Overview
The LM393ADT is a dual low-voltage comparator integrated circuit manufactured by STMicroelectronics. It is designed to operate from a single supply over a wide range of voltages, as well as from split power supplies. This device is notable for its ability to operate with input common-mode voltage ranges that include ground, even when powered by a single supply voltage.
The LM393ADT is part of the LM393 series, which is known for its low power consumption and compatibility with various logic families such as TTL, DTL, ECL, MOS, and CMOS.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package Style | SOIC-8 | |
| Mounting Method | Surface Mount | |
| Supply Voltage Range | +2 V to +36 V or ±1 V to ±18 V | V |
| Supply Current | 0.45 mA | mA |
| Input Bias Current | 20 nA (typ) | nA |
| Input Offset Current | ±3 nA (typ) | nA |
| Input Offset Voltage | ±1 mV (typ) | mV |
| Output Saturation Voltage | 80 mV (typ, Isink = 4 mA) | mV |
| Differential Input Voltage Range | Equal to the supply voltage | V |
| Operating Temperature Range | -40°C to 85°C | °C |
| ESD Rating (HBM) | 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 (0.45 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. (Isink = 4 mA)
- Differential input voltage range equal to the supply voltage
- TTL, DTL, ECL, MOS, CMOS compatible outputs
- Available in various packages including SOIC-8, DFN8 2x2, MiniSO8, and TSSOP8
- LM393W version with internal ESD protection: 2 kV HBM
Applications
The LM393ADT is versatile and can be used in a variety of applications, including:
- Industrial control systems
- Automotive systems
- Medical devices
- Consumer electronics
- Analog-to-digital converters
- Threshold detectors
- Pulse generators
- Square-wave generators
Q & A
- What is the supply voltage range for the LM393ADT?
The LM393ADT 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 LM393ADT?
The typical supply current is 0.45 mA, independent of the supply voltage.
- What is the input bias current of the LM393ADT?
The input bias current is typically 20 nA.
- What is the input offset voltage of the LM393ADT?
The input offset voltage is typically ±1 mV.
- Does the LM393ADT support TTL, DTL, ECL, MOS, and CMOS logic families?
- What is the operating temperature range of the LM393ADT?
The operating temperature range is -40°C to 85°C.
- What is the ESD rating of the LM393ADT?
The ESD rating is 2 kV HBM.
- In what packages is the LM393ADT available?
The LM393ADT is available in SOIC-8, DFN8 2x2, MiniSO8, and TSSOP8 packages.
- Does the LM393ADT have internal ESD protection?
The LM393W version of the LM393 series has internal ESD protection of 2 kV HBM, but this specific feature may not be included in the LM393ADT.
- What are some common applications of the LM393ADT?
Common applications include industrial control systems, automotive systems, medical devices, consumer electronics, and various analog circuits.
