Overview
The TLC372MDG4 is a Dual General Purpose LinCMOS™ Differential Comparator produced by Texas Instruments. This device is fabricated using LinCMOS technology and consists of two independent voltage comparators. Each comparator is designed to operate with a wide range of supply voltages from 2 V to 18 V, making it versatile for various applications. The TLC372MDG4 features extremely high input impedance, typically greater than 10^12 Ω, which allows direct interfacing with high-impedance sources. The outputs are configured as n-channel open-drain, enabling positive-logic wired-AND relationships when connected appropriately.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage Range | 2 | - | 18 | V |
| Input Offset Voltage | 1 | 5 | - | mV |
| Input Offset Current | - | - | 1 | pA |
| Input Bias Current | - | - | 5 | pA |
| Response Time (100-mV input step) | - | - | 650 | ns |
| Response Time (TTL-level input step) | - | - | 200 | ns |
| Operating Temperature Range (TLC372C) | 0 | - | 70 | °C |
| Operating Temperature Range (TLC372I) | -40 | - | 85 | °C |
| Operating Temperature Range (TLC372M) | -55 | - | 125 | °C |
| Operating Temperature Range (TLC372Q) | -40 | - | 125 | °C |
| ESD Rating (Human Body Model) | - | - | 1000 | V |
Key Features
- High input impedance (typically greater than 10^12 Ω) for direct interfacing with high-impedance sources.
- n-channel open-drain output configuration allowing for positive-logic wired-AND relationships.
- Internal electrostatic discharge (ESD) protection circuits with a 1000-V ESD rating using human body model testing.
- Wide supply voltage range from 2 V to 18 V.
- Low power consumption with supply current typically around 150-300 µA per comparator.
- High accuracy with low input offset voltage and current.
Applications
The TLC372MDG4 is suitable for a variety of applications due to its versatility and high performance characteristics. Some common applications include:
- Analog-to-digital converters and digital-to-analog converters.
- Threshold detectors and window comparators.
- Level translators and voltage monitors.
- Industrial control systems and medical devices.
- Aerospace and military applications due to its wide temperature range and high reliability.
Q & A
- What is the supply voltage range of the TLC372MDG4?
The supply voltage range of the TLC372MDG4 is from 2 V to 18 V. - What is the typical input impedance of the TLC372MDG4?
The typical input impedance is greater than 10^12 Ω. - What is the output configuration of the TLC372MDG4?
The outputs are configured as n-channel open-drain. - What is the ESD rating of the TLC372MDG4?
The ESD rating is 1000 V using the human body model. - What are the operating temperature ranges for different versions of the TLC372?
The operating temperature ranges are 0°C to 70°C for TLC372C, -40°C to 85°C for TLC372I, -55°C to 125°C for TLC372M, and -40°C to 125°C for TLC372Q. - What is the typical response time for a 100-mV input step?
The typical response time for a 100-mV input step is 650 ns. - What is the typical response time for a TTL-level input step?
The typical response time for a TTL-level input step is 200 ns. - What are some common applications of the TLC372MDG4?
Common applications include analog-to-digital converters, threshold detectors, level translators, industrial control systems, and medical devices. - Is the TLC372MDG4 suitable for military and aerospace applications?
Yes, it is suitable due to its wide temperature range and high reliability. - What is the typical supply current for the TLC372MDG4?
The typical supply current is around 150-300 µA per comparator.
