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Analog Devices Inc./Maxim Integrated MAX967EUA+T
- Part No.:
- MAX967EUA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX967EUA+T.pdf
- Description:
- IC COMPARATOR 2 W/VOLT REF 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:1,731
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Product details
Overview
MAX967EUA+T from Maxim Integrated is a dual micropower rail-to-rail input/output comparator with integrated 1.235V ±1.5% reference and programmable hysteresis, operating from +1.6V to +5.5V single supply and drawing only 10–16 µA total supply current over –40°C to +85°C. It features open-drain outputs capable of sinking beyond VCC up to 6V, rail-to-rail input common-mode range down to –0.25V, and 10 µs propagation delay (50mV overdrive), making it suitable for ultra-low-power 2-cell battery voltage monitoring and threshold detection in portable systems.
For engineers reviewing the MAX967EUA+T datasheet, MAX967EUA+T pinout, MAX967EUA+T application, or MAX967EUA+T equivalent, key selection criteria include its dual-comparator architecture with shared hysteresis control, internal reference accuracy and temperature drift, open-drain output drive capability under low-VCC conditions, and µMAX-8 package compatibility with space-constrained PCB layouts.
Technical Context
The MAX967EUA+T implements two independent comparators sharing a common HYST pin and REF output, enabling synchronized hysteresis programming across both channels. Its input stage supports rail-to-rail operation with –0.25V to (VCC – 0.25V) common-mode range at full temperature, and its open-drain outputs tolerate continuous short-circuit to GND or VCC.
Internal 1.235V bandgap reference delivers ±1.5% accuracy (0°C to +85°C) and ±2.5% (–40°C to +85°C), sourcing up to 50 µA while maintaining <10 µVRMS noise with 0.1 µF bypass. Propagation delay remains stable at 10 µs (50mV overdrive) across 1.6V–5.5V supply and full temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +1.6V to +5.5V - enables direct operation from 2-cell alkaline or Li-ion batteries without regulation |
| Total Supply Current | 10 µA (typ) to 16 µA (max) - ensures >1-year battery life in always-on portable sensors |
| Reference Voltage | 1.235V ±1.5% (0°C to +85°C) - provides stable trip point for precision threshold detection |
| Propagation Delay | 10 µs @ 50mV overdrive - supports response to fast transients in power-supply fault detection |
| Input Offset Voltage | 6.0 mV (max, –40°C to +85°C, µMAX) - defines minimum detectable voltage difference between inputs |
| Output Sink Capability | Valid up to 6V above GND - allows level-shifting to higher-voltage logic domains (e.g., 3.3V/5V I/O) |
| Hysteresis Programmability | ±1 mV to ±50 mV via external R1/R2 - eliminates noise-induced chatter in noisy industrial environments |
Pinout & Package
The MAX967EUA+T is housed in an 8-pin µMAX® package (U8-1), measuring 3.0mm × 3.0mm × 0.8mm with exposed pad for thermal enhancement and RoHS-compliant lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUTA | Open-drain output of Comparator A - requires external pull-up; sinks up to 6V above GND |
| 2 | VCC | Positive supply input (+1.6V to +5.5V) - powers both comparators and internal reference |
| 3 | INB+ | Inverting input of Comparator B - accepts rail-to-rail common-mode signals from –0.25V to VCC – 0.25V |
| 4 | INB– | Noninverting input of Comparator B - shares HYST/REF configuration with Comparator A |
| 5 | INA– | Inverting input of Comparator A - supports differential sensing with matched input bias current (<5 nA) |
| 6 | HYST | Hysteresis programming node - connects to REF or external resistor divider to set ±1–50 mV hysteresis band |
| 7 | REF | 1.235V reference output - sources up to 50 µA; requires 0.1 µF bypass for <10 µVRMS noise |
| 8 | GND | Analog ground reference - must be tied to system ground plane with low-inductance connection |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input common-mode range | –0.25V to (VCC – 0.25V) - enables direct sensing of battery voltage down to near-GND or near-VCC |
| Programmable hysteresis per device | Single HYST pin controls both comparators - simplifies PCB layout and reduces component count vs. discrete hysteresis networks |
| Ultra-low quiescent current | 10–16 µA total - extends battery life in energy-harvesting and IoT endpoint applications |
| Integrated precision reference | 1.235V ±1.5% over 0°C to +85°C - eliminates need for external voltage reference IC or resistor divider |
| Open-drain outputs with extended sink range | Sinks up to 6V above GND - supports mixed-voltage system interfacing without level translators |
Applications
| 2-Cell Battery Monitoring | Window Comparator |
|---|---|
Use Scenario: Continuous monitoring of 2-cell alkaline or NiMH battery pack voltage during deep discharge (1.0V–3.2V range). IC Role / Device Role / Timing Role: Dual comparator configured as low-voltage cutoff (OUTA) and overvoltage warning (OUTB), sharing REF and HYST. Use Value: Prevents system brownout and cell reversal using single IC with guaranteed 10 µs response to voltage collapse below 1.6V. |
Use Scenario: Detecting if sensor output (e.g., thermistor voltage) falls within safe operating window (e.g., 1.0V–2.0V). IC Role / Device Role / Timing Role: MAX967EUA+T configured as window comparator using INA+/INA– and INB+/INB– with common REF and HYST. Use Value: Eliminates need for four discrete comparators and external reference, reducing BOM cost by 60% and board area by 45%. |
| Mobile Communication Power Sequencing | Ground-Sensing Threshold Detector |
Use Scenario: Validating correct power-up sequence of RF transceiver, baseband processor, and PMIC rails in handheld devices. IC Role / Device Role / Timing Role: Two independent comparators monitor VCC1 and VCC2 thresholds against REF, generating enable signals with programmable hysteresis. Use Value: Ensures reliable power sequencing across temperature with no external hysteresis components, meeting JEDEC JESD78 latch-up immunity requirements. |
Use Scenario: Detecting ground faults in automotive body control modules where load return path voltage exceeds 50 mV above chassis ground. IC Role / Device Role / Timing Role: Comparator A compares sensed ground return to REF (1.235V) scaled via resistor divider; Comparator B provides redundant confirmation. Use Value: Achieves <100 µA total system current draw for continuous ground-fault surveillance, compliant with ISO 16750-2 transient immunity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual comparator with reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV3702IDR | No internal reference; rail-to-rail output but not rail-to-rail input; 1.8V min supply; 850 nA/ch supply current | Requires external reference and level-shifting for sub-1.8V operation; better for ultra-low-IQ designs above 1.8V | Select when lowest possible quiescent current is critical and external reference is acceptable |
| MAX965EUA+T | Single comparator; identical REF, HYST, µMAX-8 package, and electrical specs except channel count | Used where only one threshold detection is needed; pin-compatible footprint allows design reuse | Select for single-channel applications to reduce cost and simplify layout without changing PCB |
Compared with TLV3702IDR and MAX965EUA+T, the MAX967EUA+T uniquely delivers dual-channel functionality with integrated reference and programmable hysteresis in the same µMAX-8 footprint-enabling compact, self-contained voltage monitoring without external components or supply voltage limitations below 1.6V.
Availability
MAX967EUA+T is available at Aetrix Electronics and suitable for 2-cell battery-powered systems, portable medical monitors, and industrial sensor nodes requiring stable component supply with guaranteed long-term availability and RoHS-compliant packaging.
Supply support for MAX967EUA+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 power management, sensing, and signal conditioning in demanding industrial, automotive, and portable applications.
The MAX965–MAX970 family was engineered specifically for ultra-low-voltage, micropower comparator applications in battery-constrained systems-emphasizing rail-to-rail operation, integrated references, and minimal supply current without sacrificing speed or accuracy.
FAQ
What is the minimum operating supply voltage for MAX967EUA+T?
The MAX967EUA+T is fully specified from +1.6V to +5.5V. While comparator operation may persist down to +1.0V, reference accuracy degrades below +1.5V and propagation delay increases significantly. For guaranteed performance per datasheet specifications, maintain VCC ≥ +1.6V. The MAX967EUA+T datasheet specifies 1.8V min for µMAX package across –40°C to +85°C.
Does MAX967EUA+T support rail-to-rail input common-mode voltage?
Yes, the MAX967EUA+T supports a rail-to-rail input common-mode voltage range of –0.25V to (VCC – 0.25V) across the full temperature range. This allows direct interface to signals referenced to GND or VCC, including battery voltage monitoring and ground-sense applications. The MAX967EUA+T maintains this specification even at VCC = +1.6V.
How is hysteresis programmed on MAX967EUA+T?
Hysteresis on the MAX967EUA+T is programmed using the HYST pin: connect resistor R1 between REF and HYST, and R2 between HYST and GND. This configures hysteresis from ±1 mV to ±50 mV, applied identically to both comparators. If no hysteresis is needed, tie HYST directly to REF. The MAX967EUA+T datasheet provides exact formulas for R1/R2 calculation based on desired hysteresis band.
What is the output structure of MAX967EUA+T and what pull-up voltage can it tolerate?
The MAX967EUA+T features open-drain outputs (OUTA and OUTB) capable of sinking current up to 6V above GND, independent of VCC. This allows pull-up to higher-voltage rails (e.g., 3.3V or 5V) while powered from a lower VCC (e.g., 1.8V), enabling seamless voltage-level translation. The MAX967EUA+T output leakage remains <100 nA at 5.5V, ensuring clean logic transitions.
Is MAX967EUA+T pin-compatible with other devices in the MAX965–MAX970 family?
The MAX967EUA+T in µMAX-8 package shares identical pinout with MAX965EUA+T and MAX966EUA+T, differing only in internal functionality (dual comparator + REF + HYST vs. single or dual without REF). This enables footprint reuse across designs. However, MAX967EUA+T is not pin-compatible with SO-package variants (e.g., MAX967ESA) due to different pin assignments and package dimensions.
MAX967EUA+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:
- with Voltage Reference
- Number of Elements:
- 2
- Output Type:
- Open-Drain, Rail-to-Rail
- Voltage - Supply, Single/Dual (±):
- 1.6V ~ 5.5V
- :
- 15mV @ 5.5V
- Voltage - Input Offset (Max):
- 0.05µA @ 5.5V
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 16µA
- Current - Quiescent (Max):
- 56.48dB CMRR, 80dB PSRR
- CMRR, PSRR (Typ):
- 20µs
- Propagation Delay (Max):
- ±1mV
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-uMAX/uSOP
MAX967EUA+T FAQ
1.How can I place an order for MAX967EUA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX967EUA+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 MAX967EUA+T reliable?
The price and inventory of MAX967EUA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX967EUA+T is usually 5 days.
3.What payment methods are accepted for MAX967EUA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX967EUA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX967EUA+T?
MAX967EUA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX967EUA+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 MAX967EUA+T?
For technical support, including MAX967EUA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX967EUA+T requirements.
6.How does Aetrix verify that MAX967EUA+T is sourced from the original manufacturer or authorized distributors?
All MAX967EUA+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 MAX967EUA+T meets industry standards.
7.What is the process for return or replacement of MAX967EUA+T?
All MAX967EUA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX967EUA+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 MAX967EUA+T part is unused and in its original packaging.
Return procedure for MAX967EUA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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