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Analog Devices Inc./Maxim Integrated MAX9024ASD
- Part No.:
- MAX9024ASD
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX9024ASD.pdf
- Description:
- IC COMPARATOR 4 GEN PUR 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,085
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Product details
Overview
MAX9024ASD from Analog Devices is a quad micropower comparator optimized for single-supply operation from 2.5V to 5.5V, delivering 3μs propagation delay and only 2.8μA supply current per comparator 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 - making it ideal for battery-powered portable systems and sensor-signal detection in space-constrained designs.
For engineers reviewing the MAX9024ASD datasheet, MAX9024ASD pinout, MAX9024ASD application, or MAX9024ASD equivalent, key selection criteria include ultra-low quiescent current, guaranteed hysteresis for noise immunity, wide single-supply voltage range, rail-to-rail output capability, and SO-14 package compatibility with industrial temperature-grade reliability.
Technical Context
The MAX9024ASD integrates four independent comparators sharing a common VDD and VSS, each with matched input offset (±1mV typical), ±2nA input offset current, and 70dB CMRR over its full common-mode range (VSS to VDD – 1.1V). Its output stage minimizes switching current transients to suppress power-supply glitches during transitions.
Designed for low-noise threshold detection, it uses internal 4mV hysteresis to prevent oscillation on slow-moving inputs without external feedback. Propagation delay remains stable at 3μs (typ) under 100mV overdrive and 15pF load, with rise/fall times of 20ns and maximum capacitive load tolerance up to 150pF.
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 logic systems without level-shifting. |
| Supply Current per Comparator | 2.8μA typical - supports multi-year battery life in always-on sensor monitoring applications. |
| Propagation Delay | 3μs typical at 100mV overdrive - balances speed and power for medium-speed threshold detection. |
| Hysteresis | 4mV built-in - eliminates need for external hysteresis resistors in noisy environments. |
| Input Common-Mode Range | VSS to (VDD – 1.1V) - accommodates ground-referenced sensors and rail-to-rail input signals. |
| Output Swing | Rail-to-rail - ensures full logic-level compatibility with CMOS and TTL interfaces. |
| Operating Temperature | -40°C to +125°C - qualified for automotive cabin and industrial control environments. |
Pinout & Package
MAX9024ASD is housed in a 14-pin SO (Small Outline) package with standard 1.27mm pitch, RoHS-compliant, and rated for surface-mount reflow assembly. Pin assignments are fully defined in the manufacturer's pin configuration diagram.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUTD | Comparator D output - open-drain capable, rail-to-rail swing, compatible with pull-up to VDD or other logic rails. |
| 2 | IND- | Comparator D inverting input - high-impedance node (±2nA offset current) for precision threshold comparison. |
| 3 | IND+ | Comparator D noninverting input - matches IND- in bias current and offset for differential sensing. |
| 4 | VSS | Negative supply terminal - must be connected to system ground or negative rail; serves all four comparators. |
| 5 | VDD | Positive supply terminal - bypass with 0.1μF capacitor to VSS for stable operation under dynamic load. |
| 6 | INA+ | Comparator A noninverting input - electrically identical to other + inputs; supports reference or signal routing. |
| 7 | INA- | Comparator A inverting input - paired with INA+; common-mode range extends to VSS. |
| 8 | OUTA | Comparator A output - independently driven, no internal coupling to other outputs. |
| 9 | INC- | Comparator C inverting input - shares same electrical specs as INA-/INB-/IND-. |
| 10 | INC+ | Comparator C noninverting input - matched to INC- for consistent hysteresis behavior. |
| 11 | OUTC | Comparator C output - rail-to-rail, low-glitch design reduces supply noise coupling. |
| 12 | INB- | Comparator B inverting input - supports simultaneous multi-threshold detection across four channels. |
| 13 | INB+ | Comparator B noninverting input - identical performance to other + inputs; no phase reversal on overdrive. |
| 14 | OUTB | Comparator B output - fully isolated output stage; sink/source capability up to 4mA. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low supply current | 2.8μA per comparator - enables continuous operation in energy-harvesting and coin-cell-powered devices. |
| Built-in 4mV hysteresis | Eliminates external feedback components and prevents chatter on noisy or slowly varying inputs. |
| Rail-to-rail output swing | Ensures full logic-high/low levels across entire supply range, simplifying interface with downstream digital ICs. |
| No phase reversal on overdriven inputs | Maintains correct output polarity even when inputs exceed common-mode limits - critical for fault-tolerant sensing. |
| Wide common-mode input range | VSS to VDD – 1.1V - supports direct connection of ground-referenced photodiodes or resistive sensors. |
Applications
| Battery-Powered Portable Systems | Sensor-Signal Detection |
|---|---|
|
Use Scenario: Monitoring battery voltage thresholds in handheld medical devices to trigger low-battery alerts and shutdown sequences. IC Role / Device Role / Timing Role: Quad comparator providing independent high/low/fully-charged/overvoltage detection using internal hysteresis and rail-to-rail outputs. Use Value: Enables precise, glitch-free state transitions without external hysteresis components or supply regulation overhead. |
Use Scenario: Detecting motion-triggered analog signals from PIR sensors in smart home occupancy modules. IC Role / Device Role / Timing Role: Four-channel threshold detector comparing sensor output against adjustable references to reject ambient noise. Use Value: 4mV internal hysteresis and 2.8μA/quiescent current allow reliable wake-up detection while preserving multi-month standby life. |
| Photodiode Preamps | Threshold Detectors / Discriminators |
|
Use Scenario: Converting weak current pulses from ambient light sensors into clean digital logic edges for microcontroller input. IC Role / Device Role / Timing Role: High-impedance comparator input stage with rail-to-rail output directly driving GPIO pins. Use Value: Input bias current as low as ±2nA preserves signal integrity from high-impedance photodiode sources. |
Use Scenario: Implementing multi-level voltage discrimination in industrial process controllers for analog sensor fault detection. IC Role / Device Role / Timing Role: Simultaneous evaluation of four distinct voltage bands using shared VDD/VSS and independent output lines. Use Value: SO-14 footprint consolidates four comparators in one package, reducing PCB area vs. discrete solutions. |
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 supply current (500μA/comparator), no built-in hysteresis, wider supply range (2V–36V), open-collector outputs only. | Requires external pull-ups and hysteresis resistors; suited for high-voltage industrial systems, not ultra-low-power portable use. | Select LM339DR only when higher drive strength or extended voltage range outweighs power and board-space penalties. |
| TLV3704IPW | Lower supply current (1.8μA/comparator), rail-to-rail I/O, but only 1.8V–16V supply range and no guaranteed hysteresis. | Lacks factory-trimmed hysteresis - requires external feedback network for noise immunity in sensitive applications. | Choose TLV3704IPW where sub-2μA current is mandatory and hysteresis can be added externally without layout penalty. |
Compared with LM339DR and TLV3704IPW, MAX9024ASD uniquely combines ultra-low 2.8μA current, factory-integrated 4mV hysteresis, rail-to-rail output, and automotive-grade temperature support in a single SO-14 package - eliminating design compromises between power, noise immunity, and interface simplicity.
Availability
MAX9024ASD is available at Aetrix Electronics and suitable for battery-powered portable systems, sensor-signal detection, and threshold discriminators requiring stable component supply across automotive and industrial temperature ranges.
Supply support for MAX9024ASD 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 MAX9021/MAX9022/MAX9024 family was designed specifically for ultra-low-power, space-constrained threshold detection - targeting portable instrumentation, wearables, and always-on environmental monitoring systems.
FAQ
What is the operating temperature range for MAX9024ASD?
The MAX9024ASD is specified for operation from -40°C to +125°C, meeting automotive-grade thermal requirements. This range is fully guaranteed across all key parameters including supply current, propagation delay, and input offset voltage - enabling deployment in engine compartments, industrial control cabinets, and outdoor sensor nodes without derating.
Does MAX9024ASD require external hysteresis components?
No, MAX9024ASD includes 4mV of factory-trimmed internal hysteresis, eliminating the need for external resistors or feedback networks. This built-in feature ensures consistent noise immunity across all four comparators and simplifies PCB layout - especially valuable in compact, high-density designs where routing parasitics could degrade external hysteresis accuracy.
Can MAX9024ASD operate from a 2.5V single supply?
Yes, MAX9024ASD is fully functional at 2.5V single supply, with all specifications - including 3μs propagation delay, rail-to-rail output swing, and 2.8μA supply current - guaranteed down to this minimum voltage. This makes MAX9024ASD compatible with modern low-voltage microcontrollers and energy-harvesting power sources.
What is the input common-mode voltage range of MAX9024ASD?
The input common-mode voltage range of MAX9024ASD extends from VSS to (VDD – 1.1V), allowing direct interfacing with ground-referenced sensors such as photodiodes, thermistors, and bridge transducers. At 3.3V supply, inputs remain valid up to 2.2V - supporting wide-swing analog front-ends without level-shifting circuitry.
Is MAX9024ASD pin-compatible with other packages in the MAX902x family?
No, MAX9024ASD uses a 14-pin SO package, while the quad variant MAX9024AUD+T uses a 14-pin TSSOP. Though both share identical pin functions and electrical behavior, their footprints differ - SO has wider lead spacing (1.27mm) and longer leads than TSSOP (0.65mm pitch). PCB layout must match the specific package variant selected.
MAX9024ASD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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 FAQ
1.How can I place an order for MAX9024ASD through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX9024ASD 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 reliable?
The price and inventory of MAX9024ASD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX9024ASD is usually 5 days.
3.What payment methods are accepted for MAX9024ASD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX9024ASD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX9024ASD?
MAX9024ASD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX9024ASD 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?
For technical support, including MAX9024ASD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX9024ASD requirements.
6.How does Aetrix verify that MAX9024ASD is sourced from the original manufacturer or authorized distributors?
All MAX9024ASD 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 meets industry standards.
7.What is the process for return or replacement of MAX9024ASD?
All MAX9024ASD units undergo pre-shipment inspection (PSI). If there is an issue with MAX9024ASD, 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 part is unused and in its original packaging.
Return procedure for MAX9024ASD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX9024ASD Tags
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LM2903DR
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LM339DR
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LM339PWR
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LM393DT
STMicroelectronics
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LM2901PWR
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LM2903DT
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LM393DR
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LM239DR
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LM339APWR
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LM2903P
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LM393ADR
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NCX2200GMAZ
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