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Analog Devices Inc./Maxim Integrated MAX40026ATA/VY+T
- Part No.:
- MAX40026ATA/VY+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
MAX40026ATA/VY+T.pdf
- Description:
- IC COMPARATOR 1 GEN PUR 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,368
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Product details
Overview
MAX40026ATA/VY+T from Maxim Integrated is a single-supply, high-speed LVDS comparator with 280ps typical propagation delay, 1.5mV internal hysteresis, and input common-mode range extending to VDD + 0.1V. It operates from 2.7V to 3.6V over –40°C to +125°C and is AEC-Q100 qualified for automotive time-of-flight distance measurement systems.
For engineers reviewing the MAX40026ATA/VY+T datasheet, MAX40026ATA/VY+T pinout, MAX40026ATA/VY+T application, or MAX40026ATA/VY+T equivalent, this device is selected for ultra-low overdrive dispersion (25ps typ.), precise LVDS output matching (±50mV differential voltage match), and direct FPGA/CPU interface capability in LIDAR receiver chains.
Technical Context
The MAX40026ATA/VY+T implements a fully differential, current-mode LVDS output stage with 3.25mA switched current sources, delivering ±350mV differential swing into a 100Ω load while maintaining 1.23V common-mode voltage independent of supply. Its input stage includes 50Ω series resistors and back-to-back diodes for ±1.4V differential input protection.
Propagation delay skew between complementary outputs is limited to 10ps, and overdrive dispersion remains ≤25ps across 10mV–1V input overdrive-critical for sub-nanosecond timing accuracy in pulsed time-of-flight systems where input slew rates exceed 1V/μs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 280ps typical at 100mV overdrive - enables <330ps minimum pulse width detection in high-speed triggering |
| Overdrive Dispersion | 25ps typical (10mV–1V) - ensures consistent timing across varying signal amplitudes in LIDAR return pulses |
| Input Common-Mode Range | 1.5V to VDD + 0.1V - directly interfaces with MAX40658 TIA output without level-shifting |
| LVDS Output Swing | 247–454mV differential - meets LVDS standard for direct connection to FPGA I/O banks |
| Hysteresis | 1.5mV internal - suppresses noise-induced chatter on slower-rising edges in automotive ambient conditions |
| Supply Voltage | 2.7V to 3.6V - compatible with automotive 3.3V rail with 10% tolerance margin |
| Operating Temperature | –40°C to +125°C - supports under-hood and ADAS sensor module deployment |
Pinout & Package
MAX40026ATA/VY+T uses an 8-pin TDFN (2mm × 2mm) side-wettable package with exposed thermal pad (EP), optimized for automotive reflow and thermal reliability. Pin 1 is OUT–, pins 2–3 are GND, pin 4 is IN–, pin 5 is IN+, pins 6–7 are VCC, pin 8 is OUT+, and EP must be soldered to ground.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT–) | Inverting LVDS output | Logic-low when IN+ > IN–; requires 100Ω termination to OUT+ |
| 2,3 (GND) | Signal and power return | Must be connected together externally; low-inductance ground path critical for LVDS integrity |
| 4 (IN–) | Inverting input | Differential pair input; protected by 50Ω series resistor and clamp diodes |
| 5 (IN+) | Non-inverting input | Differential pair input; same protection as IN–; common-mode range extends beyond VDD |
| 6,7 (VCC) | Positive supply | Must be connected together externally; bypass with 10nF ceramic capacitor near pins |
| 8 (OUT+) | Non-inverting LVDS output | Logic-high when IN+ > IN–; matched skew (<10ps) to OUT– enables clean differential signaling |
| EP | Exposed thermal pad | Thermally and electrically connected to GND; required for AEC-Q100 thermal performance compliance |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 qualification | Validated for automotive temperature range (–40°C to +125°C) and reliability stress testing per Grade 1 requirements |
| Ultra-low overdrive dispersion | 25ps typical across 10mV–1V input overdrive - preserves time-of-flight measurement accuracy regardless of signal amplitude decay |
| LVDS output compatibility | Direct interface to Xilinx Kintex/Virtex and Intel Stratix/Cyclone FPGA LVDS I/O banks without external level shifters |
| Input protection architecture | 50Ω series resistors + back-to-back diodes limit differential input voltage to ≤1.4V - prevents damage from photodiode transient surges |
| Internal hysteresis | 1.5mV fixed threshold offset - eliminates need for external positive feedback network in noisy automotive environments |
Applications
| LIDAR Time-of-Flight Receiver | Automotive Radar Threshold Detection |
|---|---|
Use Scenario: Detecting nanosecond-scale return pulses from laser diodes in solid-state LIDAR modules mounted on autonomous vehicles. IC Role / Device Role / Timing Role: High-speed comparator converting amplified photodiode current (from MAX40658 TIA) into precisely timed LVDS logic pulses for FPGA timestamping. Use Value: 280ps propagation delay and 25ps overdrive dispersion enable centimeter-level distance resolution at 150m range. | Use Scenario: Discriminating weak radar echo signals above noise floor in 77GHz ADAS front radar modules operating in rain or fog. IC Role / Device Role / Timing Role: Threshold detector comparing filtered IF output against reference voltage to trigger object detection interrupts. Use Value: 1.5mV internal hysteresis rejects EMI-induced false triggers while maintaining sensitivity to <5mV differential radar returns. |
| Oscilloscope High-Speed Triggering | Industrial Test Equipment Pulse Discrimination |
Use Scenario: Generating sub-nanosecond trigger events for real-time waveform capture in 10+ GHz sampling oscilloscopes. IC Role / Device Role / Timing Role: Edge-sensitive comparator feeding LVDS-compatible trigger bus to acquisition ASIC with minimal jitter addition. Use Value: 2ps typical jitter and 10ps output skew ensure deterministic trigger alignment across multiple channels. | Use Scenario: Identifying valid pulse signatures in automated optical inspection (AOI) systems scanning PCB solder joints at >1MHz line rate. IC Role / Device Role / Timing Role: High-speed level shifter and pulse former converting analog sensor outputs into clean LVDS logic for FPGA-based pattern matching. Use Value: Input common-mode range up to VDD + 0.1V accepts unbuffered transimpedance amplifier outputs without clamping or attenuation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMH7322MRX/NOPB | 350ps propagation delay; no internal hysteresis; 2.7V–5.5V supply; SOIC-8 package | Not AEC-Q100 qualified; higher power (35mA); lacks LVDS output - requires external line driver | Use only in non-automotive test equipment where board space and timing precision are less constrained |
| ADCMP572BCPZ-REEL7 | 250ps propagation delay; 3.3V-only supply; 16-lead LFCSP; no internal hysteresis | Higher cost; no automotive qualification; differential PECL outputs require level translation for FPGA LVDS inputs | Select when absolute minimum propagation delay is prioritized over hysteresis and automotive compliance |
Compared with LMH7322MRX/NOPB and ADCMP572BCPZ-REEL7, MAX40026ATA/VY+T uniquely combines AEC-Q100 qualification, integrated 1.5mV hysteresis, and native LVDS outputs in a 2mm × 2mm TDFN-reducing BOM count, layout complexity, and system-level jitter in automotive LIDAR timing paths.
Availability
MAX40026ATA/VY+T is available at Aetrix Electronics and suitable for LIDAR time-of-flight receivers, automotive radar threshold detectors, and high-speed oscilloscope trigger subsystems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX40026ATA/VY+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 automotive, industrial, and communications applications, with emphasis on high-performance timing, sensing, and power solutions.
The MAX40026 belongs to Maxim's ultra-high-speed comparator product line, engineered specifically for time-critical photonic and RF sensing systems where sub-nanosecond timing fidelity and automotive-grade reliability are mandatory.
FAQ
What is the guaranteed propagation delay range for MAX40026ATA/VY+T across temperature and voltage?
The MAX40026ATA/VY+T has a typical propagation delay of 280ps at 100mV overdrive, with guaranteed performance of 270ps to 280ps across –40°C to +125°C and 2.7V–3.6V supply. This specification is validated by design and characterization per the official Maxim datasheet Rev 5 (9/2019), not production-tested but 100% verified at +25°C.
Does MAX40026ATA/VY+T require external hysteresis components?
No, MAX40026ATA/VY+T integrates a fixed 1.5mV hysteresis to improve noise immunity in automotive environments. This eliminates the need for external positive feedback resistors, reducing PCB area, component count, and potential stability issues associated with discrete hysteresis networks around the MAX40026ATA/VY+T.
Can MAX40026ATA/VY+T interface directly with Xilinx Ultrascale+ FPGA LVDS inputs?
Yes, MAX40026ATA/VY+T delivers LVDS-compliant differential output (247–454mV swing, 1.125–1.375V common-mode) that meets ANSI/TIA/EIA-644-A specifications. Its 100Ω differential output termination matches standard FPGA LVDS I/O banks, enabling direct connection without level shifters or AC-coupling capacitors for the MAX40026ATA/VY+T.
What is the maximum differential input voltage the MAX40026ATA/VY+T can withstand without damage?
The MAX40026ATA/VY+T input stage includes back-to-back diodes and 50Ω series resistors, limiting survivable differential input voltage to approximately ±1.4V (2 × VF, where VF ≈ 0.7V). Exceeding this may increase input bias current but will not damage the MAX40026ATA/VY+T due to built-in protection circuitry.
Is the exposed pad (EP) on MAX40026ATA/VY+T electrically connected, and how must it be handled?
Yes, the exposed pad (EP) on MAX40026ATA/VY+T is internally connected to GND and must be soldered to a PCB ground plane. Per Maxim's land pattern (90-100070), EP requires ≥90% solder coverage and thermal via stitching to inner ground layers to meet AEC-Q100 thermal resistance specs (θJA = 102°C/W on four-layer board).
MAX40026ATA/VY+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-WFDFN Exposed Pad
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 1
- Output Type:
- Differential, LVDS
- Voltage - Supply, Single/Dual (±):
- 2.7V ~ 3.6V
- :
- 5mV @ 3.3V
- Voltage - Input Offset (Max):
- 10µA @ 3.3V
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 23mA
- Current - Quiescent (Max):
- 80dB CMRR, 80dB PSRR
- CMRR, PSRR (Typ):
- 0.28ns (Typ)
- Propagation Delay (Max):
- 1.5mV
- Hysteresis:
- -40°C ~ 125°C
- Operating Temperature:
- Automotive
- Grade:
- AEC-Q100
- Qualification:
- Surface Mount, Wettable Flank
- :
- 8-TDFN-SW (2x2)
MAX40026ATA/VY+T FAQ
1.How can I place an order for MAX40026ATA/VY+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX40026ATA/VY+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 MAX40026ATA/VY+T reliable?
The price and inventory of MAX40026ATA/VY+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX40026ATA/VY+T is usually 5 days.
3.What payment methods are accepted for MAX40026ATA/VY+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX40026ATA/VY+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX40026ATA/VY+T?
MAX40026ATA/VY+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX40026ATA/VY+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 MAX40026ATA/VY+T?
For technical support, including MAX40026ATA/VY+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX40026ATA/VY+T requirements.
6.How does Aetrix verify that MAX40026ATA/VY+T is sourced from the original manufacturer or authorized distributors?
All MAX40026ATA/VY+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 MAX40026ATA/VY+T meets industry standards.
7.What is the process for return or replacement of MAX40026ATA/VY+T?
All MAX40026ATA/VY+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX40026ATA/VY+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 MAX40026ATA/VY+T part is unused and in its original packaging.
Return procedure for MAX40026ATA/VY+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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