Overview
The TLV3492AIDCNR, part of the TLV349x family, is a nanopower, push-pull output comparator designed by Texas Instruments. This device is renowned for its fast response time of 6 µs and extremely low power consumption, with a typical supply current of 0.8 µA. The TLV3492AIDCNR operates on a single supply voltage ranging from 1.8 V to 5.5 V, making it ideal for low-voltage and battery-powered applications. Its micro-sized packages, such as the 8-pin SOT-23, are suitable for space-constrained and portable devices.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VS) | 1.8 | 5.5 | V | |
| Quiescent Current (IQ) | 0.85 | 0.8 | 1.2 | µA |
| Propagation Delay Time (tPLH) | 6 | 12 | µs | |
| Input Common-Mode Range | 200 mV beyond supply rails | |||
| Output Voltage High (VOH) from Rail | 90 | 200 | mV | |
| Output Voltage Low (VOL) from Rail | 160 | 200 | mV | |
| Short-Circuit Current (ISC) | See Typical Characteristics | |||
| Operating Temperature Range | -40 | 125 | °C | |
| Package Type | 8-Pin SOT-23 |
Key Features
- Very Low Supply Current: Typical supply current of 0.8 µA, making it suitable for battery-powered and ultra-low power systems.
- High Speed: Fast response time of 6 µs.
- Push-Pull CMOS Output Stage: Optimal for reduced power budget applications with no shoot-through current.
- Input Common-Mode Range Beyond Supply Rails: Allows operation in low-voltage applications.
- Micro-Sized Packages: Available in 8-pin SOT-23 and SOIC packages, ideal for space-constrained and portable applications.
- Input Overvoltage Protection: Protected by electrostatic discharge (ESD) diodes that can tolerate momentary voltages beyond the power supply.
- External Hysteresis Capability: Allows for the addition of hysteresis to reduce sensitivity to noise.
Applications
- Portable Medical Equipment: Suitable for low-power, battery-operated medical devices.
- Wireless Security Systems: Ideal for low-voltage, power-sensitive security systems.
- Remote Control Systems: Used in remote control devices requiring low power consumption.
- Handheld Instruments: Perfect for handheld devices that need to conserve power.
- Ultra-Low Power Systems: Excellent choice for systems requiring minimal power consumption.
Q & A
- What is the typical supply current of the TLV3492AIDCNR?
The typical supply current is 0.8 µA.
- What is the operating voltage range of the TLV3492AIDCNR?
The device operates on a single supply voltage from 1.8 V to 5.5 V.
- What is the propagation delay time of the TLV3492AIDCNR?
The propagation delay time is typically 6 µs.
- Does the TLV3492AIDCNR have input overvoltage protection?
- How can hysteresis be added to the TLV3492AIDCNR?
Hysteresis can be added by connecting a small amount of feedback to the positive input.
- What are the common applications of the TLV3492AIDCNR?
Common applications include portable medical equipment, wireless security systems, remote control systems, handheld instruments, and ultra-low power systems.
- What package types are available for the TLV3492AIDCNR?
The device is available in 8-pin SOT-23 and SOIC packages.
- What is the operating temperature range of the TLV3492AIDCNR?
The operating temperature range is from -40°C to 125°C.
- How should the TLV3492AIDCNR be laid out on a PCB to minimize noise?
Use a good, unbroken low-inductance ground plane, place decoupling capacitors close to VCC, and keep lead lengths short to avoid parasitic feedback.
- Can the TLV3492AIDCNR be used in AC-coupled comparator circuits?
