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Analog Devices Inc./Maxim Integrated MAX961EUA-T
- Part No.:
- MAX961EUA-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX961EUA-T.pdf
- Description:
- IC COMPARATOR 1 GEN PUR 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:3,837
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Product details
Overview
The MAX961EUA-T from Maxim Integrated is a single ultra-high-speed comparator with internal hysteresis, optimized for +3V or +5V single-supply operation. It features 4.5ns propagation delay (5mV overdrive), ±3.5mV input-referred hysteresis, Beyond-the-Rails™ input range (–0.1V to VCC + 0.1V), and TTL/CMOS-compatible complementary outputs with latch-enable functionality - used in GPS receivers, high-speed sampling circuits, and threshold detection in portable systems.
For engineers reviewing the MAX961EUA-T datasheet, MAX961EUA-T pinout, MAX961EUA-T application, or MAX961EUA-T equivalent, key selection criteria include propagation delay vs. overdrive, latch timing constraints (tSU/tH/tLPW), shutdown current (270µA), rail-to-rail input capability, and µMAX® package thermal performance (330mW at +70°C).
Technical Context
This comparator employs a current-driven output stage enabling fast slew rates and guaranteed VOH/VOL within 0.52V of rails without external pull-ups. Its internal 3.5mV hysteresis eliminates need for external feedback resistors while preventing oscillation near trip points.
The device integrates latch-enable logic with precise timing specs (5ns setup/hold, 10ns latch propagation) and shutdown control (150ns turn-off, 250ns wake-up). Input protection includes dual 200Ω series resistors and back-to-back diode clamps limiting differential voltage to ≤2.1V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 4.5ns typical at 5mV overdrive - enables sub-5ns decision latency in time-critical sampling paths |
| Supply Voltage Range | +2.7V to +5.5V - supports direct interface with 3.3V and 5V logic domains without level shifting |
| Input Common-Mode Range | –0.1V to VCC + 0.1V - accepts signals beyond supply rails, simplifying sensor interface in battery-powered systems |
| Output Drive Capability | Sinks/sources 4mA to within 0.52V of GND/VCC - directly drives TTL/CMOS loads without external buffers |
| Shutdown Current | 270µA per comparator - reduces system power by >94% during idle periods in portable equipment |
| Input Hysteresis | 3.5mV typical - prevents chatter on slow or noisy inputs without external resistor networks |
| Latch Timing | tSU/tH/tLPW = 5ns each - enables precise capture of transient events synchronized to external clocks |
Pinout & Package
MAX961EUA-T is housed in an 8-pin µMAX® package (package code U8-1), measuring 3mm × 3mm × 0.8mm with exposed pad for thermal enhancement. The µMAX footprint (land pattern 90-0092) supports high-density PCB layouts and provides better thermal dissipation than SO-8 (derating 4.10mW/°C above +70°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | N.C. | No internal connection - must be left floating or tied to GND per layout guidelines to prevent parasitic coupling |
| 2 | IN− | Inverting input - accepts signals up to –0.1V or VCC + 0.1V; protected by 200Ω series resistor and clamp diodes |
| 3 | IN+ | Noninverting input - same rail-beyond range and protection as IN−; differential input impedance is 8kΩ |
| 4 | GND | Analog/digital ground reference - requires low-inductance plane connection for stable high-speed operation |
| 5 | Q | True TTL/CMOS output - sinks 4mA to 0.52V or sources 4mA to VCC − 0.52V; complements Q̅ on Pin 6 |
| 6 | Q̅ | Complementary output - provides inverted logic state simultaneously with Q; enables differential signaling |
| 7 | VCC | Positive supply - must be decoupled with 0.1µF ceramic capacitor placed adjacent to pin |
| 8 | LE | Latch-enable input - high-impedance CMOS control; latches Q/Q̅ when high, transparent when low |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-fast propagation delay | 4.5ns typical ensures minimal timing uncertainty in high-frequency sampling and clock recovery |
| Internal hysteresis | 3.5mV fixed value eliminates external resistor network, reducing BOM count and board area |
| Complementary outputs with latch | Simultaneous Q/Q̅ plus LE control enables glitch-free capture of analog thresholds in digital systems |
| Beyond-the-Rails input range | –0.1V to VCC + 0.1V allows direct connection to sensors or transducers operating outside supply domain |
| Low-power shutdown mode | 270µA per comparator extends battery life in intermittent-sensing applications like wearables |
Applications
| GPS Receivers | High-Speed Sampling Circuits |
|---|---|
Use Scenario: Converting weak, noise-prone RF baseband signals into clean digital pulses for correlation and timing acquisition. IC Role / Device Role / Timing Role: Threshold detector with latch function captures zero-crossing events synchronized to local oscillator clock edges. Use Value: 4.5ns propagation delay and 5ns latch timing enable sub-10ns timing resolution critical for pseudorange calculation accuracy. | Use Scenario: Digitizing analog waveforms in oscilloscopes or data acquisition systems operating at >100MSPS. IC Role / Device Role / Timing Role: High-speed comparator generating strobe signals that trigger ADC sampling windows with minimal jitter. Use Value: 0.3ns propagation skew between Q and Q̅ outputs ensures matched edge timing for differential sampling architectures. |
| Portable/Battery-Powered Systems | Threshold Detectors/Discriminators |
Use Scenario: Monitoring battery voltage, temperature, or sensor outputs in handheld medical devices or IoT edge nodes. IC Role / Device Role / Timing Role: Low-voltage comparator with shutdown control manages power sequencing and alert generation. Use Value: 270µA shutdown current and +2.7V minimum supply allow operation down to single-cell Li-ion (3.0V nominal) with extended standby life. | Use Scenario: Detecting fault conditions such as overvoltage, overcurrent, or signal loss in industrial control modules. IC Role / Device Role / Timing Role: Precision discriminator with internal hysteresis rejects noise-induced false triggers in electrically noisy environments. Use Value: ±3.5mV hysteresis and ±1.5mV input offset ensure reliable switching at mV-level thresholds without external tuning. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX961ESA | Same electrical specs but in 8-pin SO package (S8-2); higher thermal resistance (5.88mW/°C derating) | Preferred for through-hole prototyping or legacy SO-8 footprints; less suitable for space-constrained portable designs | Select MAX961ESA only if board layout mandates SO-8 or requires easier hand-soldering; µMAX offers superior density and thermal performance |
| TLV3501CDR | 4.5ns delay, 2.7–5.5V supply, but no latch-enable or complementary outputs; 6-pin SOT-23 package | Used where single-ended output suffices and latch functionality is unnecessary - e.g., simple window comparators | Choose TLV3501CDR for cost-sensitive, non-latching applications; MAX961EUA-T remains optimal when latch synchronization or differential outputs are required |
Compared with MAX961ESA and TLV3501CDR, the MAX961EUA-T uniquely combines ultra-low propagation delay, integrated latch control, complementary outputs, and µMAX packaging - making it the only option among the three supporting simultaneous event capture and noise-immune threshold detection in compact, battery-operated systems.
Availability
MAX961EUA-T is available at Aetrix Electronics and suitable for GPS receivers, high-speed sampling circuits, and portable/battery-powered systems requiring stable component supply across industrial temperature ranges (–40°C to +85°C).
Supply support for MAX961EUA-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, mixed-signal, and high-speed ICs for demanding industrial, communications, and consumer applications.
The MAX961EUA-T belongs to Maxim's ultra-high-speed comparator family engineered for sub-5ns decision latency, rail-beyond input operation, and low-power shutdown - targeting portable instrumentation, test equipment, and timing-critical signal conditioning.
FAQ
What is the operating temperature range for the MAX961EUA-T?
The MAX961EUA-T is specified for operation from –40°C to +85°C (E grade). This range is fully characterized and guaranteed across all electrical parameters including propagation delay, input offset voltage, and supply current. The µMAX package's thermal characteristics support reliable performance in enclosed portable enclosures without forced airflow.
Does the MAX961EUA-T require external pull-up resistors on its outputs?
No, the MAX961EUA-T does not require external pull-up resistors. Its current-driven output stage guarantees VOH within 0.52V of VCC and VOL within 0.52V of GND while sinking or sourcing 4mA - fully compatible with TTL and CMOS logic families across its entire supply range (+2.7V to +5.5V).
How does the latch-enable function work on the MAX961EUA-T?
The LE pin on the MAX961EUA-T controls a transparent latch: when LE is low, Q and Q̅ follow the comparator's input state in real time; when LE goes high, the current output state is held until LE returns low. Timing requirements include 5ns setup/hold and 10ns latch propagation delay - all verified across temperature and supply voltage.
What is the maximum capacitive load the MAX961EUA-T can drive while maintaining 4.5ns propagation delay?
The MAX961EUA-T maintains its 4.5ns typical propagation delay with a 5pF load (per datasheet test condition). As capacitive load increases, delay rises linearly - e.g., ~6ns at 20pF. For designs requiring consistent sub-5ns latency, keep total node capacitance ≤10pF using short traces and minimal parallel termination.
Can the MAX961EUA-T operate from a 3.3V supply and interface directly with 1.8V logic?
The MAX961EUA-T operates from +2.7V to +5.5V and produces TTL/CMOS-compatible outputs, but its VOH minimum is VCC − 0.52V. At 3.3V supply, VOH ≥ 2.78V - sufficient for 3.3V logic but not guaranteed for 1.8V inputs. For 1.8V logic interfacing, use a level translator or select a comparator with LVCMOS output specification.
MAX961EUA-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Series:
- Beyond-the-Rails™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- General Purpose
- Number of Elements:
- 1
- Output Type:
- CMOS, Complementary, TTL
- Voltage - Supply, Single/Dual (±):
- 2.7V ~ 5.5V
- :
- 1.5mV @ 5V
- Voltage - Input Offset (Max):
- 15µA @ 5V
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 11mA
- Current - Quiescent (Max):
- 80dB CMRR, 86.02dB PSRR
- CMRR, PSRR (Typ):
- 7ns
- Propagation Delay (Max):
- 3.5mV
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-uMAX/uSOP
MAX961EUA-T FAQ
1.How can I place an order for MAX961EUA-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX961EUA-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 MAX961EUA-T reliable?
The price and inventory of MAX961EUA-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX961EUA-T is usually 5 days.
3.What payment methods are accepted for MAX961EUA-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX961EUA-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX961EUA-T?
MAX961EUA-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX961EUA-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 MAX961EUA-T?
For technical support, including MAX961EUA-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX961EUA-T requirements.
6.How does Aetrix verify that MAX961EUA-T is sourced from the original manufacturer or authorized distributors?
All MAX961EUA-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 MAX961EUA-T meets industry standards.
7.What is the process for return or replacement of MAX961EUA-T?
All MAX961EUA-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX961EUA-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 MAX961EUA-T part is unused and in its original packaging.
Return procedure for MAX961EUA-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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