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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：-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 MAX908ESD+ is a dual, high-speed, ultra-low-power voltage comparator designed for single +5V supply systems. It features a 40ns propagation delay with 5mV input overdrive and consumes only 3.5mW per comparator. The device operates within a 4.5V to 5.5V positive supply range and supports an operating temperature from -40°C to +85°C. It incorporates internal hysteresis for clean switching and provides TTL-compatible outputs without external pullup circuitry.
Feature Summary
- Incorporates internal hysteresis to ensure clean output switching even when driven by slow-moving input signals.
- Features TTL-compatible outputs that require no external pullup circuitry.
- Supports continuous short-circuit protection of all inputs and outputs to either supply rail without damage.
Applications
- Battery-Powered Systems
- High-Speed A/D Converters
- Threshold Detectors/Discriminators
Procurement Notes
Verify the component status before procurement as the MAX909 series was manufactured using a process that is no longer available. Confirm compatibility with existing designs rather than new implementations. Ensure the specific ESD suffix matches the required package type and temperature range specifications.
Selection Notes
Select this component for applications requiring a combination of high speed, precision, and ultra-low power dissipation on a single +5V supply. Consider the dual configuration of the MAX908 over the quad MAX909 or single MAX907 based on channel requirements. Verify that the internal hysteresis meets system noise immunity needs without external resistors.
Part Context
The MAX908ESD+ belongs to the MAX907/MAX908/MAX909 family of dual/quad/single comparators. These devices are designed to replace older comparators in wide-ranging applications due to their micropower and high-speed characteristics. The MAX908 specifically offers a dual-channel configuration in 14-pin DIP and SO packages.
Replacement Considerations
The MAX909 series is not recommended for new designs due to manufacturing process discontinuation. Consult technical support for available Maxim replacements or industry second-sources suitable for existing users.
