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Product Detailed Parameters
- Description：IC COMPARATOR 2 W/LATCH 14SOIC
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tube
- Type：with Latch
- Number of Elements：2
- Output Type：TTL
- Voltage - Supply, Single/Dual (±)：5V ~ 10V, ±2.5V ~ 5V
- Voltage - Input Offset (Max)：4mV @ ±5V
- Current - Input Bias (Max)：10µA @ ±5V
- Current - Output (Typ)：-
- Current - Quiescent (Max)：8mA, 6mA, 3mA
- CMRR, PSRR (Typ)：82.5dB CMRR, 80dB PSRR
- Propagation Delay (Max)：-
- 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 MAX902ESD is a dual-channel high-speed voltage comparator from the MAX900–MAX903 series, manufactured by Analog Devices/Maxim Integrated. It features differential analog inputs and TTL-logic outputs with active internal pull-ups. The device supports separate analog (VCC) and digital (VDD) power supplies or a single combined supply. Key electrical parameters include an 8ns typical propagation delay at 5mV overdrive, 18mW typical power consumption per comparator at +5V, and an input common-mode range that includes the negative rail. It operates within a temperature range of -40°C to +85°C.
Feature Summary
- Features independent TTL-compatible latch inputs for holding output states.
- Supports flexible analog supply voltages ranging from +5V to +10V or ±5V.
- Provides fast propagation delay suitable for high-speed data discrimination.
- Includes active internal pull-ups on TTL-logic outputs.
Applications
- High-speed A/D converters
- Line receivers
- Threshold detectors
- Input trigger circuitry
Procurement Notes
Verify component authenticity through authorized distributors or manufacturer channels. Confirm package integrity and pin alignment against the SOIC-14 specification. Check datasheet revisions for updates regarding the Not Recommended for New Designs status. Ensure environmental compliance matches project requirements before integration into final assemblies.
Selection Notes
Select this part for applications requiring dual comparators with latching capabilities in a small footprint. Consider the MAX9202 for newer designs offering similar speed with reduced power dissipation. Evaluate supply voltage compatibility, as the digital supply requires +5V while the analog supply allows flexibility. Assess board layout constraints due to high-speed sensitivity and ground plane requirements.
Part Context
The MAX902ESD belongs to the MAX900–MAX903 family of high-speed, low-power voltage comparators. This series is designed for fast data-discrimination applications. The 'E' suffix indicates an extended temperature range of -40°C to +85°C, while 'SD' denotes the 14-pin Narrow SO package. The device is marked as Not Recommended for New Designs due to manufacturing process availability.
Replacement Considerations
The MAX9202 is identified as a newer, pin-for-pin compatible replacement offering the same speed with half the power dissipation. Verify functional equivalence and thermal characteristics when substituting.
