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Analog Devices Inc./Maxim Integrated MAX992EUA+T
- Part No.:
- MAX992EUA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX992EUA+T.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:4,063
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Product details
Overview
MAX992EUA+T from Maxim Integrated is a dual, micropower, rail-to-rail input/output comparator with open-drain outputs, operating from +2.5V to +5.5V single supply or ±1.25V to ±2.75V dual supplies. It delivers 120ns propagation delay, 48μA per comparator quiescent current, and ±2.5mV internal hysteresis - optimized for low-power level translation and zero-crossing detection in portable instrumentation.
For engineers reviewing the MAX992EUA+T datasheet, MAX992EUA+T pinout, MAX992EUA+T application, or MAX992EUA+T equivalent, key selection criteria include open-drain output voltage tolerance up to 6V above VEE, rail-to-rail common-mode range extending 250mV beyond rails, and guaranteed operation across –40°C to +85°C industrial temperature range.
Technical Context
The MAX992EUA+T implements two independent comparators sharing a common VCC and VEE supply pair, each featuring an open-drain output stage capable of sinking current while allowing external pull-up to voltages up to 6V above VEE. Its input stage supports rail-to-rail common-mode voltage (VEE – 0.25V to VCC + 0.25V) and exhibits ultra-low 1.0pA typical input bias current.
Propagation delay remains stable at 120ns (100mV overdrive, CL = 15pF, VCC = 5V) across temperature and supply voltage, and its unique output switching architecture minimizes supply-current surges - reducing power-supply glitches without requiring large decoupling capacitors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.5V to +5.5V single supply or ±1.25V to ±2.75V dual supply - supports both 3V and 5V system integration |
| Quiescent Current | 48μA per comparator at VCC = 2.7V - enables multi-year battery life in always-on sensing nodes |
| Propagation Delay | 120ns at 100mV overdrive, CL = 15pF - ensures precise timing in high-speed threshold detection |
| Input Offset Voltage | ±0.5mV typical (±7mV max) - maintains accuracy in precision window and zero-crossing applications |
| Common-Mode Range | VEE – 0.25V to VCC + 0.25V - allows direct interfacing to sensors operating beyond supply rails |
| Output Stage | Open-drain with 6V absolute max pull-up above VEE - enables robust level translation between disparate logic domains |
| Hysteresis | ±2.5mV internal - prevents chatter on slow-moving or noisy input signals without external components |
Pinout & Package
The MAX992EUA+T is housed in an 8-pin μMAX® package (U8-1), measuring 3.0mm × 3.0mm × 0.8mm with exposed pad for thermal enhancement. This space-constrained, surface-mount package is optimized for high-density portable PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUTA | Open-drain output of Comparator A - requires external pull-up; sinks current only |
| 2 | INA− | Inverting input of Comparator A - accepts rail-to-rail common-mode signals |
| 3 | INA+ | Noninverting input of Comparator A - matched input impedance with INA− |
| 4 | VEE | Negative supply terminal (GND in single-supply mode) - reference for all inputs/outputs |
| 5 | VCC | Positive supply terminal - powers both comparators and internal bias circuitry |
| 6 | INB+ | Noninverting input of Comparator B - electrically isolated from INA+ path |
| 7 | INB− | Inverting input of Comparator B - supports independent differential sensing |
| 8 | OUTB | Open-drain output of Comparator B - independently controllable, same drive capability as OUTA |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O with extended common-mode range | Inputs operate from VEE – 0.25V to VCC + 0.25V; outputs swing fully to rails under 8mA load |
| Ultra-low quiescent current | 48μA per comparator at 2.7V - reduces standby power in battery-critical systems |
| Glitch-free switching architecture | Minimal supply-current surge during transitions - eliminates need for oversized bypass capacitors |
| Internal hysteresis | ±2.5mV fixed hysteresis - ensures clean, chatter-free output even with µV-level noise or slow slew-rate inputs |
| High ESD tolerance | ±2kV HBM - enhances reliability in handling-sensitive portable assembly environments |
Applications
| Portable Battery Monitoring | Industrial Level Translation |
|---|---|
Use Scenario: Real-time monitoring of Li-ion cell voltage against upper/lower thresholds in wearables and medical patches. IC Role / Device Role / Timing Role: Dual comparator performing independent high-side and low-side voltage window detection with open-drain outputs tied to shared microcontroller interrupt lines. Use Value: 48μA total quiescent draw extends battery life >3 years in sleep mode; rail-to-rail inputs directly interface 0–4.2V cell without scaling resistors. |
Use Scenario: Converting 5V UART signals to 3.3V logic levels for MCU peripherals in factory automation gateways. IC Role / Device Role / Timing Role: Single MAX992EUA+T used as dual-channel translator - one comparator for TX, one for RX - with separate pull-ups to 3.3V. Use Value: Open-drain outputs tolerate 5V input swings while safely driving 3.3V-tolerant inputs; 120ns delay preserves baud rate integrity up to 1Mbps. |
| Zero-Crossing Detection | Threshold-Based Sensor Interface |
Use Scenario: Detecting AC line zero crossings in smart energy meters for synchronized sampling and phase control. IC Role / Device Role / Timing Role: One comparator channel biased at GND (VEE), comparing AC waveform to 0V reference; output triggers microcontroller timer capture. Use Value: ±0.5mV offset and ±2.5mV hysteresis ensure sub-10µs jitter; rail-to-rail inputs accept ±2V transformer-coupled signals without attenuation. |
Use Scenario: Interfacing thermistor or photodiode output to microcontroller ADC by generating digital alerts at preset temperature/light thresholds. IC Role / Device Role / Timing Role: Dual comparator implementing high/low alert latching - OUTA drives 'OVER TEMP' LED, OUTB drives 'LOW LIGHT' flag. Use Value: Independent hysteresis prevents false triggering near trip points; 1.0pA input bias avoids loading high-impedance sensor dividers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual open-drain comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM393DR | Higher 100μA supply current, no rail-to-rail inputs, no internal hysteresis, SO-8 only | Lacks extended common-mode range and built-in noise immunity - requires external hysteresis resistors | Choose when cost is primary constraint and 120ns speed/rail-to-rail I/O are not required |
| TLV3702IDR | 350nA quiescent current, rail-to-rail inputs, push-pull output (not open-drain), same μMAX-8 package | Cannot perform level translation; requires logic-level-compatible loads - unsuitable for mixed-voltage bus interfacing | Choose when ultra-low power dominates and open-drain functionality is unnecessary |
Compared with LM393DR and TLV3702IDR, the MAX992EUA+T uniquely combines micropower operation (48μA), rail-to-rail I/O, internal hysteresis, and true open-drain outputs in a compact μMAX package - making it the only option that satisfies all four requirements simultaneously for battery-powered level translation and precision threshold detection.
Availability
MAX992EUA+T is available at Aetrix Electronics and suitable for portable battery monitoring, industrial level translation, zero-crossing detection, and threshold-based sensor interface applications requiring stable component supply across long production lifecycles.
Supply support for MAX992EUA+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 power-management ICs for demanding industrial, medical, and communications applications.
The MAX992EUA+T belongs to the MAX987/MAX992 family of high-speed micropower comparators, engineered specifically for low-voltage, low-power signal conditioning in space-constrained and battery-operated systems.
FAQ
What is the maximum allowable voltage on the MAX992EUA+T open-drain output?
The MAX992EUA+T open-drain output (OUTA/OUTB) can be pulled up to a maximum of 6V above VEE. When VEE = 0V (single-supply mode), this permits pull-up to +6V - enabling safe interfacing with higher-voltage logic families such as 5V TTL or CMOS without level-shifting components. Exceeding this limit risks permanent damage per Absolute Maximum Ratings.
Does the MAX992EUA+T require external hysteresis for reliable operation?
No - the MAX992EUA+T includes ±2.5mV internal hysteresis, which is sufficient to prevent output chatter on slow-moving or noisy input signals in most applications. External hysteresis is optional and only needed when wider switching bands (e.g., >10mV) are required for specific noise immunity or window-detection margins.
Can the MAX992EUA+T operate from a single 3.3V supply?
Yes - the MAX992EUA+T is fully specified for single-supply operation from +2.5V to +5.5V. At VCC = 3.3V and VEE = 0V, it maintains 120ns propagation delay, 48μA per comparator quiescent current, and rail-to-rail input common-mode range from –0.25V to +3.55V, making it ideal for modern 3.3V embedded systems.
What is the input bias current specification for the MAX992EUA+T?
The MAX992EUA+T specifies a typical input bias current of 1.0pA at room temperature, with a maximum of 10nA over the full –40°C to +85°C operating range. This ultra-low value minimizes loading errors in high-impedance sensor interfaces such as thermistor bridges or photodiode transimpedance amplifiers.
Is the MAX992EUA+T pin-compatible with other devices in the MAX99x family?
The MAX992EUA+T shares the same 8-pin μMAX package and pinout as the MAX991EUA-T (dual push-pull), but output functionality differs: MAX992EUA+T has open-drain outputs (OUTA/OUTB), whereas MAX991EUA-T provides push-pull outputs. Direct substitution requires verifying external circuit compatibility - especially pull-up requirements and load drive direction.
MAX992EUA+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 2
- Output Type:
- CMOS, Open-Drain, Rail-to-Rail, TTL
- Voltage - Supply, Single/Dual (±):
- 2.5V ~ 5.5V, ±1.25V ~ 2.75V
- :
- 5mV @ 5.5V
- Voltage - Input Offset (Max):
- 1pA @ 5.5V
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 96µA
- Current - Quiescent (Max):
- 80dB CMRR, 80dB PSRR
- CMRR, PSRR (Typ):
- 210ns
- Propagation Delay (Max):
- ±2.5mV
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-uMAX/uSOP
MAX992EUA+T FAQ
1.How can I place an order for MAX992EUA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX992EUA+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 MAX992EUA+T reliable?
The price and inventory of MAX992EUA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX992EUA+T is usually 5 days.
3.What payment methods are accepted for MAX992EUA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX992EUA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX992EUA+T?
MAX992EUA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX992EUA+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 MAX992EUA+T?
For technical support, including MAX992EUA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX992EUA+T requirements.
6.How does Aetrix verify that MAX992EUA+T is sourced from the original manufacturer or authorized distributors?
All MAX992EUA+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 MAX992EUA+T meets industry standards.
7.What is the process for return or replacement of MAX992EUA+T?
All MAX992EUA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX992EUA+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 MAX992EUA+T part is unused and in its original packaging.
Return procedure for MAX992EUA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX992EUA+T Tags
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