Overview
The LMV7239M5/NOPB is an ultra-low power, low voltage comparator from Texas Instruments. This device is part of the LMV7235 and LMV7239 series, known for their high speed and low power consumption. The LMV7239 operates over a supply voltage range of 2.7 V to 5.5 V and is designed for single-supply applications. It features a propagation delay of 75 ns and a low supply current of 65 µA at 5 V, making it ideal for battery-powered and portable systems. The comparator is available in space-saving 5-pin SOT-23 and SC70 packages, which are suitable for applications where size and power efficiency are critical.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (V+ - V−) | 2.7 | 5.5 | V | |
| Operating Temperature Range | -40 | 85 | °C | |
| Propagation Delay | 75 | ns | ||
| Supply Current | 52 | 65 | 95 | µA |
| Input Offset Voltage | -6 | ±0.8 | 6 | mV |
| Input Common-Mode Voltage Range | V− - 0.2 | V+ + 0.2 | V | |
| Output Swing High (LMV7239 only) | V+ - 0.35 | V+ - 0.26 | V | |
| Output Short Circuit Current (Sourcing, VO = 0 V) | 15 | 25 | mA | |
| Package Type | 5-Pin SOT-23, 5-Pin SC70 |
Key Features
- Ultra-low power consumption: 65 µA at 5 V.
- High speed: 75 ns propagation delay.
- Rail-to-rail input common-mode voltage range: extends 200 mV below ground and 200 mV above supply.
- Push-pull output stage (LMV7239): allows operation without an external pullup resistor.
- Available in space-saving packages: 5-pin SOT-23 and 5-pin SC70.
- Ideal for 2.7-V and 5-V single-supply applications.
- High common-mode rejection ratio (CMRR) and power supply rejection ratio (PSRR).
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 supply voltage range of the LMV7239?
The LMV7239 operates over a supply voltage range of 2.7 V to 5.5 V.
- What is the propagation delay of the LMV7239?
The propagation delay of the LMV7239 is 75 ns.
- What is the typical supply current of the LMV7239 at 5 V?
The typical supply current is 65 µA at 5 V.
- What types of packages are available for the LMV7239?
The LMV7239 is available in 5-pin SOT-23 and 5-pin SC70 packages.
- Does the LMV7239 have rail-to-rail input capability?
- What is the output type of the LMV7239?
The LMV7239 features a push-pull output stage.
- 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 common-mode rejection ratio (CMRR) of the LMV7239?
The CMRR is typically 62 dB for the LMV7239.
- What is the power supply rejection ratio (PSRR) of the LMV7239?
The PSRR is typically 85 dB for the LMV7239.
- What is the output short circuit current of the LMV7239?
The output short circuit current (sourcing, VO = 0 V) is typically 15 mA to 25 mA.
