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MAX9022
Micropower, Ultra-Small, Single/Dual/Quad Single-Supply Comparators
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Key Features
Applications/Uses
Parametric specs for Comparators
| tPD (ns) (typ) | 3000 |
| VOS (mV) (max) | 8 |
| VSUPPLY (Total) (V) (min) | 2.5 |
| VSUPPLY (Total) (V) (max) | 5.5 |
| # Comparators | 2 |
| Input Range | to Neg. Rail |
| ICC per Comp. (µA) (max) | 5 |
| Logic Out | Push-Pull |
| Oper. Temp. (°C) | -40 to +125 |
| Package/Pins | SOIC (N)/8 SOT23/8 UMAX/8 |
| Budgetary Price (See Notes) | 0.62 |
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Simplified Block Diagram
Technical Docs
| Data Sheet | Micropower, Ultra-Small, Single/Dual/Quad Single-Supply Comparators | Jan 18, 2007 | |
| App Note | AC-Based Continuity Tester Finds Single-Ended Faults |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
Parameters
Parametric specs for Comparators
| tPD (ns) (typ) | 3000 |
| VOS (mV) (max) | 8 |
| VSUPPLY (Total) (V) (min) | 2.5 |
| VSUPPLY (Total) (V) (max) | 5.5 |
| # Comparators | 2 |
| Input Range | to Neg. Rail |
| ICC per Comp. (µA) (max) | 5 |
| Logic Out | Push-Pull |
| Oper. Temp. (°C) | -40 to +125 |
| Package/Pins | SOIC (N)/8 SOT23/8 UMAX/8 |
| Budgetary Price (See Notes) | 0.62 |
Key Features
- Low-Cost Solution Available in Space-Saving SC70 Packages (Half the Size of SOT23)
- Low 2.8µA Supply Current
- 3µs Propagation Delay
- Internal 4mV Comparator Hysteresis
- Comparator Output Swings Rail-to-Rail
- 2.5 to 5.5V Single-Supply Voltage Range
- No Phase Reversal for Overdriven Inputs
- Space-Saving Packages
- 5-Pin SC70 (MAX9021)
- 8-Pin SOT23 (MAX9022)
- 8-Pin µMAX (MAX9022)
- 14-Pin TSSOP (MAX9024)
Applications/Uses
- Battery-Powered
- Digital Line Receivers
- Keyless Entry Systems
- Mobile Communications
- Photodiode Preamps
- Portable Systems
- Sensor-Signal Detection
- Threshold Detectors/Discriminators
Description
The MAX9021/MAX9022/MAX9024 single/dual/quad comparators are optimized for low-power consumption while still providing a fast output response. They are designed for single-supply applications from 2.5V to 5.5V, but can also operate from dual supplies. These comparators have a 3µs propagation delay and consume 2.8µA of supply current per comparator over the -40°C to +125°C operating temperature range. The combination of low-power, single-supply operation down to 2.5V, and ultra-small footprint makes these devices ideal for portable applications.
The MAX9021/MAX9022/MAX9024 have 4mV of built-in hysteresis to provide noise immunity and prevent oscillations even with a slow-moving input signal. The input common-mode range extends from the negative supply to within 1.1V of the positive supply. The design of the comparator-output stage substantially reduces switching current during output transitions, eliminating powersupply glitches.
The MAX9021 single comparator is available in tiny 5-pin SC70 and SOT23 packages. The MAX9022 dual comparator is available in 8-pin SOT23, µMAX®, and SO packages, and the MAX9024 quad comparator is available in 14-pin TSSOP and SO packages.
The MAX9021/MAX9022/MAX9024 have 4mV of built-in hysteresis to provide noise immunity and prevent oscillations even with a slow-moving input signal. The input common-mode range extends from the negative supply to within 1.1V of the positive supply. The design of the comparator-output stage substantially reduces switching current during output transitions, eliminating powersupply glitches.
The MAX9021 single comparator is available in tiny 5-pin SC70 and SOT23 packages. The MAX9022 dual comparator is available in 8-pin SOT23, µMAX®, and SO packages, and the MAX9024 quad comparator is available in 14-pin TSSOP and SO packages.
Technical Docs
| Data Sheet | Micropower, Ultra-Small, Single/Dual/Quad Single-Supply Comparators | Jan 18, 2007 | |
| App Note | AC-Based Continuity Tester Finds Single-Ended Faults |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
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