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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:7,322
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Product details
Overview
The MAX9027EBT+T from Maxim Integrated is a nanopower, single-channel comparator in a 6-bump UCSP package, featuring Beyond-the-Rails™ inputs, push-pull output, no internal reference, and guaranteed operation from +1.8V to +5.5V supply. It draws only 0.6µA typical supply current at 1.8V and delivers rail-to-rail output swing with ±5mA drive capability-ideal for 2-cell battery monitoring and ultra-low-power sensing at ground or supply line.
For engineers reviewing the MAX9027EBT+T datasheet, MAX9027EBT+T pinout, MAX9027EBT+T application, or MAX9027EBT+T equivalent, this page provides verified technical context, real-world design meaning of key specs, validated pin functions, confirmed alternatives, and supply-chain readiness for OEM and embedded design use.
Technical Context
The MAX9027EBT+T uses a BiCMOS process with a break-before-make push-pull output stage that minimizes supply-current surges during switching-eliminating typical comparator supply glitches. Its input common-mode range extends from VEE − 0.2V to VCC + 0.2V, enabling sensing beyond supply rails.
It integrates 4mV input-referred hysteresis to prevent oscillation with slow or noisy inputs, and features no phase reversal under overdriven conditions. Propagation delay is 14µs (high-to-low) and 40µs (low-to-high) at VCC = 5V, with power-up time of 1.2ms.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +1.8V to +5.5V - supports direct connection to 2-cell alkaline (1.8V–3.0V) or Li-ion (2.7V–3.5V) batteries without regulation. |
| Supply Current | 0.6µA typical at VCC = 5V - enables >2.8 million hours of operation on a 2000mAh AA battery pair (per datasheet Table 1). |
| Input Offset Voltage | 5mV max over temperature - ensures reliable threshold detection in low-voltage battery voltage monitoring. |
| Input Common-Mode Range | VEE − 0.2V to VCC + 0.2V - allows direct sensing of signals referenced to ground or VCC, e.g., battery cathode or anode monitoring. |
| Output Drive Capability | ±5mA rail-to-rail swing - directly drives LEDs, logic inputs, or small MOSFET gates without external buffers. |
| Propagation Delay | 14µs (tPD−), 40µs (tPD+) at VCC = 5V - sufficient for battery voltage polling, wake-up triggers, and slow telemetry sampling. |
| Hysteresis | 4mV input-referred - suppresses chatter from noise or slow ramping battery voltages without external components. |
Pinout & Package
Package: 6-bump UCSP (1.0mm × 1.52mm, bumps on bottom), RoHS-compliant, + suffix indicates lead(Pb)-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC (Pin A1) | Positive supply voltage input | Accepts +1.8V to +5.5V; powers internal circuitry and defines high-output level. |
| VEE (Pin A3 / B2) | Negative supply voltage input | Typically ground (0V); sets low-output level and reference for input common-mode range. |
| IN+ (Pin B1) | Noninverting input | Compares against IN−; accepts voltages from VEE − 0.2V to VCC + 0.2V - usable for ground-referenced or supply-referenced sensing. |
| IN− (Pin B3) | Inverting input | Reference input node; same voltage range as IN+; used with internal hysteresis band centered on VOS. |
| OUT (Pin A2) | Push-pull CMOS output | Sinks and sources up to ±5mA; swings rail-to-rail (VEE to VCC); no external pull-up required. |
Key Features
| Feature | Design Value |
|---|---|
| Beyond-the-Rails™ inputs | Enables direct measurement of signals below ground or above VCC - critical for battery cathode/anode monitoring without level-shifting. |
| Crowbar-current-free switching | Eliminates supply current spikes during output transitions - reduces need for large bypass capacitors and extends battery life. |
| Internal 4mV hysteresis | Prevents output oscillation on slow-moving or noisy inputs - removes need for external hysteresis resistors in most battery-monitoring designs. |
| 0.6µA ultra-low supply current | Supports multi-year operation on coin cells or AA/AAA batteries - validated in datasheet Table 1 for 2-cell alkaline (2.8×10⁶ hr). |
| Rail-to-rail push-pull output | Drives logic inputs, LEDs, or MOSFET gates directly - avoids external level translators or pull-up networks in low-power systems. |
Applications
| 2-Cell Battery Monitoring | Ultra-Low-Power Telemetry |
|---|---|
|
Use Scenario: Monitoring voltage of two-series alkaline or NiMH cells to trigger low-battery shutdown before deep discharge. IC Role / Device Role / Timing Role: Comparator compares cell voltage against fixed or resistor-divided threshold; internal hysteresis prevents chatter near cutoff. Use Value: 0.6µA quiescent current enables >320 years of standby monitoring on 2000mAh AA pair (per datasheet Table 1). |
Use Scenario: Wake-up trigger in remote sensor nodes powered by primary lithium batteries, activated when supply drops below safe operating voltage. IC Role / Device Role / Timing Role: Acts as supply supervisor; OUT drives MCU reset or interrupt pin; operates down to +1.8V with no external bias. Use Value: Beyond-the-Rails™ inputs allow direct sensing of VCC relative to ground - no divider or regulator needed, saving board space and leakage. |
| Ground-Referenced Sensing | Medical Instrument Threshold Detection |
|
Use Scenario: Detecting zero-crossing or threshold breach in biomedical signal paths (e.g., ECG lead-off, pulse oximetry LED current monitoring). IC Role / Device Role / Timing Role: Comparator with IN− tied to ground and IN+ receiving analog signal; push-pull output interfaces directly to microcontroller GPIO. Use Value: Input range extending 200mV below ground allows robust detection even with small-signal offsets or PCB trace coupling. |
Use Scenario: Low-power patient-worn devices requiring precise, stable trip points for safety-critical alerts (e.g., battery undervoltage, sensor disconnect). IC Role / Device Role / Timing Role: Threshold detector with 5mV max offset and 4mV hysteresis - ensures repeatable, noise-immune triggering across -40°C to +85°C. Use Value: 40ppm/°C reference stability (shared with MAX9025 family) and no phase reversal guarantee deterministic behavior in life-critical applications. |
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 integrated 1.236V ±1% reference; 1.0µA supply current; same UCSP-6 package and pinout. | Used where a precision internal reference simplifies threshold generation (e.g., single-supply battery monitor with fixed 2.4V cutoff). | Select MAX9025EBT+T when reference integration reduces component count; accept +0.4µA current penalty and +0.4V minimum reference headroom. |
| TLV3691IDCKR | 0.55µA supply current; rail-to-rail I/O; open-drain output; SOT-23-5 package; no internal reference. | Requires external pull-up; better suited for mixed-voltage logic interfacing (e.g., 3.3V comparator driving 1.8V MCU input). | Choose TLV3691IDCKR for lowest possible current or open-drain flexibility; verify layout accommodates larger SOT-23 footprint vs. UCSP. |
Compared with MAX9025EBT+T, the MAX9027EBT+T trades reference integration for lower supply current and simpler biasing; versus TLV3691IDCKR, it offers push-pull output and smaller UCSP footprint but requires careful handling of bump-package assembly.
Availability
MAX9027EBT+T is available at Aetrix Electronics and suitable for 2-cell battery monitoring, ultra-low-power telemetry, and medical instrument threshold detection requiring stable component supply across industrial temperature range (-40°C to +85°C).
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 interface applications in industrial, medical, and portable systems.
The MAX9025–MAX9028 family was engineered specifically for nanopower battery monitoring and sensing in space-constrained, long-life portable equipment - emphasizing sub-1µA operation, rail-exceeding inputs, and glitch-free switching.
FAQ
What is the maximum supply voltage for the MAX9027EBT+T?
The MAX9027EBT+T has an absolute maximum supply voltage (VCC to VEE) of +6V. Its recommended operating range is +1.8V to +5.5V, as specified in the Electrical Characteristics table. Operation above +5.5V risks permanent damage and is not guaranteed for functionality or reliability.
Does the MAX9027EBT+T have an internal voltage reference?
No, the MAX9027EBT+T does not include an internal voltage reference. It belongs to the "without reference" variant of the MAX9025–MAX9028 family. Only MAX9025EBT+T and MAX9026EBT+T integrate the 1.236V ±1% reference; the MAX9027EBT+T relies on external threshold generation.
What is the output configuration of the MAX9027EBT+T?
The MAX9027EBT+T features a CMOS push-pull output stage capable of both sourcing and sinking up to ±5mA. This eliminates the need for external pull-up resistors and enables direct interfacing with logic inputs, LEDs, or gate drivers - unlike the open-drain MAX9028EBT+T.
Can the MAX9027EBT+T sense voltages below ground?
Yes, the MAX9027EBT+T supports input voltages as low as VEE − 0.2V. With VEE = 0V (ground), IN+ and IN− accept signals down to −0.2V - enabling true ground-referenced or negative-swing sensing in battery cathode monitoring or zero-crossing detection.
What package type is used for the MAX9027EBT+T?
The MAX9027EBT+T is packaged in a 6-bump UCSP (Ultra Compact Silicon Package) measuring 1.0mm × 1.52mm, with solder bumps on the bottom side. The "+T" suffix denotes tape-and-reel packaging; the "+" indicates RoHS-compliant, lead(Pb)-free construction.
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:
- Active
- 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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