Overview
The TLC374CDR is a quadruple differential comparator fabricated using Texas Instruments' LinCMOS technology. This device is designed to operate from a single power supply, but it can also function with dual supplies if the difference between the two supplies is within the range of 2 V to 18 V. The TLC374CDR features four independent voltage comparators, each with extremely high input impedance, allowing direct interfacing with high-impedance sources. The outputs are n-channel open-drain configurations, enabling positive-logic wired-AND relationships. The device includes internal electrostatic discharge (ESD) protection circuits and is classified with a 1000-V ESD rating using the human body model testing.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VDD) | 2 to 18 | V |
| Supply Current (IDD) at 5 V | 0.3 mA (Typ) | mA |
| Input Offset Voltage (VIO) | 5 mV (Max) | mV |
| Input Bias Current (IIB) | 5 pA (Typ) | pA |
| Common-Mode Input Voltage Range (VIC) | 0 to VDD-1 | V |
| Response Time for TTL-Level Input Step | 200 ns (Typ) | ns |
| Operating Temperature Range | 0°C to 70°C (TLC374C) | °C |
| -40°C to 85°C (TLC374I) | °C | |
| -55°C to 125°C (TLC374M) | °C | |
| -40°C to 125°C (TLC374Q) | °C | |
| Package Type | SOIC-14 | |
| ESD Rating | 1000 V (Human Body Model) | V |
Key Features
- Single- or dual-supply operation with a wide range of supply voltages (2 V to 18 V)
- Very low supply current drain (0.3 mA Typ at 5 V)
- Fast response time (200 ns Typ for TTL-level input step)
- Built-in ESD protection circuits with a 1000-V ESD rating
- High input impedance (typically greater than 10^12 Ω)
- Extremely low input bias current (5 pA Typ)
- Ultrastable low input offset voltage
- Common-mode input voltage range includes ground
- Outputs compatible with TTL, MOS, and CMOS
- Pin-compatible with LM339
Applications
The TLC374CDR is versatile and can be used in a variety of applications, including:
- Analog-to-digital converters
- Threshold detectors
- Window comparators
- High-impedance buffer amplifiers
- Industrial control systems
- Medical devices requiring high precision and low power consumption
- Aerospace and military applications due to its full military temperature range options
Q & A
- What is the operating temperature range for the TLC374CDR?
The operating temperature range varies by model: 0°C to 70°C for TLC374C, -40°C to 85°C for TLC374I, -55°C to 125°C for TLC374M, and -40°C to 125°C for TLC374Q.
- What is the typical supply current for the TLC374CDR at 5 V?
The typical supply current is 0.3 mA at 5 V.
- What is the response time for a TTL-level input step?
The response time is typically 200 ns for a TTL-level input step.
- Does the TLC374CDR have built-in ESD protection?
- What is the input impedance of the TLC374CDR?
The input impedance is typically greater than 10^12 Ω.
- Is the TLC374CDR compatible with other logic families?
- What is the common-mode input voltage range for the TLC374CDR?
The common-mode input voltage range includes ground and extends up to VDD-1.
- Can the TLC374CDR be used in high-impedance source applications?
- What is the typical input bias current of the TLC374CDR?
The typical input bias current is 5 pA).
- Is the TLC374CDR pin-compatible with other comparators?
