Overview
The TLV7022DDFR is a dual-channel, micro-power comparator from Texas Instruments. It is part of the TLV702x family, known for its low-voltage operation and rail-to-rail input capability. This component is designed for space-critical and power-conscious applications, making it ideal for use in mobile phones, tablets, portable and battery-powered devices, and other compact electronic systems.
The TLV7022DDFR features an ultra-small package, specifically the VSSOP (8-pin) package, which measures 3 mm x 3 mm. This compact design, along with its low quiescent supply current of 5 µA per channel, makes it highly suitable for applications where both space and power efficiency are critical.
Key Specifications
| Parameter | Typical Value | Unit |
|---|---|---|
| Input Offset Voltage (VIO) | ±0.5 to ±8 | mV |
| Hysteresis (VHYS) | 2 to 15 | mV |
| Common-Mode Voltage Range (VCM) | VEE to VCC + 0.1 V | V |
| Input Bias Current (IB) | 2 | pA |
| Output Voltage High (VOH) | 4.65 to 4.8 | V |
| Output Voltage Low (VOL) | 250 to 350 | mV |
| Open-Drain Output Leakage Current (ILKG) | 100 | pA |
| Common-Mode Rejection Ratio (CMRR) | 73 | dB |
| Power Supply Rejection Ratio (PSRR) | 77 | dB |
| Propagation Delay Time (tPHL/tPLH) | 260 to 310 | ns |
| Rise Time (tR) | 5 | ns |
| Fall Time (tF) | 5 | ns |
| Supply Current (ICC) | 4.7 to 9 | µA |
| Operating Temperature Range | -40°C to 125°C | °C |
| Supply Voltage Range | 1.6 V to 6.5 V | V |
Key Features
- Low Propagation Delay: 260 ns to 310 ns, ensuring fast response times.
- Rail-to-Rail Input Capability: Allows the input voltage to range from VEE to VCC + 0.1 V.
- Internal Hysteresis: Reduces noise sensitivity and oscillations.
- Open-Drain Output: Suitable for level translators and bipolar to single-ended converters.
- No Phase Reversal: Ensures correct output even with overdriven inputs.
- Low Quiescent Supply Current: 5 µA per channel, ideal for battery-powered devices.
- Compact Packaging: Available in VSSOP (8-pin) and other small packages.
- Wide Operating Temperature Range: From -40°C to 125°C.
- High Common-Mode Rejection Ratio and Power Supply Rejection Ratio: 73 dB and 77 dB respectively, ensuring robust performance in noisy environments.
Applications
- Mobile Phones and Tablets: Ideal for space-critical and power-efficient designs.
- Portable and Battery-Powered Devices: Suitable due to its low power consumption.
- IR Receivers: Can be used for detecting infrared signals.
- Level Translators: The open-drain output makes it suitable for level translation applications.
- Threshold Detectors and Discriminators: Useful in applications requiring precise voltage monitoring.
- Window Comparators: Can be used to detect when an input signal falls within a specified range.
- Zero-Crossing Detectors: Suitable for detecting zero-crossing points in AC signals.
Q & A
- What is the typical propagation delay of the TLV7022DDFR?
The typical propagation delay is 260 ns to 310 ns.
- What is the operating voltage range of the TLV7022DDFR?
The operating voltage range is from 1.6 V to 6.5 V.
- What is the quiescent supply current of the TLV7022DDFR?
The quiescent supply current is 5 µA per channel.
- Does the TLV7022DDFR have internal hysteresis?
Yes, it features internal hysteresis to reduce noise sensitivity and oscillations.
- What types of output stages are available for the TLV7022DDFR?
The TLV7022DDFR has open-drain output stages.
- What is the common-mode rejection ratio (CMRR) of the TLV7022DDFR?
The CMRR is 73 dB.
- What is the power supply rejection ratio (PSRR) of the TLV7022DDFR?
The PSRR is 77 dB.
- What are the typical rise and fall times of the TLV7022DDFR?
The typical rise and fall times are both 5 ns.
- What is the operating temperature range of the TLV7022DDFR?
The operating temperature range is from -40°C to 125°C.
- In what types of applications is the TLV7022DDFR commonly used?
It is commonly used in mobile phones, tablets, portable and battery-powered devices, IR receivers, level translators, and other precision voltage monitoring applications.
