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Analog Devices Inc./Maxim Integrated MAX40014AUK09+T
- Part No.:
- MAX40014AUK09+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX40014AUK09+T.pdf
- Description:
- 600NA COMPARATOR
- Quantity:
- Payment:
- Shipping:
Inventory:2,811
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Product details
Overview
MAX40014AUK09+T from Analog Devices is a nanoPower, noninverting-input, push-pull-output comparator with factory-trimmed 0.9V internal reference voltage, operating from 1.7V to 5.5V supply and consuming only 500nA typical supply current. It features 8mV typical internal hysteresis, 0.1V to 5.5V input voltage range independent of supply, and is qualified for automotive temperature range (−40°C to +125°C). It is used in battery-critical signal threshold detection in portable medical sensors.
For engineers reviewing the MAX40014AUK09+T datasheet, MAX40014AUK09+T pinout, MAX40014AUK09+T application, or MAX40014AUK09+T equivalent, key selection criteria include ultra-low quiescent current, internal 0.9V reference accuracy over temperature, push-pull output eliminating external pull-up, WLP/SOT23 package choice, and guaranteed operation at 1.7V supply in space-constrained embedded systems.
Technical Context
The MAX40014AUK09+T implements a BiCMOS input stage enabling rail-to-rail input voltage operation up to 5.5V even when VCC = 0V, maintaining high input impedance during power-down. Its internal 0.9V reference is temperature-compensated and integrated into the comparator's trip-point generation, eliminating external reference components.
This device uses a push-pull output stage capable of sourcing 1mA and sinking 2mA, delivering VOH ≥ VCC − 0.4V and VOL ≤ 0.4V across −40°C to +125°C. Propagation delay is 9µs (high-to-low) and 25µs (low-to-high) at 100mV overdrive, with 8mV internal hysteresis ensuring noise immunity without external feedback.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.7V to 5.5V - supports direct interface with 1.8V/2.5V/3.3V/5V logic rails and single-supply battery systems. |
| Supply Current (Typ) | 500nA - enables multi-year operation on coin-cell batteries in always-on monitoring applications. |
| Internal Reference Voltage | 0.9V ±18mV (−40°C to +125°C) - factory-trimmed, eliminates need for external precision reference and saves PCB area. |
| Input Voltage Range | 0.1V to 5.5V, independent of supply - allows sensing signals beyond VCC (e.g., 3.3V input on 1.8V-powered device). |
| Propagation Delay | 9µs (high-to-low), 25µs (low-to-high) at 100mV overdrive - ensures timely response in low-power wake-up and fault-detection circuits. |
| Output Type | Push-pull - drives logic inputs directly without external pull-up resistor, reducing BOM count and layout complexity. |
| Hysteresis | 8mV typical - suppresses false triggering from EMI or slow-moving analog signals without requiring external components. |
Pinout & Package
MAX40014AUK09+T is available in a 5-pin SOT23 package (package code U5+1), footprint compatible with industry-standard SOT-23-5 layouts. The device has no exposed thermal pad; θJA = 255.9°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VCC/REF | Supply voltage input / internal reference node | Accepts 1.7V–5.5V supply; bypass with 0.1µF capacitor to GND; also serves as reference source for internal 0.9V comparator threshold. |
| 2 - GND | Ground reference | Primary return path for supply current and output load; must be connected to system ground plane with low-inductance trace. |
| 3 - N.C. | No connect | Not internally bonded; left unconnected on PCB; no electrical function or thermal role. |
| 4 - IN | Noninverting input | Compares applied signal against internal 0.9V reference; asserts high output when VIN > 0.9V; supports 0.1V–5.5V common-mode range. |
| 5 - OUT | Push-pull output | Sources up to 1mA / sinks up to 2mA; outputs logic-high near VCC and logic-low near GND; interfaces directly with CMOS/TTL inputs. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low supply current | 500nA typical enables decade-scale battery life in always-on sensor monitors and wearable health devices. |
| Factory-trimmed 0.9V reference | ±18mV max error over −40°C to +125°C eliminates external reference IC and associated calibration overhead. |
| Rail-to-rail input with zero-VCC operation | Inputs remain high-impedance and functional even when VCC = 0V - supports flexible power-gating schemes in multi-rail systems. |
| Integrated 8mV hysteresis | Prevents oscillation on noisy inputs without external resistors - critical for reliable battery-voltage monitoring and fault detection. |
| Push-pull output stage | Drives high/low logic levels directly - removes need for pull-up resistor, saving board space and simplifying I/O interfacing with microcontrollers. |
Applications
| Battery Voltage Monitor | Wearable Sensor Threshold Detector |
|---|---|
|
Use Scenario: Monitoring Li-ion cell voltage during charging/discharging to trigger low-battery alerts or cutoff. IC Role / Device Role / Timing Role: Comparator compares cell voltage against internal 0.9V reference scaled via resistor divider; push-pull output drives MCU interrupt pin. Use Value: Eliminates external reference and pull-up, reduces component count by 2–3 parts, and extends runtime via 500nA quiescent current. |
Use Scenario: Detecting motion-triggered physiological signal thresholds (e.g., ECG R-wave peak) in compact hearables. IC Role / Device Role / Timing Role: Noninverting comparator with 0.9V reference detects signal crossing; 9µs propagation delay ensures sub-millisecond response. Use Value: Enables real-time event capture with minimal latency and zero standby power penalty - critical for FDA-cleared diagnostic wearables. |
| Portable Medical Glucose Meter | IoT Edge Node Low-Power Wake-Up |
|
Use Scenario: Converting analog glucose sensor output into digital flag when concentration exceeds clinical threshold (e.g., 180mg/dL). IC Role / Device Role / Timing Role: Uses internal 0.9V reference with precision resistor network to set exact trip point; operates from 3.3V coin-cell supply. Use Value: Factory-trimmed reference ensures <±2% trip accuracy over temperature, meeting ISO 15197:2013 clinical accuracy requirements. |
Use Scenario: Monitoring environmental sensor output (e.g., CO₂, humidity) and waking MCU only upon threshold breach. IC Role / Device Role / Timing Role: Always-on comparator asserts interrupt on OUT pin; MCU remains in deep-sleep until triggered. Use Value: Reduces average system current from µA to nA range - extends 2xAA battery life from months to >5 years in remote deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX40014ANS09+T | Same electrical specs and 0.9V reference, but in 4-bump WLP (0.73mm × 0.73mm) instead of SOT23. | Used where board area is more constrained than assembly capability; requires WLP-compatible reflow and inspection. | Select MAX40014ANS09+T for ultra-miniature designs (e.g., ingestible sensors); choose MAX40014AUK09+T for standard SMT lines and easier prototyping. |
| TLV3691IDBVR | 0.9V reference not available; offers 1.2V/1.8V options only; 350nA supply current; SOT23-5 package. | Requires external resistor divider to achieve 0.9V trip point, increasing component count and temperature drift. | Choose TLV3691IDBVR only if 0.9V reference is not required and lowest possible IQ (<400nA) is primary goal; MAX40014AUK09+T provides superior integration. |
Compared with MAX40014ANS09+T, the MAX40014AUK09+T trades 30% larger footprint for broader assembly compatibility and higher thermal dissipation (θJA = 255.9°C/W vs. 104.4°C/W). Versus TLV3691IDBVR, it delivers exact 0.9V threshold without external components-reducing design risk and calibration effort in medical and industrial applications.
Availability
MAX40014AUK09+T is available at Aetrix Electronics and suitable for portable medical devices, battery-powered instrumentation, and automotive cabin-sensor modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX40014AUK09+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 with precision signal chain solutions.
The MAX40000-series comparators were designed specifically for ultra-low-power, space-constrained portable electronics - emphasizing nanoPower operation, integrated references, and miniature packaging for next-generation wearables and implantables.
FAQ
What is the internal reference voltage tolerance of MAX40014AUK09+T over temperature?
The MAX40014AUK09+T features a factory-trimmed 0.9V internal reference with ±18mV (±2%) maximum deviation over the full −40°C to +125°C automotive temperature range, as specified in the Electrical Characteristics table on page 3 of the datasheet. This tight tolerance eliminates need for external trimming or calibration in most portable medical and sensor applications.
Does MAX40014AUK09+T require an external pull-up resistor on its output?
No, MAX40014AUK09+T does not require an external pull-up resistor because it features a push-pull output stage. The output actively drives high (near VCC) and low (near GND), enabling direct connection to CMOS/TTL inputs without additional components - unlike open-drain comparators such as MAX40012AUK09+T.
Can MAX40014AUK09+T operate with input voltages exceeding its supply voltage?
Yes, MAX40014AUK09+T supports input voltages from 0.1V to 5.5V independent of VCC, meaning inputs can exceed VCC (e.g., 3.3V signal on 1.8V supply) up to the Absolute Maximum Rating of +6V. This is enabled by its innovative BiCMOS input stage with no ESD diode clamp to VCC.
What is the propagation delay of MAX40014AUK09+T at 20mV overdrive?
At 20mV input overdrive, the MAX40014AUK09+T exhibits 50µs low-to-high and 45µs high-to-low propagation delay, as measured under VCC = 3.3V, CL = 20pF, and TA = −40°C to +125°C conditions. These values are documented in the Electrical Characteristics table (page 2) and Typical Operating Characteristics (Figure toc07).
Is MAX40014AUK09+T pin-compatible with other devices in the MAX40012–MAX40015 family?
Yes, MAX40014AUK09+T shares identical 5-pin SOT23 pinout (VCC/REF, GND, N.C., IN, OUT) with all MAX40012–MAX40015 AUK variants, including MAX40012AUK09+T and MAX40015AUK09+T. This allows drop-in replacement within the same package footprint when changing reference voltage or input polarity - provided output type (push-pull) matches system requirements.
MAX40014AUK09+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- SC-74A, SOT-753
- Series:
- nanoPower
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 1
- Output Type:
- Push-Pull
- Voltage - Supply, Single/Dual (±):
- 1.7V ~ 5.5V
- :
- 32mV @ 3.3V
- Voltage - Input Offset (Max):
- 0.09µA @ 3.3V
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 1.3µA
- Current - Quiescent (Max):
- 45dB PSRR (Min)
- CMRR, PSRR (Typ):
- 45µs (Typ)
- Propagation Delay (Max):
- 8mV
- Hysteresis:
- -40°C ~ 125°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- SOT-23-5
MAX40014AUK09+T FAQ
1.How can I place an order for MAX40014AUK09+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX40014AUK09+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 MAX40014AUK09+T reliable?
The price and inventory of MAX40014AUK09+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX40014AUK09+T is usually 5 days.
3.What payment methods are accepted for MAX40014AUK09+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX40014AUK09+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX40014AUK09+T?
MAX40014AUK09+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX40014AUK09+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 MAX40014AUK09+T?
For technical support, including MAX40014AUK09+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX40014AUK09+T requirements.
6.How does Aetrix verify that MAX40014AUK09+T is sourced from the original manufacturer or authorized distributors?
All MAX40014AUK09+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 MAX40014AUK09+T meets industry standards.
7.What is the process for return or replacement of MAX40014AUK09+T?
All MAX40014AUK09+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX40014AUK09+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 MAX40014AUK09+T part is unused and in its original packaging.
Return procedure for MAX40014AUK09+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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