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Product Detailed Parameters
- Description：IC COMPARATOR 1 GEN PUR SC70-5
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tape & Reel (TR),Bulk
- Type：General Purpose
- Number of Elements：1
- Output Type：CMOS, Rail-to-Rail, TTL
- Voltage - Supply, Single/Dual (±)：2.5V ~ 5.5V, ±1.25V ~ 2.75V
- Voltage - Input Offset (Max)：1mV @ 5V
- Current - Input Bias (Max)：0.003µA @ 5V
- Current - Output (Typ)：-
- Current - Quiescent (Max)：5µA
- CMRR, PSRR (Typ)：100dB CMRR, 80dB PSRR
- Propagation Delay (Max)：8µs
- Hysteresis：4mV
- Operating Temperature：-40°C ~ 125°C
- Package / Case：5-TSSOP, SC-70-5, SOT-353
- Mounting Type：Surface Mount
- Supplier Device Package：SC-70-5
- Grade：-
- Qualification：-
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Overview
The MAX9021AXK-T is a single-supply analog comparator manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range of 2.5V to 5.5V and consumes 2.8µA of supply current per device. The component features a typical propagation delay of 3µs and includes internal 4mV hysteresis for noise immunity. It utilizes a 5-pin SC70 package and supports an operating temperature range from -40°C to +125°C.
Feature Summary
- Ultra-small footprint available in space-saving SC70 packages
- Low power consumption with 2.8µA supply current per comparator
- Internal 4mV comparator hysteresis prevents oscillations
- Rail-to-rail output swing capability
Applications
- Battery-powered portable systems
- Mobile communications
- Sensor-signal detection
- Photodiode preamps
- Digital line receivers
Procurement Notes
Verify the specific ordering suffix against official documentation to confirm package type and RoHS compliance status. Confirm that the 'T' suffix indicates tape and reel packaging. Ensure the part number matches the exact manufacturer designation provided in the datasheet to avoid compatibility issues during integration.
Selection Notes
Select this component when low power consumption and small physical size are critical design constraints. The built-in hysteresis simplifies circuit design for noisy environments. Verify that the required propagation delay and input common-mode voltage range align with the system specifications before finalizing the selection.
Part Context
This device belongs to the MAX9021/MAX9022/MAX9024 family of micropower comparators. The MAX9021 variant specifically provides a single comparator channel, whereas other family members offer dual or quad configurations. All variants share similar electrical characteristics optimized for portable applications.
Replacement Considerations
Consult official documentation for confirmed substitute part numbers. Cross-referencing requires matching pinout, electrical parameters, and package dimensions to ensure functional equivalence without redesigning the host circuit.
