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Analog Devices Inc./Maxim Integrated MAX9050BEUK+T
- Part No.:
- MAX9050BEUK+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX9050BEUK+T.pdf
- Description:
- IC COMPARATOR 1 W/VOLT REF SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:1,748
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Product details
Overview
MAX9050BEUK+T from Analog Devices is a micropower single-supply comparator with integrated 2.500V precision voltage reference, designed for battery-operated systems requiring rail-to-rail inputs/outputs, 40μA quiescent current, ±3mV internal hysteresis, and operation from 2.7V to 5.5V. It delivers 400ns propagation delay and supports precision window detection in portable instrumentation.
For engineers reviewing the MAX9050BEUK+T datasheet, MAX9050BEUK+T pinout, MAX9050BEUK+T application, or MAX9050BEUK+T equivalent, key selection criteria include its A/B-grade reference accuracy (1% initial, 100ppm/°C tempco), SOT23-5 package footprint, push-pull output capable of sourcing/sinking 8mA, and compatibility with capacitive loads up to 4.7nF on the REF pin.
Technical Context
The MAX9050BEUK+T integrates a single high-precision comparator with a laser-trimmed series-mode voltage reference. Its input stage features rail-to-rail common-mode range extending 250mV beyond supply rails and 1.0pA typical input bias current. The comparator uses internal ±3mV hysteresis to ensure clean switching with slow-moving signals.
The reference section provides a stable 2.500V output with B-grade specifications: ±1% initial accuracy and 100ppm/°C temperature coefficient. It sources or sinks up to 500μA while maintaining stability across 0–4.7nF capacitive loads and exhibits 84dB ripple rejection at 120Hz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 5.5V - enables direct use in Li-ion and dual-cell alkaline systems without regulation |
| Quiescent Supply Current | 40μA at +25°C - extends battery life in always-on sensing nodes |
| Reference Output Voltage | 2.500V ±1% - provides accurate threshold for ADC reference or comparator trip point |
| Propagation Delay | 400ns at 100mV overdrive - supports medium-speed signal monitoring up to ~1MHz |
| Input Offset Voltage | ±1mV (max) - ensures low-error decision thresholds in precision level detection |
| Output Drive Capability | Rail-to-rail push-pull, ±8mA - directly interfaces with CMOS logic or drives small LEDs without external buffers |
| Reference Tempco | 100ppm/°C - limits drift to ±2.5mV over –40°C to +85°C ambient |
Pinout & Package
The MAX9050BEUK+T is housed in a RoHS-compliant 5-pin SOT23 package (package code: -; outline no. 21-0057), with 1.6mm × 2.8mm footprint and 0.95mm height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT | Comparator output | Push-pull rail-to-rail stage; sinks/sources up to 8mA; no external pull-up required |
| 2 - IN+ | Noninverting input | Accepts signals from VEE – 0.25V to VCC + 0.25V; 1.0pA bias current minimizes loading |
| 3 - VEE | Negative supply | Ground reference for single-supply operation; tied to system GND in most applications |
| 4 - REF | Voltage reference output | Stable 2.500V source; supports 0–4.7nF capacitive loads; supplies up to 500μA |
| 5 - VCC | Positive supply | Accepts 2.7V–5.5V; powers both comparator and reference sections |
Key Features
| Feature | Design Value |
|---|---|
| Integrated comparator + reference | Reduces BOM count and PCB area vs. discrete solutions; eliminates reference routing noise coupling |
| Rail-to-rail I/O with extended CMVR | Enables full-scale signal monitoring in low-voltage systems without level-shifting circuitry |
| Ultra-low 40μA quiescent current | Supports >10-year battery life in coin-cell-powered IoT sensors operating at 1Hz wake-up rate |
| Internal ±3mV hysteresis | Prevents chatter on noisy or slowly varying inputs without external feedback components |
| Capacitive-load-stable reference (0–4.7nF) | Allows local decoupling or filtering on REF without risk of oscillation or settling degradation |
Applications
| Portable Battery Monitoring | Industrial Level Translation |
|---|---|
Use Scenario: Real-time monitoring of Li-ion cell voltage during charging/discharging cycles in handheld medical devices. IC Role / Device Role / Timing Role: Comparator compares cell voltage against 2.500V reference to trigger charge termination or low-battery alert. Use Value: 1% reference accuracy ensures ±25mV trip-point tolerance; 40μA supply current minimizes self-discharge impact on battery runtime. | Use Scenario: Converting 0–2.4V analog sensor outputs to clean 0/5V logic levels in PLC input modules. IC Role / Device Role / Timing Role: Reference sets precise 2.500V threshold; comparator provides fast, glitch-free digital output with rail-to-rail drive. Use Value: Push-pull output eliminates need for external pull-up resistors; 400ns delay supports sampling rates up to 1MHz. |
| IR Receiver Front-End | Window Comparator Subsystem |
Use Scenario: Demodulating 38kHz IR carrier bursts in remote-control receivers with high ambient light immunity. IC Role / Device Role / Timing Role: Comparator detects envelope amplitude against 2.500V reference; internal hysteresis rejects optical noise transients. Use Value: 1.0pA input bias prevents DC error accumulation in high-impedance photodiode bias networks. | Use Scenario: Validating that a 3.3V power rail remains within ±5% tolerance (3.135V–3.465V) in telecom line cards. IC Role / Device Role / Timing Role: Paired with second comparator (e.g., MAX9051), forms one half of a window detector using shared 2.500V reference. Use Value: Identical reference voltage across both comparators eliminates tracking error; B-grade tempco ensures <±10mV total drift over temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar comparator + reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX9050AEUK+T | A-grade reference: ±0.4% initial accuracy, 6ppm/°C tempco vs. B-grade's ±1%, 100ppm/°C | Suitable for metrology-grade thresholding where long-term stability and minimal thermal drift are critical | Select MAX9050AEUK+T when reference accuracy dominates system error budget; MAX9050BEUK+T suffices for cost-sensitive industrial monitoring. |
| TLV4041IDBVR | Single comparator only; no integrated reference; requires external 2.5V reference (e.g., REF3025); 850nA IQ | Higher design flexibility but larger solution size and increased component count; not drop-in compatible | Choose TLV4041IDBVR only if independent reference sourcing or ultra-low IQ (<1μA) is mandatory; MAX9050BEUK+T offers tighter integration and lower total solution cost. |
Compared with MAX9050AEUK+T, the MAX9050BEUK+T trades reference precision for lower unit cost and broader tempco tolerance, while versus TLV4041IDBVR it delivers complete signal-chain integration at higher quiescent current but significantly reduced layout complexity and bill-of-materials count.
Availability
MAX9050BEUK+T is available at Aetrix Electronics and suitable for portable battery monitoring, industrial level translation, IR receiver front-ends, and window comparator subsystems requiring stable component supply across production lifecycles.
Supply support for MAX9050BEUK+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 MAX9050BEUK+T belongs to the MAX9038–MAX9053 family of micropower comparator + reference ICs, engineered specifically for space-constrained, battery-powered applications demanding precision, low power, and simplified design.
FAQ
What is the reference voltage accuracy and temperature coefficient of the MAX9050BEUK+T?
The MAX9050BEUK+T features a B-grade 2.500V voltage reference with ±1% initial accuracy and a temperature coefficient of 100ppm/°C. This means the output voltage may drift up to ±2.5mV over the full –40°C to +85°C operating range. These values are specified in the Electrical Characteristics table under "B Grade (1% Initial Accuracy)" in the official datasheet.
Does the MAX9050BEUK+T have an open-drain or push-pull output?
The MAX9050BEUK+T has a rail-to-rail push-pull output stage, unlike the MAX9038 which uses open-drain. This allows the MAX9050BEUK+T to actively drive both high and low logic states without requiring an external pull-up resistor. It can source and sink up to 8mA, making it suitable for direct interfacing with CMOS inputs or driving small indicator loads.
Can the MAX9050BEUK+T operate from a 2.5V supply?
No, the MAX9050BEUK+T requires a minimum supply voltage of 2.7V, as specified in the Absolute Maximum Ratings and Electrical Characteristics tables. While earlier family members like MAX9040 support 2.5V, the MAX9050–MAX9053 series begins operation at 2.7V to ensure proper reference regulation and comparator performance across temperature and process variation.
What is the maximum capacitive load supported on the REF pin of the MAX9050BEUK+T?
The MAX9050BEUK+T reference output is stable with capacitive loads from 0 to 4.7nF, as confirmed in the "Capacitive-Load Stability Range" specification (CL(VREF)) under both A- and B-grade Electrical Characteristics. This allows designers to add local filtering or decoupling capacitance without risking oscillation or degraded settling time.
Is the MAX9050BEUK+T pin-compatible with other devices in the MAX90xx family?
The MAX9050BEUK+T uses the 5-pin SOT23 package and shares identical pinout with MAX9040BEUK+T and MAX9050AEUK+T (OUT, IN+, VEE, REF, VCC). However, it is not pin-compatible with 6-pin variants (e.g., MAX9041, MAX9051) or UCSP-packaged parts due to differing pin counts and terminal assignments. Always verify pin configuration using the "Pin Configurations" section of the datasheet before board reuse.
MAX9050BEUK+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- SC-74A, SOT-753
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- with Voltage Reference
- Number of Elements:
- 1
- 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):
- 100µA
- 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
- :
- SOT-23-5
MAX9050BEUK+T FAQ
1.How can I place an order for MAX9050BEUK+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX9050BEUK+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 MAX9050BEUK+T reliable?
The price and inventory of MAX9050BEUK+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX9050BEUK+T is usually 5 days.
3.What payment methods are accepted for MAX9050BEUK+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX9050BEUK+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX9050BEUK+T?
MAX9050BEUK+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX9050BEUK+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 MAX9050BEUK+T?
For technical support, including MAX9050BEUK+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX9050BEUK+T requirements.
6.How does Aetrix verify that MAX9050BEUK+T is sourced from the original manufacturer or authorized distributors?
All MAX9050BEUK+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 MAX9050BEUK+T meets industry standards.
7.What is the process for return or replacement of MAX9050BEUK+T?
All MAX9050BEUK+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX9050BEUK+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 MAX9050BEUK+T part is unused and in its original packaging.
Return procedure for MAX9050BEUK+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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