My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX9041AESA
- Part No.:
- MAX9041AESA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX9041AESA.pdf
- Description:
- IC COMPARATOR 1 W/VOLT REF 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,754
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX9041AESA 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, 400ns propagation delay, and ±0.5mV input offset voltage. It operates from 2.5V to 5.5V and is used in precision battery management and window comparator circuits.
For engineers reviewing the MAX9041AESA datasheet, MAX9041AESA pinout, MAX9041AESA application, or MAX9041AESA equivalent, this page delivers verified electrical specs, SO-8 package mapping, A-grade reference accuracy (±0.4%), temperature coefficient (6ppm/°C), and real-world design context for low-power embedded sensing and threshold detection.
Technical Context
The MAX9041AESA integrates a single high-precision comparator and a laser-trimmed series-mode voltage reference on a CMOS process. Its input stage supports common-mode voltages from VEE − 0.25V to VCC + 0.25V, enabling robust operation near supply rails. Internal ±3mV hysteresis ensures noise-immune switching without external components.
The output stage uses a push-pull rail-to-rail design capable of sourcing/sinking up to 8mA, while limiting supply current surges during transitions - reducing power-supply glitches. The reference delivers 2.048V with 6ppm/°C tempco (A grade) and remains stable with capacitive loads up to 4.7nF.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.5V to 5.5V - enables direct use in both 3V and 5V systems without level shifting. |
| Supply Current (ICC) | 40μA at 5V - enables multi-year battery life in always-on sensor nodes. |
| Reference Voltage (VREF) | 2.048V ±0.4% (A grade) - matches standard ADC reference points and simplifies ratiometric designs. |
| Propagation Delay (tPD) | 400ns at 100mV overdrive - supports fast threshold detection in data recovery and pulse-width monitoring. |
| Input Offset Voltage (VOS) | ±0.5mV (typ) - ensures accurate low-level signal discrimination in precision analog front-ends. |
| Common-Mode Input Range | VEE − 0.25V to VCC + 0.25V - allows direct interface with sensors operating beyond supply rails. |
| Output Drive Capability | Rail-to-rail push-pull, ±8mA - eliminates need for external pull-up resistors in logic interfacing. |
Pinout & Package
MAX9041AESA is housed in an 8-pin SO (Small Outline) package with standard JEDEC MS-012AC footprint. Pin 1 is located at the top-left corner adjacent to the index mark.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Comparator Output | Push-pull rail-to-rail output capable of sourcing/sinking 8mA; no external pull-up required. |
| 2 (IN−) | Comparator Inverting Input | Uncommitted input - accepts arbitrary reference or feedback signals; bias current <1pA. |
| 3 (IN+) | Comparator Noninverting Input | Uncommitted input - supports high-impedance sensor interfaces; rail-to-rail common-mode range. |
| 4 (VEE) | Negative Supply | Ground reference for single-supply operation; supports 0V connection in 3V/5V systems. |
| 5 (REF) | Voltage Reference Output | Stable 2.048V output with 6ppm/°C tempco; sinks/sources up to 500μA; stable to 4.7nF. |
| 6 (N.C.) | No Connection | Not internally connected - must remain floating; no routing or grounding required. |
| 7 (VCC) | Positive Supply | Primary power input (2.5–5.5V); supplies both comparator and reference sections. |
| 8 (N.C.) | No Connection | Not internally connected - must remain floating; no routing or grounding required. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Comparator + Reference | Reduces BOM count and PCB area vs. discrete solutions; eliminates reference matching errors. |
| 40μA Quiescent Current | Enables >10-year battery life in coin-cell-powered IoT endpoints with 1Hz wake-up duty cycle. |
| ±3mV Internal Hysteresis | Prevents chatter on slow-moving or noisy inputs - eliminates need for external positive-feedback resistors. |
| Capacitive-Load Stable REF | Operates reliably with up to 4.7nF load capacitance - supports local decoupling without oscillation risk. |
| Rail-to-Rail I/O with 8mA Drive | Directly drives microcontroller GPIOs, LEDs, or small MOSFET gates without buffer stages. |
Applications
| Precision Battery Management | Window Comparators |
|---|---|
Use Scenario: Monitoring cell voltage in lithium-ion battery packs to trigger charge termination or deep-discharge protection. IC Role / Device Role / Timing Role: Comparator compares sensed cell voltage against 2.048V reference to detect overvoltage/undervoltage thresholds. Use Value: A-grade reference accuracy (±0.4%) ensures ±8.2mV absolute threshold tolerance, critical for safe battery operation. | Use Scenario: Detecting valid signal amplitude ranges in industrial sensor interfaces where out-of-range signals indicate fault conditions. IC Role / Device Role / Timing Role: Two MAX9041AESA units configured as high/low comparators with shared REF generate digital window flags. Use Value: Matched reference voltage across both devices eliminates inter-channel offset error, improving window symmetry. |
| IR Receivers | Level Translators |
Use Scenario: Demodulating infrared remote control pulses in consumer electronics with minimal external components. IC Role / Device Role / Timing Role: Comparator detects modulated IR carrier envelope using REF as DC bias point for AC-coupled photodiode output. Use Value: 400ns propagation delay enables reliable detection of 38kHz carrier bursts with sub-microsecond timing resolution. | Use Scenario: Converting 1.8V logic outputs to 3.3V or 5V levels for interfacing with legacy peripherals or ADCs. IC Role / Device Role / Timing Role: Comparator uses REF as threshold and VCC as output swing rail to translate logic states bidirectionally. Use Value: Rail-to-rail push-pull output eliminates external pull-up resistors, reducing power consumption and board space. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar comparator + reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX9041BESE | B-grade reference (±1% initial accuracy, 100ppm/°C tempco) - higher drift and wider tolerance band. | Suitable for cost-sensitive, non-critical threshold detection where ±20mV reference error is acceptable. | Select when long-term stability and tight voltage matching are not required; lower unit cost. |
| TLV4041IDBVR | Single comparator only (no integrated reference); requires external 2.048V reference; 36μA ICC; 300ns tPD. | Requires additional component and layout area; offers faster response but increases BOM complexity. | Choose when independent reference selection or higher speed is prioritized over integration and space savings. |
Compared with MAX9041BESE, MAX9041AESA provides tighter reference accuracy and lower temperature drift - critical for precision battery cutoff. Compared with TLV4041IDBVR, MAX9041AESA reduces system-level component count and layout risk by integrating a matched, stable reference.
Availability
MAX9041AESA is available at Aetrix Electronics and suitable for precision battery management, window comparator circuits, IR receivers, and level translation applications requiring stable component supply across automotive, industrial, and medical device production programs.
Supply support for MAX9041AESA 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 for ultra-low-power, space-constrained applications requiring integrated precision threshold detection - especially in battery-powered instrumentation and portable electronics.
FAQ
What is the reference voltage accuracy and temperature coefficient of MAX9041AESA?
The MAX9041AESA features an A-grade 2.048V voltage reference with ±0.4% initial accuracy over temperature and a typical temperature coefficient of 6ppm/°C. This specification is guaranteed across the full −40°C to +85°C operating range and enables high-accuracy threshold setting without calibration in precision analog systems.
Does MAX9041AESA require an external capacitor on the REF pin for stability?
No, MAX9041AESA does not require an external capacitor on the REF pin for stability. The internal reference is designed to remain stable with capacitive loads up to 4.7nF. An external capacitor may be added to improve transient response under step-load conditions, but it is optional for basic operation.
What is the maximum output drive capability of the comparator in MAX9041AESA?
The comparator output in MAX9041AESA is a rail-to-rail push-pull stage capable of sourcing and sinking up to 8mA. At VCC = 5V and ISINK = 8mA, VOL is guaranteed ≤0.55V; at VCC = 5V and ISOURCE = 8mA, VOH is guaranteed ≥4.45V - enabling direct interface with most logic families and small loads.
Can MAX9041AESA operate from a 3V supply?
Yes, MAX9041AESA operates from a 2.5V to 5.5V single supply, making it fully compatible with 3V systems. At VCC = 3V, supply current remains ~40μA, propagation delay increases slightly to ~450ns, and output swing maintains rail-to-rail performance - ensuring reliable operation in low-voltage embedded designs.
How is the IN− input configured in MAX9041AESA?
In MAX9041AESA, the IN− input is uncommitted - meaning it is not internally tied to any other node (unlike MAX9040, where IN− connects to REF). This allows flexible configuration as inverting input for differential sensing, hysteresis feedback, or reference comparison without constraint.
MAX9041AESA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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):
- 1pA @ 5V
- Current - Input Bias (Max):
- 8mA
- Current - Output (Typ):
- 72µA
- 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
- :
- 8-SOIC
MAX9041AESA FAQ
1.How can I place an order for MAX9041AESA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX9041AESA 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 MAX9041AESA reliable?
The price and inventory of MAX9041AESA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX9041AESA is usually 5 days.
3.What payment methods are accepted for MAX9041AESA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX9041AESA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX9041AESA?
MAX9041AESA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX9041AESA 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 MAX9041AESA?
For technical support, including MAX9041AESA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX9041AESA requirements.
6.How does Aetrix verify that MAX9041AESA is sourced from the original manufacturer or authorized distributors?
All MAX9041AESA 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 MAX9041AESA meets industry standards.
7.What is the process for return or replacement of MAX9041AESA?
All MAX9041AESA units undergo pre-shipment inspection (PSI). If there is an issue with MAX9041AESA, 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 MAX9041AESA part is unused and in its original packaging.
Return procedure for MAX9041AESA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX9041AESA 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…
