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Analog Devices Inc./Maxim Integrated MAX988EUK+T
- Part No.:
- MAX988EUK+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX988EUK+T.pdf
- Description:
- IC COMPARATOR 1 GEN PUR SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,736
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Product details
Overview
MAX988EUK+T from Maxim Integrated is a single-channel micropower comparator with open-drain output, rail-to-rail inputs and outputs, 120ns propagation delay, 48μA quiescent supply current, and operation from +2.5V to +5.5V single supply - ideal for battery-powered level translation and threshold detection in portable instrumentation.
For engineers reviewing the MAX988EUK+T datasheet, MAX988EUK+T pinout, MAX988EUK+T application, or MAX988EUK+T equivalent, key selection criteria include its open-drain output capable of pulling up to 6V above VEE, ±2.5mV internal hysteresis, rail-to-rail input range extending 250mV beyond supplies, and SC70-5 package compatibility with space-constrained PCB layouts.
Technical Context
The MAX988EUK+T implements a precision analog comparator core with input bias current as low as 1.0pA and input offset voltage of ±0.5mV (typ), enabling accurate sensing near supply rails. Its common-mode input range spans VEE − 0.25V to VCC + 0.25V, supporting overvoltage-tolerant signal conditioning without phase reversal.
Its open-drain output stage allows interface across voltage domains: it sinks current while permitting external pull-up to voltages up to 6V above VEE, making it suitable for bipolar-to-single-ended conversion and logic-level translation between 3V and 5V systems without level-shifter ICs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.5V to +5.5V single supply - supports direct integration into 3V and 5V embedded systems without regulation. |
| Propagation Delay | 120ns at 100mV overdrive - enables high-speed zero-crossing and window detection in real-time signal chains. |
| Quiescent Current | 48μA per comparator - extends battery life in always-on sensor nodes and portable medical devices. |
| Input Offset Voltage | ±0.5mV (typ) - ensures sub-millivolt threshold accuracy for precision voltage monitoring applications. |
| Input Bias Current | 1.0pA (typ) - minimizes loading error on high-impedance sources such as photodiode amplifiers or RC timing networks. |
| Output Stage | Open-drain - allows flexible pull-up to any voltage ≤6V above VEE, enabling bidirectional logic translation (e.g., 5V→3V or 3V→5V). |
| Common-Mode Range | VEE − 0.25V to VCC + 0.25V - accepts inputs beyond supply rails, simplifying design of ground-referenced or floating-sense circuits. |
Pinout & Package
The MAX988EUK+T is housed in a 5-pin SC70-5 package (package code X5-1), measuring 2.0mm × 1.25mm × 0.95mm, optimized for ultra-compact PCB layouts in wearables and IoT edge sensors.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT | Open-drain output | Sinks current only; requires external pull-up resistor to define logic-high level and voltage domain. |
| 2 - VCC | Positive supply | Accepts +2.5V to +5.5V; powers internal circuitry and sets upper rail for input common-mode range. |
| 3 - IN+ | Noninverting input | Differential input node with rail-to-rail capability and 1.0pA bias current - suitable for high-Z reference comparison. |
| 4 - IN− | Inverting input | Differential input node matching IN+; supports overvoltage tolerance up to ±0.3V beyond rails without phase reversal. |
| 5 - VEE | Negative supply / ground | Typically connected to GND in single-supply operation; defines lower reference for input/output swing and absolute maximum ratings. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O with extended common-mode range | Inputs operate from VEE − 0.25V to VCC + 0.25V, enabling direct sensing of signals referenced to ground or supply rails without attenuation. |
| Internal hysteresis | ±2.5mV built-in hysteresis prevents chatter on slow-moving or noisy inputs - eliminates need for external feedback resistors in basic threshold detection. |
| Low switching current surge | Unique output architecture limits supply-current transients during state transitions, reducing power-supply noise and eliminating need for large local decoupling capacitors. |
| Overvoltage-tolerant inputs | Input pins withstand ±20mA transient current and tolerate voltages up to 0.3V beyond rails - enhances robustness in industrial and automotive sensor interfaces. |
| SC70-5 footprint compatibility | Matches industry-standard 5-pin SC70 layout (JEDEC MO-203AA), enabling drop-in replacement with other ultra-small comparators in automated SMT assembly. |
Applications
| Level Translation | Threshold Detection |
|---|---|
Use Scenario: Converting 5V microcontroller GPIO outputs to interface with 3V logic inputs in mixed-voltage systems. IC Role / Device Role / Timing Role: Open-drain comparator acting as bidirectional voltage-level translator with no active logic inversion. Use Value: Eliminates discrete MOSFET translators; supports clean 5V→3V and 3V→5V translation using a single pull-up resistor per channel. | Use Scenario: Monitoring battery voltage to trigger low-power mode when cell voltage drops below 3.2V. IC Role / Device Role / Timing Role: Precision threshold detector comparing battery voltage against a stable reference (e.g., 1.22V bandgap via resistor divider). Use Value: 48μA quiescent current and ±0.5mV offset ensure long-term accuracy and minimal impact on battery runtime. |
| Zero-Crossing Detection | Ground/Supply Sensing |
Use Scenario: Detecting AC line zero crossings in energy metering or TRIAC control circuits. IC Role / Device Role / Timing Role: High-speed comparator with rail-to-rail inputs directly comparing AC waveform to ground reference. Use Value: 120ns propagation delay and no phase reversal under overdrive enable reliable timing capture within 1% of true zero crossing. | Use Scenario: Monitoring system supply rail integrity by detecting undervoltage conditions on a 3.3V LDO output. IC Role / Device Role / Timing Role: Rail-to-rail input comparator comparing monitored rail to a precision reference voltage. Use Value: Common-mode range extending 250mV beyond rails allows direct connection to 3.3V rail without attenuation or level shifting. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV3701IDBVR | Push-pull output, 360ns propagation delay, 1.8V–5.5V supply, 800nA IB | Lacks open-drain flexibility; unsuitable for multi-voltage domain translation | Select when push-pull drive into CMOS loads is required and level translation is not needed. |
| LMV7215M5X | Open-drain output, 130ns propagation delay, 2.7V–5.5V supply, 1.2pA IB, no guaranteed hysteresis | Requires external hysteresis network for noise immunity; less robust in noisy environments | Select when slightly higher supply voltage minimum is acceptable and internal hysteresis is not critical. |
Compared with TLV3701IDBVR and LMV7215M5X, the MAX988EUK+T uniquely combines open-drain output, guaranteed ±2.5mV hysteresis, sub-1μA input bias, and 120ns speed at 48μA supply current - making it optimal for low-power, multi-rail sensing where reliability and layout simplicity are prioritized.
Availability
MAX988EUK+T is available at Aetrix Electronics and suitable for portable instrumentation, battery-powered sensor nodes, and industrial voltage-monitoring systems requiring stable component supply and long-lifecycle support.
Supply support for MAX988EUK+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 industrial, medical, communications, and consumer applications, emphasizing low-power, high-accuracy performance.
The MAX987/MAX988 family targets ultra-low-power, high-speed comparator applications in space-constrained, battery-operated systems - delivering rail-to-rail operation, nanosecond response, and micropower consumption without sacrificing input precision.
FAQ
What is the maximum allowable voltage on the MAX988EUK+T output pin?
The MAX988EUK+T output pin (OUT) is rated for voltages up to 6V above VEE. When VEE = 0V (ground), this means the output can be pulled up to +6V. This specification enables safe interfacing with higher-voltage logic families or analog circuits without damage, provided the external pull-up resistor limits current to within absolute maximum ratings.
Does the MAX988EUK+T require an external hysteresis network for stable operation?
No - the MAX988EUK+T includes ±2.5mV internal hysteresis, which prevents output oscillation on slow or noisy input signals. This built-in hysteresis eliminates the need for external positive-feedback resistors in most threshold-detection applications, simplifying design and reducing component count. External hysteresis may still be added if wider bands (>5mV) are required.
Can the MAX988EUK+T operate from a 2.7V supply?
Yes - the MAX988EUK+T is fully specified from +2.5V to +5.5V single supply. At VCC = 2.7V, it maintains 48μA typical supply current, 120ns propagation delay (at 100mV overdrive), and rail-to-rail input/output swing. Input common-mode range extends from −0.25V to +2.95V, ensuring reliable operation with low-voltage references and sensors.
What is the input bias current specification for the MAX988EUK+T, and why does it matter?
The MAX988EUK+T has a typical input bias current of 1.0pA. This ultra-low value minimizes voltage error when driving high-impedance sources (e.g., photodiodes, thermistors, or RC timing networks), preserving signal fidelity and measurement accuracy. It also reduces leakage-induced drift in precision threshold detection circuits, especially at elevated temperatures.
Is the MAX988EUK+T pin-compatible with other comparators in the MAX987/MAX988 family?
Yes - the MAX988EUK+T shares identical 5-pin SC70-5 pinout and footprint with the MAX987EXK-T (push-pull version). Both use the same VCC, IN+, IN−, OUT, and VEE assignments. This allows direct functional substitution in existing layouts when switching between open-drain and push-pull output requirements, provided external pull-up is added for MAX988EUK+T.
MAX988EUK+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- SC-74A, SOT-753
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 1
- Output Type:
- CMOS, Open-Drain, Rail-to-Rail, TTL
- Voltage - Supply, Single/Dual (±):
- 2.5V ~ 5.5V, ±1.25V ~ 2.75V
- :
- 5mV @ 5.5V
- Voltage - Input Offset (Max):
- 1pA @ 5.5V
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 96µA
- Current - Quiescent (Max):
- 80dB CMRR, 80dB PSRR
- CMRR, PSRR (Typ):
- 210ns
- Propagation Delay (Max):
- ±2.5mV
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- SOT-23-5
MAX988EUK+T FAQ
1.How can I place an order for MAX988EUK+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX988EUK+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 MAX988EUK+T reliable?
The price and inventory of MAX988EUK+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX988EUK+T is usually 5 days.
3.What payment methods are accepted for MAX988EUK+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX988EUK+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX988EUK+T?
MAX988EUK+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX988EUK+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 MAX988EUK+T?
For technical support, including MAX988EUK+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX988EUK+T requirements.
6.How does Aetrix verify that MAX988EUK+T is sourced from the original manufacturer or authorized distributors?
All MAX988EUK+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 MAX988EUK+T meets industry standards.
7.What is the process for return or replacement of MAX988EUK+T?
All MAX988EUK+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX988EUK+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 MAX988EUK+T part is unused and in its original packaging.
Return procedure for MAX988EUK+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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