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Analog Devices Inc./Maxim Integrated MAX9041AEUT+T
- Part No.:
- MAX9041AEUT+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- SOT-23-6
- Datasheet:
-
MAX9041AEUT+T.pdf
- Description:
- IC COMPARATOR SNGL SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:3,817
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Product details
Overview
MAX9041AEUT+T 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 5V, ±0.5mV typical input offset voltage, and 400ns propagation delay. It operates from 2.5V to 5.5V and is used in battery-powered precision threshold detection circuits.
For engineers reviewing the MAX9041AEUT+T datasheet, MAX9041AEUT+T pinout, MAX9041AEUT+T application, or MAX9041AEUT+T equivalent, this page delivers verified electrical parameters, A-grade reference accuracy (±0.4%), thermal drift (6ppm/°C), SOT23-6 package mapping, and real-world use cases in IR receivers and level translation.
Technical Context
The MAX9041AEUT+T integrates a single high-precision comparator and a laser-trimmed series-mode voltage reference on one die. Its comparator uses CMOS input stage with 1.0pA typical bias current and extends common-mode range 250mV beyond rails (VEE − 0.25V to VCC + 0.25V).
The reference employs curvature-correction circuitry and thin-film resistors to achieve 6ppm/°C tempco and ±0.4% initial accuracy over −40°C to +85°C. The comparator includes fixed ±3mV internal hysteresis and push-pull output capable of sourcing/sinking 8mA.
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 shifters. |
| Quiescent Supply Current | 40μA at 5V - enables multi-year operation in coin-cell–powered devices. |
| Reference Output Voltage | 2.048V ±0.4% (A grade) - matches standard 12-bit DAC full-scale references and simplifies ADC calibration. |
| Input Offset Voltage | ±0.5mV (typ), ±7.0mV (max) - ensures accurate low-level signal discrimination down to millivolt thresholds. |
| Propagation Delay | 400ns at 100mV overdrive - supports reliable timing in 1MHz window comparator and digital line receiver applications. |
| Common-Mode Input Range | VEE − 0.25V to VCC + 0.25V - allows direct sensing of signals beyond supply rails, e.g., sensor outputs near ground or VCC. |
| Output Drive Capability | Rail-to-rail push-pull, ±8mA - eliminates need for external pull-up resistors and drives LED indicators or logic inputs directly. |
Pinout & Package
MAX9041AEUT+T is housed in a RoHS-compliant 6-pin SOT23 package (package code: 21-0058), with 1.6mm × 2.8mm footprint and 0.95mm height - compatible with standard pick-and-place equipment and reflow profiles per JEDEC J-STD-020A.
| 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−) | Comparator Inverting Input | Uncommitted input - accepts arbitrary reference or feedback signal; biased at 1.0pA typical input current. |
| 3 (IN+) | Comparator Noninverting Input | Uncommitted input - connects to sensed signal; common-mode range extends 250mV beyond rails. |
| 4 (VEE) | Negative Supply | Ground reference for single-supply operation; tied to system GND in most designs. |
| 5 (REF) | Voltage Reference Output | Stable 2.048V source; supplies up to ±500μA load current; stable with 0–4.7nF capacitive loads. |
| 6 (VCC) | Positive Supply | Primary power input; supports 2.5V–5.5V; PSRR >55dB ensures noise immunity from supply ripple. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 2.048V reference + comparator | Eliminates discrete reference IC and saves PCB area in space-constrained battery sensors. |
| 40μA quiescent current | Reduces average power to <200μW at 5V - critical for always-on wake-up comparators in IoT endpoints. |
| ±3mV internal hysteresis | Prevents chatter on slow-moving inputs (e.g., thermistor ramps), removing need for external hysteresis resistors. |
| Rail-to-rail I/O with 8mA drive | Directly interfaces with 1.8V/3.3V/5V logic families and drives LEDs or small MOSFET gates without buffers. |
| Stable with 4.7nF REF load capacitance | Permits local decoupling at reference node to suppress transient-induced errors in precision ADC reference paths. |
Applications
| IR Receivers | Level Translators |
|---|---|
Use Scenario: Demodulating 38kHz infrared carrier signals from remote controls in low-power consumer electronics. IC Role / Device Role / Timing Role: Comparator compares filtered IR envelope against 2.048V reference to generate clean digital output; reference provides stable threshold independent of supply variation. Use Value: 400ns propagation delay ensures accurate pulse-width decoding; 40μA supply current extends battery life in TV remotes and smart home sensors. | Use Scenario: Converting 5V logic signals to 3.3V or 1.8V domains in mixed-voltage microcontroller systems. IC Role / Device Role / Timing Role: Comparator acts as bidirectional level shifter using REF as mid-point reference; rail-to-rail output matches target logic thresholds. Use Value: Push-pull output eliminates external pull-ups; uncommitted IN−/IN+ pins allow flexible configuration for rising/falling edge detection. |
| Precision Battery Management | Digital Line Receivers |
Use Scenario: Monitoring cell voltage thresholds (e.g., 2.048V per Li-ion cell) in portable medical devices and wearables. IC Role / Device Role / Timing Role: Comparator compares battery voltage against internal 2.048V reference to trigger charge/discharge control or low-battery alerts. Use Value: ±0.4% reference accuracy ensures ±8mV absolute trip-point tolerance; 6ppm/°C tempco limits drift to <0.5mV over 0–70°C operating range. | Use Scenario: Recovering digital data from noisy analog transmission lines (e.g., RS-485 stubs, long PCB traces). IC Role / Device Role / Timing Role: Comparator slices incoming signal using REF as stable decision threshold; internal hysteresis rejects line noise below ±3mV. Use Value: 1.0pA input bias current prevents loading of high-impedance line receivers; rail-to-rail output ensures full logic swing into FPGA or MCU inputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar comparator + reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX9041BEUT+T | B-grade reference (±1% initial accuracy, 100ppm/°C tempco) vs. A-grade (±0.4%, 6ppm/°C) | Suitable for cost-sensitive industrial controls where tighter reference stability is not required | Select MAX9041BEUT+T when reference drift budget allows >10× higher temperature coefficient and lower initial accuracy. |
| TLV3011IDBVR | Single comparator only (no integrated reference); requires external 2.048V reference; 25μA supply current | Used where reference must be shared across multiple comparators or where higher accuracy external reference (e.g., REF3020) is already present | Choose TLV3011IDBVR if board already includes a precision reference and lowest possible quiescent current (25μA) is critical. |
Compared with MAX9041BEUT+T, the MAX9041AEUT+T delivers 2.5× better reference accuracy and 16× lower tempco - essential for battery voltage monitoring across temperature. Versus TLV3011IDBVR, it trades 15μA higher supply current for full integration, reducing BOM count and layout complexity.
Availability
MAX9041AEUT+T is available at Aetrix Electronics and suitable for precision battery management, IR receivers, level translators, and digital line receivers requiring stable component supply across automotive, industrial, and medical design cycles.
Supply support for MAX9041AEUT+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 MAX9038–MAX9043 family was designed specifically for ultra-low-power, space-constrained applications demanding integrated precision reference and comparator functionality in miniature packages like SOT23 and UCSP.
FAQ
What is the reference voltage accuracy and temperature coefficient of MAX9041AEUT+T?
The MAX9041AEUT+T features an A-grade 2.048V voltage reference with ±0.4% initial accuracy over −40°C to +85°C and a typical temperature coefficient of 6ppm/°C. These specifications are guaranteed by laser trimming and curvature correction, enabling stable threshold generation in battery monitoring and sensor interface applications where reference drift must remain below 0.5mV across temperature.
Does MAX9041AEUT+T support rail-to-rail input and output operation?
Yes, MAX9041AEUT+T supports rail-to-rail input operation with a common-mode range extending 250mV beyond both supply rails (VEE − 0.25V to VCC + 0.25V), and rail-to-rail push-pull output capable of sourcing and sinking up to 8mA. This allows direct interfacing with signals near ground or VCC and eliminates external pull-up resistors in most logic-level translation scenarios.
What is the supply current consumption of MAX9041AEUT+T at different voltages and temperatures?
MAX9041AEUT+T draws 40μA typical supply current at VCC = 5V and TA = +25°C, rising to 47μA at VCC = 2.7V. Over −40°C to +85°C, supply current remains within 40–67μA (VCC = 2.7V) and 45–72μA (VCC = 5V). This ultralow quiescent current enables multi-year operation in coin-cell–powered devices such as wireless sensors and portable medical monitors.
Can MAX9041AEUT+T drive capacitive loads on its REF pin?
Yes, MAX9041AEUT+T's reference output is stable with capacitive loads from 0 to 4.7nF, as confirmed in the datasheet's "Capacitive-Load Stability Range" specification. Adding a 100nF ceramic capacitor at the REF pin improves transient response during step-load changes but is optional for static applications - no minimum capacitance is required for stability.
What are the absolute maximum ratings for MAX9041AEUT+T's supply and input pins?
MAX9041AEUT+T has an absolute maximum supply voltage range of −0.3V to +6V (VCC to VEE), input pin voltage range of (VEE − 0.3V) to (VCC + 0.3V), and output short-circuit duration rated for indefinite connection to either supply rail. Exceeding these limits may cause permanent damage; operation outside the recommended 2.5V–5.5V supply range is not functional or guaranteed.
MAX9041AEUT+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:
- with Voltage Reference
- Number of Elements:
- 1
- Output Type:
- Push-Pull, CMOS, TTL, Rail-to-Rail
- Voltage - Supply, Single/Dual (±):
- 2.5V ~ 5.5V
- :
- 5mV @ 5V
- Voltage - Input Offset (Max):
- 0.01µA @ 5V
- Current - Input Bias (Max):
- 95mA @ 5V
- Current - Output (Typ):
- 72µA
- Current - Quiescent (Max):
- 80dB CMRR, 80dB PSRR
- CMRR, PSRR (Typ):
- 450ns (Typ)
- Propagation Delay (Max):
- ±3mV
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- SOT-6
MAX9041AEUT+T FAQ
1.How can I place an order for MAX9041AEUT+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX9041AEUT+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 MAX9041AEUT+T reliable?
The price and inventory of MAX9041AEUT+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX9041AEUT+T is usually 5 days.
3.What payment methods are accepted for MAX9041AEUT+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX9041AEUT+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX9041AEUT+T?
MAX9041AEUT+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX9041AEUT+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 MAX9041AEUT+T?
For technical support, including MAX9041AEUT+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX9041AEUT+T requirements.
6.How does Aetrix verify that MAX9041AEUT+T is sourced from the original manufacturer or authorized distributors?
All MAX9041AEUT+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 MAX9041AEUT+T meets industry standards.
7.What is the process for return or replacement of MAX9041AEUT+T?
All MAX9041AEUT+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX9041AEUT+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 MAX9041AEUT+T part is unused and in its original packaging.
Return procedure for MAX9041AEUT+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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