MAX9693EPE+

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Linear–comparators are devices that compare a given input signal to a reference signal, and indicate when the two signals have the same magnitude. The MAXIM Integrated MAX9693EPE+ linear-comparator IC is designed to provide precise comparison performance from −45°C to +125°C. It is optimized for use in sensor–signal conditioning, portable medical equipment, temperature control and other applications that require precise comparisons. This article will provide a description of the application field and working principle of the MAX9693EPE+.

The MAX9693EPE+ comes in an 8-lead, space-saving, plastic SOT363 package that is rated for operation from −45°C to +125°C. It includes a precision reference, an amplifier, a comparator, and a logic output circuit in a single package. The amplifier is designed to optimize the comparator\'s matching performance. The output circuit is optimized for improved performance and tight logic levels. The MAX9693EPE+ also features a wide power supply voltage range that extends down to 1.8V, and low power consumption tolerances.

The MAX9693EPE+ is best suited for applications where precision comparison performance is required over a wide temperature range. It can be used in any system or application needing precise comparison with a wide variety of input signals. Moreover, its low-power consumption makes it suitable for mobile and battery-powered devices.

Applications for the MAX9693EPE+ include temperature control, pressure-measurement systems, industrial process control, water quality monitoring, medical instruments, and aerospace systems. It is also ideal for use in any application requiring reliable and accurate performance over a wide temperature range.

The operation of the MAX9693EPE+ is based on the comparison between the reference voltage and the input signal. When the input signal reaches the same or higher magnitude than the reference signal, the logic output of the device is compelled to turn on. This forces the output voltage to reach a logic high state. If, however, the input signal does not reach the same or higher magnitude than the reference signal, the logic output is forced to remain off, and the output voltage is forced to remain low.

The MAX9693EPE+ employs two dedicated reference pins that can be used to set the reference voltage in order to fine-tune the comparison performance. The two reference pins can also be used to adjust the input signal offset. The reference voltage range can be set between 0.8V and 4.2V, and the input offset can be adjusted from 100µV to 1mV or higher.

The MAX9693EPE+ device also features hysteresis, which is a comparison range where the input signal must rise (or fall) above (or below) the positive threshold voltage before the device can change its output state. The amount of hysteresis is determined by the user and can be adjusted to match the particular application requirements.

The device also features open-drain output configuration, which allows lower power consumption and improved noise immunity. In addition, the device is designed to operate in applications with minimal interference from external noise sources, such as power supply noise, EMI and RFI. The device is also immune to latch-up and provides thermal protection.

The MAX9693EPE+ is a versatile comparison IC for applications requiring precise comparison performance. It features a wide range of features, including a precision reference, an amplifier, a comparator, and a logic output circuit, as well as adjustable hysteresis and a wide power supply voltage range. Its low power consumption and reliability make it suitable for many applications, including temperature control, medical instruments, industrial process control, and aerospace systems.

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