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Analog Devices Inc./Maxim Integrated MAX9024ASD+T
- Part No.:
- MAX9024ASD+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX9024ASD+T.pdf
- Description:
- IC COMPARATOR 4 GEN PUR 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,263
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Product details
Overview
MAX9024ASD+T from Analog Devices is a quad micropower comparator optimized for single-supply operation from 2.5V to 5.5V, delivering 3μs propagation delay, 2.8μA per comparator supply current, and 4mV internal hysteresis - ideal for battery-powered portable systems requiring rail-to-rail output swing and noise-immune threshold detection.
For engineers reviewing the MAX9024ASD+T datasheet, MAX9024ASD+T pinout, MAX9024ASD+T application, or MAX9024ASD+T equivalent, key selection considerations include its 14-pin SO package, -40°C to +125°C automotive-grade temperature range, input common-mode range extending to VDD − 1.1V, and guaranteed hysteresis for stable switching with slow-moving signals.
Technical Context
The MAX9024ASD+T implements four independent comparators in a single monolithic IC, each featuring an input stage with no phase reversal under overdrive and an output stage designed to minimize supply-current transients during switching - eliminating power-supply glitches. Its architecture supports rail-to-rail output swing with 2mV low-level output voltage at 10µA sink current.
Designed for ultra-low-power sensing interfaces, it operates across full industrial and automotive temperature ranges (-40°C to +125°C) while maintaining tight input offset voltage (±1mV typical), low input bias current (3nA typical), and high CMRR (70dB min) - enabling reliable signal discrimination in noisy, space-constrained environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.5V to 5.5V single supply - enables direct integration into Li-ion and 3.3V/5V systems without level-shifting. |
| Supply Current per Comparator | 2.8μA typical - allows continuous operation for years on coin-cell batteries in always-on sensor nodes. |
| Propagation Delay | 3μs at VOD = 100mV - supports fast edge detection in digital line receivers and photodiode preamp trigger circuits. |
| Input Hysteresis | 4mV built-in - prevents chatter on slow-rising inputs like thermistor or potentiometer outputs without external components. |
| Input Common-Mode Range | VSS to VDD − 1.1V - accommodates ground-referenced sensors and rail-sensing applications without attenuation. |
| Rail-to-Rail Output Swing | VOL = 2mV at 10µA sink, VOH = VDD − 2mV at 10µA source - ensures full logic-level compatibility with MCU GPIOs and digital buffers. |
| Operating Temperature | -40°C to +125°C - qualified for under-hood automotive, industrial control, and outdoor IoT deployments. |
Pinout & Package
MAX9024ASD+T is housed in a 14-pin Small Outline (SO) package with standard 1.27mm pitch, JEDEC MS-012AC compliant footprint, and RoHS-compliant lead finish indicated by the '+' suffix.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUTD | Comparator D output - rail-to-rail CMOS-compatible signal for driving logic or LED indicators. |
| 2 | IND− | Comparator D inverting input - accepts reference or feedback signal; supports common-mode down to VSS. |
| 3 | IND+ | Comparator D noninverting input - connects to sensor or signal source; immune to phase reversal when overdriven. |
| 4 | VSS | Negative supply / ground reference - must be connected directly to system ground plane for noise immunity. |
| 5 | VDD | Positive supply - requires local 0.1µF ceramic bypass capacitor to VSS for stable high-speed operation. |
| 6 | INA+ | Comparator A noninverting input - primary signal path for threshold comparison in multi-channel detection. |
| 7 | INA− | Comparator A inverting input - typically tied to reference voltage or feedback network for hysteresis control. |
| 8 | OUTA | Comparator A output - independent logic-level output usable for interrupt generation or status flagging. |
| 9 | INC− | Comparator C inverting input - shares VSS/VDD rails; enables synchronized multi-threshold monitoring. |
| 10 | INC+ | Comparator C noninverting input - supports differential or single-ended sensing configurations. |
| 11 | OUTC | Comparator C output - provides third independent decision channel without additional ICs. |
| 12 | INB+ | Comparator B noninverting input - allows parallel processing of separate analog signals (e.g., multiple sensor inputs). |
| 13 | INB− | Comparator B inverting input - configurable as reference node or inverted signal path. |
| 14 | OUTB | Comparator B output - fourth dedicated output for redundant sensing or multi-state state machine control. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 2.8μA per comparator enables >10-year battery life in always-on wake-up circuits. |
| Built-in 4mV hysteresis | Eliminates need for external positive-feedback resistors in threshold detectors and discriminators. |
| No phase reversal on overdrive | Guarantees predictable output polarity even when inputs exceed common-mode limits - critical for safety-critical sensing. |
| Rail-to-rail output stage | Delivers full logic swing to interface directly with 1.8V–5V MCUs, FPGAs, and digital isolators without level shifters. |
| Wide input common-mode range | Operates with inputs as low as VSS and as high as VDD − 1.1V - supports direct connection to unbuffered sensors and DAC outputs. |
Applications
| Battery-Powered Portable Systems | Sensor-Signal Detection |
|---|---|
Use Scenario: Monitoring battery voltage and system supply rails in handheld medical devices and wearables. IC Role / Device Role / Timing Role: Quad comparator performs simultaneous low-battery warning, overvoltage lockout, charge-complete detection, and USB presence sensing. Use Value: Single MAX9024ASD+T replaces four discrete comparators, reducing PCB area by >60% and eliminating four external hysteresis networks. | Use Scenario: Converting analog outputs from temperature, pressure, and gas sensors into clean digital alerts. IC Role / Device Role / Timing Role: Each comparator independently monitors a sensor against fixed or adjustable thresholds with built-in noise immunity. Use Value: 4mV internal hysteresis prevents false triggers from EMI or thermal noise, improving reliability in industrial enclosures. |
| Photodiode Preamps | Threshold Detectors / Discriminators |
Use Scenario: Detecting low-light pulses in optical smoke detectors and pulse oximeters. IC Role / Device Role / Timing Role: Fast 3μs response captures narrow photodiode current spikes; rail-to-rail output drives timing-critical interrupt lines. Use Value: Low 2.8μA supply current minimizes dark-current interference in high-gain transimpedance amplifier stages. | Use Scenario: Implementing multi-level voltage window comparators for power supply sequencing and fault classification. IC Role / Device Role / Timing Role: Four comparators configured as upper/lower bounds and fault/error bands for real-time power integrity monitoring. Use Value: Independent outputs allow parallel decision-making without microcontroller polling - reducing latency in safety shutdown paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM339DR | Higher 2mA supply current per comparator; no built-in hysteresis; open-collector outputs require pull-ups. | Requires external hysteresis resistors and level-shifting for rail-to-rail interfacing; unsuitable for sub-10μA battery systems. | Select LM339DR only when cost is primary concern and power budget exceeds 100μA. |
| TLV3704IPW | Lower 800nA supply current but slower 20μs propagation delay; same 14-pin TSSOP/SO footprint as MAX9024ASD+T. | Better for ultra-low-power sleep-mode monitoring but inadequate for >50kHz signal edge detection. | Choose TLV3704IPW when extended battery life outweighs speed requirements and hysteresis can be added externally. |
Compared with LM339DR and TLV3704IPW, the MAX9024ASD+T uniquely balances micropower operation (2.8μA), speed (3μs), and integrated hysteresis - making it optimal for compact, responsive, and maintenance-free sensing nodes where board space and energy efficiency are co-constrained.
Availability
MAX9024ASD+T is available at Aetrix Electronics and suitable for battery-powered portable systems, sensor-signal detection, and photodiode preamp applications requiring stable component supply across automotive and industrial temperature grades.
Supply support for MAX9024ASD+T 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
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies, serving industrial, automotive, communications, and healthcare markets.
The MAX902x family was designed specifically for ultra-low-power, space-constrained sensing and threshold-detection applications - prioritizing micropower consumption, robust noise immunity, and simplified layout over raw speed or precision.
FAQ
What is the operating supply voltage range for MAX9024ASD+T?
The MAX9024ASD+T operates from a single supply of 2.5V to 5.5V, supporting direct connection to common battery and logic rails. It also functions with dual supplies ranging from ±1.25V to ±2.75V. This wide range allows flexible use in both portable and industrial systems without external regulators or level shifters - a key advantage of the MAX9024ASD+T in mixed-voltage designs.
Does MAX9024ASD+T include internal hysteresis, and how does it affect circuit design?
Yes, the MAX9024ASD+T integrates 4mV of internal hysteresis per comparator, eliminating the need for external positive-feedback resistors in most threshold-detection applications. This simplifies PCB layout, reduces component count, and improves consistency across temperature - especially valuable in battery-powered portable systems where the MAX9024ASD+T is commonly deployed for reliable wake-up and fault signaling.
Can MAX9024ASD+T drive standard logic inputs directly?
Yes, the MAX9024ASD+T features rail-to-rail CMOS-compatible outputs that swing within 2mV of VSS and VDD at light loads (10µA), ensuring full compatibility with 1.8V, 3.3V, and 5V logic families. This eliminates level-shifting circuitry and makes the MAX9024ASD+T ideal for direct interfacing with microcontrollers, FPGAs, and digital isolators in compact sensor modules.
What is the maximum capacitive load the MAX9024ASD+T output can drive without oscillation?
The MAX9024ASD+T is characterized to drive up to 150pF without sustained oscillations, as verified in the datasheet's Absolute Maximum Ratings and Typical Operating Characteristics. For loads exceeding this value - such as long PCB traces or multiple gate inputs - a series resistor near the output is recommended to maintain stability while preserving the 3μs propagation delay performance of the MAX9024ASD+T.
Is MAX9024ASD+T suitable for automotive applications?
Yes, the MAX9024ASD+T is specified for operation from -40°C to +125°C and qualified for automotive-grade reliability, including AEC-Q100 stress testing per Analog Devices' product definition. Its low 2.8μA supply current, built-in hysteresis, and no-phase-reversal behavior make it well-suited for under-hood sensor interfaces, body electronics, and battery management subsystems where the MAX9024ASD+T delivers consistent performance across extreme thermal cycles.
MAX9024ASD+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 4
- Output Type:
- CMOS, Rail-to-Rail, TTL
- Voltage - Supply, Single/Dual (±):
- 2.5V ~ 5.5V, ±1.25V ~ 2.75V
- :
- 1mV @ 5V
- Voltage - Input Offset (Max):
- 0.003µA @ 5V
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 5µA
- Current - Quiescent (Max):
- 100dB CMRR, 80dB PSRR
- CMRR, PSRR (Typ):
- 8µs
- Propagation Delay (Max):
- 4mV
- Hysteresis:
- -40°C ~ 125°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 14-SOIC
MAX9024ASD+T FAQ
1.How can I place an order for MAX9024ASD+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX9024ASD+T 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 MAX9024ASD+T reliable?
The price and inventory of MAX9024ASD+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX9024ASD+T is usually 5 days.
3.What payment methods are accepted for MAX9024ASD+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX9024ASD+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX9024ASD+T?
MAX9024ASD+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX9024ASD+T 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 MAX9024ASD+T?
For technical support, including MAX9024ASD+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX9024ASD+T requirements.
6.How does Aetrix verify that MAX9024ASD+T is sourced from the original manufacturer or authorized distributors?
All MAX9024ASD+T 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 MAX9024ASD+T meets industry standards.
7.What is the process for return or replacement of MAX9024ASD+T?
All MAX9024ASD+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX9024ASD+T, 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 MAX9024ASD+T part is unused and in its original packaging.
Return procedure for MAX9024ASD+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX9024ASD+T Tags
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