Overview
The LM393APS, produced by Texas Instruments, is a precision dual differential comparator. This device is part of the LM393 series, known for its wide range of supply voltage and versatility in various applications. The LM393APS operates from a single power supply over a wide range of voltages (2 V to 36 V) and can also function with dual supplies. It features low input offset voltage, low input bias current, and compatibility with TTL, MOS, and CMOS logic levels. This makes it an excellent choice for consumer, automotive, and industrial electronics.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage Range | 2 V to 36 V | V |
| Input Offset Voltage | 2 mV (Typical), 5 mV (Max) | mV |
| Input Offset Current | 3 nA (Typical), 5 nA (Max) | nA |
| Input Bias Current | 25 nA (Typical), 250 nA (Max) | nA |
| Common-Mode Input Voltage Range | Ground to VCC - 2 V | V |
| Differential Input Voltage Range | Equal to maximum-rated supply voltage: ±36 V | V |
| Output Compatibility | TTL, MOS, CMOS | - |
| Quiescent Current | 0.4 mA (Typical) | mA |
| Operating Temperature Range | 0°C to 70°C | °C |
| ESD Rating (HBM) | 2 kV | V |
| Response Time | 1 µsec (Typical) | µsec |
Key Features
- Wide single-supply range: 2 V to 36 V and split-supply range: ±1 V to ±18 V
- Low input offset voltage and current
- Low quiescent current independent of supply voltage
- Common-mode input voltage range includes ground
- Differential input voltage range equal to maximum-rated supply voltage
- Output compatible with TTL, MOS, and CMOS logic levels
- ESD clamps on the inputs for increased ruggedness
- Pb-free, halogen-free/BFR-free, and RoHS compliant
- Open-drain output allowing configuration of output logic levels
Applications
- Chemical or gas sensors
- Desktop PCs
- Motor control: AC induction
- Weigh scales
- Consumer electronics
- Automotive electronics
- Industrial electronics
Q & A
- What is the supply voltage range of the LM393APS?
The LM393APS operates from a single power supply over a wide range of voltages, from 2 V to 36 V. - What is the typical input offset voltage of the LM393APS?
The typical input offset voltage is 2 mV. - Is the LM393APS compatible with TTL, MOS, and CMOS logic levels?
Yes, the output of the LM393APS is compatible with TTL, MOS, and CMOS logic levels. - What is the operating temperature range of the LM393APS?
The operating temperature range is from 0°C to 70°C. - Does the LM393APS have ESD protection?
Yes, the LM393APS has ESD clamps on the inputs, providing 2 kV ESD protection. - What are some common applications of the LM393APS?
Common applications include chemical or gas sensors, desktop PCs, motor control, weigh scales, and various consumer, automotive, and industrial electronics. - Is the LM393APS Pb-free and RoHS compliant?
Yes, the LM393APS is Pb-free, halogen-free/BFR-free, and RoHS compliant. - How does the open-drain output of the LM393APS work?
The open-drain output allows the user to configure the output's logic low voltage and can be used to enable the comparator to be used in AND functionality. - What is the typical quiescent current of the LM393APS?
The typical quiescent current is 0.4 mA. - Can the LM393APS operate with dual supplies?
Yes, the LM393APS can operate with dual supplies as long as the difference between the two supplies is within the specified range.
