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Analog Devices Inc./Maxim Integrated MAX9052BEUA-T
- Part No.:
- MAX9052BEUA-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX9052BEUA-T.pdf
- Description:
- IC COMPARATOR 2 W/VOLT REF 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:2,375
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Product details
Overview
The MAX9052BEUA-T from Analog Devices is a dual micropower comparator with integrated 2.500V precision voltage reference, operating from 2.7V to 5.5V supply. It delivers rail-to-rail inputs/outputs, 400ns propagation delay, ±3mV internal hysteresis, and consumes only 55µA typical supply current - ideal for battery-powered precision level detection in portable instrumentation.
For engineers reviewing the MAX9052BEUA-T datasheet, MAX9052BEUA-T pinout, MAX9052BEUA-T application, or MAX9052BEUA-T equivalent, key selection criteria include its dual-comparator + reference integration in µMAX-8, A/B grade reference accuracy (1% initial, 100ppm/°C), rail-to-rail output drive (±8mA), and low-noise 2.5V reference stability under capacitive loads up to 4.7nF.
Technical Context
This device implements two independent comparators sharing a single laser-trimmed series-mode voltage reference. Each comparator features rail-to-rail input stage with common-mode range extending 250mV beyond rails and input bias current as low as 1pA, enabling high-impedance sensing. The output stage uses a push-pull architecture capable of sourcing/sinking 8mA without supply glitches.
The 2.500V reference employs proprietary curvature correction and thin-film resistor trimming to achieve 1% initial accuracy (B grade) and 100ppm/°C temperature coefficient over –40°C to +85°C. It remains stable with capacitive loads from 0 to 4.7nF and supports bidirectional load current up to ±500µA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 5.5V single supply - supports direct interface with Li-ion battery systems and 3.3V/5V logic domains. |
| Supply Current (Typ) | 55µA at VCC = 2.7V - enables multi-year operation on coin-cell batteries in always-on monitoring circuits. |
| Reference Output Voltage | 2.500V ±2.5mV (B grade, TA = +25°C) - provides stable threshold for ADC reference, DAC biasing, or window comparator midpoints. |
| Propagation Delay | 400ns at 100mV overdrive, CL = 15pF - ensures timely response in fast edge-detection and pulse-width measurement applications. |
| Input Offset Voltage | ±1mV (max, B grade, full temp range) - maintains accurate trip-point stability across industrial temperature environments. |
| Output Drive Capability | Rail-to-rail push-pull, ±8mA - directly drives LEDs, logic inputs, or small MOSFET gates without external buffers. |
| Reference Tempco | 100ppm/°C (B grade) - limits reference drift to ±0.85mV over –40°C to +85°C, critical for precision analog thresholds. |
Pinout & Package
The MAX9052BEUA-T is housed in an 8-pin µMAX package (3mm × 3mm, 0.8mm height), RoHS-compliant and lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUTA) | Comparator A output | Push-pull rail-to-rail output capable of sourcing/sinking 8mA; no external pull-up required. |
| 2 (INA+) | Comparator A noninverting input | High-impedance input (IB < 1pA) with rail-to-rail common-mode range (VEE – 0.25V to VCC + 0.25V). |
| 3 (INB–) | Comparator B inverting input | Uncommitted input - may be used as signal input or tied to reference for single-threshold configuration. |
| 4 (VEE) | Negative supply | Ground reference pin; must be connected to system GND for single-supply operation. |
| 5 (VCC) | Positive supply | Accepts 2.7V–5.5V; bypass capacitor recommended if supply impedance exceeds 1Ω. |
| 6 (REF) | Precision reference output | 2.500V ±25mV (B grade); stable with 0–4.7nF capacitive load; sources/sinks ±500µA. |
| 7 (OUTB) | Comparator B output | Independent push-pull output identical in performance to OUTA; enables dual-threshold or window detection. |
| 8 (INA–) | Comparator A inverting input | Uncommitted input - configurable as signal input or referenced to REF for fixed-threshold comparison. |
Key Features
| Feature | Design Value |
|---|---|
| Dual comparator + precision reference integration | Reduces board space by >40% vs. discrete comparator + reference solutions; eliminates inter-component matching drift. |
| Rail-to-rail input/output with 250mV beyond-rail CMVR | Enables direct sensing of signals near supply rails - e.g., battery voltage monitoring down to 0.25V above GND. |
| Internal ±3mV hysteresis | Prevents output oscillation on slow-moving or noisy inputs without external feedback components. |
| Ultra-low switching current surge | Minimizes supply-line transients - eliminates need for large local bypass caps in noise-sensitive analog sections. |
| Stable 2.500V reference with 4.7nF capacitive-load tolerance | Allows direct connection to ADC reference pins or op-amp bias networks without destabilizing compensation. |
Applications
| Portable Battery Monitoring | Industrial Window Comparator |
|---|---|
Use Scenario: Real-time monitoring of Li-ion cell voltage during charge/discharge cycles in handheld medical devices. IC Role / Device Role / Timing Role: Dual comparator compares cell voltage against upper (4.2V) and lower (2.8V) thresholds derived from REF and resistor dividers; REF provides stable 2.500V base. Use Value: 55µA quiescent current extends battery life >3× vs. legacy comparators; rail-to-rail inputs capture full voltage range without level-shifting. | Use Scenario: Detecting out-of-tolerance sensor outputs in factory automation PLC modules. IC Role / Device Role / Timing Role: One comparator monitors upper limit (REF × 1.6), the other lower limit (REF × 1.12); outputs feed OR gate for fault flag generation. Use Value: Integrated 2.500V reference eliminates ratio errors from separate reference ICs; ±3mV hysteresis prevents chatter near trip points. |
| IR Remote Signal Demodulation | Low-Power Digital Line Receiver |
Use Scenario: Converting modulated IR carrier (38kHz) into clean digital pulses in smart home remotes. IC Role / Device Role / Timing Role: Comparator A detects envelope peak using REF-based threshold; Comparator B provides hysteresis-enhanced zero-crossing detection. Use Value: 400ns propagation delay preserves pulse timing integrity; 2.7V min supply enables direct use with single alkaline cell. | Use Scenario: Level translation between 1.8V microcontroller I/O and 3.3V peripheral bus in IoT edge nodes. IC Role / Device Role / Timing Role: Comparator A acts as 1.8V-to-3.3V translator using REF as threshold; Comparator B provides fail-safe undervoltage lockout. Use Value: Push-pull outputs eliminate external pull-ups; rail-to-rail inputs accept 0–1.8V logic swing without clamping diodes. |
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 |
|---|---|---|---|
| MAX9052AEUA+ | A-grade reference: 0.4% initial accuracy, 6ppm/°C tempco vs. B-grade's 1% and 100ppm/°C | Suitable for high-precision applications like calibration equipment where reference drift must be minimized | Select MAX9052AEUA+ when reference stability dominates system accuracy budget; MAX9052BEUA-T preferred for cost-sensitive, battery-constrained designs |
| TLV3702IDR | No integrated reference; requires external 2.5V reference; higher supply current (80µA typ); rail-to-rail I/O but no beyond-rail CMVR | Used where reference voltage is already available on board or where dual comparators alone suffice | Choose TLV3702IDR only if reference is shared across multiple ICs; MAX9052BEUA-T reduces component count and layout complexity |
Compared with MAX9052AEUA+, the MAX9052BEUA-T trades reference precision for lower cost and broader tempco tolerance, while versus TLV3702IDR it delivers full integration - eliminating external reference, reducing PCB area by ~30%, and enabling true single-supply operation down to 2.7V.
Availability
MAX9052BEUA-T is available at Aetrix Electronics and suitable for portable medical devices, industrial sensor interfaces, battery management systems, and IoT edge nodes requiring stable component supply with guaranteed long-term availability.
Supply support for MAX9052BEUA-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
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 MAX9052BEUA-T belongs to the MAX9038–MAX9053 family of micropower comparator + reference ICs, designed specifically for ultra-low-power, space-constrained applications where integration, supply flexibility, and reference stability are critical.
FAQ
What is the maximum capacitive load the MAX9052BEUA-T reference output can drive while remaining stable?
The MAX9052BEUA-T reference output is stable with capacitive loads from 0 to 4.7nF, as confirmed in the datasheet's "Capacitive-Load Stability Range" specification. This allows direct connection to ADC reference inputs or op-amp bias networks without external compensation. For transient-heavy applications, a 100nF ceramic capacitor is recommended to reduce overshoot, though not required for stability.
Does the MAX9052BEUA-T support operation below 2.7V supply voltage?
No - the MAX9052BEUA-T has a specified minimum supply voltage of 2.7V, per the "Supply Voltage Range" parameter in the Electrical Characteristics table. Operation below 2.7V is outside guaranteed specifications and may result in reference instability, increased propagation delay, or failure to meet output drive requirements. For sub-2.7V operation, consider the MAX9040–MAX9043 series (2.5V min).
Can both comparators in the MAX9052BEUA-T share the same reference voltage for threshold generation?
Yes - the single 2.500V reference output (pin 6) is designed to serve both comparators simultaneously. The datasheet confirms that MAX9052 devices feature "REF/Uncommitted" IN– connections, allowing one comparator to use REF as its inverting input while the other uses a different signal. This enables precise window or hysteresis configurations without external voltage dividers.
What is the input bias current specification for the MAX9052BEUA-T over temperature?
The MAX9052BEUA-T input bias current is specified as ±0.001nA (1pA) minimum and ±25.0nA maximum over the full –40°C to +85°C temperature range (B grade). Typical value is 1pA at +25°C. This ultra-low bias enables high-impedance sensor interfacing - such as thermistors or photodiodes - without significant loading error.
Is the MAX9052BEUA-T pin-compatible with other devices in the MAX9050–MAX9053 family?
Yes - all MAX9052 variants (including MAX9052AEUA+, MAX9052BEUA-T, MAX9052AESA, MAX9052BESA) share identical 8-pin µMAX pinout and function mapping. However, it is not pin-compatible with MAX9050/MAX9051 (5-/6-pin SOT23) or MAX9053 (10-pin µMAX), which differ in pin count, package, and IN– configuration.
MAX9052BEUA-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:
- 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
- :
- 1mV @ 5V
- Voltage - Input Offset (Max):
- 1pA @ 5V
- Current - Input Bias (Max):
- 8mA
- Current - Output (Typ):
- 130µA
- 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
MAX9052BEUA-T FAQ
1.How can I place an order for MAX9052BEUA-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX9052BEUA-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 MAX9052BEUA-T reliable?
The price and inventory of MAX9052BEUA-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX9052BEUA-T is usually 5 days.
3.What payment methods are accepted for MAX9052BEUA-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX9052BEUA-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX9052BEUA-T?
MAX9052BEUA-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX9052BEUA-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 MAX9052BEUA-T?
For technical support, including MAX9052BEUA-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX9052BEUA-T requirements.
6.How does Aetrix verify that MAX9052BEUA-T is sourced from the original manufacturer or authorized distributors?
All MAX9052BEUA-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 MAX9052BEUA-T meets industry standards.
7.What is the process for return or replacement of MAX9052BEUA-T?
All MAX9052BEUA-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX9052BEUA-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 MAX9052BEUA-T part is unused and in its original packaging.
Return procedure for MAX9052BEUA-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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