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Analog Devices Inc./Maxim Integrated MAX40002ANS+T
- Part No.:
- MAX40002ANS+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 4-XFBGA, WLBGA
- Datasheet:
-
MAX40002ANS+T.pdf
- Description:
- IC COMPARATOR 1 W/VOLT REF 4WLP
- Quantity:
- Payment:
- Shipping:
Inventory:4,876
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Product details
Overview
MAX40002ANS+T from Analog Devices is a nanoPower, noninverting-input, open-drain comparator in a 0.73mm × 0.73mm 4-bump wafer-level package (WLP), operating from 1.7V to 5.5V supply, consuming only 500nA typical supply current, with 0.1V–5.5V input voltage range and internal hysteresis of 8mV - ideal for battery-critical voltage monitoring in ultra-compact portable electronics.
For engineers reviewing the MAX40002ANS+T datasheet, MAX40002ANS+T pinout, MAX40002ANS+T application, or MAX40002ANS+T equivalent, this page delivers verified electrical behavior, WLP package layout, automotive-grade (-40°C to +125°C) operation, and precise selection guidance between internal/external reference variants and output topologies.
Technical Context
The MAX40002ANS+T implements a BiCMOS-based comparator core with noninverting input architecture and open-drain output stage, enabling flexible logic-level interfacing via external pullup. Its input stage supports rail-to-rail input voltage (0.1V to VCC + 0.1V) independent of supply, and maintains high impedance even when VCC = 0V - critical for power-gated subsystems.
It features factory-trimmed internal hysteresis (8mV typ), RF-immune on-chip filtering, and operates without internal voltage reference (VREF = external), distinguishing it from MAX40002ANS02+T/05+T/12+T variants. Propagation delay is 9µs (high-to-low) and 25µs (low-to-high, 100mV overdrive, RPU = 100kΩ).
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, and 5V digital rails without level-shifting. |
| Supply Current (ICC) | 0.5µA typ at TA = –40°C to +85°C - enables multi-year battery life in always-on sensing nodes. |
| Input Voltage Range | 0.1V to 5.5V - allows detection of sub-1V thresholds (e.g., Li-ion cell under-voltage) even at low VCC. |
| Propagation Delay | 9µs (high-to-low), 25µs (low-to-high, 100mV overdrive) - sufficient for slow-varying battery/temperature monitoring, not high-speed signal comparison. |
| Input Hysteresis | 8mV typ - suppresses noise-induced chatter on slowly ramping inputs like thermistor or battery voltage. |
| Operating Temperature | –40°C to +125°C - qualified for automotive cabin, industrial edge, and extended-life portable medical devices. |
| Output Type | Open-drain - requires external pullup; enables wired-OR logic, mixed-voltage domain interfacing (e.g., 1.8V comparator driving 3.3V MCU GPIO). |
Pinout & Package
MAX40002ANS+T uses a 4-bump wafer-level package (WLP), footprint 0.73mm × 0.73mm, pitch 0.35mm, RoHS-compliant, with no exposed thermal pad. Bump configuration follows JEDEC-standard WLP layout for automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | OUT | Open-drain output - must be pulled up externally (to any voltage ≤5.5V); sinks current only; compatible with I²C-style bus structures. |
| A2 | IN | Noninverting input - asserts OUT high when IN > VREF (external); supports input voltages beyond VCC (up to +6V absolute max). |
| B1 | VCC/REF | Supply input and external reference node - powers device and serves as comparator reference source; bypass with 0.1µF capacitor to GND. |
| B2 | GND | Analog ground reference - shared return for supply, input, and output; must be low-impedance for stable threshold accuracy. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small WLP footprint | 0.73mm × 0.73mm - occupies less board area than two 0402 passives; enables placement directly adjacent to sensors or batteries. |
| NanoPower operation | 500nA typical ICC - reduces quiescent current by >10× vs. standard comparators, extending coin-cell lifetime to >10 years in wake-up monitoring. |
| Rail-to-rail input capability | 0.1V to 5.5V input range - detects near-ground signals (e.g., shunt voltage) and high-side signals without attenuation or clamping diodes. |
| Zero-power input bias | 20–30nA input leakage at VCC = 0V - permits safe "hot insertion" into powered systems and enables true zero-power monitoring during sleep modes. |
| RF noise immunity | On-chip filtering - eliminates need for external RC filters on IN/VCC lines in noisy environments (e.g., Bluetooth/Wi-Fi co-location). |
Applications
| Battery Voltage Monitor | Low-Power Wake-Up Detector |
|---|---|
|
Use Scenario: Monitoring Li-ion cell voltage during deep-sleep mode to trigger wake-up before cutoff (e.g., 2.8V threshold). IC Role / Device Role / Timing Role: Noninverting comparator compares cell voltage against external 2.8V reference; open-drain output pulls MCU interrupt line low upon undervoltage event. Use Value: 500nA supply current ensures <1% annual battery drain; 0.1V input range captures full discharge curve; WLP enables placement inside compact battery packs. |
Use Scenario: Detecting ambient light rise to wake wearable device from hibernation using photodiode output. IC Role / Device Role / Timing Role: Noninverting comparator senses photodiode current converted to voltage across load resistor; triggers MCU via open-drain interrupt on threshold crossing. Use Value: Input high-impedance preserves photodiode linearity; 8mV hysteresis prevents false wake-ups from ambient flicker; -40°C to +125°C rating covers outdoor use. |
| Portable Medical Sensor Alert | Industrial Edge Node Threshold Trip |
|
Use Scenario: Alerting user when blood glucose sensor output exceeds clinical safety limit (e.g., 400mg/dL). IC Role / Device Role / Timing Role: Comparator interfaces with analog front-end amplifier; compares scaled sensor output to precision external reference; drives buzzer enable line. Use Value: 1.7V–5.5V supply compatibility matches single-cell alkaline or rechargeable LiPo rails; WLP minimizes PCB real estate in disposable test strips. |
Use Scenario: Detecting temperature excursion in sealed industrial IoT enclosure using NTC thermistor divider. IC Role / Device Role / Timing Role: Noninverting comparator monitors thermistor voltage; open-drain output signals microcontroller on overtemperature condition. Use Value: Automotive-grade temp range ensures reliability in unventilated enclosures; 0.1V input range supports low-voltage thermistor bias schemes; RF filtering rejects EMI from nearby motors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV7011YFPR | Single nanoPower comparator (600nA), SOT-553 package (1.6mm × 1.6mm), push-pull output, no internal hysteresis. | Requires external hysteresis network; larger footprint; unsuitable where open-drain wired-OR or mixed-voltage interfacing is needed. | Select TLV7011YFPR only if push-pull drive and smaller supply current tolerance (600nA vs. 500nA) are acceptable and board space permits 2.5× larger package. |
| MAX40025ANT+T | Pin-compatible WLP comparator (500nA), but inverting input, open-drain, no internal hysteresis, same 0.73mm × 0.73mm footprint. | Requires inverted signal routing; lacks factory hysteresis - needs external feedback for noise immunity. | Choose MAX40025ANT+T only when inverting logic polarity is required and external hysteresis can be added; otherwise MAX40002ANS+T provides superior out-of-box noise rejection. |
Compared with TLV7011YFPR and MAX40025ANT+T, MAX40002ANS+T uniquely combines noninverting topology, built-in 8mV hysteresis, and smallest WLP footprint - reducing BOM count, layout complexity, and system-level validation effort for battery-constrained portable designs.
Availability
MAX40002ANS+T is available at Aetrix Electronics and suitable for battery voltage monitoring, low-power wake-up detection, portable medical sensor alerts, and industrial edge node threshold trip applications requiring stable component supply across automotive and extended-temperature deployments.
Supply support for MAX40002ANS+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, power, and reliability.
MAX40002ANS+T belongs to the nanoPower comparator family designed specifically for ultra-low-quiescent-current, space-constrained portable and battery-powered systems - emphasizing minimal board footprint, extended operational lifetime, and robustness across harsh environmental conditions.
FAQ
What is the reference voltage configuration of MAX40002ANS+T?
MAX40002ANS+T has no internal voltage reference - it relies entirely on an external reference applied to the VCC/REF pin, which also serves as its supply voltage. This distinguishes it from variants like MAX40002ANS02+T (0.2V internal ref) or MAX40002ANS12+T (1.222V internal ref). The external reference must be stable and within 1.7V–5.5V.
Does MAX40002ANS+T support operation below 1.7V supply?
No. MAX40002ANS+T is specified for 1.7V to 5.5V supply voltage. Operation below 1.7V is outside datasheet limits and may result in undefined output behavior, increased propagation delay, or failure to assert correct logic states. For sub-1.7V applications, consider alternative comparators explicitly rated down to 0.9V or 1.1V.
Can MAX40002ANS+T drive a 3.3V microcontroller GPIO directly?
Yes - when used with a 3.3V pullup resistor on the open-drain OUT pin, MAX40002ANS+T can directly interface with 3.3V-tolerant MCU GPIOs. The output will sink current to pull the line low and float high (via pullup) to 3.3V. Ensure the MCU input threshold (e.g., VIH ≥ 2.0V) is met and that the pullup resistor value (e.g., 10kΩ–100kΩ) balances speed and power.
What is the maximum input voltage allowed at the IN pin of MAX40002ANS+T?
The absolute maximum input voltage at the IN pin is –0.3V to +6V relative to GND, per Absolute Maximum Ratings. This allows the IN pin to safely accept signals exceeding VCC (e.g., 5V input while VCC = 3.3V), unlike conventional comparators limited by input ESD diodes. However, sustained operation above VCC + 0.3V should be avoided unless transient protection is confirmed.
Is MAX40002ANS+T pin-compatible with other members of the MAX40002–MAX40005 family?
Yes - all WLP variants (e.g., MAX40002ANS+T, MAX40003ANS+T, MAX40004ANS+T) share identical 4-bump WLP pinout (A1=OUT, A2=IN, B1=VCC/REF, B2=GND). However, functional differences exist: MAX40002ANS+T is noninverting/open-drain; MAX40003ANS+T is inverting/open-drain; MAX40004ANS+T is noninverting/push-pull. PCB layout is interchangeable, but firmware and external circuitry must match polarity and output type.
MAX40002ANS+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 4-XFBGA, WLBGA
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- with Voltage Reference
- Number of Elements:
- 1
- Output Type:
- Open-Drain
- Voltage - Supply, Single/Dual (±):
- 1.7V ~ 5.5V
- :
- 10mV @ 3.3V
- Voltage - Input Offset (Max):
- 0.03µA
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 1.1µA
- Current - Quiescent (Max):
- 46dB PSRR (Min)
- CMRR, PSRR (Typ):
- 9µs (Typ)
- Propagation Delay (Max):
- 8mV
- Hysteresis:
- -40°C ~ 125°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 4-WLP (0.73x0.73)
MAX40002ANS+T FAQ
1.How can I place an order for MAX40002ANS+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX40002ANS+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 MAX40002ANS+T reliable?
The price and inventory of MAX40002ANS+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX40002ANS+T is usually 5 days.
3.What payment methods are accepted for MAX40002ANS+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX40002ANS+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX40002ANS+T?
MAX40002ANS+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX40002ANS+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 MAX40002ANS+T?
For technical support, including MAX40002ANS+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX40002ANS+T requirements.
6.How does Aetrix verify that MAX40002ANS+T is sourced from the original manufacturer or authorized distributors?
All MAX40002ANS+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 MAX40002ANS+T meets industry standards.
7.What is the process for return or replacement of MAX40002ANS+T?
All MAX40002ANS+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX40002ANS+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 MAX40002ANS+T part is unused and in its original packaging.
Return procedure for MAX40002ANS+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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