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Analog Devices Inc./Maxim Integrated MAX9052AEUA
- Part No.:
- MAX9052AEUA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX9052AEUA.pdf
- Description:
- IC COMPARATOR 2 W/VOLT REF 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:1,056
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Product details
Overview
MAX9052AEUA from Analog Devices is a dual comparator with integrated 2.500V precision voltage reference in an 8-pin µMAX package, operating from 2.7V to 5.5V supply. It delivers rail-to-rail inputs/outputs, 55μA quiescent current, ±3mV internal hysteresis, and 400ns propagation delay - ideal for low-power battery management and window detection circuits.
For engineers reviewing the MAX9052AEUA datasheet, MAX9052AEUA pinout, MAX9052AEUA application, or MAX9052AEUA equivalent, key selection criteria include its dual-comparator + reference integration, A-grade 0.4% initial accuracy, 6ppm/°C tempco, and compatibility with capacitive loads up to 4.7nF on the REF output.
Technical Context
The MAX9052AEUA integrates two independent comparators sharing a single high-accuracy 2.500V reference, with both comparator inputs extending 250mV beyond supply rails (VEE–0.25V to VCC+0.25V). Each comparator features 1.0pA typical input bias current and ±0.5mV typical input offset voltage over temperature.
Its push-pull output stage sinks/sources up to 8mA while limiting switching current surges, and internal ±3mV hysteresis ensures clean transitions with slow-moving signals - eliminating need for external hysteresis in most precision threshold applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 5.5V - supports direct interface with Li-ion battery systems and 3.3V/5V logic domains. |
| Quiescent Supply Current | 55μA typical at VCC = 2.7V - enables multi-year operation in coin-cell-powered sensors. |
| Reference Output Voltage | 2.500V ±0.4% (A grade) - provides stable, laser-trimmed reference for ADCs or analog front-ends. |
| Reference Tempco | 6ppm/°C typical - ensures <±0.15mV drift over –40°C to +85°C for precision level detection. |
| Propagation Delay | 400ns at 100mV overdrive - enables reliable timing in fast window-comparator or zero-crossing detection. |
| Input Common-Mode Range | VEE – 0.25V to VCC + 0.25V - allows direct sensing of signals beyond supply rails without level-shifting. |
| Capacitive Load Stability | Stable with 0–4.7nF on REF - permits local decoupling or filtering without oscillation risk. |
Pinout & Package
MAX9052AEUA is housed in an 8-pin µMAX package (3mm × 3mm, 0.8mm height), RoHS-compliant, with exposed paddle for thermal performance. Pinout matches industry-standard 8-pin SO footprint but in smaller form factor.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUTA | Rail-to-rail push-pull output of Comparator A - drives logic loads directly without pull-up resistor. |
| 2 | INA+ | Noninverting input of Comparator A - accepts signals from VEE–0.25V to VCC+0.25V. |
| 3 | INB– | Inverting input of Comparator B - uncommitted; usable as standalone threshold node. |
| 4 | VEE | Negative supply (GND in single-supply use) - reference for all analog circuitry. |
| 5 | VCC | Positive supply input - powers both comparators and reference core. |
| 6 | REF | 2.500V precision reference output - sources/sinks ±500μA with <±0.15mV load regulation. |
| 7 | INB+ | Noninverting input of Comparator B - shares same common-mode range as INA+. |
| 8 | OUTB | Rail-to-rail push-pull output of Comparator B - fully independent of OUTA. |
Key Features
| Feature | Design Value |
|---|---|
| Dual comparator + precision reference integration | Reduces board space by >40% vs. discrete comparator + reference solutions; eliminates matching errors. |
| A-grade 0.4% initial accuracy & 6ppm/°C tempco | Enables single-point calibration in portable medical or industrial sensor nodes without field recalibration. |
| Rail-to-rail I/O with 8mA drive capability | Directly interfaces with 3.3V/5V microcontrollers, FPGAs, or optocouplers without level translators. |
| Internal ±3mV hysteresis | Prevents chatter on noisy or slowly varying inputs (e.g., thermistor outputs), eliminating external feedback resistors. |
| Ultra-low 55μA supply current | Extends battery life in always-on monitoring systems - e.g., 10-year runtime on CR2032 at 1Hz wake-up rate. |
Applications
| Battery Voltage Window Detection | Precision IR Receiver Thresholding |
|---|---|
Use Scenario: Monitoring Li-ion cell voltage during charge/discharge to enforce 2.7V undervoltage lockout and 4.2V overvoltage cutoff. IC Role / Device Role / Timing Role: Dual comparator compares cell voltage against 2.500V reference-derived thresholds to generate independent UVLO/OVLO flags. Use Value: Eliminates need for external voltage dividers and reference ICs - reduces BOM count by 3 components and improves long-term threshold stability. | Use Scenario: Converting modulated IR photodiode output into clean digital pulses for remote control decoding. IC Role / Device Role / Timing Role: One comparator detects signal presence above noise floor; second sets dynamic hysteresis band using REF voltage. Use Value: 400ns propagation delay and rail-to-rail output ensure accurate pulse timing at 38kHz carrier frequency without jitter. |
| Industrial Sensor Level Translation | Low-Power Data Line Receiver |
Use Scenario: Interfacing 0–2.4V analog sensor output to 3.3V microcontroller ADC with precise 1.2V and 1.8V trip points. IC Role / Device Role / Timing Role: Uses REF (2.500V) to generate scaled thresholds via resistor dividers; dual comparators monitor upper/lower bounds. Use Value: 1.0pA input bias current prevents loading of high-impedance sensor outputs - preserves signal integrity without buffer op-amps. | Use Scenario: Receiving RS-232-like logic levels (±5V) in ultra-low-power IoT edge node with 3.3V MCU. IC Role / Device Role / Timing Role: First comparator converts negative input to logic-high; second validates positive swing - forming robust line receiver. Use Value: Input common-mode range extending 250mV beyond rails allows direct connection to ±5V lines with only series current-limiting resistors. |
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 |
|---|---|---|---|
| MAX9052BEUA | B-grade reference: 1% initial accuracy, 100ppm/°C tempco vs. A-grade's 0.4%/6ppm | Suitable for cost-sensitive consumer devices where ±2.5mV reference error is acceptable | Select when long-term stability and wide-temperature accuracy are non-critical. |
| TLV3602IDR | No integrated reference; requires external 2.5V reference; higher 100μA supply current | Offers rail-to-rail input with 1.8V min supply - better for sub-2.7V systems | Choose if system already includes precision reference or operates below 2.7V. |
Compared with MAX9052BEUA, the MAX9052AEUA provides tighter reference accuracy and lower tempco for metrology-grade thresholding; versus TLV3602IDR, it trades off supply flexibility for full integration and lower quiescent power in 2.7V+ systems.
Availability
MAX9052AEUA is available at Aetrix Electronics and suitable for battery management, industrial sensor interfaces, IR receivers, and low-power data line receivers requiring stable component supply across extended temperature ranges.
Supply support for MAX9052AEUA 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
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The MAX9052AEUA belongs to the MAX9038–MAX9053 micropower comparator + reference family, designed specifically for space- and power-constrained applications demanding precision threshold detection without external references.
FAQ
What is the reference voltage accuracy and temperature coefficient of the MAX9052AEUA?
The MAX9052AEUA features an A-grade 2.500V precision reference with ±0.4% initial accuracy and a typical temperature coefficient of 6ppm/°C over –40°C to +85°C. This specification is guaranteed by design and verified across production lots, enabling high-accuracy threshold generation without calibration in portable instrumentation and sensor systems using the MAX9052AEUA.
Does the MAX9052AEUA require an external capacitor on the REF pin for stability?
No, the MAX9052AEUA does not require an external capacitor on the REF pin for stability - it is inherently stable with capacitive loads from 0 to 4.7nF. An optional capacitor may be added to improve transient response during step-load changes, but omission introduces no risk of oscillation. This simplifies layout and reduces BOM count in designs using the MAX9052AEUA.
What is the maximum load current the REF output can source or sink?
The REF output of the MAX9052AEUA can source or sink up to ±500μA while maintaining specified accuracy and stability. Load regulation is characterized at 2–4µV/µA for sourcing and 3.5–6µV/µA for sinking, ensuring minimal voltage shift under typical reference-buffering or divider-loading conditions encountered when using the MAX9052AEUA in precision analog circuits.
Can the MAX9052AEUA operate from a 2.5V supply?
No, the MAX9052AEUA requires a minimum supply voltage of 2.7V, as specified in its absolute maximum ratings and electrical characteristics tables. While earlier family members (e.g., MAX9040–MAX9043) support 2.5V operation, the MAX9052AEUA's 2.500V reference architecture mandates ≥2.7V to ensure proper headroom for internal regulation - attempting 2.5V operation will result in undefined reference output and comparator behavior for the MAX9052AEUA.
How does the internal hysteresis of the MAX9052AEUA affect threshold accuracy?
The MAX9052AEUA incorporates fixed ±3mV internal hysteresis centered on the comparator's input offset voltage, which is typically ±0.5mV. This results in a total hysteresis band of ~6mV, improving noise immunity without requiring external components. When designing threshold points, users must account for this hysteresis - for example, a nominal 2.500V trip point becomes 2.497V (low-to-high) and 2.503V (high-to-low) - a critical consideration in precision window detection using the MAX9052AEUA.
MAX9052AEUA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Type:
- with Voltage Reference
- Number of Elements:
- 2
- Output Type:
- CMOS, Push-Pull, Rail-to-Rail, TTL
- Voltage - Supply, Single/Dual (±):
- 2.7V ~ 5.5V
- :
- 5mV @ 5V
- Voltage - Input Offset (Max):
- 1pA @ 5V
- Current - Input Bias (Max):
- 8mA
- Current - Output (Typ):
- 85µA
- Current - Quiescent (Max):
- 80dB CMRR, 80dB PSRR
- CMRR, PSRR (Typ):
- 450ns
- Propagation Delay (Max):
- ±3mV
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-uMAX/uSOP
MAX9052AEUA FAQ
1.How can I place an order for MAX9052AEUA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX9052AEUA 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 MAX9052AEUA reliable?
The price and inventory of MAX9052AEUA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX9052AEUA is usually 5 days.
3.What payment methods are accepted for MAX9052AEUA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX9052AEUA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX9052AEUA?
MAX9052AEUA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX9052AEUA 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 MAX9052AEUA?
For technical support, including MAX9052AEUA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX9052AEUA requirements.
6.How does Aetrix verify that MAX9052AEUA is sourced from the original manufacturer or authorized distributors?
All MAX9052AEUA 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 MAX9052AEUA meets industry standards.
7.What is the process for return or replacement of MAX9052AEUA?
All MAX9052AEUA units undergo pre-shipment inspection (PSI). If there is an issue with MAX9052AEUA, 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 MAX9052AEUA part is unused and in its original packaging.
Return procedure for MAX9052AEUA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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