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Analog Devices Inc./Maxim Integrated MAX999EUK/GG8
- Part No.:
- MAX999EUK/GG8
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- -
- Datasheet:
-
MAX999EUK/GG8.pdf
- Description:
- INTEGRATED CIRCUIT
- Quantity:
- Payment:
- Shipping:
Inventory:3,117
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Product details
Overview
The MAX999EUK/GG8 from Maxim Integrated is a single ultra-high-speed comparator with internal 3.5mV hysteresis, optimized for +3V/+5V single-supply operation, featuring 4.5ns propagation delay (5mV overdrive), Beyond-the-Rails™ input range (–0.1V to VCC+0.1V), and TTL/CMOS-compatible push-pull output capable of sourcing/sinking 4mA within 0.52V of rails - used in GPS receivers and high-speed sampling circuits.
For engineers reviewing the MAX999EUK/GG8 datasheet, MAX999EUK/GG8 pinout, MAX999EUK/GG8 application, or MAX999EUK/GG8 equivalent, key selection considerations include propagation delay vs. overdrive, input-referred hysteresis stability across temperature, rail-to-rail input capability at low supply voltages, and SOT23-5 package constraints for portable system layout.
Technical Context
This comparator uses a current-driven output stage enabling rapid slew rates while maintaining low static output current; its internal hysteresis eliminates external feedback resistors and prevents oscillation near trip points. The input stage incorporates dual 200Ω series resistors and back-to-back diode clamps to limit differential input voltage to ≤2.1V and protect against ±20mA transient currents.
It operates across –40°C to +85°C with guaranteed 4.5ns propagation delay at 5mV overdrive, 5mA supply current per comparator at VCC = 5V, and input offset voltage of ±0.5mV (typ) - all specified under production-tested conditions at +25°C with full temperature range coverage by design.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 4.5ns (typ) at 5mV overdrive - enables sub-5ns timing resolution in high-speed threshold detection |
| Supply Voltage Range | 2.7V to 5.5V - supports direct integration into 3V and 5V logic domains without level shifting |
| Input Common-Mode Range | –0.1V to VCC + 0.1V - allows inputs below GND or above VCC, critical for sensor interfacing |
| Output Drive Capability | Sinks/sources 4mA to within 0.52V of GND/VCC - drives CMOS/TTL loads directly without pull-up resistors |
| Internal Hysteresis | 3.5mV (typ) - ensures clean switching without external components in noisy signal environments |
| Supply Current | 5mA per comparator at VCC = 5V - balances speed and power for battery-sensitive applications |
| Input Offset Voltage | ±0.5mV (typ), ±4.5mV (max) - defines minimum detectable differential voltage at room temperature |
Pinout & Package
The MAX999EUK/GG8 is housed in a RoHS-compliant 5-pin SOT23 package (package code U5+1), with 1.6mm × 1.6mm footprint and 0.95mm height - optimized for space-constrained portable PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | No Connection | Internally unconnected; leave floating or tie to GND per layout best practice |
| 2 | Inverting Input (IN–) | Differential input node accepting signals up to 100mV beyond rails |
| 3 | Noninverting Input (IN+) | Differential input node with identical rail-exceeding capability as IN– |
| 4 | GND | Analog/digital ground reference; requires low-inductance plane connection |
| 5 | VCC | Positive supply input (2.7V–5.5V); must be decoupled with 0.1µF ceramic capacitor |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-fast propagation delay | 4.5ns typ at 5mV overdrive - enables timing-critical zero-crossing and pulse-width detection |
| Beyond-the-Rails™ input range | –0.1V to VCC+0.1V - eliminates need for input biasing networks in single-supply systems |
| TTL/CMOS-compatible output | Push-pull structure sinking/source 4mA - interfaces directly with FPGA I/O, microcontroller GPIO, and logic gates |
| Fixed internal hysteresis | 3.5mV typ - removes external resistor network, reducing BOM count and board area |
| Low-voltage single-supply operation | 2.7V min supply - supports modern low-power SoC and battery-powered GPS front-ends |
Applications
| GPS Receivers | High-Speed Sampling Circuits |
|---|---|
Use Scenario: Converting analog IF or baseband signals from GPS antenna front-end into precise digital timing edges for correlation processing. IC Role / Device Role / Timing Role: Threshold detector generating clean clock-aligned strobes from weak RF-derived signals with minimal jitter. Use Value: 4.5ns propagation delay and 3.5mV hysteresis ensure deterministic edge placement and noise immunity in low-SNR GNSS environments. | Use Scenario: Capturing fast transient events in oscilloscopes, time-of-flight sensors, or laser pulse detection systems. IC Role / Device Role / Timing Role: High-speed sampling trigger generator synchronizing ADC capture windows to input signal transitions. Use Value: Sub-5ns delay and rail-to-rail input capability allow accurate timing of nanosecond-scale pulses without signal conditioning. |
| Portable/Battery-Powered Systems | Zero-Crossing Detectors |
Use Scenario: Monitoring battery voltage thresholds or sensor outputs in handheld medical devices and IoT edge nodes. IC Role / Device Role / Timing Role: Low-power comparator detecting critical voltage levels to initiate sleep/wake or alert states. Use Value: 5mA supply current at 3V and Beyond-the-Rails input enable direct sensing of Li-ion cell voltages (2.5V–4.2V) without resistive dividers. | Use Scenario: Detecting AC line zero crossings for phase-controlled dimmers, motor controllers, and energy metering. IC Role / Device Role / Timing Role: Precision zero-crossing detector with minimized propagation delay skew between rising/falling edges. Use Value: 0.3ns differential propagation delay skew ensures symmetrical timing accuracy for bidirectional AC control applications. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMH7322MA/NOPB | Higher supply current (12mA), no internal hysteresis, dual-channel, SO-8 package | Requires external hysteresis resistors; better suited for multi-channel parallel comparison | Select when dual outputs and higher drive strength outweigh SOT23 size and hysteresis convenience |
| ADCMP600BRJZ-REEL7 | 3.5ns propagation delay, 2.7V–5.5V supply, no internal hysteresis, SOT23-5 package | Lacks integrated hysteresis; requires external feedback network for noise immunity | Choose when absolute minimum delay is critical and board space allows hysteresis resistor placement |
Compared with LMH7322MA/NOPB and ADCMP600BRJZ-REEL7, the MAX999EUK/GG8 uniquely combines SOT23-5 footprint, built-in 3.5mV hysteresis, and 4.5ns delay - eliminating external components while maintaining compactness and noise resilience for single-channel portable designs.
Availability
MAX999EUK/GG8 is available at Aetrix Electronics and suitable for GPS receivers, portable/battery-powered systems, and high-speed sampling circuits requiring stable component supply, long-term lifecycle support, and traceable sourcing for industrial and embedded OEM programs.
Supply support for MAX999EUK/GG8 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 high-performance analog, mixed-signal, and power management ICs for industrial, communications, and consumer applications.
The MAX999 belongs to Maxim's ultra-high-speed comparator family designed specifically for low-voltage, single-supply systems demanding sub-5ns timing precision, rail-exceeding inputs, and minimal external component count.
FAQ
What is the operating temperature range for the MAX999EUK/GG8?
The MAX999EUK/GG8 is rated for –40°C to +85°C (E grade). This range is production-tested at +25°C, with full specification coverage guaranteed by design across the entire range. It does not support the extended –40°C to +125°C range offered by the MAX999AAUK variant.
Does the MAX999EUK/GG8 have shutdown or latch functionality?
No, the MAX999EUK/GG8 lacks both shutdown and latch-enable features. Unlike the MAX961/MAX963/MAX997, it has no SHDN or LE pins. Its pinout consists solely of IN–, IN+, GND, VCC, and NC - making it a dedicated high-speed comparator without power-saving or data-holding capabilities.
What is the input-referred hysteresis value for the MAX999EUK/GG8?
The MAX999EUK/GG8 provides a fixed internal hysteresis of 3.5mV (typical), as confirmed in the Electrical Characteristics table. This value is consistent across temperature and supply voltage and eliminates the need for external hysteresis resistors in threshold-detection applications.
Can the MAX999EUK/GG8 operate from a 2.7V supply?
Yes, the MAX999EUK/GG8 supports supply voltages from 2.7V to 5.5V. At 2.7V, it maintains 4.5ns typical propagation delay and retains full Beyond-the-Rails input capability (–0.1V to 2.8V), making it suitable for modern low-voltage portable systems powered by single-cell Li-ion batteries.
What is the maximum capacitive load the MAX999EUK/GG8 output can drive while maintaining 4.5ns delay?
The MAX999EUK/GG8 is characterized with COUT = 5pF. Propagation delay increases with load capacitance - e.g., delay rises to ~6.5ns at 50pF (per typical curves). For sub-5ns timing integrity, keep total output node capacitance ≤10pF, including PCB trace and scope probe loading.
MAX999EUK/GG8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- -
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- -
- Number of Elements:
- -
- Output Type:
- -
- Voltage - Supply, Single/Dual (±):
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- :
- -
- Voltage - Input Offset (Max):
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- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- -
- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- -
- Propagation Delay (Max):
- -
- Hysteresis:
- -
- Operating Temperature:
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- Grade:
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- Qualification:
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MAX999EUK/GG8 FAQ
1.How can I place an order for MAX999EUK/GG8 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX999EUK/GG8 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 MAX999EUK/GG8 reliable?
The price and inventory of MAX999EUK/GG8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX999EUK/GG8 is usually 5 days.
3.What payment methods are accepted for MAX999EUK/GG8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX999EUK/GG8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX999EUK/GG8?
MAX999EUK/GG8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX999EUK/GG8 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 MAX999EUK/GG8?
For technical support, including MAX999EUK/GG8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX999EUK/GG8 requirements.
6.How does Aetrix verify that MAX999EUK/GG8 is sourced from the original manufacturer or authorized distributors?
All MAX999EUK/GG8 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 MAX999EUK/GG8 meets industry standards.
7.What is the process for return or replacement of MAX999EUK/GG8?
All MAX999EUK/GG8 units undergo pre-shipment inspection (PSI). If there is an issue with MAX999EUK/GG8, 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 MAX999EUK/GG8 part is unused and in its original packaging.
Return procedure for MAX999EUK/GG8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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