
Allicdata Part #: | MAX9109ESA-T-ND |
Manufacturer Part#: |
MAX9109ESA-T |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Maxim Integrated |
Short Description: | IC COMPARATOR LP SGL 8-SOIC |
More Detail: | Comparator with Latch TTL 8-SOIC |
DataSheet: | ![]() |
Quantity: | 1000 |
1 +: | 0.00000 |
Current - Output (Typ): | -- |
Base Part Number: | MAX9109 |
Supplier Device Package: | 8-SOIC |
Mounting Type: | Surface Mount |
Package / Case: | 8-SOIC (0.154", 3.90mm Width) |
Operating Temperature: | -40°C ~ 85°C |
Hysteresis: | 2mV |
Propagation Delay (Max): | 25ns |
CMRR, PSRR (Typ): | 86.02dB CMRR, 86.02dB PSRR |
Current - Quiescent (Max): | 700µA |
Series: | -- |
Current - Input Bias (Max): | 0.125µA @ 5V |
Voltage - Input Offset (Max): | 1.6mV @ 5V |
Voltage - Supply, Single/Dual (±): | 4.5 V ~ 5.5 V |
Output Type: | TTL |
Number of Elements: | 1 |
Type: | with Latch |
Part Status: | Obsolete |
Packaging: | Tape & Reel (TR) |
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Linear - Comparators
Linear-Comparators are semiconductor devices used to compare two analog voltages or current signals at the same time and then signal the unequal or equal status. They are used in different fields, especially in signal conditioning and interface circuits. The MAX9109ESA-T is one of the most popular linear-comparators in use. This article will discuss the application field and working principle of the MAX9109ESA-T.
Application Field
The MAX9109ESA-T linear-comparator is a single-supply comparator that can be used in various application fields. For example, it can be used in power-supply regulation, current monitoring, precision level shift, rail-to-rail threshold detection, touch-screen controller, portable medical device, and over/under-temperature protection, etc. MAX9109ESA-T comparators have a low quiescent supply current of 1.8 µA and a wide supply voltage range of 1.6 V to 5.5 V, which makes them ideal for low-power applications.
Working Principle
The MAX9109ESA-T consists of two input voltage pins (VINP and VINM), an output terminal (VOUT), and a power supply terminal (VDD). It works on the principle of comparing two analog voltages or currents. When the signals applied to the two input pins are unequal, the output terminal signals a high state. When the signals applied to the two input pins are equal, the output terminal signals a low state.
The MAX9109ESA-T is an open drain output device. This means that VOUT is always pulled down to 0 V by the internal N-channel FET. When the two input voltages (VINP and VINM) are unequal, the internal N-channel FET is turned off and the output voltage (VOUT) is pulled up to the same value as the higher of the two input voltages (VINP and VINM). When the two input voltages are equal, the internal N-channel FET is turned on and the output voltage is pulled down to 0 V. A pull-up resistor is normally added for increased flexibility when using the comparator.
The MAX9109ESA-T has low input offset voltage and low offset drift, and the common-mode rejection ratio is high to ensure high accuracy, stability, and reliability. The device also features protection against over-voltage conditions due to electro-static discharge (ESD) and reverse voltage. The MAX9109ESA-T has a wide supply voltage range of 1.6 V to 5.5 V, and its high input impedance allows it to be used in a variety of applications.
Conclusion
The MAX9109ESA-T linear-comparator is a widely used device with a wide range of applications. It is an open-drain output device that works on the principle of comparing two analogue voltages or currents. It features low input offset voltage and low offset drift, as well as a high common-mode rejection ratio for reliable performance. The device is also protected against over-voltage conditions due to ESD and reverse voltage, and its low quiescent supply current and wide supply voltage range of 1.6 V to 5.5 V make it ideal for low-power applications.
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