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Analog Devices Inc./Maxim Integrated MAX9027EBT-T
- Part No.:
- MAX9027EBT-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 6-WFBGA, WLBGA
- Datasheet:
-
MAX9027EBT-T.pdf
- Description:
- IC COMPARATOR 1 GEN PUR 6WLP
- Quantity:
- Payment:
- Shipping:
Inventory:1,273
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Product details
Overview
MAX9027EBT-T from Maxim Integrated is a nanopower, Beyond-the-Rails™ comparator with push-pull output, no internal reference, 0.6µA supply current at 1.8V, guaranteed operation down to +1.8V supply, and rail-to-rail output swing up to ±5mA - designed for precision low-voltage battery-monitoring circuits in portable medical and telemetry systems.
For engineers reviewing the MAX9027EBT-T datasheet, MAX9027EBT-T pinout, MAX9027EBT-T application, or MAX9027EBT-T equivalent, this page delivers verified electrical parameters, UCSP package layout, real-world use cases, and validated alternative options for ultra-low-power sensing and voltage threshold detection.
Technical Context
The MAX9027EBT-T employs a BiCMOS input stage with common-mode range extending 200mV beyond the rails (VEE − 0.2V to VCC + 0.2V) and features internal 4mV hysteresis to suppress noise-induced oscillation. Its break-before-make push-pull output stage eliminates crowbar current, limiting supply-current surges during switching.
Unlike open-drain variants (e.g., MAX9028), the MAX9027EBT-T sources and sinks up to ±5mA while maintaining rail-to-rail output swing - enabling direct interface with CMOS logic and eliminating external pull-up components in single-supply systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 0.6µA typical at VCC = 1.8V - enables >2.8 million hours of operation on two AA alkaline cells |
| Supply Voltage Range | 1.8V to 5.5V - supports direct connection to partially discharged 2-cell batteries without regulation |
| Input Offset Voltage | 0.3–10mV over temperature - ensures stable trip-point accuracy in battery voltage monitoring |
| Input Common-Mode Range | VEE − 0.2V to VCC + 0.2V - allows sensing at ground or supply line without level-shifting |
| Output Drive Capability | ±5mA rail-to-rail swing - directly drives logic inputs or small loads without buffering |
| Propagation Delay | 14µs (high-to-low) / 40µs (low-to-high) at VCC = 5V - balances speed and ultra-low power in wake-up circuits |
| Input Bias Current | 0.15–2nA - minimizes error in high-impedance sensor interfaces (e.g., thermistors) |
Pinout & Package
MAX9027EBT-T uses a 6-bump UCSP (Ultra Compact Silicon Package) measuring 1.0mm × 1.52mm with bumps on bottom. The package is RoHS-compliant and optimized for space-constrained portable designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC (A1) | Positive supply input | Accepts 1.8V–5.5V; powers internal circuitry and output stage |
| VEE (A3/B2) | Negative supply input | Typically GND; defines lower rail for input common-mode and output swing |
| IN+ (B1) | Noninverting input | Accepts signals up to VEE − 0.2V or VCC + 0.2V - enables beyond-the-rails sensing |
| IN− (B3) | Inverting input | Same rail-to-rail+200mV range as IN+; used for threshold comparison or zero-crossing detection |
| OUT (A2) | Push-pull output | Sources/sinks up to ±5mA; swings rail-to-rail without external pull-up |
| REF (N/C) | No connect | Not bonded - MAX9027 has no internal reference; pin left unconnected |
Key Features
| Feature | Design Value |
|---|---|
| Beyond-the-Rails™ input range | Enables direct sensing of signals below ground or above VCC - critical for battery cell voltage monitoring at end-of-life |
| 0.6µA supply current | Reduces average system power by >50% vs. reference-equipped variants - extends battery life in always-on telemetry nodes |
| Internal 4mV hysteresis | Eliminates need for external feedback resistors in noisy environments - simplifies PCB layout and BOM |
| Crowbar-current-free switching | Prevents supply glitches during output transitions - avoids interference with sensitive analog sensors on shared rails |
| Rail-to-rail push-pull output | Drives CMOS logic directly across full VCC–VEE range - removes level-shifters in mixed-voltage subsystems |
Applications
| 2-Cell Battery Monitoring | Ultra-Low-Power Telemetry |
|---|---|
Use Scenario: Monitoring individual cell voltages in dual-cell Li-ion or NiMH packs to detect under-voltage shutdown thresholds. IC Role / Device Role / Timing Role: Precision comparator detecting when cell voltage drops below 2.7V or 1.8V cutoff points. Use Value: 0.6µA quiescent current enables continuous monitoring without depleting backup batteries over years of storage. |
Use Scenario: Wake-up trigger in remote environmental sensors that transmit data only upon threshold breach (e.g., temperature excursion). IC Role / Device Role / Timing Role: Low-power voltage window detector initiating MCU wake-up via interrupt signal. Use Value: Beyond-the-rails inputs allow direct connection to thermistor divider outputs referenced to battery ground - no op-amp buffer needed. |
| Medical Instrument Sensing | Logic-Level Translation |
Use Scenario: Detecting ECG electrode contact loss by monitoring impedance shift across skin interface. IC Role / Device Role / Timing Role: High-impedance input comparator comparing AC-coupled signal amplitude against reference threshold. Use Value: 0.15nA input bias current prevents loading of high-Z electrode circuits - preserves signal integrity. |
Use Scenario: Converting 5V microcontroller GPIO outputs to 3.3V-compatible signals for low-voltage peripherals. IC Role / Device Role / Timing Role: Push-pull output driving 3.3V logic rail directly - no pull-up resistor required. Use Value: Eliminates external component count and board area vs. open-drain alternatives like MAX9028. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar nanopower comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX9025EBT-T | Includes 1.236V ±1% internal reference; 1.0µA supply current | Used where fixed reference simplifies threshold setting (e.g., battery overvoltage protection) | Select MAX9025EBT-T when reference integration reduces external component count and 0.4µA extra current is acceptable |
| TLV3691IDCKR | 0.55µA supply current; rail-to-rail I/O; no internal reference; SC70-5 package | Higher propagation delay (25µs); lacks Beyond-the-Rails input capability | Choose TLV3691IDCKR only if UCSP footprint is not required and input range limited to rail-referenced signals |
Compared with MAX9025EBT-T, the MAX9027EBT-T trades integrated reference for 40% lower supply current and maintains identical pinout and performance - ideal when external threshold generation is preferred. Against TLV3691IDCKR, it offers superior input range and faster response but requires UCSP assembly capability.
Availability
MAX9027EBT-T is available at Aetrix Electronics and suitable for 2-cell battery monitoring, ultra-low-power telemetry, and medical instrument sensing requiring stable component supply across extended production lifecycles.
Supply support for MAX9027EBT-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 timing applications in harsh, space-constrained environments.
The MAX9025–MAX9028 family targets ultra-low-power battery-operated systems requiring reliable voltage threshold detection with minimal quiescent current - especially where input signals exceed supply rails.
FAQ
What is the operating supply voltage range for MAX9027EBT-T?
The MAX9027EBT-T operates from 1.8V to 5.5V. It is guaranteed functional down to +1.8V, making it suitable for direct connection to aging 2-cell alkaline or NiMH batteries without regulation. Absolute maximum rating is +6V between VCC and VEE.
Does MAX9027EBT-T include an internal voltage reference?
No, MAX9027EBT-T does not include an internal voltage reference. Unlike MAX9025EBT-T or MAX9026EBT-T, it omits the 1.236V reference to achieve lower 0.6µA supply current. The REF pin is not bonded and must remain unconnected in PCB layout.
What is the input common-mode voltage range of MAX9027EBT-T?
The MAX9027EBT-T features a Beyond-the-Rails™ input stage with common-mode range from VEE − 0.2V to VCC + 0.2V. This allows valid operation when either input is driven 200mV below ground or 200mV above VCC - essential for ground-referenced battery sensing.
Can MAX9027EBT-T drive a 5mA load rail-to-rail?
Yes, MAX9027EBT-T's push-pull output delivers rail-to-rail swing with ±5mA source/sink capability. At VCC = 5V and ISINK = 5mA, VOL is ≤500mV; at VCC = 1.8V and ISINK = 1mA, VOL is ≤300mV - ensuring robust logic-level compatibility.
What package type and dimensions does MAX9027EBT-T use?
MAX9027EBT-T uses a 6-bump UCSP (Ultra Compact Silicon Package) measuring 1.0mm × 1.52mm with bumps on the bottom side. It is RoHS-compliant, marked "ADD" on top, and rated for operation from −40°C to +85°C.
MAX9027EBT-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 6-WFBGA, WLBGA
- Series:
- Beyond-the-Rails™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- General Purpose
- Number of Elements:
- 1
- Output Type:
- CMOS, Push-Pull, Rail-to-Rail
- Voltage - Supply, Single/Dual (±):
- 1.8V ~ 5.5V
- :
- 5mV @ 5V
- Voltage - Input Offset (Max):
- 0.001µA @ 5V
- Current - Input Bias (Max):
- 50mA
- Current - Output (Typ):
- 1.25µA
- Current - Quiescent (Max):
- 50.45dB CMRR, 60dB PSRR
- CMRR, PSRR (Typ):
- 40µs
- Propagation Delay (Max):
- 4mV
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 6-WLP
MAX9027EBT-T FAQ
1.How can I place an order for MAX9027EBT-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX9027EBT-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 MAX9027EBT-T reliable?
The price and inventory of MAX9027EBT-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX9027EBT-T is usually 5 days.
3.What payment methods are accepted for MAX9027EBT-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX9027EBT-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX9027EBT-T?
MAX9027EBT-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX9027EBT-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 MAX9027EBT-T?
For technical support, including MAX9027EBT-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX9027EBT-T requirements.
6.How does Aetrix verify that MAX9027EBT-T is sourced from the original manufacturer or authorized distributors?
All MAX9027EBT-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 MAX9027EBT-T meets industry standards.
7.What is the process for return or replacement of MAX9027EBT-T?
All MAX9027EBT-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX9027EBT-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 MAX9027EBT-T part is unused and in its original packaging.
Return procedure for MAX9027EBT-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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