Overview
The LMH7322SQ/NOPB is a high-speed dual comparator produced by Texas Instruments. It is characterized by its fast propagation delay of 700 ps and low dispersion, making it suitable for high-speed applications. The device operates over a wide supply voltage range of 2.7V to 12V and features adjustable hysteresis to prevent oscillations. The LMH7322 is available in a 24-pin WQFN package and supports RSPECL outputs and latch inputs, with the option for LVDS compatible levels when used with a VCCO supply voltage of 2.5V.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Propagation Delay | 700 | ps |
| Overdrive Dispersion | 20 mV-1V: 75 ps | ps |
| Fast Rise and Fall Times | 160 | ps |
| Supply Voltage Range | 2.7V to 12V | V |
| Input Common Mode Range | Extends 200 mV below negative rail | V |
| Output Type | RSPECL | |
| Latch Inputs | RSPECL | |
| Package Type | 24-pin WQFN | |
| Operating Temperature Range | -40 to 125 | °C |
Key Features
- Propagation Delay of 700 ps with low dispersion of 75 ps.
- Fast Rise and Fall Times of 160 ps.
- Wide Supply Range of 2.7V to 12V.
- Input Common Mode Range extends 200 mV below the negative rail.
- Adjustable Hysteresis to prevent oscillations.
- RSPECL compatible outputs and latch inputs.
- LVDS compatible levels when used with a VCCO supply voltage of 2.5V.
Applications
- Digital Receivers
- High-Speed Signal Restoration
- Zero-Crossing Detectors
- High-Speed Sampling
- Window Comparators
- High-Speed Signal Triggering
Q & A
- What is the propagation delay of the LMH7322? The propagation delay of the LMH7322 is 700 ps.
- What is the overdrive dispersion of the LMH7322? The overdrive dispersion of the LMH7322 is 75 ps for overdrive ranges from 20 mV to 1V.
- What is the supply voltage range of the LMH7322? The supply voltage range of the LMH7322 is 2.7V to 12V.
- What type of outputs does the LMH7322 have? The LMH7322 has RSPECL compatible outputs.
- Can the LMH7322 outputs be LVDS compatible? Yes, the outputs can be LVDS compatible when used with a VCCO supply voltage of 2.5V.
- What is the package type of the LMH7322? The LMH7322 is available in a 24-pin WQFN package.
- What is the operating temperature range of the LMH7322? The operating temperature range of the LMH7322 is -40 to 125°C.
- What are some common applications of the LMH7322? Common applications include digital receivers, high-speed signal restoration, zero-crossing detectors, high-speed sampling, window comparators, and high-speed signal triggering.
- Does the LMH7322 have adjustable hysteresis? Yes, the LMH7322 has adjustable hysteresis to prevent oscillations.
- What are the rise and fall times of the LMH7322 outputs? The rise and fall times of the LMH7322 outputs are 160 ps.
