Overview
The LM2903PWR is a dual differential comparator integrated circuit produced by Texas Instruments. It is part of the next-generation B-version comparators, which offer improved specifications over their predecessors. This device is designed to operate from a single power supply over a wide range of voltages and consists of two independent voltage comparators. The LM2903PWR is a drop-in replacement for earlier versions such as the LM293, LM393, and LM2903, making it a versatile choice for various applications.
Key Specifications
| Parameter | Test Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Input Offset Voltage (VIO) | VS = 5 to 36V, TA = 25°C | -2.5 | ±0.37 | 2.5 | mV |
| Input Bias Current (IB) | TA = 25°C | -3.5 | -25 | -50 | nA |
| Input Offset Current (IOS) | TA = 25°C | -10 | ±0.5 | 10 | nA |
| Common Mode Input Voltage Range (VICR) | VS = 3 to 36V, TA = 25°C | 0 | - | VCC - 1.5 | V |
| Supply Current (ICC) | RL = ∞, VCC = 5V, TA = 25°C | 0.8 | 1 | 2.5 | mA |
| Propagation Delay Time | RL = 5.1kΩ, VRL = 5V, CL = 15pF, TA = 25°C | 1.3 | - | - | μs |
| Operating Temperature Range | - | -40 | - | 125 | °C |
| ESD Rating (HBM) | - | - | - | 2kV | - |
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 and TSSOP8 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.
- Improved 2 kV ESD performance and input ruggedness through dedicated ESD clamps.
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 for the LM2903PWR?
The maximum supply voltage for the LM2903PWR is up to 38V.
- What is the typical input offset voltage of the LM2903PWR?
The typical input offset voltage is ±0.37mV.
- What is the input bias current of the LM2903PWR?
The input bias current is typically -25nA.
- What is the propagation delay time of the LM2903PWR?
The propagation delay time is typically 1.3µs.
- What is the operating temperature range of the LM2903PWR?
The operating temperature range is -40°C to 125°C.
- Is the LM2903PWR compatible with TTL, MOS, and CMOS outputs?
Yes, the LM2903PWR is compatible with TTL, MOS, and CMOS outputs.
- What is the ESD rating of the LM2903PWR?
The ESD rating is 2kV (HBM).
- Can the LM2903PWR be used as a drop-in replacement for other comparators?
Yes, the LM2903PWR can be used as a drop-in replacement for LM293, LM393, and LM2903, A and V versions.
- What are the common-mode input voltage range and differential input voltage range of the LM2903PWR?
The common-mode input voltage range includes ground, and the differential input voltage range is equal to the maximum-rated supply voltage: ±38 V.
- What package options are available for the LM2903PWR?
The LM2903PWR is available in TSSOP8 and tiny 2 x 2mm WSON packages.
