Results for: AD22057 in Amplifiers and Comparators
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Amplifiers and Comparators

In electronics, a comparator is a device that compares two voltages or currents and outputs a digital signal indicating which is larger. It has two analog input terminals V_+\, and V_-\, and one binary digital output V_o\,. The output is ideally A comparator consists of a specialized high-gain differential amplifier. They are commonly used in devices that measure and digitize analog signals, such as analog-to-digital converters (ADCs), as well as relaxation oscillators. An operational amplifier (op-amp) has a well balanced difference input and a very high gain. This parallels the characteristics of comparators and can be substituted in applications with low-performance requirements.[4] In theory, a standard op-amp operating in open-loop configuration (without negative feedback) may be used as a low-performance comparator. When the non-inverting input (V+) is at a higher voltage than the inverting input (V-), the high gain of the op-amp causes the output to saturate at the highest positive voltage it can output. When the non-inverting input (V+) drops below the inverting input (V-), the output saturates at the most negative voltage it can output. The op-amp's output voltage is limited by the supply voltage. An op-amp operating in a linear mode with negative feedback, using a balanced, split-voltage power supply, (powered by ± VS) has its transfer function typically written as: V_{out}=A_{o} (V_1 - V_2). However, this equation may not be applicable to a comparator circuit which is non-linear and operates open-loop (no negative feedback)

Linear > Amplifiers and Comparators > Special Purpose Amplifiers

Part No.	DS	Manufacturer	D/C	Qty	Region	Action
AD22057R		ADI	200539+	349	China	Request A Quote
AD22057R		ADI	-	5556	Hong Kong	Request A Quote
AD22057R		ADI	-	1500	China	Request A Quote
AD22057R		ADI	2019+	4142	Singapore	Request A Quote
AD22057R		ADI	2021+	5000	South Korea	Request A Quote
AD22057R		ADI	2020+	2299	China	Request A Quote
AD22057R		ADI	2006+	687	Hong Kong	Request A Quote
AD22057R		ADI	2021+	349	China	Request A Quote
AD22057R-REEL		ADI	201817+	15145	Singapore	Request A Quote
AD22057RZ		ADI	-	2000	Hong Kong	Request A Quote
AD22057RZ		ADI	-	5617	China	Request A Quote
AD22057RZ		ADI	-	900	Hong Kong	Request A Quote
AD22057RZ		ADI	2021+	1000	China	Request A Quote
AD22057RZ		ADI	2023+	8620	China	Request A Quote
AD22057RZ		ADI	2011+	967	Hong Kong	Request A Quote
AD22057RZ		ADI	2020+	6800	China	Request A Quote
AD22057RZ		ADI	2016+	25000	China	Request A Quote
AD22057RZ		ADI	2021+	5000	South Korea	Request A Quote
AD22057RZ		ADI	-	35	Poland	Request A Quote
AD22057RZ-REEL		ADI	201608+	2189	Hong Kong	Request A Quote
AD22057RZ-REEL		ADI	201608+	2214	China	Request A Quote
AD22057RZ-REEL		ADI	201608+	2214	Taiwan	Request A Quote
AD22057RZ-REEL		ADI	-	2214	Hong Kong	Request A Quote
AD22057RZ-REEL		ADI	2021+	5000	South Korea	Request A Quote
AD22057RZ-REEL		ADI	201608+	2189	China	Request A Quote

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