Overview
The TS3702IDT is a micropower dual CMOS voltage comparator produced by STMicroelectronics. This component is designed for extremely low power consumption, making it ideal for applications where energy efficiency is crucial. The TS3702IDT offers a significant reduction in power consumption compared to traditional bipolar comparators like the LM393, with a typical current draw of 9μA per comparator. It features a push-pull CMOS output stage, eliminating the need for an external pull-up resistor and thus saving power and space. The device is available in various packages, including DIP8, SO8, and TSSOP8, to suit different design requirements.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (Single Supply) | 2.7 to 16 | V |
| Supply Voltage (Dual Supplies) | ±1.35V to ±8V | V |
| Input Bias Current | 1 pA (typ) | pA |
| Input Offset Voltage | 5 mV (max) | mV |
| Input Common Mode Voltage Range | 0 to VCC+ - 1.5V | V |
| High Level Output Voltage | 4.5 V (min) @ IOH = -4mA | V |
| Low Level Output Voltage | 0.3 V (max) @ IOL = 4mA | V |
| Response Time (Low to High) | 1.5 μs (typ) @ 5mV overdrive | μs |
| Response Time (High to Low) | 2.2 μs (typ) @ 5mV overdrive | μs |
| Operating Temperature Range | -55°C to +125°C (TS3702M) | °C |
| Package Types | DIP8, SO8, TSSOP8 |
Key Features
- Push-Pull CMOS Output: No external pull-up resistor required, saving power and space.
- Extremely Low Supply Current: 9μA typical per comparator, significantly lower than bipolar comparators like LM393.
- Wide Supply Voltage Range: Single supply from 2.7V to 16V or dual supplies from ±1.35V to ±8V.
- Low Input Bias Current: 1 pA typical, ensuring minimal loading on the input signals.
- High Input Impedance: 10^12 Ω typical, reducing the impact on the input circuitry.
- Fast Response Time: 2μs typical for 5mV overdrive, ensuring quick and accurate comparisons.
- Pin-to-Pin and Functional Compatibility with LM393: Easy replacement or upgrade from bipolar to CMOS comparators.
Applications
- Low Power Systems: Ideal for battery-powered devices, IoT applications, and other energy-constrained systems.
- Automotive Electronics: Suitable for automotive applications due to its wide operating temperature range and robust design.
- Industrial Automation: Used in various industrial control systems where low power consumption and high reliability are essential.
- Medical Devices: Applicable in medical equipment where low power and high accuracy are critical.
- Consumer Electronics: Found in consumer devices such as sensors, alarm systems, and other general-purpose comparator applications.
Q & A
- What is the typical supply current of the TS3702IDT?
The typical supply current of the TS3702IDT is 9μA per comparator.
- What are the available package types for the TS3702IDT?
The TS3702IDT is available in DIP8, SO8, and TSSOP8 packages.
- What is the operating temperature range of the TS3702IDT?
The operating temperature range varies by model but can be as wide as -55°C to +125°C for the TS3702M version.
- Does the TS3702IDT require an external pull-up resistor?
No, the TS3702IDT features a push-pull CMOS output stage, eliminating the need for an external pull-up resistor.
- What is the input bias current of the TS3702IDT?
The input bias current of the TS3702IDT is 1 pA typical.
- How does the TS3702IDT compare to the LM393 in terms of power consumption?
The TS3702IDT consumes significantly less power than the LM393, with a typical current draw 20 times lower.
- What is the response time of the TS3702IDT for a 5mV overdrive?
The response time for a 5mV overdrive is typically 2μs for high to low and 1.5μs for low to high.
- Is the TS3702IDT compatible with the LM393?
Yes, the TS3702IDT is pin-to-pin and functionally compatible with the LM393.
- What are some common applications of the TS3702IDT?
The TS3702IDT is commonly used in low power systems, automotive electronics, industrial automation, medical devices, and consumer electronics.
- What is the input common mode voltage range of the TS3702IDT?
The input common mode voltage range includes GND and extends up to VCC+ - 1.5V.
