voltage comparators designed to operate from a single power supply over a wide range of voltages.
- Low input offset voltage: up to 0.37 mV for B-version and ±1.0 mV for non-B versions.
- Low input bias current: 3.5 nA for B-version and 25 nA for non-B versions.
- Low supply current: 200 µA per comparator for B-version.
- Faster response time: 1 µsec for B-version.
- Extended temperature range: -40°C to 125°C for LM2901B.
- Common-mode input voltage range includes ground, and differential input voltage range equal to maximum-rated supply voltage: ±38 V.
- Low output saturation voltage and output compatible with TTL, MOS, and CMOS.
- Improved ESD performance: 2 kV HBM for B-version.
Applications
- Vacuum robots
- Single-phase UPS
- Server power supplies
- Cordless power tools
- Wireless infrastructure
- Appliances
- Building automation
- Factory automation and control
- Motor drives
- Infotainment and cluster systems.
Q & A
- What is the LM2901D?
The LM2901D is a quad single supply voltage comparator, although it is no longer in production. It is part of the LM2901 family used for level detection and low-level sensing applications.
- Why is the LM2901D no longer in production?
The LM2901D is obsolete, and new designs should consider alternative products like the LM339B or LM2901B, which offer improved specifications.
- What are the key specifications of the LM2901D?
Key specifications include an operating temperature range of -40°C to 125°C, supply voltage of 2 to 36 V, input offset voltage up to 7000 μV, and response time of 1.3 μsec.
- What are the main features of the LM2901D?
Features include low input offset and bias currents, low supply current, fast response time, and compatibility with TTL, MOS, and CMOS outputs.
- What are some common applications for the LM2901D?
Applications include vacuum robots, single-phase UPS, server power supplies, cordless power tools, and various automation and control systems.
- What is the ESD rating of the LM2901D?
The ESD rating for the LM2901D is ±2000 V HBM.
- Is the LM2901D RoHS and REACH compliant?
- What package types are available for the LM2901D?
The LM2901D is available in a 14-pin SOIC package).
- Can the LM2901D be replaced by other comparators?
- What is the typical response time of the LM2901D?
