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Analog Devices Inc./Maxim Integrated MAX9001EUB+T
- Part No.:
- MAX9001EUB+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Special Purpose Amplifiers
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX9001EUB+T.pdf
- Description:
- IC AMP COMP REF 10UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:4,605
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Product details
Overview
MAX9001EUB+T from Maxim Integrated is a low-power, single-supply analog IC integrating a unity-gain stable op amp (1.25MHz GBW), an 185ns comparator with ±2mV internal hysteresis, and a precision 1.230V ±1% reference with 8ppm/°C tempco. It operates from +2.5V to +5.5V, draws 410µA typical supply current, and features shutdown mode reducing current to 2µA - ideal for photodiode preamps and smart card readers.
For engineers reviewing the MAX9001EUB+T datasheet, MAX9001EUB+T pinout, MAX9001EUB+T application, or MAX9001EUB+T equivalent, this device is selected for battery-powered signal conditioning where rail-to-rail output swing, ground-sensing inputs, and integrated reference stability are critical design requirements.
Technical Context
The op amp section is unity-gain stable with 1.25MHz gain-bandwidth and 0.85V/µs slew rate, supporting capacitive loads up to 250pF. Its input common-mode range extends from 150mV below VSS to within 1.2V of VDD, and output swings rail-to-rail while delivering ±2.5mA.
The comparator provides 185ns propagation delay, ±2mV built-in hysteresis, and rail-to-rail output capable of ±4.0mA drive. Its inverting input is internally tied to the 1.230V reference, and its input common-mode range spans from 150mV below VSS to within 1.1V of VDD.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | +2.5V to +5.5V single supply - enables direct interface with Li-ion, 3.3V, and 5V logic systems without level shifting. |
| Quiescent Current | 410µA typical - supports >1-year battery life in always-on sensor nodes at 3V. |
| Shutdown Current | 2µA - reduces power by 200×, enabling ultra-low-power wake-up architectures. |
| Op Amp GBW | 1.25MHz - sufficient for DC–100kHz signal conditioning in photodiode and IR receiver front-ends. |
| Comparator Propagation Delay | 185ns - ensures timely edge detection in keyless entry and bar-code scanning applications. |
| Reference Accuracy | 1.230V ±1% (±12.3mV) - eliminates need for external trimming in precision thresholding circuits. |
| Reference Tempco | 8ppm/°C - drift <±1mV over −40°C to +85°C, critical for temperature-stable zero-crossing detectors. |
Pinout & Package
MAX9001EUB+T is housed in a 10-pin µMAX package (3mm × 3mm, 0.8mm height), optimized for space-constrained portable designs. Pin pitch is 0.5mm, and the package is RoHS-compliant and halogen-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7, 8, 14 | VDD | Positive supply input - accepts +2.5V to +5.5V; requires local 0.1µF bypass to ground. |
| 2 | SHDN | Active-low shutdown control - pulls high to enable, drives low (<0.3×VDD) to enter 2µA shutdown state. |
| 3 | AOUT | Op amp output - rail-to-rail swing, ±2.5mA drive, stable with ≤250pF capacitive load. |
| 4 | AIN− | Inverting op amp input - ground-sensing down to VSS −150mV, high-impedance MOS input. |
| 5 | AIN+ | Noninverting op amp input - same ground-sensing capability as AIN−. |
| 6 | VSS | Negative supply / ground - reference and comparator common-mode baseline. |
| 9 | REF | 1.230V reference output - ±1% accuracy, sinks/sources up to 1mA, stable with ≤100nF load. |
| 10 | CIN+ | Noninverting comparator input - high-Z bipolar input, common-mode range to VDD −1.1V. |
| 11 | CIN− | Inverting comparator input - internally connected to REF; not externally accessible on MAX9001. |
| 12 | COUT | Comparator output - rail-to-rail CMOS output, ±4.0mA drive, glitch-minimized switching. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated reference | 1.230V ±1%, 8ppm/°C - replaces discrete reference + divider, saving PCB area and calibration effort. |
| Rail-to-rail outputs | Op amp and comparator swing within millivolts of VDD/VSS - maximizes dynamic range in single-supply systems. |
| Ground-sensing inputs | Inputs operate down to VSS −150mV - enables direct interfacing with 0V-referenced sensors like photodiodes. |
| No phase reversal | Op amp maintains correct polarity even when inputs exceed common-mode range - prevents latch-up in overdriven conditions. |
| Low-glitch comparator | Proprietary output stage minimizes supply current spikes during transitions - avoids noise coupling into sensitive analog sections. |
Applications
| Photodiode Preamp | Smart Card Reader |
|---|---|
Use Scenario: Amplifying weak current from silicon photodiodes in optical smoke detectors or pulse oximeters. IC Role / Device Role / Timing Role: Op amp configured as transimpedance amplifier; comparator monitors amplified signal against REF-derived threshold. Use Value: Integrated 1.230V reference eliminates external resistor network, reducing component count and drift-induced false alarms. | Use Scenario: Detecting card insertion and decoding contact-based communication protocols in point-of-sale terminals. IC Role / Device Role / Timing Role: Comparator performs fast, noise-immune voltage-level detection on card I/O lines; op amp buffers analog signals. Use Value: ±2mV internal hysteresis prevents chatter on slow-rising card detect signals, ensuring reliable insertion event capture. |
| Single-Supply Zero-Crossing Detector | Infrared Receiver Front-End |
Use Scenario: Converting AC line voltage or audio signals to clean digital zero-crossing pulses for timing or synchronization. IC Role / Device Role / Timing Role: Op amp conditions input; comparator compares against REF-biased midpoint to generate precise edges. Use Value: 185ns propagation delay and rail-to-rail output ensure sub-microsecond timing resolution in energy metering applications. | Use Scenario: Demodulating 38kHz modulated IR signals from remote controls in consumer electronics. IC Role / Device Role / Timing Role: Op amp amplifies filtered IR detector output; comparator slices signal using REF-derived threshold. Use Value: Low 410µA quiescent current enables always-on IR wake-up in battery-powered devices without compromising responsiveness. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar op amp + comparator + reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX9000EUA+ | 8-pin SO package; no shutdown; same op amp/comparator/ref specs but lacks SHDN pin. | Suitable only where continuous operation is acceptable and board space allows SO-8. | Select when shutdown functionality is unnecessary and cost-sensitive SO packaging is preferred. |
| MAX9004ESA+ | 14-pin SO package; identical electrical specs and shutdown function; larger footprint and different pinout. | Better thermal performance and higher ESD robustness; suited for industrial environments with vibration or long-term reliability demands. | Choose for production systems requiring SO-14 mechanical stability and legacy board compatibility. |
Compared with MAX9000EUA+ and MAX9004ESA+, the MAX9001EUB+T uniquely combines 10-pin µMAX miniaturization, active-low shutdown control, and full functional integration - making it optimal for space- and power-constrained portable designs where layout density and battery runtime are primary constraints.
Availability
MAX9001EUB+T is available at Aetrix Electronics and suitable for photodiode preamps, smart card readers, and infrared receivers requiring stable component supply across industrial temperature ranges (−40°C to +85°C).
Supply support for MAX9001EUB+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
Maxim Integrated (now part of Analog Devices) designs precision analog and mixed-signal ICs for power, sensing, and connectivity applications.
The MAX9000–MAX9005 family was engineered to consolidate op amp, comparator, and reference functions into minimal-footprint packages for portable and battery-operated instrumentation.
FAQ
What is the operating temperature range for MAX9001EUB+T?
The MAX9001EUB+T is rated for operation from −40°C to +85°C. This industrial temperature range ensures reliable performance in portable medical devices, automotive access systems, and outdoor consumer electronics where ambient conditions vary widely. All electrical specifications in the datasheet are guaranteed across this full range.
Does MAX9001EUB+T require external components to use the internal reference?
No, the MAX9001EUB+T's 1.230V reference is fully self-contained and requires no external resistors or capacitors for basic operation. A 0.1µF ceramic capacitor is recommended between REF and VSS for noise suppression under dynamic load conditions, but the reference functions accurately without it across its specified 0–1mA sink/source range.
How does the shutdown mode affect the outputs of MAX9001EUB+T?
In shutdown mode (SHDN pin pulled low), the MAX9001EUB+T disables both the op amp and comparator output stages, placing AOUT and COUT into high-impedance states. The internal reference remains active unless explicitly disabled via external circuitry. Supply current drops to 2µA, preserving battery charge while allowing rapid wake-up (<16µs enable delay) upon SHDN reassertion.
Can MAX9001EUB+T drive a 10kΩ load while maintaining rail-to-rail output swing?
Yes. The MAX9001EUB+T op amp delivers rail-to-rail output swing (within millivolts of VDD/VSS) into 10kΩ loads across the full temperature range. At VDD = 5V and TA = +25°C, VOL is ≤2.5mV and VOH is ≥VDD − 2.5mV with 10kΩ to ground or VDD. Performance degrades only under heavier loads (>10mA) or extreme temperatures.
Is the comparator input hysteresis on MAX9001EUB+T adjustable or fixed?
The comparator hysteresis on MAX9001EUB+T is fixed at ±2mV and is implemented internally - no external components or configuration pins adjust it. This value is input-referred and provides consistent noise immunity across supply voltages and temperatures, eliminating design uncertainty in threshold stability for applications like zero-crossing detection.
MAX9001EUB+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Amplifier, Comparator, Reference
- Applications:
- Smart Card
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 10-uMAX/uSOP
MAX9001EUB+T FAQ
1.How can I place an order for MAX9001EUB+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX9001EUB+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 MAX9001EUB+T reliable?
The price and inventory of MAX9001EUB+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX9001EUB+T is usually 5 days.
3.What payment methods are accepted for MAX9001EUB+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX9001EUB+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX9001EUB+T?
MAX9001EUB+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX9001EUB+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 MAX9001EUB+T?
For technical support, including MAX9001EUB+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX9001EUB+T requirements.
6.How does Aetrix verify that MAX9001EUB+T is sourced from the original manufacturer or authorized distributors?
All MAX9001EUB+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 MAX9001EUB+T meets industry standards.
7.What is the process for return or replacement of MAX9001EUB+T?
All MAX9001EUB+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX9001EUB+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 MAX9001EUB+T part is unused and in its original packaging.
Return procedure for MAX9001EUB+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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