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Analog Devices Inc./Maxim Integrated MAX961EUA
- Part No.:
- MAX961EUA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX961EUA.pdf
- Description:
- IC COMPARATOR 1 GEN PUR 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:2,745
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Product details
Overview
MAX961EUA from Maxim Integrated is a single ultra-high-speed comparator with internal hysteresis, optimized for +3V/+5V single-supply operation. It features 4.5ns propagation delay (5mV overdrive), ±3.5mV input-referred hysteresis, and Beyond-the-Rails™ input range extending 100mV beyond both rails - enabling robust threshold detection in portable GPS receivers and high-speed sampling circuits.
For engineers reviewing the MAX961EUA datasheet, MAX961EUA pinout, MAX961EUA application, or MAX961EUA equivalent, key selection criteria include latch-enable functionality, shutdown mode (270µA per comparator), TTL/CMOS-compatible complementary outputs, and µMAX® 8-pin package compatibility with space-constrained battery-powered systems.
Technical Context
The MAX961EUA implements a current-driven output stage delivering 4mA sink/source capability while maintaining VOH ≤ VCC − 0.52V and VOL ≥ 0.52V across its full operating temperature range (−40°C to +85°C). Its internal 3.5mV hysteresis eliminates external feedback resistors and prevents oscillation near trip points.
It integrates latch-enable (LE) logic with 5ns setup/hold timing and 10ns latch propagation delay, allowing synchronous capture of comparator decisions. Shutdown control (SHDN) places outputs in high-impedance state and reduces supply current to 270µA per comparator - critical for low-power wake-up architectures.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 4.5ns typical at 5mV overdrive - enables sub-220MHz sampling decision rates |
| Supply Voltage Range | +2.7V to +5.5V - supports direct interface with 3.3V and 5V logic domains |
| Input Common-Mode Range | −0.1V to VCC + 0.1V - allows detection of signals below GND or above VCC without level shifting |
| Output Drive Capability | Sinks or sources 4mA to within 0.52V of GND/VCC - eliminates need for external pull-ups/pull-downs |
| Hysteresis | 3.5mV input-referred - ensures clean switching without external hysteresis network |
| Shutdown Current | 270µA per comparator - extends battery life in intermittent-sensing applications |
| Operating Temperature | −40°C to +85°C - qualified for industrial and automotive under-hood environments |
Pinout & Package
MAX961EUA is housed in an 8-pin µMAX® package (package code U8-1), measuring 3mm × 3mm with exposed pad for thermal enhancement. The package is RoHS-compliant and rated for surface-mount reflow assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | N.C. | No internal connection - must be left floating or tied to GND per layout guidelines |
| 2 | IN− | Inverting input - accepts signals up to 100mV beyond rails; differential clamp protects against >2.1V input stress |
| 3 | IN+ | Noninverting input - same rail-to-rail common-mode capability as IN−; matched bias current minimizes offset drift |
| 4 | GND | Analog/digital ground reference - requires low-inductance plane connection to minimize noise coupling |
| 5 | Q | True TTL/CMOS-compatible output - drives logic loads directly; slew rate limited by capacitive load |
| 6 | Q̅ | Complementary output - provides inverted logic state; enables differential signaling or latch-enable synchronization |
| 7 | SHDN | Active-high shutdown enable - high-impedance output state and 270µA quiescent current when asserted |
| 8 | VCC | Positive supply input - decoupling capacitor (0.1µF ceramic) required adjacent to pin for stable high-speed operation |
Key Features
| Feature | Design Value |
|---|---|
| Latch-enable (LE) input | Enables synchronous capture of comparator output with 5ns setup/hold timing - critical for time-critical event logging |
| Beyond-the-Rails™ inputs | Accepts −0.1V to VCC+0.1V common-mode voltage - eliminates level-shifter ICs in mixed-voltage sensor interfaces |
| Internal 3.5mV hysteresis | Prevents chatter during slow-moving or noisy input transitions - removes need for external resistor networks |
| TTL/CMOS-compatible outputs | Directly drives standard logic families without external buffering - reduces BOM count and board area |
| Shutdown mode | Reduces ICC to 270µA per comparator and places outputs in high-Z - enables power-gating in multi-channel systems |
Applications
| GPS Receiver Front-End | Portable Threshold Detector |
|---|---|
Use Scenario: Detecting satellite signal zero-crossings in L1-band RF envelope demodulation paths. IC Role / Device Role / Timing Role: High-speed comparator capturing precise edge timing with <4.5ns delay and rail-to-rail input tolerance. Use Value: Enables accurate time-of-arrival measurement without external clamping or level-shifting circuitry. |
Use Scenario: Battery-voltage monitoring in handheld medical devices requiring low-quiescent-current wake-up triggers. IC Role / Device Role / Timing Role: Single-supply comparator with shutdown mode and latch-enable for deterministic low-power sensing. Use Value: Reduces system standby current by >95% versus non-shutdown alternatives while preserving fast response on wake-up. |
| High-Speed Sampling Circuit | Line Receiver Interface |
Use Scenario: Clock-domain crossing in 100+ MSPS data acquisition systems using asynchronous analog triggers. IC Role / Device Role / Timing Role: Ultra-fast comparator generating strobe pulses synchronized via LE input to avoid metastability. Use Value: Guarantees <5ns timing margin between analog event and digital capture clock edge. |
Use Scenario: RS-422/RS-485 receiver termination and differential-to-single-ended conversion in industrial PLC I/O modules. IC Role / Device Role / Timing Role: Rail-to-rail input comparator rejecting common-mode noise while delivering TTL-level output. Use Value: Achieves >60dB CMRR at 50kHz without external filtering components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX961ESA | Same electrical specs but in 8-pin SO package (larger footprint, lower thermal resistance) | Better suited for prototyping or thermally demanding environments where µMAX thermal limits are exceeded | Select MAX961ESA when board-level thermal management prioritizes SO package dissipation over size constraints |
| LMH7322MA | Higher supply current (12mA vs. 7.2mA typ), no latch-enable, no shutdown, but offers dual-channel configuration | Applicable where dual independent comparators are needed without latch/sleep functions | Choose LMH7322MA only if dual-channel operation outweighs MAX961EUA's power savings and latch control |
Compared with MAX961ESA, the MAX961EUA saves 40% board area in space-constrained designs; compared with LMH7322MA, it delivers 77% lower quiescent current and adds latch/shutdown features essential for portable and event-driven systems.
Availability
MAX961EUA is available at Aetrix Electronics and suitable for GPS receivers, portable threshold detectors, and high-speed sampling circuits requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for MAX961EUA 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-speed interface solutions for industrial, communications, and consumer applications.
The MAX961EUA belongs to Maxim's ultra-high-speed comparator family designed specifically for low-voltage, single-supply systems requiring rail-to-rail inputs, latch synchronization, and micropower shutdown - targeting portable instrumentation and timing-critical sensing.
FAQ
What is the maximum operating temperature range for the MAX961EUA?
The MAX961EUA is specified over the industrial temperature range of −40°C to +85°C. All E-grade devices, including the MAX961EUA, undergo 100% production testing at +25°C, with full temperature performance guaranteed by design characterization - not just tested - across the entire −40°C to +85°C range.
Does the MAX961EUA require external hysteresis resistors?
No, the MAX961EUA includes 3.5mV of internal input-referred hysteresis, eliminating the need for external feedback resistors. This built-in hysteresis prevents oscillation during slow or noisy input transitions and ensures clean output switching without additional components - a key advantage over generic comparators like LM393 or TLV3501.
Can the MAX961EUA operate from a 3.3V supply?
Yes, the MAX961EUA operates from +2.7V to +5.5V, making it fully compatible with 3.3V systems. At VCC = 3.3V, it maintains 4.5ns typical propagation delay, rail-to-rail input range (−0.1V to +3.4V), and output drive capability sinking or sourcing 4mA to within 0.52V of either rail - ensuring reliable interfacing with 3.3V logic families.
How does the latch-enable function work on the MAX961EUA?
The MAX961EUA's latch-enable (LE) input controls transparent vs. latched operation: when LE is low, the comparator output follows input changes in real time; when LE is pulled high, the current output state is held regardless of subsequent input transitions. Timing parameters - 5ns setup/hold and 10ns latch propagation - are guaranteed across temperature and supply voltage.
What package type is used for the MAX961EUA?
The MAX961EUA uses the 8-pin µMAX® package (package code U8-1), a 3mm × 3mm surface-mount package with exposed thermal pad. It is distinct from the SO-8 version (MAX961ESA) and offers superior board-area efficiency while maintaining identical electrical performance - ideal for compact portable electronics and high-density PCB layouts.
MAX961EUA 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:
- Tube
- 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 FAQ
1.How can I place an order for MAX961EUA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX961EUA 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 reliable?
The price and inventory of MAX961EUA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX961EUA is usually 5 days.
3.What payment methods are accepted for MAX961EUA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX961EUA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX961EUA?
MAX961EUA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX961EUA 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?
For technical support, including MAX961EUA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX961EUA requirements.
6.How does Aetrix verify that MAX961EUA is sourced from the original manufacturer or authorized distributors?
All MAX961EUA 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 meets industry standards.
7.What is the process for return or replacement of MAX961EUA?
All MAX961EUA units undergo pre-shipment inspection (PSI). If there is an issue with MAX961EUA, 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 part is unused and in its original packaging.
Return procedure for MAX961EUA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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