Overview
The LM393AQT, produced by STMicroelectronics, is a low power dual voltage comparator. This device consists of two independent low voltage comparators designed to operate from a single supply over a wide range of voltages, as well as from split power supplies. The LM393 series is known for its low input offset voltage, low input bias current, and low supply current, making it an excellent choice for various applications in consumer, automotive, and industrial electronics.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | 2.0 | - | 36.0 | V |
| Split-Supply Range | ±1.0 | - | ±18.0 | V |
| Supply Current | - | 0.45 | - | mA |
| Input Bias Current | - | 20 | - | nA |
| Input Offset Current | - | ±3.0 | - | nA |
| Input Offset Voltage | - | ±1.0 | - | mV |
| Input Common Mode Voltage Range | -0.3 | - | 36.0 | V |
| Output Saturation Voltage | - | 80 | - | mV |
| Operating Temperature Range | 0.0 | - | 70.0 | °C |
| Package | - | - | QFN-8L P 0.5 mm | - |
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 (1 mW/comparator at 5 V)
- Low input bias current: 20 nA typ.
- Low input offset current: ±3 nA typ.
- Low input offset voltage: ±1 mV typ.
- Input common-mode voltage range includes ground
- Low output saturation voltage: 80 mV typ. (I sink= 4 mA)
- Differential input voltage range equal to the supply voltage
- Output voltage compatible with TTL, DTL, ECL, MOS, and CMOS logic levels
- Available in various packages including DFN8 2x2, MiniSO8, TSSOP8, and SO8
- LM393W with internal ESD protection: 2 kV HBM
Applications
- Consumer electronics
- Automotive electronics
- Industrial electronics
- Vacuum robots
- Single phase UPS systems
- Server power supplies
- Cordless power tools
- Wireless infrastructure
- Building automation
- Factory automation and control
- Motor drives
- Infotainment and cluster systems
Q & A
- What is the supply voltage range for the LM393AQT?
The LM393AQT can operate from a single supply voltage range of 2 V to 36 V or from split power supplies ranging from ±1 V to ±18 V.
- What is the typical supply current for the LM393AQT?
The typical supply current is 0.45 mA, independent of the supply voltage.
- What are the input bias and offset currents for the LM393AQT?
The input bias current is typically 20 nA, and the input offset current is typically ±3 nA.
- What is the input offset voltage for the LM393AQT?
The input offset voltage is typically ±1 mV.
- What is the operating temperature range for the LM393AQT?
The operating temperature range is from 0°C to 70°C.
- What are the compatible logic levels for the output voltage of the LM393AQT?
The output voltage is compatible with TTL, DTL, ECL, MOS, and CMOS logic levels.
- Does the LM393AQT have ESD protection?
The LM393W version has internal ESD protection of 2 kV HBM, but this specific feature may not be included in all versions like the LM393AQT.
- What packages are available for the LM393AQT?
The LM393AQT is available in a QFN-8L P 0.5 mm package, among other package options for the LM393 series.
- Is the LM393AQT RoHS compliant?
Yes, the LM393AQT is RoHS compliant and has an Ecopack3 grade.
- What are some common applications for the LM393AQT?
Common applications include consumer electronics, automotive electronics, industrial electronics, and various control systems.
