ISL55142IRZ-T

Current - Output (Typ):	--
Base Part Number:	ISL55142
Supplier Device Package:	20-QFN-EP (5x5)
Mounting Type:	Surface Mount
Package / Case:	20-VQFN Exposed Pad
Operating Temperature:	-40°C ~ 85°C
Hysteresis:	--
Propagation Delay (Max):	15ns
CMRR, PSRR (Typ):	--
Current - Quiescent (Max):	12.5mA
Series:	--
Current - Input Bias (Max):	0.025µA @ -3V, 12V
Voltage - Input Offset (Max):	50mV @ -3V, 12V
Voltage - Supply, Single/Dual (±):	10 V ~ 18 V
Output Type:	--
Number of Elements:	2
Type:	Window
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Linear - Comparators

ISL55142IRZ-T is an integrated circuit linear comparator manufactured by Intersil Corporation (Intersil). It is a rail-to-rail CMOS comparator with adjustable input hysteresis. It is designed for wide-range applications requiring good common-mode input voltage range, good linearity, low quiescent current and a low output saturation voltage.

Application Field

The ISL55142IRZ-T is often used in industrial and automotive systems, such as engine control, motor control and power management systems. The comparator is also used in audio and signal processing applications, including low-frequency active filters, comparator-based clock dividers, sample-and-hold circuits, and signal detection circuits. The device offers improved accuracy over amplify-and-compare systems and is capable of operating on both single-supply and dual-supply power systems.

Working Principle

The ISL55142IRZ-T is a linear comparator, meaning it compares two input signals and outputs a logic high if the first signal is greater than the second, or a logic low otherwise. Comparison is typically accomplished by applying one signal to the inverting input of the comparator and the other signal to the non-inverting input. When the signals are equal, the output of the comparator is high-impedance or in a high-impedance state. When one input is greater than the other, the output of the comparator is driven to a logic low or high, depending upon the configuration of the inputs. The ISL55142IRZ-T offers improved accuracy compared to simple amplify-and-compare systems. It has excellent linearity and low distortion characteristics, making it suitable for signal processing applications such as active low-pass filters, signal detection and signal conditioning. The adjustable input hysteresis prevents false triggering due to noise in the signal. The comparator has an operating temperature range of -40°C to +125°C and a supply voltage range of 2.8V to 13.2V, making it easily adaptable to many power systems. The low quiescent current and low output saturation voltage further enhance its flexibility and make it ideal for system integration. In conclusion, the ISL55142IRZ-T is a linear comparator that is suitable for a wide range of industrial and automotive applications that require accuracy and low power consumption. Its adjustable input hysteresis, good linearity and low output saturation voltage make it an attractive device for applications such as active filters, signal detection and power management. With a wide operating temperature range and supply voltage range, it is also suitable for use in portable systems and other applications where power consumption is a high priority.

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