Overview
The TLC372MD, produced by Texas Instruments, is a Dual General Purpose LinCMOS™ Differential Comparator. This device is fabricated using LinCMOS technology and consists of two independent voltage comparators. Each comparator is designed to operate over a wide range of supply voltages from 2 V to 18 V, making it versatile for various applications. The TLC372MD features extremely high input impedance, typically greater than 10^12 Ω, allowing direct interfacing with high-impedance sources. The outputs are configured as n-channel open-drain, enabling positive-logic wired-AND relationships. The device also includes internal electrostatic discharge (ESD) protection circuits with a 1000-V ESD rating using the human body model testing.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Voltage - Supply, Single/Dual (±) | 4 V ~ 16 V, ±2 V ~ 8 V | |||
| Voltage - Input Offset (Max) | 5 mV @ 5 V | |||
| Current - Input Bias (Max) | 5 pA @ 5 V | |||
| Current - Output (Typ) | 20 mA | |||
| Current - Quiescent (Max) | 400 µA | |||
| Operating Temperature | -55°C | 125°C | ||
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | |||
| Mounting Type | Surface Mount |
Key Features
- High input impedance (typically greater than 10^12 Ω) for direct interfacing with high-impedance sources.
- n-channel open-drain outputs allowing for positive-logic wired-AND relationships.
- Internal electrostatic discharge (ESD) protection circuits with a 1000-V ESD rating.
- Wide supply voltage range from 2 V to 18 V.
- Low supply current (typically 150 µA to 300 µA per comparator).
- Operating temperature ranges: -55°C to 125°C for military-grade versions.
Applications
The TLC372MD is suitable for a variety of applications requiring high-precision voltage comparison. These include:
- Industrial control systems where precise voltage monitoring is necessary.
- Automotive systems for sensor signal processing and voltage monitoring.
- Medical devices requiring accurate voltage comparisons.
- Consumer electronics for battery monitoring and voltage regulation.
- Military and aerospace applications due to its wide operating temperature range.
Q & A
- What is the supply voltage range of the TLC372MD?
The supply voltage range is from 2 V to 18 V, or ±2 V to ±8 V for dual supplies.
- What is the typical input impedance of the TLC372MD?
The typical input impedance is greater than 10^12 Ω.
- What type of output configuration does the TLC372MD have?
The outputs are n-channel open-drain configurations.
- What is the ESD rating of the TLC372MD?
The device has a 1000-V ESD rating using the human body model testing.
- What are the operating temperature ranges for the TLC372MD?
The operating temperature ranges vary by version: -55°C to 125°C for military-grade versions, -40°C to 85°C for industrial versions, and 0°C to 70°C for commercial versions.
- What is the typical quiescent current of the TLC372MD?
The typical quiescent current is 150 µA to 300 µA per comparator.
- What package type is the TLC372MD available in?
The TLC372MD is available in an 8-SOIC package.
- Is the TLC372MD suitable for high-impedance sources?
Yes, due to its high input impedance, it is suitable for direct interfacing with high-impedance sources.
- Can the TLC372MD be used in military applications?
Yes, the TLC372MD has versions that operate over the full military temperature range of -55°C to 125°C.
- What is the maximum input offset voltage of the TLC372MD?
The maximum input offset voltage is 5 mV at 5 V.
