Overview
The LM2903WYDT is a low-power, dual-voltage comparator produced by STMicroelectronics. This device consists of two independent voltage comparators designed to operate over a wide range of supply voltages, from +2 V to +36 V or ±1 V to ±18 V. It is particularly notable for its low supply current, which is independent of the supply voltage, making it highly efficient for various applications.
The LM2903WYDT is part of the LM2903 series, known for its robust performance and versatility. It is suitable for use in automotive and industrial environments due to its wide operating temperature range and high ESD protection.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage | 2 V to 36 V or ±1 V to ±18 V | V |
| Supply Current | 0.4 mA (typ.) | mA |
| Input Offset Voltage | 1 to 15 mV | mV |
| Input Bias Current | 25 nA (typ.) | nA |
| Input Offset Current | ±5 nA (typ.) | nA |
| Output Saturation Voltage | 250 mV (typ. at IO = 4 mA) | mV |
| Operating Temperature Range | -40°C to +125°C | °C |
| Package Type | SO-8 | |
| ESD Protection | 2 kV | V |
Key Features
- Wide single supply voltage range or dual supplies (+2 V to +36 V or ±1 V to ±18 V)
- Very low supply current (0.4 mA) independent of supply voltage
- Low input bias current: 25 nA (typ.)
- Low input offset current: ±5 nA (typ.)
- Input common-mode voltage range includes negative rail
- Low output saturation voltage: 250 mV (typ. at IO = 4 mA)
- Differential input voltage range equal to the supply voltage
- TTL, DTL, ECL, MOS, CMOS compatible outputs
- Automotive qualification and high ESD protection (2 kV)
Applications
- Automotive systems: Due to its automotive grade and wide operating temperature range, it is suitable for various automotive applications.
- Industrial control systems: Its robust performance and wide supply voltage range make it ideal for industrial control and monitoring systems.
- Power supply monitoring: Can be used to monitor and compare voltages in power supply systems.
- Transducer amplifiers: Suitable for use in transducer amplifier circuits due to its low input bias current and high input impedance.
- Time delay generators and VCOs: Can be used in circuits requiring precise timing and voltage control, such as time delay generators and voltage-controlled oscillators.
Q & A
- What is the supply voltage range of the LM2903WYDT?
The LM2903WYDT can operate from a single supply voltage of +2 V to +36 V or from dual supplies of ±1 V to ±18 V.
- What is the typical supply current of the LM2903WYDT?
The typical supply current is 0.4 mA, independent of the supply voltage.
- What is the input offset voltage of the LM2903WYDT?
The input offset voltage ranges from 1 to 15 mV.
- What is the operating temperature range of the LM2903WYDT?
The operating temperature range is -40°C to +125°C.
- What type of package does the LM2903WYDT come in?
The LM2903WYDT comes in an SO-8 package.
- Is the LM2903WYDT RoHS compliant?
- What is the ESD protection level of the LM2903WYDT?
The LM2903WYDT has an ESD protection level of 2 kV.
- Can the LM2903WYDT be used in automotive applications?
- What are some common applications of the LM2903WYDT?
- Is the LM2903WYDT compatible with various logic families?
