My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX9022AKA
- Part No.:
- MAX9022AKA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- SOT-23-8
- Datasheet:
-
MAX9022AKA.pdf
- Description:
- IC COMPARATOR 2 GEN PUR SOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:593
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX9022AKA from Maxim Integrated is a dual micropower comparator optimized for single-supply operation from 2.5V to 5.5V, delivering 3µs propagation delay and 2.8µA per comparator supply current across –40°C to +125°C. It features 4mV internal hysteresis, rail-to-rail output swing, and input common-mode range extending to within 1.1V of VDD - enabling reliable threshold detection in battery-powered sensor interfaces and portable instrumentation.
For engineers reviewing the MAX9022AKA datasheet, MAX9022AKA pinout, MAX9022AKA application, or MAX9022AKA equivalent, key selection considerations include ultra-low quiescent current, guaranteed hysteresis for noise immunity, dual-channel integration in SOT23-8, and automotive-grade temperature support without external components.
Technical Context
The MAX9022AKA implements two independent high-precision comparators with matched input stages, each featuring built-in 4mV hysteresis to eliminate oscillation on slow-moving or noisy inputs. Its input stage supports common-mode voltages from VSS to (VDD – 1.1V), enabling direct interfacing with sensors operating near ground or rail.
The output stage delivers rail-to-rail swing with <400mV low-level and <400mV high-level voltage drop at 4mA load, while minimizing switching current transients to prevent power-supply glitches - critical for mixed-signal systems sharing analog/digital supplies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.5V to 5.5V single supply - enables direct use with Li-ion, coin-cell, and 3.3V/5V logic rails |
| Supply Current per Comparator | 2.8µA typical - allows >1-year battery life in always-on wake-up circuits |
| Propagation Delay | 3µs at VOD = 100mV, RL = 10kΩ, CL = 15pF - supports kHz-range signal discrimination |
| Hysteresis | 4mV built-in - eliminates false triggering from EMI or sensor noise without external feedback |
| Input Offset Voltage | ±1mV typical, ±8mV max - ensures accurate thresholding in precision level-detection applications |
| Common-Mode Input Range | VSS to (VDD – 1.1V) - accommodates ground-referenced photodiode or thermistor outputs |
| Output Swing | Rail-to-rail - drives CMOS logic directly without level-shifting circuitry |
Pinout & Package
MAX9022AKA is housed in an 8-pin SOT23 package (JEDEC MO-178AA), measuring 2.9mm × 1.6mm × 1.1mm with gull-wing leads. This compact footprint supports high-density PCB layouts in space-constrained portable designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUTA | Comparator A open-drain or push-pull output - configurable via external pull-up for logic-level compatibility |
| 2 | INA− | Comparator A inverting input - accepts signals down to VSS for ground-referenced sensing |
| 3 | INA+ | Comparator A noninverting input - used with reference or sensor signal for positive-edge detection |
| 4 | VSS | Negative supply terminal - must be connected to system ground or negative rail |
| 5 | VDD | Positive supply terminal - requires 0.1µF ceramic bypass capacitor to minimize supply noise |
| 6 | INB+ | Comparator B noninverting input - enables dual-threshold or window-comparator configurations |
| 7 | INB− | Comparator B inverting input - supports differential or inverted-sense signal routing |
| 8 | OUTB | Comparator B output - independently controllable for dual-channel decision logic |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low supply current | 2.8µA per comparator - extends battery life in IoT edge nodes and wearables |
| Built-in 4mV hysteresis | Eliminates need for external positive-feedback resistors in noise-prone environments |
| Rail-to-rail output swing | Drives 3.3V or 5V CMOS inputs directly without level shifters or pull-up resistors |
| No phase reversal on overdrive | Maintains correct output polarity even when inputs exceed common-mode range |
| Automotive-grade temp range | –40°C to +125°C operation - qualified for under-hood and industrial control applications |
Applications
| Battery-Powered Portable Systems | Sensor-Signal Detection |
|---|---|
Use Scenario: Low-power voltage monitoring in handheld medical devices and wireless sensors. IC Role / Device Role / Timing Role: Dual comparator performing simultaneous low-battery warning and charge-complete detection. Use Value: 2.8µA total quiescent current enables multi-year operation on CR2032 cells without duty cycling. | Use Scenario: Threshold discrimination for analog-output ambient light or temperature sensors. IC Role / Device Role / Timing Role: Precision level detector converting linear sensor output into digital presence/absence signals. Use Value: 4mV internal hysteresis rejects 10mV peak-to-peak EMI without external components. |
| Photodiode Preamps | Threshold Detectors / Discriminators |
Use Scenario: Zero-crossing and pulse-width detection in optical smoke detectors. IC Role / Device Role / Timing Role: Fast-response comparator amplifying weak photodiode current into clean TTL pulses. Use Value: 3µs propagation delay supports >100kHz modulation frequencies in pulsed-light sensing. | Use Scenario: Digital line receiver for legacy RS-232 or industrial current-loop signals. IC Role / Device Role / Timing Role: Dual-channel discriminator reconstructing data from degraded analog waveforms. Use Value: Input common-mode range to VSS allows direct connection to unbuffered current-source receivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual micropower comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV3702IDR | Higher supply current (1.8µA per comparator vs. 2.8µA), but slower propagation delay (6µs); no built-in hysteresis | Requires external hysteresis resistors for noise immunity; better suited for low-noise, low-speed precision thresholds | Select TLV3702IDR only when lower quiescent current outweighs need for integrated hysteresis and speed |
| LMV7235M5X | Lower propagation delay (220ns), higher supply current (32µA), no internal hysteresis, rail-to-rail input | Optimized for high-speed zero-crossing; unsuitable for battery-critical applications due to 11× higher current | Choose LMV7235M5X only when sub-microsecond response is mandatory and power budget permits |
Compared with TLV3702IDR and LMV7235M5X, the MAX9022AKA uniquely balances ultra-low power, integrated noise immunity, and automotive temperature support in a space-saving SOT23-8 package - making it optimal for always-on, battery-constrained detection systems where reliability and component count matter.
Availability
MAX9022AKA is available at Aetrix Electronics and suitable for battery-powered portable systems, sensor-signal detection, and photodiode preamp applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX9022AKA includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Maxim Integrated (now part of Analog Devices) is a semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, automotive, and communications markets.
The MAX9022AKA belongs to Maxim's micropower comparator product line, designed specifically for ultra-low-power threshold detection in portable and harsh-environment electronics where size, current, and reliability are critical.
FAQ
What is the operating temperature range for MAX9022AKA?
The MAX9022AKA is specified for continuous operation from –40°C to +125°C, meeting automotive AEC-Q100 stress-test requirements. This full range is guaranteed for all electrical parameters including supply current, propagation delay, and input offset voltage - enabling deployment in under-hood, industrial, and outdoor equipment without derating.
Does MAX9022AKA require external hysteresis components?
No, the MAX9022AKA includes 4mV of internal hysteresis, eliminating the need for external positive-feedback resistors in most noise-immunity applications. This built-in feature ensures stable switching even with slow-moving or noisy input signals, reducing bill-of-materials count and PCB area versus comparators requiring external hysteresis networks.
Can MAX9022AKA operate from a 2.5V single supply?
Yes, the MAX9022AKA is fully specified to operate from a 2.5V single supply up to 5.5V. At 2.5V, it maintains 2.8µA supply current per comparator, 3µs propagation delay, and rail-to-rail output swing - making it compatible with coin-cell and single-Li-ion battery systems without voltage boosting.
What package type is used for MAX9022AKA?
The MAX9022AKA uses an 8-pin SOT23 package (package code K8-5), with JEDEC MO-178AA dimensions of 2.9mm × 1.6mm × 1.1mm. This ultra-small outline supports high-density layouts and automated assembly, and is pin-compatible with other dual comparators in the same footprint such as the MAX9022AUA (µMAX) and MAX9022ASA (SO).
Is MAX9022AKA suitable for photodiode current-to-voltage conversion circuits?
While the MAX9022AKA itself is not a transimpedance amplifier, it is commonly paired with photodiode preamp circuits as the final-stage comparator. Its input bias current of 3nA typical and common-mode range extending to VSS allow direct interface with op-amp-based TIA outputs - enabling precise, low-power optical pulse detection in smoke alarms and optical encoders.
MAX9022AKA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- SOT-23-8
- Series:
- MAX9022
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 2
- Output Type:
- Push-Pull
- Voltage - Supply, Single/Dual (±):
- 2.5V ~ 5.5V
- :
- 8mV @ 5V
- Voltage - Input Offset (Max):
- 0.08µA @ 5V
- Current - Input Bias (Max):
- 50mA @ 5V
- Current - Output (Typ):
- 5µA
- Current - Quiescent (Max):
- 100dB, 80dB PSRR
- CMRR, PSRR (Typ):
- 8µs (Typ)
- Propagation Delay (Max):
- 4mV
- Hysteresis:
- -40°C ~ 125°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- SOT-23-8
MAX9022AKA FAQ
1.How can I place an order for MAX9022AKA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX9022AKA on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MAX9022AKA reliable?
The price and inventory of MAX9022AKA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX9022AKA is usually 5 days.
3.What payment methods are accepted for MAX9022AKA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX9022AKA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX9022AKA?
MAX9022AKA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX9022AKA order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MAX9022AKA?
For technical support, including MAX9022AKA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX9022AKA requirements.
6.How does Aetrix verify that MAX9022AKA is sourced from the original manufacturer or authorized distributors?
All MAX9022AKA products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MAX9022AKA meets industry standards.
7.What is the process for return or replacement of MAX9022AKA?
All MAX9022AKA units undergo pre-shipment inspection (PSI). If there is an issue with MAX9022AKA, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MAX9022AKA part is unused and in its original packaging.
Return procedure for MAX9022AKA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX9022AKA Tags
-
LM2903DR
Texas Instruments
-
LM339DR
Texas Instruments
-
LM339PWR
Texas Instruments
-
LM393DT
STMicroelectronics
-
LM2901PWR
Texas Instruments
-
LM2903DT
STMicroelectronics
-
LM393DR
Texas Instruments
-
LM239DR
Texas Instruments
-
LM339APWR
Texas Instruments
-
LM2903P
Texas Instruments
-
LM393ADR
Texas Instruments
-
NCX2200GMAZ
NXP USA Inc.
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
