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Product Detailed Parameters
- Description：IC COMPARATOR 4 GEN PUR 14SOIC
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tape & Reel (TR)
- Type：General Purpose
- Number of Elements：4
- Output Type：CMOS, Push-Pull, TTL
- Voltage - Supply, Single/Dual (±)：2.7V ~ 5.5V
- Voltage - Input Offset (Max)：2mV @ 5V
- Current - Input Bias (Max)：0.32µA @ 5V
- Current - Output (Typ)：-
- Current - Quiescent (Max)：300µA
- CMRR, PSRR (Typ)：81.94dB CMRR, 81.94dB PSRR
- Propagation Delay (Max)：40ns
- Hysteresis：1.5mV
- Operating Temperature：-40°C ~ 85°C
- Package / Case：14-SOIC (0.154", 3.90mm Width)
- Mounting Type：Surface Mount
- Supplier Device Package：14-SOIC
- Grade：-
- Qualification：-
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Overview
The MAX9144ESD-T is a quad high-speed comparator from Analog Devices, optimized for 3V and 5V single-supply systems. It features a propagation delay of 40ns with a 10mV overdrive and a supply current of 150μA per channel at 3V. The device operates within a voltage range of 2.7V to 5.5V and supports rail-to-rail input common-mode voltages extending beyond the power rails. It includes internal hysteresis of 1.5mV and CMOS/TTL-compatible outputs that swing to within 300mV of either supply rail without external pullup circuitry.
Feature Summary
- Quad-channel architecture providing four independent comparators in a single package
- Rail-to-rail input capability allowing operation beyond both power-supply rails
- Internal hysteresis ensures clean output switching even with slow-moving signals
- CMOS and TTL logic interface compatibility with outputs pulling close to supply rails
Applications
- Line Receivers
- Threshold Detectors/Discriminators
- Zero-Crossing Detectors
- Sampling Circuits
Procurement Notes
Verify the specific suffix 'T' indicates tape-and-reel packaging when sourcing. Confirm the 'ESD' designation corresponds to the 14-pin SOIC package variant. Ensure the component grade matches the required operating temperature range for the target application environment.
Selection Notes
Select this part for applications requiring multiple comparators with low power consumption and fast response times. It serves as a direct upgrade to older industry-standard comparators like the MAX944. Consider the 14-pin SO package constraints and ensure adequate PCB layout practices are followed to maintain signal integrity.
Part Context
This component belongs to the MAX914x family of single-supply comparators manufactured by Analog Devices. It is designed to replace legacy parts such as the MAX944 while offering improved speed and lower power characteristics. The quad configuration makes it suitable for space-constrained designs requiring multiple comparison functions.
Replacement Considerations
The datasheet identifies the MAX944 as an industry-standard comparator upgraded by this device.
