Overview
The TLC372MDR, 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 from a single power supply or from dual supplies with a difference between the two supplies ranging from 4 V to 18 V. The TLC372MDR is known for its high input impedance, making it suitable for direct interfacing with high-impedance sources.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Voltage - Supply, Single/Dual (±) | 4 V ~ 16 V, ±2 V ~ 8 V | V | ||
| Voltage - Input Offset (Max) | 5 mV @ 5V | mV | ||
| Current - Input Bias (Max) | 5 pA @ 5V | pA | ||
| Current - Output (Typ) | 20 mA | mA | ||
| Current - Quiescent (Max) | 400 µA | µA | ||
| Operating Temperature | −55°C | 125°C | °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) allowing direct interfacing with high-impedance sources.
- Output compatible with TTL, MOS, and CMOS.
- Internal electrostatic discharge (ESD) protection circuits with a 2000-V ESD rating using human-body-model (HBM) testing.
- Single or dual-supply operation with a wide range of supply voltages (4 V to 18 V).
- Pin-compatible with LM393.
- Extended temperature performance from −55°C to 125°C.
- n-channel open-drain output configurations that can be connected to achieve positive-logic wired-AND relationships.
Applications
The TLC372MDR is versatile and can be used in a variety of applications, including:
- General-purpose voltage comparison in industrial and consumer electronics.
- Threshold detection and level shifting in digital systems.
- High-impedance sensor interfaces due to its high input impedance.
- Automotive and aerospace applications due to its extended temperature range.
- Medical devices requiring precise voltage comparison.
Q & A
- What is the operating temperature range of the TLC372MDR?
The TLC372MDR operates from −55°C to 125°C.
- What is the input impedance of the TLC372MDR?
The input impedance is typically greater than 10^12 Ω.
- Can the TLC372MDR operate from a single power supply?
- What is the ESD protection rating of the TLC372MDR?
The TLC372MDR has an ESD protection rating of 2000 V using human-body-model (HBM) testing.
- What is the output configuration of the TLC372MDR?
The outputs are n-channel open-drain configurations.
- Is the TLC372MDR pin-compatible with other comparators?
- What is the typical quiescent current of the TLC372MDR?
The typical quiescent current is 400 µA.
- What is the maximum input offset voltage of the TLC372MDR?
The maximum input offset voltage is 5 mV at 5 V.
- What is the package type of the TLC372MDR?
The package type is 8-SOIC (0.154", 3.90mm Width).
- What are some common applications of the TLC372MDR?
Common applications include general-purpose voltage comparison, threshold detection, high-impedance sensor interfaces, and use in automotive and aerospace systems.
