Overview
The LM393ADG4, produced by Texas Instruments, is a dual differential comparator integrated circuit. It is part of the next-generation B-version comparators, which offer improved specifications over their predecessors. This device is designed to operate from a single power supply over a wide range of voltages, making it versatile for various applications. The LM393ADG4 features two independent voltage comparators, each capable of operating with low input offset voltage, low input bias current, and low supply current. It is a drop-in replacement for earlier versions such as the LM293, LM393, and LM2903, making it an ideal choice for upgrading existing designs.
Key Specifications
| Parameter | Test Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Input Offset Voltage (VIO) | VS = 5 to 36V, TA = 25°C | -2.5 | ±0.37 | 2.5 | mV |
| Input Bias Current (IB) | TA = 25°C | -3.5 | -25 | -50 | nA |
| Common Mode Range (VCM) | VS = 3 to 36V, TA = 25°C | (V-) to (V+) - 1.5 | (V+) - 2 | V | |
| Supply Voltage (VS) | 2 | 36 | V | ||
| Quiescent Current (IQ) | VS = 5V, no load, TA = 25°C | 400 | 600 | 800 | µA |
| Response Time | RL connected to 5V through 5.1kΩ, CL = 15pF | 1.3 | µs | ||
| ESD Rating (HBM) | 2000 | V |
Key Features
- Improved specifications of B-version, including lower offset voltage and higher supply voltage capability.
- Low input offset voltage: ±0.37mV.
- Low input bias current: 3.5nA.
- Low supply current: 200µA per comparator.
- Faster response time: 1µsec.
- Extended temperature range: -40°C to 85°C for LM393B.
- Available in various packages, including SOIC, VSSOP, and WSON.
- Output compatible with TTL, MOS, and CMOS.
- Common-mode input voltage range includes ground.
- Differential input voltage range equal to maximum-rated supply voltage: ±38 V.
Applications
- Vacuum robots.
- Single-phase UPS systems.
- Server power supplies.
- Cordless power tools.
- Wireless infrastructure.
- Appliances.
- Building automation.
- Factory automation and control.
- Motor drives.
- Infotainment and cluster systems.
Q & A
- What is the maximum supply voltage for the LM393ADG4?
The maximum supply voltage for the LM393ADG4 is 36V.
- What is the typical response time of the LM393ADG4?
The typical response time is 1.3µsec.
- What is the input offset voltage range for the LM393ADG4?
The input offset voltage range is ±0.37mV.
- What are the compatible output types for the LM393ADG4?
The output is compatible with TTL, MOS, and CMOS.
- What is the common-mode input voltage range for the LM393ADG4?
The common-mode input voltage range includes ground and extends up to VCC - 1.5V.
- Can the LM393ADG4 replace earlier versions of comparators?
Yes, it can drop-in replace earlier versions such as the LM293, LM393, and LM2903.
- What is the ESD rating for the LM393ADG4?
The ESD rating is 2000V (HBM).
- What are the typical operating temperature ranges for the LM393ADG4?
The operating temperature range is -40°C to 85°C for the LM393B.
- What packages are available for the LM393ADG4?
It is available in SOIC, VSSOP, and WSON packages.
- What are some common applications of the LM393ADG4?
Common applications include vacuum robots, single-phase UPS systems, server power supplies, and more.
