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Analog Devices Inc./Maxim Integrated MAX9027EBT+TG05
- Part No.:
- MAX9027EBT+TG05
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- -
- Datasheet:
-
MAX9027EBT+TG05.pdf
- Description:
- MAX9027EBT+TG05
- Quantity:
- Payment:
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Inventory:1,509
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Product details
Overview
MAX9027EBT+TG05 from Maxim Integrated is a nanopower, push-pull output comparator in a 6-bump UCSP package (1mm × 1.52mm), designed for ultra-low-power battery monitoring. It operates from +1.8V to +5.5V, draws only 0.6µA supply current at 1.8V, features Beyond-the-Rails™ inputs (VEE − 0.2V to VCC + 0.2V), and delivers rail-to-rail CMOS output swing with ±5mA drive capability - ideal for 2-cell Li-ion or alkaline battery voltage supervision.
For engineers reviewing the MAX9027EBT+TG05 datasheet, MAX9027EBT+TG05 pinout, MAX9027EBT+TG05 application, or MAX9027EBT+TG05 equivalent, key selection criteria include its guaranteed 0.6µA max supply current at 1.8V, internal 4mV hysteresis, crowbar-current-free switching architecture, and compatibility with space-constrained portable medical instruments and telemetry systems requiring stable low-voltage threshold detection.
Technical Context
The MAX9027EBT+TG05 employs a BiCMOS input stage enabling Beyond-the-Rails operation and sub-nanoampere input bias current (0.15nA typ), while its unique break-before-make push-pull output stage eliminates supply-current surges during transitions - reducing power-supply filtering requirements and extending battery life. Its internal 4mV hysteresis band ensures clean switching even with slow-moving or noisy input signals near threshold.
This device lacks an integrated reference (unlike MAX9025/MAX9026) and relies on external voltage division or sensor outputs for comparison thresholds. Its output stage is optimized for driving capacitive loads up to 15pF with propagation delays of 14µs (high-to-low) and 40µs (low-to-high) at 5V, supporting reliable zero-crossing and logic-level translation functions in mixed-voltage systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8V to 5.5V - supports direct connection to single- or dual-cell batteries without regulation. |
| Supply Current | 0.6µA typ at 5V, 0.75µA max at 1.8V - enables >2.8 million hours of operation on a 2000mAh alkaline battery pair. |
| Input Common-Mode Range | VEE − 0.2V to VCC + 0.2V - allows sensing at ground or supply rail without level-shifting circuitry. |
| Input Offset Voltage | 0.3mV typ, 10mV max over temperature - ensures accurate threshold detection across industrial temperature range (−40°C to +85°C). |
| Output Drive Capability | ±5mA rail-to-rail swing - directly interfaces with microcontroller GPIOs or LED indicators without external buffers. |
| Propagation Delay | 14µs (tPD−) / 40µs (tPD+) at 5V - suitable for sub-50kHz signal monitoring in battery-powered telemetry. |
| Hysteresis | 4mV input-referred - suppresses chatter from noise or slow-slew inputs without external components. |
Pinout & Package
MAX9027EBT+TG05 is housed in a 6-bump wafer-level chip-scale package (UCSP™), measuring 1.0mm × 1.52mm with bumps on bottom. The package is RoHS-compliant and optimized for high-density portable PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC (A1) | Positive supply voltage | Accepts 1.8V–5.5V; bypass capacitor recommended if supply impedance >1Ω. |
| VEE (A3/B2) | Negative supply voltage (ground reference) | Typically connected to system GND; supports true ground-sensing applications. |
| IN+ (B1) | Noninverting input | High-impedance node (IB = 0.15nA typ); accepts voltages beyond rails for direct battery terminal monitoring. |
| IN− (B3) | Inverting input | Same rail-to-rail common-mode range as IN+; used for threshold reference or differential sensing. |
| OUT (A2) | CMOS push-pull output | Sinks and sources up to ±5mA; no external pull-up required; compatible with 1.8V/3.3V/5V logic families. |
| REF (B2) | Not connected / No function | Unused pin - MAX9027 has no internal reference; B2 bump is electrically isolated. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 0.6µA max at 1.8V - reduces standby power by >50% vs. reference-equipped variants (MAX9025/MAX9026). |
| Beyond-the-Rails™ inputs | Operates with inputs 200mV below VEE or above VCC - enables direct connection to battery terminals without resistive dividers. |
| Crowbar-current-free switching | Negligible supply-current surge during output transitions - eliminates need for large local decoupling capacitors in space-constrained designs. |
| Internal 4mV hysteresis | Prevents oscillation on slow or noisy inputs - removes requirement for external positive feedback networks in most battery-monitoring circuits. |
| Rail-to-rail CMOS push-pull output | Drives ±5mA while maintaining full VCC–VEE swing - simplifies interface to MCUs, LEDs, or analog switches without level shifters. |
Applications
| 2-Cell Battery Monitoring | Ultra-Low-Power Telemetry |
|---|---|
Use Scenario: Monitoring voltage of two-series alkaline or NiMH cells in wireless sensor nodes. IC Role / Device Role / Timing Role: Comparator detecting end-of-life threshold (e.g., 1.8V/cell) with hysteresis to prevent false wake-ups. Use Value: 0.6µA supply current extends node lifetime to >320 years on 2000mAh capacity, validated per Table 1 in datasheet. | Use Scenario: Transmitting battery status from remote environmental sensors powered by coin cells. IC Role / Device Role / Timing Role: Threshold detector triggering MCU wake-up only when battery drops below safe operating voltage. Use Value: Beyond-the-Rails inputs allow direct cell-terminal sensing without divider resistors, preserving battery energy and PCB area. |
| Medical Instrument Power Supervision | Zero-Crossing Detection |
Use Scenario: Ensuring regulated power integrity in portable ECG or pulse oximeter devices. IC Role / Device Role / Timing Role: Supervisory comparator verifying main supply remains within 1.8V–5.5V window before enabling analog front-end. Use Value: Guaranteed operation down to +1.8V and −40°C to +85°C rating meets IEC 60601-1 environmental requirements. | Use Scenario: Detecting AC line zero crossings in battery-backed smart meters or energy monitors. IC Role / Device Role / Timing Role: Inverting-input grounded configuration converting sine-wave input into precise digital timing edges. Use Value: 4mV hysteresis and <40µs propagation delay ensure jitter <0.5° at 50Hz, minimizing measurement error in RMS calculations. |
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; consumes 1.0µA supply current. | Used where fixed internal reference eliminates external resistor divider; less suitable for variable-threshold or ratiometric sensing. | Select MAX9025EBT+T when reference stability and simplicity outweigh ultra-low current needs. |
| TLV3691IDCKR | 0.5µA supply current, rail-to-rail I/O, but only 1.8V–5.5V supply range and no Beyond-the-Rails inputs. | Requires input voltage conditioning for battery-terminal sensing; lacks guaranteed operation below 1.8V. | Choose TLV3691IDCKR only if board space permits input scaling and reference is externally provided. |
Compared with MAX9025EBT+T, MAX9027EBT+TG05 saves 40% supply current and enables direct rail-exceeding sensing, while TLV3691IDCKR offers marginally lower current but requires additional components for battery monitoring - making MAX9027EBT+TG05 optimal for minimalist, long-life 2-cell systems.
Availability
MAX9027EBT+TG05 is available at Aetrix Electronics and suitable for 2-cell battery monitoring, ultra-low-power telemetry, and portable medical instrument design requiring stable component supply across extended production lifecycles.
Supply support for MAX9027EBT+TG05 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) is a semiconductor company specializing in precision analog, mixed-signal, and power-management ICs for industrial, medical, and portable applications.
The MAX9025–MAX9028 family was designed specifically for nanopower, rail-exceeding voltage supervision in battery-critical systems - emphasizing minimal quiescent current, guaranteed low-voltage operation, and robust input protection without sacrificing speed or accuracy.
FAQ
What is the maximum supply voltage for MAX9027EBT+TG05?
The absolute maximum supply voltage (VCC to VEE) for MAX9027EBT+TG05 is +6V, but the recommended operating range is +1.8V to +5.5V. Operation outside this range may cause permanent damage. Electrical characteristics are fully specified only between 1.8V and 5.5V, and the device is guaranteed functional down to 1.8V across the full −40°C to +85°C temperature range.
Does MAX9027EBT+TG05 have an internal voltage reference?
No, MAX9027EBT+TG05 does not include an internal voltage reference. Unlike MAX9025/MAX9026, it is explicitly designated as the "without reference" variant in the MAX9025–MAX9028 family. The REF pin (B2) is unconnected and electrically isolated. Users must provide an external reference or use resistor-divided battery voltage for threshold comparison.
What is the input common-mode voltage range of MAX9027EBT+TG05?
The input common-mode voltage range of MAX9027EBT+TG05 extends from VEE − 0.2V to VCC + 0.2V - a feature branded as Beyond-the-Rails™. This allows direct sensing of battery voltages that exceed the supply rails, such as monitoring a 3.6V Li-ion cell while operating from a regulated 3.3V supply, without external level-shifting circuitry.
Can MAX9027EBT+TG05 drive a 5mA load at rail-to-rail swing?
Yes, MAX9027EBT+TG05 is specified to deliver rail-to-rail output swing with loads up to ±5mA. At VCC = 5V and ISINK = 5mA, VOL is guaranteed ≤500mV; at ISOURCE = 5mA, VOH is guaranteed ≤500mV (VCC − VOH). This enables direct interfacing with microcontroller inputs, LEDs, or analog switches without buffer stages.
Is MAX9027EBT+TG05 RoHS-compliant and lead-free?
Yes, MAX9027EBT+TG05 is RoHS-compliant and lead-free. The "+" suffix in the part number denotes compliance with EU RoHS Directive 2011/65/EU. The UCSP package uses lead-free solder bumps and conforms to JEDEC J-STD-020 reflow profiles, with maximum bump temperature rated at +235°C.
MAX9027EBT+TG05 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- -
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- -
- Number of Elements:
- -
- Output Type:
- -
- Voltage - Supply, Single/Dual (±):
- -
- :
- -
- Voltage - Input Offset (Max):
- -
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- -
- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- -
- Propagation Delay (Max):
- -
- Hysteresis:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
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- -
MAX9027EBT+TG05 FAQ
1.How can I place an order for MAX9027EBT+TG05 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX9027EBT+TG05 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+TG05 reliable?
The price and inventory of MAX9027EBT+TG05 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX9027EBT+TG05 is usually 5 days.
3.What payment methods are accepted for MAX9027EBT+TG05?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX9027EBT+TG05 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX9027EBT+TG05?
MAX9027EBT+TG05 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX9027EBT+TG05 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+TG05?
For technical support, including MAX9027EBT+TG05 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX9027EBT+TG05 requirements.
6.How does Aetrix verify that MAX9027EBT+TG05 is sourced from the original manufacturer or authorized distributors?
All MAX9027EBT+TG05 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+TG05 meets industry standards.
7.What is the process for return or replacement of MAX9027EBT+TG05?
All MAX9027EBT+TG05 units undergo pre-shipment inspection (PSI). If there is an issue with MAX9027EBT+TG05, 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+TG05 part is unused and in its original packaging.
Return procedure for MAX9027EBT+TG05:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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