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Product Detailed Parameters
- Description：IC COMPARATOR 2 GEN PUR 8SOIC
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tape & Reel (TR)
- Type：General Purpose
- Number of Elements：2
- 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：8-SOIC (0.154", 3.90mm Width)
- Mounting Type：Surface Mount
- Supplier Device Package：8-SOIC
- Grade：-
- Qualification：-
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Overview
The MAX9022ASA-T is a dual micropower comparator from the MAX9021/MAX9022/MAX9024 family, manufactured by Analog Devices Inc. It operates on a single supply voltage ranging from 2.5V to 5.5V and consumes 2.8µA of supply current per comparator. The device features a typical propagation delay of 3µs and includes 4mV of internal hysteresis for noise immunity. It utilizes an 8-pin SO package and supports an operating temperature range from -40°C to +125°C.
Feature Summary
- Ultra-low power consumption with 2.8µA supply current per comparator
- Internal 4mV hysteresis prevents output oscillations during slow input transitions
- Rail-to-rail output swing capability minimizes switching current glitches
- No phase reversal occurs even when inputs are overdriven beyond supply rails
Applications
- Battery-powered portable systems
- Mobile communications equipment
- Sensor-signal detection circuits
- Photodiode preamplifier interfaces
- Digital line receivers
Procurement Notes
Verify the specific ordering suffix 'T' indicates tape-and-reel packaging configuration. Confirm RoHS compliance status associated with the '+'. Ensure the manufacturer designation matches Analog Devices or Maxim Integrated as specified in official documentation before procurement.
Selection Notes
Select this component for applications requiring low-power operation within a 2.5V to 5.5V single-supply range. The dual-channel configuration fits designs needing two independent comparators in an 8-pin SO footprint. Verify that the 3µs propagation delay meets system timing requirements.
Part Context
This part belongs to the MAX902x series of micropower, ultra-small, single/dual/quad, single-supply comparators. The MAX9022 variant specifically provides dual channels, distinguishing it from the single-channel MAX9021 and quad-channel MAX9024 options within the same optimized architecture.
Replacement Considerations
Cross-reference with MAX9022AKA+T (SOT23-8) or MAX9022AUA+T (µMAX-8) if package form factor changes are acceptable. Verify pinout compatibility and electrical parameter alignment before substituting.
