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Analog Devices Inc./Maxim Integrated MAX40004ANS02+
- Part No.:
- MAX40004ANS02+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 4-XFBGA, WLBGA
- Datasheet:
-
MAX40004ANS02+.pdf
- Description:
- IC COMPARATOR 1 GEN PUR 4WLP
- Quantity:
- Payment:
- Shipping:
Inventory:1,882
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Product details
Overview
MAX40004ANS02+ from Analog Devices is a nanoPower, noninverting-input, push-pull-output comparator with factory-trimmed 0.2V internal reference voltage, 500nA supply current, and operation from 1.7V to 5.5V supply. It features 8mV internal hysteresis, 0.1V–5.5V input voltage range independent of supply, and high-impedance inputs even at VCC = 0V. It is used in battery-powered voltage monitoring circuits where ultra-low quiescent current and minimal board space are critical.
For engineers reviewing the MAX40004ANS02+ datasheet, MAX40004ANS02+ pinout, MAX40004ANS02+ application, or MAX40004ANS02+ equivalent, key selection criteria include internal reference accuracy (174–226mV over –40°C to +125°C), push-pull output drive capability (sourcing 1mA with VOH ≥ VCC – 0.4V), WLP package footprint (0.73mm × 0.73mm), and RF-immune input architecture enabling robust operation in noisy portable environments.
Technical Context
The MAX40004ANS02+ implements a BiCMOS input stage that allows input voltages up to 6V regardless of VCC, eliminating clamping diode limitations. Its internal 0.2V reference is temperature-compensated and integrated into the comparator's trip-point circuitry - no external reference or resistor divider required.
It uses a break-before-make output driver architecture to minimize supply current spikes during transitions. The push-pull output eliminates external pull-up resistors and supports direct interfacing with 1.8V/3.3V/5V logic, while internal filtering ensures >40dB PSRR and immunity to RF interference on input traces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 500nA typical at TA = –40°C to +125°C - enables years of operation on coin-cell batteries in always-on sensing nodes. |
| Internal Reference Voltage | 0.2V ±12.6mV over –40°C to +125°C - provides precise low-threshold detection without external components. |
| Input Voltage Range | 0.1V to 5.5V, independent of VCC - supports monitoring of sub-1V rails (e.g., LDO outputs) even when powered from higher supplies. |
| Propagation Delay | 9µs (high-to-low), 25µs (low-to-high) at 100mV overdrive - sufficient for slow-varying battery voltage or temperature thresholds. |
| Output Drive | Push-pull: VOH ≥ VCC – 0.4V @ 1mA, VOL ≤ 0.4V @ 2mA - directly drives MCU GPIOs or logic inputs without pull-ups. |
| Hysteresis | 8mV typical - suppresses false triggering from noise on low-amplitude signals like sensor outputs or battery sense lines. |
| Operating Temperature | –40°C to +125°C - qualified for automotive cabin, industrial control, and extended-life portable medical devices. |
Pinout & Package
MAX40004ANS02+ is supplied in a 4-bump wafer-level package (WLP) with 0.35mm pitch and 0.73mm × 0.73mm footprint. The package has no leads and requires solder reflow onto PCB pads per land pattern AN1891.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | OUT | Push-pull output - actively drives high or low; compatible with 1.8V/3.3V/5V logic without external pull-up. |
| A2 | IN | Noninverting input - output goes high when IN > VREF-INT (0.2V); high-Z (>100MΩ) even at VCC = 0V. |
| B1 | VCC/REF | Supply and reference input - powers device and sources internal 0.2V reference; bypass with 0.1µF capacitor. |
| B2 | GND | Analog ground - common return for VCC/REF, IN, and OUT; must be low-impedance for stable reference operation. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small WLP footprint | 0.73mm × 0.73mm - occupies less area than two 0402 passives, ideal for space-constrained wearables and hearing aids. |
| Zero-power-input behavior | Input leakage ≤30nA at VCC = 0V - enables safe "hot-swap" monitoring of powered subsystems without backfeeding. |
| RF-immune input architecture | On-chip filtering + >40dB PSRR - prevents false triggers from GSM bursts or Bluetooth RF coupling into sensor traces. |
| Wide supply compatibility | 1.7V–5.5V operation - interfaces natively with 1.8V microcontrollers, 3.3V PMICs, and 5V legacy peripherals. |
| Factory-trimmed precision reference | 0.2V threshold with ±6.3% max deviation over temperature - eliminates calibration overhead in production test. |
Applications
| Battery Voltage Monitor | Low-Power Sensor Threshold Detector |
|---|---|
|
Use Scenario: Monitoring Li-ion cell voltage during deep sleep mode in a wireless earbud, triggering wake-up when voltage drops below 3.0V. IC Role / Device Role / Timing Role: Comparator with fixed 0.2V internal reference used in conjunction with a resistor divider to scale battery voltage down to match reference. Use Value: 500nA quiescent current extends standby time by months; push-pull output directly asserts MCU interrupt pin without pull-up resistor. |
Use Scenario: Detecting motion onset from a MEMS accelerometer's analog output in a fitness tracker, only activating BLE radio upon threshold crossing. IC Role / Device Role / Timing Role: Noninverting comparator comparing sensor DC offset against 0.2V reference to detect baseline shift indicating movement. Use Value: Input voltage range down to 0.1V enables detection of µV-level sensor offsets; internal hysteresis prevents chatter near threshold. |
| USB-C Port Overvoltage Protection | Medical Pulse Oximeter LED Driver Enable |
|
Use Scenario: Safeguarding downstream 3.3V logic from accidental 5V or 9V USB PD voltage on a shared VBUS line. IC Role / Device Role / Timing Role: Comparator monitoring VBUS via resistive divider; output disables power switch when VBUS exceeds safe limit. Use Value: Input can tolerate up to 6V regardless of VCC - allows direct connection to unregulated VBUS without level-shifting; operates from same 3.3V rail as protected logic. |
Use Scenario: Enabling red/IR LED drivers only when SpO₂ measurement cycle begins, minimizing average current draw in a disposable patch sensor. IC Role / Device Role / Timing Role: Comparator triggered by MCU-generated timing pulse (0.2V threshold) to gate LED driver enable signal. Use Value: 9µs propagation delay ensures precise LED turn-on timing; push-pull output drives MOSFET gate directly without RC delay from pull-up. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV3691IDCKR | 0.4V internal reference, 320nA supply current, SOT-23-5 package, open-drain output | Requires external pull-up; lower reference voltage limits low-threshold flexibility; larger footprint (1.2mm × 1.6mm) | Select when lowest possible IQ is mandatory and system already includes pull-up infrastructure. |
| MAX40014ANS09+ | 0.9V internal reference, same WLP package, push-pull output, 500nA IQ | Higher threshold better suited for mid-rail monitoring (e.g., 1.8V supply UVLO); not interchangeable for 0.2V detection | Select when detecting ~0.9V thresholds (e.g., 1.8V rail at 50% dropout) with identical size and power constraints. |
Compared with TLV3691IDCKR, MAX40004ANS02+ offers direct logic interfacing and smaller size but trades off slightly higher IQ; compared with MAX40014ANS09+, it provides finer-grained low-voltage detection at the cost of reduced margin against noise in higher-voltage systems.
Availability
MAX40004ANS02+ is available at Aetrix Electronics and suitable for battery-powered medical wearables, automotive cabin sensors, and ultra-compact IoT edge nodes requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for MAX40004ANS02+ 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.
MAX40004ANS02+ belongs to the nanoPower comparator family designed specifically for space- and energy-constrained portable electronics - emphasizing zero-compromise performance at sub-1µA supply currents and sub-1mm² footprints.
FAQ
What is the exact internal reference voltage tolerance of MAX40004ANS02+ over temperature?
The MAX40004ANS02+ has a factory-trimmed internal reference voltage of 0.2V with a guaranteed range of 174mV to 226mV over the full –40°C to +125°C operating temperature range. This ±12.6mV (±6.3%) tolerance is specified in the Electrical Characteristics table under "Switching Threshold Voltage" for part suffix "02+" at TA = –40°C to +125°C.
Does MAX40004ANS02+ require an external pull-up resistor on its output?
No, MAX40004ANS02+ does not require an external pull-up resistor because it features a push-pull output stage capable of both sourcing and sinking current. Its output actively drives high (VOH ≥ VCC – 0.4V at 1mA) and low (VOL ≤ 0.4V at 2mA), enabling direct interface with MCU GPIOs or logic inputs without additional components.
Can MAX40004ANS02+ operate with input voltages exceeding its supply voltage?
Yes, MAX40004ANS02+ supports input voltages from 0.1V to 5.5V independent of VCC, and its absolute maximum rating allows IN to GND of –0.3V to +6V. This enables direct monitoring of higher-voltage rails (e.g., 5V VBUS) using a simple resistor divider, even when powered from a lower 1.8V supply - a key advantage over conventional comparators with input ESD clamps.
What is the propagation delay of MAX40004ANS02+ under typical conditions?
Under typical conditions (100mV overdrive, VCC = 3.3V, TA = +25°C), MAX40004ANS02+ exhibits 9µs propagation delay for high-to-low transitions and 25µs for low-to-high transitions. These values increase slightly at temperature extremes and lower supply voltages, remaining within 45µs (low-to-high) at –40°C and 1.8V supply.
Is MAX40004ANS02+ pin-compatible with other devices in the MAX4000x family?
MAX40004ANS02+ shares the same 4-bump WLP pinout (A1=OUT, A2=IN, B1=VCC/REF, B2=GND) with all MAX40002–MAX40005 and MAX40012–MAX40015 WLP variants. However, pin compatibility does not imply functional interchangeability - substituting a MAX40004ANS02+ for a MAX40002ANS02+ (open-drain) or MAX40005ANS02+ (inverting) will cause incorrect logic behavior due to output type and polarity differences.
MAX40004ANS02+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 4-XFBGA, WLBGA
- Series:
- -
- Packaging:
- Strip
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 1
- Output Type:
- Push-Pull
- Voltage - Supply, Single/Dual (±):
- 1.7V ~ 5.5V
- :
- 10mV @ 3.3V
- Voltage - Input Offset (Max):
- 0.03µA
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 1.3µA
- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- 25µs
- Propagation Delay (Max):
- 8mV
- Hysteresis:
- -40°C ~ 125°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 4-WLP (0.73x0.73)
MAX40004ANS02+ FAQ
1.How can I place an order for MAX40004ANS02+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX40004ANS02+ 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 MAX40004ANS02+ reliable?
The price and inventory of MAX40004ANS02+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX40004ANS02+ is usually 5 days.
3.What payment methods are accepted for MAX40004ANS02+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX40004ANS02+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX40004ANS02+?
MAX40004ANS02+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX40004ANS02+ 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 MAX40004ANS02+?
For technical support, including MAX40004ANS02+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX40004ANS02+ requirements.
6.How does Aetrix verify that MAX40004ANS02+ is sourced from the original manufacturer or authorized distributors?
All MAX40004ANS02+ 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 MAX40004ANS02+ meets industry standards.
7.What is the process for return or replacement of MAX40004ANS02+?
All MAX40004ANS02+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX40004ANS02+, 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 MAX40004ANS02+ part is unused and in its original packaging.
Return procedure for MAX40004ANS02+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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