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Product Detailed Parameters
- Description：IC COMPARATOR 1 GEN PUR SC70-5
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：General Purpose
- Number of Elements：1
- Output Type：CMOS, Rail-to-Rail, TTL
- Voltage - Supply, Single/Dual (±)：2.7V ~ 5.5V
- Voltage - Input Offset (Max)：5mV @ 5V
- Current - Input Bias (Max)：0.5µA @ 5V
- Current - Output (Typ)：-
- Current - Quiescent (Max)：200µA
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：30ns (Typ)
- Hysteresis：1.2mV
- Operating Temperature：-40°C ~ 125°C
- Package / Case：5-TSSOP, SC-70-5, SOT-353
- Mounting Type：Surface Mount
- Supplier Device Package：SC-70-5
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The MAX49140AXK/V+T is a single high-speed comparator designed for 3V and 5V systems. It features a propagation delay of 30ns with 10mV overdrive and a typical supply current of 100μA at VDD = 3V. The device operates within a supply voltage range of 2.7V to 5.5V and supports an input common-mode voltage extending from ground to the positive rail. It includes internal hysteresis of 1.2mV, an offset voltage of 500μV (typ), and outputs that swing to within 0.3V of either supply rail. The component is housed in a 5-pin SC70 package and is qualified to AEC-Q100 standards for automotive applications.
Feature Summary
- Rail-to-rail input voltage range compatible with single-supply operation
- Internal fixed hysteresis eliminates external resistor requirements
- CMOS and TTL logic interface without external pullup circuitry
- Continuous short-circuit tolerance on all input and output pins
Applications
- Car battery-powered systems
- Line receivers
- Threshold detectors and discriminators
- Zero-crossing detectors
- Sampling circuits
Procurement Notes
Verify the specific suffix /V+T indicates automotive qualification and tape-and-reel packaging. Confirm RoHS compliance status via official documentation. Check current production availability as distribution channels may vary. Ensure the ordering code matches the required temperature range and package type before procurement.
Selection Notes
Select this component when low power consumption and high speed are critical in portable or automotive designs. The rail-to-rail inputs allow direct interfacing with various signal sources. Internal hysteresis simplifies design by preventing oscillation on slow-moving signals. Verify that the load capacitance does not excessively degrade the slew rate due to the current-driven output stage.
Part Context
This part belongs to the Maxim Integrated MAX49140 family of comparators. It is specifically engineered for applications requiring fast response times and minimal power usage in constrained environments. The automotive qualification ensures reliability under varying thermal conditions found in vehicle electronics.
Replacement Considerations
No public confirmed substitute part numbers are available in the provided documentation.
FAQ
How does the internal hysteresis function?
The device includes a fixed internal hysteresis of 1.2mV, which creates two trip points to prevent oscillation caused by noise or parasitic feedback on slow-moving input signals.
What is the output drive capability?
The output pulls to within 0.3V of either supply rail without external pullup or pulldown circuitry, making it compatible with CMOS and TTL logic levels.
