Overview
The LM393WDT, produced by STMicroelectronics, is a low-power dual voltage comparator designed to operate from a single supply over a wide range of voltages. It is part of the LM393 family, which includes two independent low voltage comparators. This device is notable for its ability to operate from a single power supply voltage or dual supplies, and its input common-mode voltage range includes ground, even when operated from a single power supply voltage.
The LM393WDT offers enhanced ESD robustness with 2 kV HBM (Human Body Model) protection on all pins, making it suitable for applications requiring high reliability and robustness against electrostatic discharge.
Key Specifications
| Parameter | Symbol | Typical Value | Unit | Conditions |
|---|---|---|---|---|
| Supply Voltage Range | Vcc | 2 V to 36 V or ±1 V to ±18 V | V | |
| Supply Current | Icc | 0.45 mA | mA | Independent of supply voltage |
| Input Bias Current | Ib | 20 nA | nA | Typical |
| Input Offset Current | Iio | ±3 nA | nA | Typical |
| Input Offset Voltage | Vio | ±1 mV | mV | Typical |
| Input Common-mode Voltage Range | Vicm | Includes ground | V | |
| Output Saturation Voltage | Vosat | 80 mV | mV | I sink = 4 mA |
| Differential Input Voltage Range | Vid | Equal to the supply voltage | V | |
| Output Compatibility | TTL, DTL, ECL, MOS, CMOS | |||
| Operating Temperature Range | Topr | 0°C to +70°C (Commercial), -40°C to +125°C (Industrial) | °C | |
| Package Options | DFN8 2x2, MiniSO8, TSSOP8, SO8 |
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 (0.45 mA) independent of supply voltage
- Low input bias current: 20 nA typical
- Low input offset current: ±3 nA typical
- Low input offset voltage: ±1 mV typical
- Input common-mode voltage range includes ground
- Low output saturation voltage: 80 mV typical (I sink = 4 mA)
- Differential input voltage range equal to the supply voltage
- TTL, DTL, ECL, MOS, CMOS compatible outputs
- Available in various packages: DFN8 2x2, MiniSO8, TSSOP8, SO8
- LM393WDT with internal ESD protection: 2 kV HBM
Applications
The LM393WDT is versatile and can be used in a variety of applications, including:
- Industrial control systems
- Analog-to-digital converters
- Threshold detectors
- Pulse generators
- Schmitt triggers
- Level translators
- Automotive systems requiring robust ESD protection
Q & A
- What is the supply voltage range for the LM393WDT?
The LM393WDT can operate from a single supply voltage range of 2 V to 36 V or dual supplies from ±1 V to ±18 V.
- What is the typical supply current for the LM393WDT?
The typical supply current is 0.45 mA, independent of the supply voltage.
- What is the input bias current of the LM393WDT?
The input bias current is typically 20 nA.
- What is the input offset voltage of the LM393WDT?
The input offset voltage is typically ±1 mV.
- Does the LM393WDT have ESD protection?
Yes, the LM393WDT has internal ESD protection of 2 kV HBM on all pins.
- What are the output compatibility options for the LM393WDT?
The outputs are compatible with TTL, DTL, ECL, MOS, and CMOS.
- What are the available package options for the LM393WDT?
The LM393WDT is available in DFN8 2x2, MiniSO8, TSSOP8, and SO8 packages.
- What is the operating temperature range for the LM393WDT?
The operating temperature range is 0°C to +70°C for commercial grade and -40°C to +125°C for industrial grade.
- Can the LM393WDT operate with a single power supply?
Yes, the LM393WDT can operate from a single power supply voltage, and the input common-mode voltage range includes ground.
- What is the typical output saturation voltage for the LM393WDT?
The typical output saturation voltage is 80 mV when the sink current is 4 mA.
