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Product Detailed Parameters
- Description：IC COMPARATOR 4 GEN PUR 14DIP
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tube
- Type：General Purpose
- Number of Elements：4
- Output Type：TTL
- Voltage - Supply, Single/Dual (±)：4.5V ~ 11V
- Voltage - Input Offset (Max)：2mV @ 5V
- Current - Input Bias (Max)：0.3µA @ 5V
- Current - Output (Typ)：-
- Current - Quiescent (Max)：1mA
- CMRR, PSRR (Typ)：86.02dB CMRR, 86.02dB PSRR
- Propagation Delay (Max)：50ns
- Hysteresis：-
- Operating Temperature：0°C ~ 70°C
- Package / Case：14-DIP (0.300", 7.62mm)
- Mounting Type：Through Hole
- Supplier Device Package：14-PDIP
- Grade：-
- Qualification：-
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Overview
The MAX908CPD is a quad, high-speed, ultra-low-power voltage comparator designed for single +5V supply operation. It features a typical propagation delay of 40ns with 5mV input overdrive and consumes only 3.5mW per comparator. The device operates within a supply range of 4.5V to 5.5V and includes internal hysteresis for clean switching. It offers a wide input common-mode range extending from 200mV below ground to within 1.5V of the positive rail. Outputs are TTL-compatible without external pullups, and inputs/outputs support continuous short-circuit protection.
Feature Summary
- Quad configuration with built-in internal hysteresis for stable output switching
- TTL-compatible outputs eliminating the need for external pullup circuitry
- Continuous short-circuit protection on all inputs and outputs
- Ultra-low power consumption optimized for single-supply systems
Applications
- Battery-powered systems requiring low current draw
- High-speed A/D converters
- Threshold detectors and discriminators
- Zero-crossing detectors
Procurement Notes
Verify the specific suffix 'CPD' corresponds to the 14-pin Plastic DIP package and the commercial temperature range (0°C to +70°C). Confirm that the component is sourced as an original Maxim Integrated product, noting that this part is designated Not Recommended for New Designs due to manufacturing process availability constraints.
Selection Notes
Select the MAX908CPD when a quad comparator topology is required alongside strict power budget constraints in single-supply environments. Ensure the application does not require dual supplies or extended industrial temperature ranges, which would necessitate the 'E' series variants instead.
Part Context
This component belongs to the MAX907/MAX908/MAX909 family of comparators manufactured by Maxim Integrated. The MAX908 specifically provides four independent channels in a single package, distinguishing it from the dual MAX907 and single-channel MAX909. All members share the same core architecture and electrical characteristics.
Replacement Considerations
The datasheet explicitly states the MAX908 is Not Recommended for New Designs. Consult technical support or check for industry second-source equivalents if sourcing new production units.
