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Product Detailed Parameters
- Description：IC COMPARATOR 4 GEN PUR 14SOIC
- 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-SOIC (0.154", 3.90mm Width)
- Mounting Type：Surface Mount
- Supplier Device Package：14-SOIC
- Grade：-
- Qualification：-
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Overview
The MAX908CSD+ 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 voltage 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
- Ultra-low power consumption of 3.5mW per comparator at 5V
- High-speed performance with 40ns propagation delay
- Built-in internal hysteresis eliminates external resistor requirements
- TTL-compatible outputs requiring no external pullup circuitry
Applications
- Battery-powered systems
- High-speed A/D converters
- Threshold detectors/discriminators
- Zero-crossing detectors
Procurement Notes
Verify component authenticity through authorized Analog Devices or Maxim Integrated distributors. Confirm the specific CSD suffix indicates the SO package and commercial temperature range (0°C to +70°C). Ensure compliance with RoHS standards as indicated by the '+' designation. Check current availability status as this part may be subject to limited supply conditions.
Selection Notes
Select the MAX908CSD+ when four independent comparators are required in a compact surface-mount footprint. It is suitable for designs prioritizing low power dissipation alongside high-speed signal processing. Consider the fixed internal hysteresis characteristics during circuit design. Verify that the single +5V supply requirement aligns with the system power architecture.
Part Context
The MAX908CSD+ belongs to the MAX907/MAX908/MAX909 family of dual/quad/single comparators. These devices were manufactured using a bipolar process no longer available for new production. The datasheet remains available for existing users, but the component is not recommended for new designs due to manufacturing constraints.
Replacement Considerations
Contact technical support for information regarding replacement parts or industry second-sources.
