Overview
The LM2903BIDSGR is a dual comparator integrated circuit produced by Texas Instruments. It is part of the next-generation B-version of the industry-standard LM393 and LM2903 comparator family. These devices are designed to offer improved specifications, including lower offset voltage, higher supply voltage capability, lower supply current, and enhanced ESD performance. The LM2903BIDSGR is a versatile component suitable for a wide range of applications due to its robust features and compatibility with various logic families.
Key Specifications
| Parameter | Test Conditions | Min | Max | Unit | |
|---|---|---|---|---|---|
| Input Offset Voltage (VIO) | VS = 5 to 36V | -2.5 | ±0.37 | 2.5 | mV |
| Input Bias Current (IB) | TA = -40°C to +125°C | -3.5 | -25 | -50 | nA |
| Input Offset Current (IOS) | TA = -40°C to +125°C | -10 | ±0.5 | 10 | nA |
| Common Mode Range (VCM) | VS = 3 to 36V | (V-) to (V+) - 1.5 | V | ||
| Supply Voltage (VS) | 3 | 36 | V | ||
| Operating Temperature Range | -40 | 125 | °C | ||
| Response Time | VCC = 5V, TA = 25°C | 1.3 | µs | ||
| Output Type | Open-Collector, CMOS, MOS, TTL |
Key Features
- Improved specifications of B-version, including lower offset voltage and higher supply voltage capability up to 38V.
- Low input offset voltage: ±0.37mV.
- Low input bias current: 3.5nA.
- Low supply current: 200µA per comparator.
- Faster response time of 1µsec.
- Extended temperature range: -40°C to 125°C.
- Available in tiny 2 x 2mm WSON package.
- B-version is a drop-in replacement for LM293, LM393, and LM2903, 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.
Applications
- Vacuum robots.
- Single-phase UPS systems.
- 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 maximum supply voltage rating for the LM2903BIDSGR?
The maximum supply voltage rating is up to 38V.
- What is the typical input offset voltage of the LM2903BIDSGR?
The typical input offset voltage is ±0.37mV.
- What is the response time of the LM2903BIDSGR?
The response time is typically 1.3µs.
- What are the compatible output types for the LM2903BIDSGR?
The output is compatible with TTL, MOS, and CMOS.
- What is the operating temperature range for the LM2903BIDSGR?
The operating temperature range is -40°C to 125°C.
- Can the LM2903BIDSGR replace older versions of the LM393 and LM2903?
- What is the common-mode input voltage range for the LM2903BIDSGR?
The common-mode input voltage range includes ground and is limited by VCC – 2V.
- What is the ESD rating for the LM2903BIDSGR?
The ESD rating is 2kV (HBM).
- What package options are available for the LM2903BIDSGR?
It is available in 8-WSON (2x2mm) and other surface mount packages.
- What are some typical applications for the LM2903BIDSGR?
Typical applications include vacuum robots, single-phase UPS systems, server power supplies, and more.
