Overview
The TS3702IPT is a micropower CMOS dual voltage comparator produced by STMicroelectronics. It is characterized by its extremely low power consumption of 9µA per comparator, which is 20 times less than the bipolar LM393. This component features a push-pull CMOS output stage, eliminating the need for an external pull-up resistor, thus saving power and space. The TS3702IPT is pin-to-pin and functionally compatible with the bipolar LM393, making it a versatile option for various applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage | 2.7 to 16 V (single supply) or ±1.35V to ±8V (dual supplies) | V |
| Supply Current (each comparator) | 9 µA (typ) | µA |
| Input Bias Current | 1 pA (typ) | pA |
| Input Offset Current | 1 pA (typ) | pA |
| Input Common-Mode Voltage Range | 0 to VCC+ - 1.5 V | V |
| High Level Output Voltage | 2.4 V (typ) at IOH = -4mA | V |
| Low Level Output Voltage | 0.4 V (typ) at IOL = 4mA | V |
| Response Time (low to high) | 1.5 µs (typ) for 5mV overdrive | µs |
| Response Time (high to low) | 2.2 µs (typ) for 5mV overdrive | µs |
| Operating Temperature Range | -40°C to +125°C (TS3702IPT) | °C |
| Package Type | TSSOP-8 |
Key Features
- Push-pull CMOS output (no external pull-up resistor required)
- Extremely low supply current: 9µA typ / comparator
- Wide single supply range: 2.7V to 16V or dual supplies (±1.35V to ±8V)
- Extremely low input bias current: 1pA typ
- Extremely low input offset currents: 1pA typ
- Input common-mode voltage range includes GND
- High input impedance: 10^12Ω typ
- Fast response time: 2µs typ for 5mV overdrive
- Pin-to-pin and functionally compatible with bipolar LM393
Applications
The TS3702IPT is suitable for a variety of applications where low power consumption and high accuracy are required. These include:
- Battery-powered devices
- Portable electronics
- Automotive systems (non-critical applications)
- Industrial control systems
- Medical devices requiring low power consumption
- Sensor circuits and signal conditioning
Q & A
- What is the typical supply current of the TS3702IPT per comparator?
The typical supply current is 9µA per comparator.
- What is the input bias current of the TS3702IPT?
The input bias current is 1pA typical.
- What is the operating temperature range of the TS3702IPT?
The operating temperature range is -40°C to +125°C.
- Is the TS3702IPT compatible with the LM393?
Yes, it is pin-to-pin and functionally compatible with the bipolar LM393.
- What is the response time of the TS3702IPT for a 5mV overdrive?
The response time is typically 1.5µs for low to high and 2.2µs for high to low.
- What are the package options available for the TS3702IPT?
The TS3702IPT is available in a TSSOP-8 package.
- What is the input common-mode voltage range of the TS3702IPT?
The input common-mode voltage range includes GND and up to VCC+ - 1.5V.
- Does the TS3702IPT require an external pull-up resistor?
No, it features a push-pull CMOS output stage that eliminates the need for an external pull-up resistor.
- What is the high level output voltage of the TS3702IPT?
The high level output voltage is typically 2.4V at IOH = -4mA.
- What are some typical applications of the TS3702IPT?
Typical applications include battery-powered devices, portable electronics, automotive systems, industrial control systems, and medical devices.
