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Analog Devices Inc./Maxim Integrated MAX40008AUT+T
- Part No.:
- MAX40008AUT+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- SOT-23-6
- Datasheet:
-
MAX40008AUT+T.pdf
- Description:
- IC COMPARATOR 1 GEN PUR SOT6
- Quantity:
- Payment:
- Shipping:
Inventory:2,210
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Product details
Overview
The MAX40008AUT+T from Analog Devices is a single micro-power comparator with open-drain output, rail-to-rail inputs, 220ns propagation delay (L→H, 100mV overdrive), 12μA supply current at +25°C, and shutdown capability-designed for low-voltage battery-powered threshold detection in portable systems.
For engineers reviewing the MAX40008AUT+T datasheet, MAX40008AUT+T pinout, MAX40008AUT+T application, or MAX40008AUT+T equivalent, key selection criteria include its 1.7V–5.5V supply range, -40°C to +125°C automotive qualification, 6-pin SOT23 package, open-drain output rated to 6V above GND, and integrated 3mV hysteresis for noise-immune switching.
Technical Context
The MAX40008AUT+T implements a precision comparator core with rail-to-rail input stage operating down to 1.7V, internal 3mV hysteresis to suppress oscillation on slow signals, and an open-drain output stage capable of sinking 8mA while tolerating pullup voltages up to 6V above GND-enabling level translation across incompatible voltage domains.
Its shutdown input (active-low) reduces quiescent current to ≤1μA over temperature, and the design eliminates supply-current surges during switching via proprietary output driver architecture-preventing supply glitches common in comparators with conventional output stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.7V to 5.5V - supports direct operation from 1.8V, 2.5V, 3V, and 5V rails without regulation. |
| Supply Current (Typ) | 12μA at +25°C - enables multi-year battery life in always-on sensing nodes. |
| Propagation Delay (L→H) | 220ns at 100mV overdrive - delivers fast response for timing-critical window detection. |
| Input Offset Voltage (Max) | ±5mV over -40°C to +125°C - ensures stable trip-point accuracy across automotive temperature range. |
| Hysteresis | 3mV typical - prevents chatter on noisy or slowly varying inputs without external components. |
| Output Type | Open-drain - allows flexible pullup to any voltage ≤6V, enabling bidirectional logic-level translation. |
| Shutdown Current | ≤1μA over temperature - maintains ultra-low power in sleep modes for energy-constrained systems. |
Pinout & Package
The MAX40008AUT+T is housed in a standard 6-pin SOT23 package (package code U6+1, outline 21-0058), with 0.95mm pitch and 2.9mm × 1.6mm footprint-compatible with automated assembly and legacy PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN− | Inverting input - accepts rail-to-rail common-mode signals from −0.2V to VDD + 0.2V. |
| 2 | GND | Signal and power return - must be connected to system ground plane for noise immunity. |
| 3 | OUT | Open-drain output - requires external pullup; sinks up to 8mA; withstands 6V absolute max above GND. |
| 4 | IN+ | Non-inverting input - matches IN− in rail-to-rail range and input bias current (20nA typ). |
| 5 | VDD | Positive supply - bypass with 0.1μF capacitor near pin to suppress supply transients. |
| 6 | SHDN | Active-low shutdown control - drives device into <1μA quiescent state when pulled low. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input stage | Operates with input voltages from −0.2V to VDD + 0.2V - eliminates need for level-shifting front-end in mixed-supply systems. |
| Integrated 3mV hysteresis | Prevents false triggering on EMI or slow edges - removes requirement for external hysteresis resistors in most threshold applications. |
| 6V-tolerant open-drain output | Enables direct 1.8V/3.3V/5V logic-level translation without external MOSFETs or translators. |
| No phase reversal on overdrive | Maintains correct output polarity even when inputs exceed common-mode range - improves reliability in fault conditions. |
| RF immunity filters | On-chip filtering rejects high-frequency interference - reduces need for external ferrites or RC snubbers in noisy environments. |
Applications
| Battery-Powered Threshold Detection | Logic-Level Translation |
|---|---|
Use Scenario: Monitoring battery voltage in wearables to trigger low-battery warning before shutdown. IC Role / Device Role / Timing Role: Comparator detecting crossing of 3.0V threshold on IN+ against fixed reference on IN−. Use Value: 12μA quiescent current extends runtime; open-drain output interfaces directly to 1.8V microcontroller GPIO. | Use Scenario: Converting 3.3V I²C signals to 1.8V domain in multi-voltage SoC subsystems. IC Role / Device Role / Timing Role: Level translator using MAX40008AUT+T's open-drain output pulled to 1.8V while powered from 3.3V. Use Value: Eliminates discrete MOSFET solution; 220ns delay preserves I²C timing margins at 400kHz. |
| Automotive Window Comparator | IR Receiver Signal Conditioning |
Use Scenario: Validating sensor output stays within safe operating band (e.g., 1.2V–2.8V) in ADAS camera module. IC Role / Device Role / Timing Role: Dual-threshold detection using two MAX40008AUT+T units - one for upper, one for lower bound. Use Value: −40°C to +125°C rating ensures operation under hood; 3mV hysteresis rejects EMI-induced false trips. | Use Scenario: Cleaning noisy IR photodiode output before feeding to microcontroller ADC or timer capture. IC Role / Device Role / Timing Role: High-speed comparator converting analog IR envelope into clean digital pulse train. Use Value: 220ns propagation delay preserves pulse width fidelity; rail-to-rail inputs accommodate wide-swing photodiode signals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV7011DBVR | Push-pull output; no 6V-tolerant output; 360ns propagation delay; 650nA supply current. | Lacks open-drain flexibility for level translation; better suited for driving CMOS loads directly. | Select TLV7011DBVR only if push-pull output and ultra-low power (<1μA) dominate requirements over voltage translation. |
| MAX9021AXK+T | Open-drain output; 1.8V–5.5V supply; 300ns propagation delay; 1.5μA supply current; no shutdown. | Missing shutdown function and automotive temperature grade; smaller hysteresis (1.5mV). | Choose MAX9021AXK+T only for cost-sensitive industrial designs where shutdown and extended temp range are not required. |
Compared with TLV7011DBVR and MAX9021AXK+T, the MAX40008AUT+T uniquely combines 6V-tolerant open-drain output, 220ns speed, shutdown, and full automotive temperature support-making it the only option qualified for robust level translation in harsh-environment battery systems.
Availability
MAX40008AUT+T is available at Aetrix Electronics and suitable for battery-powered instrumentation, automotive sensor interfaces, and portable logic-level translation requiring stable component supply across extended temperature and long product lifecycles.
Supply support for MAX40008AUT+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 semiconductors, serving industrial, automotive, communications, and healthcare markets.
The MAX40008/MAX40009 family was designed specifically for ultra-low-power, high-accuracy threshold detection and level translation in space- and energy-constrained systems operating across automotive temperature ranges.
FAQ
What is the maximum allowable voltage on the MAX40008AUT+T OUT pin?
The MAX40008AUT+T OUT pin is rated for voltages up to 6V above GND, independent of VDD. This allows safe interfacing with higher-voltage logic domains (e.g., pulling up to 5V while VDD = 1.8V). Exceeding 6V absolute maximum may cause permanent damage, per the Absolute Maximum Ratings table.
Does the MAX40008AUT+T require external hysteresis for reliable operation?
No-the MAX40008AUT+T integrates 3mV of internal hysteresis, which is sufficient to prevent oscillation on slow-moving or noisy inputs in most applications. External hysteresis is only needed when tighter or adjustable hysteresis bands (e.g., >5mV) are required for specific noise immunity targets.
Can the MAX40008AUT+T operate from a 1.7V supply while maintaining full specification?
Yes-the MAX40008AUT+T is fully specified from 1.7V to 5.5V. At 1.7V, it delivers rail-to-rail input operation, 17μA max supply current over temperature, and retains 3mV hysteresis and shutdown functionality-enabling use in emerging ultra-low-voltage IoT sensors.
How does the shutdown feature affect propagation delay in the MAX40008AUT+T?
When SHDN is asserted low, the MAX40008AUT+T enters a low-power state with <1μA supply current and disables the comparator core-so propagation delay becomes undefined. Propagation delay (220ns) applies only during active operation (SHDN = high). Power-up time from shutdown is 50μs, after which full performance resumes.
Is the MAX40008AUT+T pin-compatible with other comparators in the same SOT23-6 footprint?
No-while the MAX40008AUT+T uses the standard 6-pin SOT23 package, its pinout (IN−, GND, OUT, IN+, VDD, SHDN) differs from common comparator pinouts like LMV331 or TLV331. Direct replacement requires PCB layout modification; verify pin mapping before substitution.
MAX40008AUT+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- SOT-23-6
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 1
- Output Type:
- Open-Drain
- Voltage - Supply, Single/Dual (±):
- 1.7V ~ 5.5V
- :
- 5mV
- Voltage - Input Offset (Max):
- 0.14µA
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 17µA
- Current - Quiescent (Max):
- 70dB CMRR, 60dB PSRR
- CMRR, PSRR (Typ):
- 850ns (Typ)
- Propagation Delay (Max):
- 3mV
- Hysteresis:
- -40°C ~ 125°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- SOT-6
MAX40008AUT+T FAQ
1.How can I place an order for MAX40008AUT+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX40008AUT+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 MAX40008AUT+T reliable?
The price and inventory of MAX40008AUT+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX40008AUT+T is usually 5 days.
3.What payment methods are accepted for MAX40008AUT+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX40008AUT+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX40008AUT+T?
MAX40008AUT+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX40008AUT+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 MAX40008AUT+T?
For technical support, including MAX40008AUT+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX40008AUT+T requirements.
6.How does Aetrix verify that MAX40008AUT+T is sourced from the original manufacturer or authorized distributors?
All MAX40008AUT+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 MAX40008AUT+T meets industry standards.
7.What is the process for return or replacement of MAX40008AUT+T?
All MAX40008AUT+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX40008AUT+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 MAX40008AUT+T part is unused and in its original packaging.
Return procedure for MAX40008AUT+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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