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Analog Devices Inc./Maxim Integrated MAX941EUA+TG002
- Part No.:
- MAX941EUA+TG002
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- -
- Datasheet:
-
MAX941EUA+TG002.pdf
- Description:
- INTEGRATED CIRCUIT
- Quantity:
- Payment:
- Shipping:
Inventory:1,048
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Product details
Overview
The MAX941EUA+TG002 from Maxim Integrated is a single high-speed comparator optimized for 3V/5V single-supply systems, featuring rail-to-rail inputs, 80ns propagation delay (5mV overdrive), 350μA supply current per comparator, and internal latch/shutdown functions. It operates from −40°C to +85°C in an 8-pin μMAX package and interfaces directly with CMOS/TTL logic in battery-powered threshold detection and zero-crossing applications.
For engineers reviewing the MAX941EUA+TG002 datasheet, MAX941EUA+TG002 pinout, MAX941EUA+TG002 application, or MAX941EUA+TG002 equivalent, key selection considerations include latch enable timing (tS = 20ns, tH = 30ns), shutdown disable time (10ns), rail-to-rail input range (−0.2V to V+ + 0.2V), and output swing within 0.4V of rails without pullups.
Technical Context
The MAX941EUA+TG002 implements a bipolar process comparator core with fixed internal hysteresis (1mV typical input-referred width), eliminating external resistor networks. Its input stage includes back-to-back diodes and 4.1kΩ series resistors for ±0.3V beyond-rail tolerance and differential clamp at 2.2V.
The output stage is current-driven, delivering 400μA source/sink capability with VOH = V+ − 0.2V (min) and VOL = 0.2V (max) at light load. LATCH and SHDN pins are high-impedance CMOS-compatible inputs with VIH = V+/2 + 0.4V and VIL = V+/2 − 0.4V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 80ns typical at 5mV overdrive - enables sub-12.5MHz sampling in fast threshold detection. |
| Supply Voltage Range | 2.7V to 5.5V - supports direct operation from Li-ion (3.0–4.2V) or regulated 3.3V/5V rails. |
| Input Offset Voltage | 1mV max at +25°C, 5.5mV max over −40°C to +85°C - ensures precise trip-point stability in precision discriminators. |
| Rail-to-Rail Input Range | −0.2V to V+ + 0.2V - allows sensing signals below GND or above V+ without level-shifting circuitry. |
| Output Swing | VOL ≤ 0.4V / VOH ≥ V+ − 0.4V at 4mA - guarantees TTL/CMOS logic compatibility without external pullups. |
| Shutdown Current | 12μA min / 60μA max at V+ = 3V - reduces system standby power in portable devices. |
| Latch Setup/Hold Times | tS = 20ns / tH = 30ns - defines minimum data-valid window before/after LATCH edge for reliable storage. |
Pinout & Package
MAX941EUA+TG002 is housed in an 8-pin μMAX® package (outline 21-0036), measuring 3.0mm × 3.0mm × 0.8mm with exposed pad for thermal enhancement. Pin 1 is top-left corner (notch-marked), pin count proceeds counter-clockwise.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | N.C. | No internal connection - must be left floating or grounded; no routing required. |
| 2 | OUT | Open-drain compatible CMOS/TTL output - sinks up to 4mA, sources 400μA; high-Z in shutdown. |
| 3 | GND | Analog/digital ground reference - requires low-inductance connection to PCB ground plane. |
| 4 | LATCH | High-impedance digital control - latches output when low; transparent when high (VIH ≥ V+/2 + 0.4V). |
| 5 | SHDN | High-impedance digital control - disables comparator and forces output high-Z when low (VIL ≤ V+/2 − 0.4V). |
| 6 | IN− | Inverting input - accepts rail-to-rail common-mode voltage; protected to ±0.3V beyond rails. |
| 7 | IN+ | Noninverting input - identical protection and range as IN−; differential clamp limits VIN+ − VIN− to 2.2V. |
| 8 | V+ | Positive supply - must be decoupled with 0.1μF ceramic capacitor placed <1mm from pin; max 6.5V absolute. |
Key Features
| Feature | Design Value |
|---|---|
| Internal Hysteresis | Fixed 1mV input-referred hysteresis width - eliminates external feedback resistors and associated layout sensitivity. |
| Latch Function | Asynchronous transparent latch with 50ns minimum pulse width - captures and holds comparison result independent of input dynamics. |
| Shutdown Mode | Sub-60μA quiescent current with high-impedance output - enables rapid power gating in duty-cycled sensor interfaces. |
| Rail-to-Rail Inputs | Operates with inputs from −0.2V to V+ + 0.2V - supports ground-referenced, negative-biased, or overvoltage-sense configurations. |
| CMOS/TTL-Compatible Outputs | VOH ≥ V+ − 0.2V / VOL ≤ 0.4V at 400μA - drives standard logic families directly without level translators or pullup resistors. |
Applications
| Threshold Detector | Zero-Crossing Detector |
|---|---|
|
Use Scenario: Monitoring battery voltage against programmable low-voltage cutoff (e.g., 3.0V for Li-ion). IC Role / Device Role / Timing Role: Single comparator comparing DAC-controlled reference against battery sense line; latch holds alarm state until reset. Use Value: 1mV offset and rail-to-rail inputs ensure accurate 3.0V trip point across temperature; shutdown cuts background current during sleep. |
Use Scenario: Detecting AC line zero crossings in isolated SMPS feedback or motor phase control. IC Role / Device Role / Timing Role: High-speed comparator with hysteresis rejecting noise near zero crossing; outputs drive microcontroller interrupt input. Use Value: 80ns propagation delay minimizes phase error; rail-to-rail inputs accept transformer-coupled ±1V signals without biasing. |
| Battery-Powered Line Receiver | Sampling Circuit Trigger |
|
Use Scenario: Receiving RS-232-like differential signals in ultra-low-power IoT node with 3.3V supply. IC Role / Device Role / Timing Role: Single-ended receiver converting attenuated coax signal to clean logic-level pulses; shutdown active between transmissions. Use Value: 350μA supply current extends battery life; output swing to 0.2V/3.1V at 3.3V meets 74LVC1G14 input thresholds reliably. |
Use Scenario: Generating precise sample-enable pulses for ADCs in data acquisition systems. IC Role / Device Role / Timing Role: Comparator detecting analog trigger threshold; latch synchronizes pulse to system clock domain. Use Value: 20ns setup/30ns hold times allow robust capture of fast transients; propagation delay skew <10ns ensures timing repeatability. |
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 |
|---|---|---|---|
| LMV7215MFX/NOPB | 85ns propagation delay, 1.8V–5.5V supply, no latch/shutdown, SOT-23-6 package | Lacks integrated latch and shutdown; requires external hysteresis resistors | Preferred where board space is critical and latch/shutdown not needed; lower cost but higher BOM count. |
| TLV3501CDR | 4.5ns propagation delay, 2.7V–5.5V supply, rail-to-rail inputs, no latch/shutdown, SO-8 package | Higher speed but no power management features; output not guaranteed rail-to-rail at 4mA | Selected for ultra-fast response (<5ns) in oscilloscope front-ends; unsuitable for battery-critical latch-hold use cases. |
Compared with LMV7215MFX/NOPB and TLV3501CDR, the MAX941EUA+TG002 uniquely integrates latch and shutdown in a μMAX package while maintaining 80ns speed and rail-to-rail operation - making it optimal for space-constrained, low-duty-cycle portable systems requiring deterministic state capture and power gating.
Availability
MAX941EUA+TG002 is available at Aetrix Electronics and suitable for battery-powered systems, threshold detectors/discriminators, and zero-crossing detectors requiring stable component supply across industrial temperature ranges.
Supply support for MAX941EUA+TG002 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 power management ICs for industrial, medical, and communications applications.
The MAX941EUA+TG002 belongs to Maxim's high-speed comparator family engineered for low-voltage, low-power, rail-to-rail operation in portable and energy-sensitive systems - emphasizing integration of latch, shutdown, and robust input protection.
FAQ
What is the operating temperature range of the MAX941EUA+TG002?
The MAX941EUA+TG002 is rated for −40°C to +85°C ambient operation, validated across this full range for parameters including propagation delay (80–200ns), input offset voltage (≤5.5mV), and supply current (380–700μA at V+ = 5V). This makes MAX941EUA+TG002 suitable for industrial and automotive under-hood environments where thermal stability is critical.
Does the MAX941EUA+TG002 require external pullup resistors on its output?
No, the MAX941EUA+TG002 output pulls to within 0.2V of GND and V+ − 0.2V at 400μA sink/source, meeting CMOS/TTL logic thresholds directly. External pullups are unnecessary unless driving heavier loads (>4mA) or interfacing with open-drain bus architectures - in which case MAX941EUA+TG002's high-Z shutdown mode remains functional.
How does the internal latch function work in the MAX941EUA+TG002?
The MAX941EUA+TG002 latch is asynchronous and transparent: when LATCH is high, OUT follows comparator decisions in real time; when LATCH goes low, the current output state is held regardless of further input changes. Minimum LATCH pulse width is 50ns, with 20ns setup and 30ns hold times relative to data transitions - all verified in MAX941EUA+TG002 production testing.
What is the maximum supply voltage rating for the MAX941EUA+TG002?
The MAX941EUA+TG002 has an absolute maximum supply voltage (V+ to GND) of +6.5V. Operating outside 2.7V–5.5V violates the specified electrical characteristics - for example, PSRR degrades above 5.5V, and internal protection diodes may conduct. The MAX941EUA+TG002 is designed for 3V/5V systems; sustained operation at 6.5V risks parametric shift or long-term reliability loss.
Can the MAX941EUA+TG002 inputs safely handle voltages beyond the supply rails?
Yes - the MAX941EUA+TG002 input common-mode range extends to −0.3V and V+ + 0.3V per Absolute Maximum Ratings, and the input stage includes back-to-back diodes and 4.1kΩ resistors enabling continuous fault tolerance to either rail. This allows direct connection to signals like transformer-coupled AC lines or sensor outputs biased outside V+/GND - confirmed in MAX941EUA+TG002 characterization across −40°C to +85°C.
MAX941EUA+TG002 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- -
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- -
- Number of Elements:
- -
- Output Type:
- -
- Voltage - Supply, Single/Dual (±):
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- -
- Voltage - Input Offset (Max):
- -
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
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- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- -
- Propagation Delay (Max):
- -
- Hysteresis:
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- Operating Temperature:
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- Grade:
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- Qualification:
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MAX941EUA+TG002 FAQ
1.How can I place an order for MAX941EUA+TG002 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX941EUA+TG002 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 MAX941EUA+TG002 reliable?
The price and inventory of MAX941EUA+TG002 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX941EUA+TG002 is usually 5 days.
3.What payment methods are accepted for MAX941EUA+TG002?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX941EUA+TG002 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX941EUA+TG002?
MAX941EUA+TG002 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX941EUA+TG002 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 MAX941EUA+TG002?
For technical support, including MAX941EUA+TG002 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX941EUA+TG002 requirements.
6.How does Aetrix verify that MAX941EUA+TG002 is sourced from the original manufacturer or authorized distributors?
All MAX941EUA+TG002 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 MAX941EUA+TG002 meets industry standards.
7.What is the process for return or replacement of MAX941EUA+TG002?
All MAX941EUA+TG002 units undergo pre-shipment inspection (PSI). If there is an issue with MAX941EUA+TG002, 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 MAX941EUA+TG002 part is unused and in its original packaging.
Return procedure for MAX941EUA+TG002:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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