Overview
The LMV7239M5X/NOPB, produced by Texas Instruments, is an ultra-low power, low voltage comparator with a propagation delay of 75 ns. This device operates over a full supply voltage range of 2.7 V to 5.5 V, making it ideal for applications requiring low power consumption and high speed. The LMV7239 features a push-pull output stage, eliminating the need for an external pull-up resistor, and it has a greater than rail-to-rail common-mode voltage range, allowing for both ground and supply sensing.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|
| Supply Voltage Range | 2.7 | - | 5.5 | V |
| Propagation Delay | 75 | 75 | 96 | ns |
| Supply Current | 52 | 65 | 110 | µA |
| Input Offset Voltage | -6 | ±1 | 6 | mV |
| Input Bias Current | 30 | 400 | 600 | nA |
| Common-Mode Rejection Ratio | 52 | 67 | - | dB |
| Power Supply Rejection Ratio | 65 | 85 | - | dB |
| Input Common-Mode Voltage Range | V- - 0.2 | - | V+ + 0.2 | V |
| Output Swing High | V+ - 0.25 | V+ - 0.15 | V+ - 0.01 | V |
| Output Short Circuit Current (Sourcing) | 15 | 25 | 55 | mA |
| Output Rise Time (10% to 90%) | - | 1.2 | - | ns |
| Output Fall Time (90% to 10%) | - | 1.2 | - | ns |
Key Features
- Ultra-low power consumption: 65 µA at 5 V supply voltage.
- Low propagation delay: 75 ns.
- Rail-to-rail input common-mode voltage range: extends 200 mV below ground and 200 mV above supply.
- Push-pull output stage (LMV7239): eliminates the need for an external pull-up resistor.
- Open drain output (LMV7235): requires an external pull-up resistor for level shifting applications.
- Available in space-saving packages: 5-pin SOT-23 and 5-pin SC70.
- Ideal for 2.7-V and 5-V single-supply applications.
Applications
- Portable and battery-powered systems.
- Set top boxes.
- High-speed differential line receivers.
- Window comparators.
- Zero-crossing detectors.
- High-speed sampling circuits.
Q & A
- What is the propagation delay of the LMV7239?
The propagation delay of the LMV7239 is 75 ns.
- What is the supply current consumption of the LMV7239 at 5 V?
The supply current consumption is 65 µA at 5 V.
- What is the input common-mode voltage range of the LMV7239?
The input common-mode voltage range extends 200 mV below ground and 200 mV above supply.
- Does the LMV7239 require an external pull-up resistor?
No, the LMV7239 has a push-pull output stage and does not require an external pull-up resistor.
- In what packages is the LMV7239 available?
The LMV7239 is available in 5-pin SOT-23 and 5-pin SC70 packages.
- What are some typical applications of the LMV7239?
Typical applications include portable and battery-powered systems, set top boxes, high-speed differential line receivers, window comparators, zero-crossing detectors, and high-speed sampling circuits.
- What is the output swing high for the LMV7239?
The output swing high for the LMV7239 is V+ - 0.25 V to V+ - 0.01 V.
- What is the output short circuit current for the LMV7239?
The output short circuit current for sourcing is 15 mA to 55 mA.
- How does the LMV7235 differ from the LMV7239 in terms of output stage?
The LMV7235 has an open drain output that requires an external pull-up resistor, whereas the LMV7239 has a push-pull output stage.
- What is the common-mode rejection ratio of the LMV7239?
The common-mode rejection ratio is 52 dB to 67 dB.
