LMV7239M7 Integrated Circuits (ICs)

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The LMV7239M7 belongs to the category of comparative circuits, which compares a reference voltage to an input voltage, known as the VIN voltage. The output is a binary code indicating the relationship between these two voltages. The device is a dual voltage comparator, meaning that it has two input channels and one output channel. The output can be configured to drive either a logic gate or an open-drain output circuit.

The LMV7239M7 is specifically designed to improve linearity and throughput rates in applications that require high performance analog-to-digital conversion. This device operates in a wide range of temperatures, from 0°C to 125°C, and is guaranteed to maintain linearity and ultra-low offset over this range. It is also capable of rejecting power and ground noise, allowing support in noisy environments.

The main application field of the LMV7239M7 is in Analog-to-Digital Converters (ADC). An ADC converts an analog signal into a digital word that can be read by the processor. Compared to traditional discrete ADC solutions the LMV7239M7 offers significant output range and greater accuracy by integrating comparator and low-level drain drive circuitry into a single IC. The device has a guaranteed maximum non-linearity error of 1-LSB and extremely low offset voltage. Additionally, the comparator input stages are power/ground noise immune.

The LMV7239M7 also finds use in signal processing and digital filter applications, automotive sensors, industrial controls, and power management. It can be used to measure the peak voltage, peak signal-to-noise ratio, or RMS amplitude of a signal, or to detect signal crossings.

The working principle of the LMV7239M7 is based on voltage comparison. The two input voltages, VINP and VINN, are compared with a reference voltage set by the VREF pin. When VINP exceeds VREF the output will be Logic High and the output terminal OFP will be driven low. Conversely, when VINN exceeds VREF the output will be Logic Low and the output terminal OFN will be driven high. The output can be further configured as a logic gate by driving one of the output pins with a logic signal.

The LMV7239M7 also features an overvoltage (OV) protection circuitry that limits the reference voltage, VREF, to a value below the OV threshold and makes the device immune to an accidental overvoltage on the VREF pin. The device has an active-low reset input, making it suitable for systems that are periodically reset. In addition, the device incorporates a low power shutdown mode to reduce power consumption without having to un-power the device.

The specific data is subject to PDF, and the above content is for reference