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Analog Devices Inc./Maxim Integrated MAX9038BEBT+T
- Part No.:
- MAX9038BEBT+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 6-WFBGA, WLBGA
- Datasheet:
-
MAX9038BEBT+T.pdf
- Description:
- IC COMPARATOR 1 W/VOLT REF 6WLP
- Quantity:
- Payment:
- Shipping:
Inventory:4,162
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Product details
Overview
The MAX9038BEBT+T from Analog Devices is a micropower, single-supply comparator with integrated 1.23V precision voltage reference in a 6-bump UCSP package. It features rail-to-rail inputs extending 250mV beyond rails, open-drain output sinking up to 8mA, 400ns propagation delay at 100mV overdrive, and 40μA quiescent supply current - ideal for low-voltage battery-powered precision threshold detection.
For engineers reviewing the MAX9038BEBT+T datasheet, MAX9038BEBT+T pinout, MAX9038BEBT+T application, or MAX9038BEBT+T equivalent, key selection criteria include its ±0.4% reference initial accuracy (B grade), 100ppm/°C tempco, uncommitted IN− configuration, and UCSP footprint suitability for space-constrained portable instrumentation and sensor interface designs.
Technical Context
The MAX9038BEBT+T integrates a single comparator with internal ±3mV hysteresis and a series-mode 1.23V reference using curvature-correction circuitry and laser-trimmed thin-film resistors. Its input stage supports common-mode voltages from VEE − 0.25V to VCC + 0.25V, with typical 1.0pA input bias current and ±1mV input offset voltage over temperature.
The open-drain output enables level translation across voltage domains, while the unique switching-current-limited output stage minimizes supply glitches during transitions - critical for noise-sensitive mixed-signal systems operating from 2.5V to 5.5V supplies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reference Voltage | 1.230V ±0.4% (max) at +25°C - enables accurate low-voltage threshold setting without external components |
| Supply Current | 40μA at VCC = 5V - extends battery life in always-on monitoring applications |
| Propagation Delay | 400ns at 100mV overdrive, CL = 15pF - supports fast response in signal conditioning and window detection |
| Input Offset Voltage | ±1mV (max) over −40°C to +85°C - ensures stable trip-point accuracy across industrial temperature range |
| Output Sink Current | 8mA at VOL ≤ 0.55V (VCC = 5V) - drives LEDs, logic inputs, or small MOSFET gates directly |
| Tempco | 100ppm/°C (max) - limits reference drift to ±0.87mV over full temperature range |
| Capacitive Load Stability | Stable with 0–4.7nF on REF - allows local decoupling without oscillation risk |
Pinout & Package
The MAX9038BEBT+T is housed in a 6-bump UCSP (Ultra-Compact Silicon Package) measuring 1.5mm × 1.5mm × 0.5mm, optimized for high-density PCB layouts and portable electronics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A2 | OUT | Open-drain comparator output - requires external pull-up for logic-high assertion; sinks up to 8mA |
| A1 | VEE | Negative supply terminal - typically connected to GND in single-supply operation |
| B1 | IN+ | Noninverting comparator input - accepts rail-to-rail signals up to VCC + 0.25V |
| B3 | REF | Precision 1.23V reference output - sources/sinks up to 500μA with <4.7nF load stability |
| A3 | VCC | Positive supply input - operates from 2.5V to 5.5V; powers both comparator and reference |
| B2 | IN− | Inverting comparator input - uncommitted; externally configurable for threshold or hysteresis networks |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input range | Extends 250mV beyond supply rails - enables direct sensing of signals near VCC or GND without level shifting |
| Internal hysteresis | ±3mV - eliminates chatter on slow-moving or noisy input signals without external feedback |
| Low switching current surge | Minimal ICC transient during output transitions - reduces need for large supply bypass capacitors |
| Reference initial accuracy | ±0.4% (B grade) - eliminates factory calibration in cost-sensitive portable devices |
| UCSP package | 1.5mm × 1.5mm footprint - saves >70% board area vs. SOT23-6 while maintaining thermal performance |
Applications
| Precision Battery Monitoring | IR Receiver Signal Conditioning |
|---|---|
Use Scenario: Monitoring Li-ion cell voltage during charge/discharge cycles in wearables and medical patches. IC Role / Device Role / Timing Role: Comparator compares cell voltage against 1.23V reference to trigger low-battery alerts; reference provides stable threshold independent of supply droop. Use Value: 40μA supply current extends runtime between charges; ±0.4% reference accuracy ensures consistent alert thresholds across temperature. | Use Scenario: Demodulating pulsed IR signals from remote controls in smart home sensors. IC Role / Device Role / Timing Role: Comparator detects IR carrier envelope with rail-to-rail input handling fast signal edges; open-drain output interfaces directly to microcontroller interrupt pins. Use Value: 400ns propagation delay preserves pulse timing integrity; internal hysteresis rejects ambient light noise without external components. |
| Level Translation Interface | Digital Line Receiver |
Use Scenario: Translating 1.8V logic outputs from an MCU to 3.3V I²C bus lines in IoT edge nodes. IC Role / Device Role / Timing Role: MAX9038BEBT+T acts as unidirectional level shifter: 1.8V signal applied to IN+, 3.3V pull-up on OUT, REF tied to 1.23V for precise trip point. Use Value: Open-drain output eliminates shoot-through current; 1.23V reference enables accurate mid-rail switching between logic families. | Use Scenario: Receiving RS-232-like digital pulses from legacy industrial sensors with variable amplitude. IC Role / Device Role / Timing Role: Comparator converts analog pulse train into clean CMOS-compatible logic; REF sets fixed 1.23V decision threshold independent of supply variation. Use Value: Rail-to-rail inputs accept signals from 0V to VCC; 100ppm/°C tempco maintains timing margin over −40°C to +85°C operating range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar comparator + reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX9039BEBT+T | Same 1.23V reference, identical UCSP-6 package, but IN− internally tied to REF - fixed hysteresis configuration | Less flexible for custom hysteresis or differential sensing; suited for simple single-threshold detection only | Select MAX9039BEBT+T when IN− connection to REF simplifies layout and no external hysteresis network is needed |
| TLV4041DBVR | 1.2V reference (±0.5%), SOT23-6 package, 65μA supply current, push-pull output - no open-drain option | Higher supply current reduces battery life; push-pull output prevents wired-OR bus interfacing | Choose TLV4041DBVR only if push-pull drive and slightly lower reference voltage are acceptable trade-offs for TI ecosystem compatibility |
Compared with MAX9039BEBT+T, the MAX9038BEBT+T offers design flexibility via uncommitted IN−, enabling programmable hysteresis and differential configurations; versus TLV4041DBVR, it delivers 40% lower quiescent current and open-drain functionality essential for multi-drop bus interfaces.
Availability
MAX9038BEBT+T is available at Aetrix Electronics and suitable for precision battery management, IR receiver front-ends, and level translation interfaces requiring stable component supply and RoHS-compliant packaging.
Supply support for MAX9038BEBT+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 MAX9038–MAX9053 family was designed specifically for ultra-low-power, space-constrained applications requiring integrated precision references and rail-to-rail comparators - targeting portable instrumentation, sensor nodes, and energy-harvesting systems.
FAQ
What is the reference voltage tolerance and temperature coefficient of the MAX9038BEBT+T?
The MAX9038BEBT+T features a 1.23V reference with ±0.4% initial accuracy (B grade) and a maximum temperature coefficient of 100ppm/°C over −40°C to +85°C. This means the reference voltage drifts no more than ±0.87mV across the full operating temperature range, ensuring stable thresholding in battery-powered devices without recalibration.
Does the MAX9038BEBT+T have an open-drain or push-pull output?
The MAX9038BEBT+T has an open-drain output (pin A2), confirmed by datasheet specifications stating it sinks up to 8mA and requires an external pull-up resistor. This differs from the push-pull outputs found in MAX9040–MAX9053 variants and enables wired-OR logic, level translation, and I²C-compatible bus interfacing - a key differentiator for system-level signal routing.
What is the supply voltage range and quiescent current of the MAX9038BEBT+T?
The MAX9038BEBT+T operates from a single 2.5V to 5.5V supply and draws only 40μA of quiescent current at VCC = 5V. At 2.7V, supply current remains at 40μA - verified in Electrical Characteristics tables. This ultra-low power consumption makes it ideal for always-on monitoring circuits where battery service life is critical.
Can the MAX9038BEBT+T drive capacitive loads on its REF pin?
Yes, the MAX9038BEBT+T REF pin is stable with capacitive loads from 0 to 4.7nF, as explicitly guaranteed in the datasheet's "Capacitive-Load Stability Range" specification. This allows designers to add local ceramic decoupling (e.g., 100nF) without risk of oscillation, improving transient response during reference load steps while maintaining DC accuracy.
How does the MAX9038BEBT+T handle input signals outside the supply rails?
The MAX9038BEBT+T supports a common-mode input range from VEE − 0.25V to VCC + 0.25V, meaning it accepts inputs 250mV beyond both supply rails. However, input bias current rises exponentially when inputs exceed rails due to forward-biased internal protection diodes - so sustained overvoltage requires external clamping to avoid excessive current or damage.
MAX9038BEBT+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 6-WFBGA, WLBGA
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- with Voltage Reference
- Number of Elements:
- 1
- Output Type:
- Rail-to-Rail
- Voltage - Supply, Single/Dual (±):
- 2.5V ~ 5.5V
- :
- 1mV @ 5V
- Voltage - Input Offset (Max):
- 1pA
- Current - Input Bias (Max):
- 95mA
- Current - Output (Typ):
- 40µA
- Current - Quiescent (Max):
- 80dB CMRR, 80dB PSRR
- CMRR, PSRR (Typ):
- 450ns
- Propagation Delay (Max):
- 3mV
- Hysteresis:
- -40°C ~ 125°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 6-WLP
MAX9038BEBT+T FAQ
1.How can I place an order for MAX9038BEBT+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX9038BEBT+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 MAX9038BEBT+T reliable?
The price and inventory of MAX9038BEBT+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX9038BEBT+T is usually 5 days.
3.What payment methods are accepted for MAX9038BEBT+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX9038BEBT+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX9038BEBT+T?
MAX9038BEBT+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX9038BEBT+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 MAX9038BEBT+T?
For technical support, including MAX9038BEBT+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX9038BEBT+T requirements.
6.How does Aetrix verify that MAX9038BEBT+T is sourced from the original manufacturer or authorized distributors?
All MAX9038BEBT+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 MAX9038BEBT+T meets industry standards.
7.What is the process for return or replacement of MAX9038BEBT+T?
All MAX9038BEBT+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX9038BEBT+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 MAX9038BEBT+T part is unused and in its original packaging.
Return procedure for MAX9038BEBT+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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