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Analog Devices Inc./Maxim Integrated MAX998EUT+T
- Part No.:
- MAX998EUT+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- SOT-23-6
- Datasheet:
-
MAX998EUT+T.pdf
- Description:
- IC COMPARATOR 1 GEN PUR SOT6
- Quantity:
- Payment:
- Shipping:
Inventory:3,515
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Product details
Overview
MAX998EUT+T from Maxim Integrated is a single, high-speed, low-power comparator optimized for +2.7V to +5.5V single-supply operation in space-constrained systems. It delivers 20ns propagation delay, 225µA supply current per comparator, and rail-to-rail output capability with ground-sensing inputs (–0.2V common-mode range), enabling direct interface with CMOS/TTL logic in battery-powered threshold detection circuits.
For engineers reviewing the MAX998EUT+T datasheet, MAX998EUT+T pinout, MAX998EUT+T application, or MAX998EUT+T equivalent, key selection criteria include shutdown current (1nA), input hysteresis (0.5–4.0mV), propagation-delay skew (2ns), PSRR (63–100dB), and SOT23-6 package compatibility with PCB area-sensitive designs.
Technical Context
The MAX998EUT+T employs a CMOS input stage with –0.2V to (VCC – 1.2V) common-mode input range and push-pull rail-to-rail output architecture. Its internal hysteresis (0.5–4.0mV input-referred) prevents oscillation during slow input transitions without external components.
Shutdown is controlled via the SHDN pin, which places the output in high-impedance state and reduces ICC to 1nA (typical). SHDN logic thresholds scale with VCC (VIH = 0.65×VCC, VIL = 0.2×VCC), supporting mixed-voltage system interfacing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 20ns typical at 50mV overdrive - enables fast response in digital line receivers and IR demodulation. |
| Supply Current | 225µA per comparator - supports multi-year battery life in always-on sensing nodes. |
| Shutdown Current | 1nA typical - allows ultra-low-power sleep mode in portable instrumentation. |
| Input Common-Mode Range | –0.2V to (VCC – 1.2V) - permits ground-referenced signal monitoring without level-shifting. |
| Rail-to-Rail Output | VOH ≥ VCC – 0.4V, VOL ≤ 0.4V at 2mA - directly drives 3.3V/5V CMOS/TTL without pull-ups. |
| Input Offset Voltage | ±2mV max (±3mV over temp) - ensures accurate trip-point stability in precision threshold detectors. |
| Power-Supply Rejection | 63–100dB - maintains trip-point accuracy under noisy or varying supply conditions. |
Pinout & Package
MAX998EUT+T is housed in a RoHS-compliant 6-pin SOT23 package (outline 21-0058, land pattern 90-0175), with 1.3mm × 2.2mm footprint and 0.95mm height - suitable for high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for all internal circuitry and output stage return path. |
| 2 | IN– | Inverting input terminal - accepts signals down to –0.2V for ground-sensing applications. |
| 3 | IN+ | Noninverting input terminal - used with IN– to define comparator decision threshold. |
| 4 | OUT | Push-pull output - drives high/low actively; enters high-Z state during shutdown. |
| 5 | VCC | Positive supply input - operates from 2.7V to 5.5V; powers internal bias and output stage. |
| 6 | SHDN | Active-low shutdown control - must be driven high or tied to VCC for normal operation. |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply operation | 2.7V to 5.5V range eliminates need for dual supplies in portable systems. |
| Internal hysteresis | 0.5–4.0mV input-referred - suppresses noise-induced chatter without external feedback resistors. |
| Rail-to-rail output | No external pull-up required - simplifies interface to 3.3V/5V logic families and reduces BOM count. |
| Ground-sensing inputs | –0.2V common-mode lower limit - enables direct connection to 0V-referenced sensors and transducers. |
| Short-circuit tolerant I/O | Continuous fault tolerance to either rail - improves robustness in industrial and automotive environments. |
Applications
| Battery-Powered Threshold Detection | IR Receiver Front-End |
|---|---|
|
Use Scenario: Monitoring battery voltage against low-charge cutoff threshold in handheld medical devices. IC Role / Device Role / Timing Role: Single comparator comparing battery voltage to precision reference, triggering shutdown before deep discharge. Use Value: 225µA quiescent current extends operational runtime; 20ns delay ensures rapid response to critical voltage drop. |
Use Scenario: Converting modulated infrared photodiode current into clean digital pulses in remote control receivers. IC Role / Device Role / Timing Role: High-speed comparator converting analog IR signal envelope into TTL-compatible logic output. Use Value: Rail-to-rail output directly interfaces with microcontroller GPIO; internal hysteresis rejects ambient light noise. |
| Digital Line Receiver | 3V System Level-Shifting Interface |
|
Use Scenario: Recovering degraded digital signals from long PCB traces or cables in industrial controllers. IC Role / Device Role / Timing Role: Comparator restoring logic levels of attenuated or noisy serial data lines. Use Value: 20ns propagation delay preserves timing margins; ±2mV offset ensures reliable decision threshold across temperature. |
Use Scenario: Interfacing 1.8V sensor outputs to 3.3V microcontroller inputs in IoT edge nodes. IC Role / Device Role / Timing Role: Level translator using resistor-divider input network and rail-to-rail output stage. Use Value: Ground-sensing inputs accept sub-GND signals; shutdown mode (1nA) disables interface during sleep cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed, low-power comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV7215M5X/NOPB | 25ns propagation delay, 1.25mA supply current, no shutdown pin, SC70-5 package. | Lacks shutdown mode and ground-sensing capability; higher power draw limits battery use. | Choose when board space permits larger package and shutdown is unnecessary. |
| TLV3501DBVR | 4.5ns propagation delay, 8.5mA supply current, rail-to-rail input/output, SOT23-6 package. | Higher speed but 38× greater supply current; no internal hysteresis requires external feedback. | Prefer for ultra-fast timing-critical paths where power budget allows. |
Compared with LMV7215M5X/NOPB and TLV3501DBVR, the MAX998EUT+T uniquely balances nanosecond-speed response (20ns), ultra-low active current (225µA), and true 1nA shutdown - making it optimal for compact, battery-operated systems requiring both performance and energy efficiency.
Availability
MAX998EUT+T is available at Aetrix Electronics and suitable for battery-powered systems, IR receivers, digital line receivers, and 3V embedded interfaces requiring stable component supply across production lifecycles.
Supply support for MAX998EUT+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) is a semiconductor company specializing in precision analog, mixed-signal, and high-performance power management ICs for industrial, communications, and consumer applications.
The MAX998EUT+T belongs to Maxim's high-speed comparator product line, designed specifically for single-supply, low-power, space-constrained applications such as portable instrumentation, optical receivers, and threshold-detection subsystems.
FAQ
What is the maximum operating supply voltage for MAX998EUT+T?
The MAX998EUT+T has an absolute maximum supply voltage (VCC) rating of +6V. However, its specified operational range is +2.7V to +5.5V. Operating beyond +5.5V may cause permanent damage or unpredictable behavior, even if within the absolute maximum rating. Always maintain VCC within 2.7V–5.5V for reliable function and guaranteed specifications in the MAX998EUT+T.
Does MAX998EUT+T require external pull-up resistors on its output?
No, the MAX998EUT+T does not require external pull-up resistors. Its push-pull output stage provides rail-to-rail drive capability - VOH ≥ VCC – 0.4V and VOL ≤ 0.4V at 2mA load - allowing direct interface with CMOS and TTL logic families. This eliminates external components and reduces board area, a key advantage of the MAX998EUT+T in compact designs.
How does the shutdown feature of MAX998EUT+T behave electrically?
When the SHDN pin of the MAX998EUT+T is driven low, the device enters shutdown mode: supply current drops to 1nA (typical), the comparator core is disabled, and the OUT pin enters a high-impedance state. The SHDN pin has scalable logic thresholds (VIH = 0.65×VCC, VIL = 0.2×VCC), enabling reliable control from 3.3V or 5V logic even when VCC is as low as 2.7V - a defining behavior of the MAX998EUT+T.
Can MAX998EUT+T accept input voltages below ground?
Yes, the MAX998EUT+T supports input voltages down to –0.2V relative to GND, as confirmed by its common-mode voltage range specification of –0.2V to (VCC – 1.2V). This ground-sensing capability allows direct connection to 0V-referenced sensors, transducers, or signal sources without level-shifting circuitry - a verified design feature of the MAX998EUT+T.
What is the input hysteresis value of MAX998EUT+T and how is it implemented?
The MAX998EUT+T features internal input-referred hysteresis ranging from 0.5mV (min) to 4.0mV (max), as specified in its Electrical Characteristics table. This hysteresis is fixed and monolithic - implemented within the comparator core - eliminating the need for external positive-feedback resistors. It ensures clean, chatter-free switching even with slow-moving or noisy input signals, a consistent characteristic across all units of the MAX998EUT+T.
MAX998EUT+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- SOT-23-6
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 1
- Output Type:
- Push-Pull, Rail-to-Rail
- Voltage - Supply, Single/Dual (±):
- 2.7V ~ 5.5V
- :
- 2mV @ 5V
- Voltage - Input Offset (Max):
- 0.075µA @ 5.5V
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 650µA
- Current - Quiescent (Max):
- 95dB CMRR, 100dB PSRR
- CMRR, PSRR (Typ):
- 28ns
- Propagation Delay (Max):
- 5mV
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- SOT-6
MAX998EUT+T FAQ
1.How can I place an order for MAX998EUT+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX998EUT+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 MAX998EUT+T reliable?
The price and inventory of MAX998EUT+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX998EUT+T is usually 5 days.
3.What payment methods are accepted for MAX998EUT+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX998EUT+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX998EUT+T?
MAX998EUT+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX998EUT+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 MAX998EUT+T?
For technical support, including MAX998EUT+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX998EUT+T requirements.
6.How does Aetrix verify that MAX998EUT+T is sourced from the original manufacturer or authorized distributors?
All MAX998EUT+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 MAX998EUT+T meets industry standards.
7.What is the process for return or replacement of MAX998EUT+T?
All MAX998EUT+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX998EUT+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 MAX998EUT+T part is unused and in its original packaging.
Return procedure for MAX998EUT+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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