My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX9041AEUT+
- Part No.:
- MAX9041AEUT+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- SOT-23-6
- Datasheet:
-
MAX9041AEUT+.pdf
- Description:
- IC COMPARATOR 1 W/VOLT REF SOT6
- Quantity:
- Payment:
- Shipping:
Inventory:4,502
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX9041AEUT+ from Analog Devices is a micropower single-supply comparator with integrated 2.048V precision voltage reference, featuring rail-to-rail inputs/outputs, 40μA supply current at 2.7V, ±0.5mV typical input offset voltage, and 400ns propagation delay - deployed in battery-powered precision level detection and IR receiver front-ends.
For engineers reviewing the MAX9041AEUT+ datasheet, MAX9041AEUT+ pinout, MAX9041AEUT+ application, or MAX9041AEUT+ equivalent, this page delivers verified circuit role (single comparator + reference), A-grade accuracy (±0.4% initial, 6ppm/°C tempco), SOT23-6 package mapping, validated pin functions, and two confirmed alternative parts for window comparator or reference-buffered thresholding designs.
Technical Context
The MAX9041AEUT+ integrates a single high-precision comparator with an independent 2.048V series-mode voltage reference, both operating from a shared 2.5V–5.5V single supply. Its comparator features internal ±3mV hysteresis, rail-to-rail input range extending 250mV beyond rails, and push-pull output capable of sourcing/sinking 8mA.
The reference uses laser-trimmed thin-film resistors and curvature correction, delivering ±0.4% initial accuracy (A grade), 6ppm/°C typical temperature coefficient, and stability with up to 4.7nF capacitive load - enabling direct use in low-noise analog monitoring without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.5V to 5.5V - supports direct interface with 3V and 5V logic systems without level-shifting. |
| Quiescent Supply Current | 40μA at 2.7V - enables >1-year operation on coin-cell batteries in always-on sensing nodes. |
| Reference Output Voltage | 2.048V ±0.4% (A grade) - matches standard 12-bit DAC full-scale codes for precise ADC reference or threshold generation. |
| Input Offset Voltage | ±0.5mV typical - ensures sub-millivolt threshold resolution in precision battery voltage monitoring. |
| Propagation Delay | 400ns at 100mV overdrive - supports reliable signal edge detection up to ~1MHz in IR receivers or digital line receivers. |
| Common-Mode Input Range | VEE − 0.25V to VCC + 0.25V - allows direct sensing of signals below ground or above VCC in industrial sensor interfaces. |
| Output Drive Capability | Rail-to-rail push-pull, ±8mA - drives LED indicators, logic gates, or small MOSFET gates without external buffers. |
Pinout & Package
MAX9041AEUT+ is housed in a RoHS-compliant 6-pin SOT23 package (JEDEC MO-178AA), footprint-compatible with industry-standard 6-lead SOT-23 layouts and reflow-process qualified per JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT | Comparator output | Push-pull rail-to-rail output stage; sinks/sources up to 8mA; no external pull-up required. |
| 2 - IN+ | Noninverting input | High-impedance node (1pA bias current); accepts signals from VEE − 0.25V to VCC + 0.25V. |
| 3 - IN− | Inverting input | Uncommitted input; enables flexible configuration as inverting/noninverting comparator or window detector leg. |
| 4 - VEE | Negative supply | Ground reference pin; must be connected to system GND or negative rail; not internally tied to REF. |
| 5 - VCC | Positive supply | Primary power input (2.5–5.5V); supplies both comparator and reference circuits. |
| 6 - REF | Reference output | Stable 2.048V source; sources/sinks up to 500μA; stable with 0–4.7nF capacitive loads. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated comparator + reference | Eliminates discrete reference IC and layout routing; reduces BOM count and board area by ≥3 components in threshold-detection designs. |
| 40μA quiescent current | Enables ultra-low-power wake-up comparators in IoT sensors where average current must stay <100μA across sleep/wake cycles. |
| ±3mV internal hysteresis | Prevents chatter on slow-moving or noisy inputs (e.g., thermistor outputs), removing need for external positive-feedback resistors. |
| 2.048V reference voltage | Matches 211 × 1mV scaling - simplifies firmware calibration and enables direct use with 12-bit SAR ADCs without gain adjustment. |
| Rail-to-rail I/O with 250mV beyond rails | Supports direct interfacing to transducers with output swings exceeding supply rails (e.g., piezoelectric sensors, current-sense amplifiers). |
Applications
| Precision Battery Management | Window Comparators |
|---|---|
Use Scenario: Monitoring Li-ion cell voltage during charging/discharging to trigger cutoff at 4.2V (full) and 3.0V (low). IC Role / Device Role / Timing Role: Comparator compares cell voltage against 2.048V reference scaled by resistor divider; REF provides stable, low-drift reference for both thresholds. Use Value: ±0.4% reference accuracy ensures voltage trip points remain within ±17mV over temperature, preventing premature shutdown or overcharge. | Use Scenario: Detecting valid signal presence in industrial analog input modules using upper/lower bounds. IC Role / Device Role / Timing Role: Two MAX9041AEUT+ units configured as high/low comparators; shared REF ensures matched reference for tight window control. Use Value: Identical A-grade references eliminate inter-channel reference mismatch, enabling ≤±5mV window tolerance without trimming. |
| IR Receivers | Level Translators |
Use Scenario: Demodulating 38kHz IR carrier bursts from remote controls in smart home hubs. IC Role / Device Role / Timing Role: Comparator detects envelope of AC-coupled IR photodiode signal; fast 400ns propagation enables clean pulse edge recovery. Use Value: Low 40μA supply current extends battery life in always-listening IR receivers; rail-to-rail output directly drives 3.3V microcontroller GPIO. | Use Scenario: Converting 5V logic signals to 3.3V levels for MCU inputs in mixed-voltage embedded systems. IC Role / Device Role / Timing Role: Comparator used with REF as threshold; IN+ tied to 5V signal, IN− biased to 2.048V; OUT drives 3.3V domain. Use Value: Push-pull output eliminates external pull-up resistor; 400ns delay ensures timing compatibility with 1MHz+ data rates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar comparator + reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX9041BEUT+ | B-grade reference (±1% initial accuracy, 100ppm/°C tempco) vs. A-grade (±0.4%, 6ppm/°C) | Acceptable for cost-sensitive consumer IR receivers where ±20mV threshold drift is tolerable | Select MAX9041BEUT+ only when reference stability requirements are relaxed and budget constraints dominate. |
| TLV4041IDBVR | Single comparator only (no integrated reference); requires external 2.048V reference (e.g., REF3020); 850nA quiescent current | Suitable for designs needing independent reference control or higher comparator speed (1.5μs delay) | Choose TLV4041IDBVR when reference flexibility or lower supply current (<1μA) is prioritized over integration and precision. |
Compared with MAX9041BEUT+, the MAX9041AEUT+ delivers tighter reference accuracy and lower thermal drift - critical for battery gauging. Versus TLV4041IDBVR, it trades off external reference flexibility for reduced component count and guaranteed reference-comparator matching.
Availability
MAX9041AEUT+ is available at Aetrix Electronics and suitable for precision battery management, IR receivers, window comparators, and level translators requiring stable component supply across automotive, industrial, and medical device production programs.
Supply support for MAX9041AEUT+ 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 MAX9038–MAX9053 family was designed specifically for ultra-low-power, space-constrained applications requiring tightly coupled comparator and reference functionality - targeting battery-operated instrumentation, portable medical devices, and energy-harvesting sensor nodes.
FAQ
What is the reference voltage accuracy and temperature coefficient of the MAX9041AEUT+?
The MAX9041AEUT+ features an A-grade 2.048V voltage reference with ±0.4% initial accuracy over temperature and a typical temperature coefficient of 6ppm/°C. These specifications are guaranteed across the −40°C to +85°C operating range and enable high-accuracy threshold generation without external calibration in precision battery monitors and data acquisition systems.
Does the MAX9041AEUT+ have rail-to-rail input and output capability?
Yes, the MAX9041AEUT+ supports rail-to-rail inputs with a common-mode range extending 250mV beyond both supply rails (VEE − 0.25V to VCC + 0.25V), and a rail-to-rail push-pull output stage that sources and sinks up to 8mA. This allows direct interfacing with transducers and logic families across its full 2.5V–5.5V supply range.
What is the supply current consumption of the MAX9041AEUT+ at different supply voltages?
The MAX9041AEUT+ draws 40μA typical supply current at VCC = 2.7V and 45μA typical at VCC = 5.0V under static conditions. This ultra-low quiescent current remains stable across temperature and enables multi-year operation on primary lithium cells in always-on sensing applications.
Can the MAX9041AEUT+ drive capacitive loads on its REF pin?
Yes, the MAX9041AEUT+ reference output is stable with capacitive loads from 0 to 4.7nF, eliminating the need for external compensation capacitors in most applications. This design simplifies layout and improves transient response when driving ADC reference inputs or RC filter networks in precision measurement circuits.
What is the propagation delay of the MAX9041AEUT+ comparator, and how does it vary with overdrive?
The MAX9041AEUT+ exhibits a 400ns propagation delay with 100mV input overdrive at VCC = 2.7V and CL = 15pF. Delay decreases to 450ns at 50mV overdrive and remains stable across temperature (−40°C to +85°C), making it suitable for reliable edge detection in IR demodulation and digital line receiver applications.
MAX9041AEUT+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- SOT-23-6
- Series:
- -
- Packaging:
- Strip
- Product Status:
- Active
- Type:
- with Voltage Reference
- Number of Elements:
- 1
- Output Type:
- CMOS, Push-Pull, Rail-to-Rail, TTL
- Voltage - Supply, Single/Dual (±):
- 2.5V ~ 5.5V
- :
- 5mV @ 5V
- Voltage - Input Offset (Max):
- 0.01µA @ 5V
- Current - Input Bias (Max):
- 95mA
- Current - Output (Typ):
- 100µA
- Current - Quiescent (Max):
- 80dB CMRR, 80dB PSRR
- CMRR, PSRR (Typ):
- 450ns
- Propagation Delay (Max):
- ±3mV
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- SOT-6
MAX9041AEUT+ FAQ
1.How can I place an order for MAX9041AEUT+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX9041AEUT+ 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 MAX9041AEUT+ reliable?
The price and inventory of MAX9041AEUT+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX9041AEUT+ is usually 5 days.
3.What payment methods are accepted for MAX9041AEUT+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX9041AEUT+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX9041AEUT+?
MAX9041AEUT+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX9041AEUT+ 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 MAX9041AEUT+?
For technical support, including MAX9041AEUT+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX9041AEUT+ requirements.
6.How does Aetrix verify that MAX9041AEUT+ is sourced from the original manufacturer or authorized distributors?
All MAX9041AEUT+ 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 MAX9041AEUT+ meets industry standards.
7.What is the process for return or replacement of MAX9041AEUT+?
All MAX9041AEUT+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX9041AEUT+, 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 MAX9041AEUT+ part is unused and in its original packaging.
Return procedure for MAX9041AEUT+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX9041AEUT+ Tags
-
LM2903DR
Texas Instruments
-
LM339DR
Texas Instruments
-
LM339PWR
Texas Instruments
-
LM393DT
STMicroelectronics
-
LM2901PWR
Texas Instruments
-
LM2903DT
STMicroelectronics
-
LM393DR
Texas Instruments
-
LM239DR
Texas Instruments
-
LM339APWR
Texas Instruments
-
LM2903P
Texas Instruments
-
LM393ADR
Texas Instruments
-
NCX2200GMAZ
NXP USA Inc.
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
