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Analog Devices Inc./Maxim Integrated MAX6037BAUKADJ+T
- Part No.:
- MAX6037BAUKADJ+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6037BAUKADJ+T.pdf
- Description:
- IC VREF SERIES ADJ SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,325
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Product details
Overview
MAX6037BAUKADJ+T from Maxim Integrated is an adjustable, low-dropout, micropower voltage reference IC with active-low shutdown, delivering 1.184V to 5V output via external resistor divider. It operates from 2.5V to 5.5V supply, consumes ≤275µA quiescent current, achieves ±0.3% initial accuracy and 50ppm/°C max temperature coefficient, and supports ±5mA load current - ideal for precision battery-powered sensor front-ends and portable medical instrumentation.
For engineers reviewing the MAX6037BAUKADJ+T datasheet, MAX6037BAUKADJ+T pinout, MAX6037BAUKADJ+T application, or MAX6037BAUKADJ+T equivalent, key selection criteria include its adjustable output range, automotive-grade -40°C to +125°C operation, 500nA max shutdown current, SOT23-5 package compatibility, and stability with 0.02µF–1µF capacitive loads.
Technical Context
The MAX6037BAUKADJ+T is a series-mode bandgap voltage reference with internal trimming for ±0.3% initial accuracy and guaranteed 50ppm/°C max temperature coefficient over full automotive temperature range. Its ADJ pin enables precise output setting using external resistors, while the active-low SHDN input reduces supply current to ≤500nA in disabled state.
It features low dropout (≤410mV at 5mA), high PSRR (>60dB at 1kHz), and stable operation into capacitive loads from 0.02µF to 1µF without requiring output phase compensation. The device draws only 200–250µA quiescent current and maintains regulation across 2.5V–5.5V input, making it suitable for low-voltage, low-power analog signal chains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage Range | 1.184V to 5V, adjustable via external resistor divider on ADJ pin |
| Initial Accuracy | ±0.3% at +25°C - ensures tight tolerance in precision ADC/DAC biasing |
| Tempco | 50ppm/°C max - supports 12-bit system accuracy over -40°C to +125°C |
| Quiescent Current | 275µA max - enables multi-year battery life in always-on monitoring systems |
| Shutdown Current | 500nA max - allows ultra-low-power sleep modes in portable equipment |
| Dropout Voltage | 410mV max at 5mA - permits operation from single Li-ion or 3.3V rails with margin |
| Load Drive | ±5mA sourcing/sinking - directly drives ADC reference inputs and op-amp bias networks |
Pinout & Package
The MAX6037BAUKADJ+T is housed in a lead-free 5-pin SOT23-5 package (U5-2 code, top mark AEIY), optimized for space-constrained PCB layouts and automotive thermal cycling.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - ADJ | Adjustment node for output voltage divider | Connects to center tap of R1–R2 network; sets VOUT = 1.184V × (1 + R1/R2); bias current < 50nA |
| 2 - GND | Analog ground reference | Low-impedance return path for reference core and load current; must be star-connected to minimize noise |
| 3 - SHDN | Active-low shutdown control | Pull ≤0.7V to disable output; draws < 500nA; connect to IN for normal operation |
| 4 - IN | Supply voltage input | Accepts 2.5V–5.5V; requires 0.1µF bypass capacitor to GND for stability |
| 5 - OUT | Precision reference voltage output | Delivers regulated voltage; stable with 0.02µF–1µF ceramic output capacitor |
Key Features
| Feature | Design Value |
|---|---|
| Adjustable Output (1.184V–5V) | Enables single BOM part to support multiple system voltage requirements without redesign |
| 50ppm/°C Tempco (Grade B) | Guarantees < 0.06% output drift over full automotive temperature range |
| 500nA Max Shutdown Current | Reduces system standby power to nanoampere level - critical for energy harvesting nodes |
| SOT23-5 Automotive Package | Validated for -40°C to +125°C operation with qualified board-level reliability |
| Capacitive-Load Stability (0.02–1µF) | Eliminates need for external compensation, simplifying layout and reducing BOM count |
Applications
| Portable Medical Sensors | Wireless Sensor Nodes |
|---|---|
|
Use Scenario: Battery-powered ECG front-end with 16-bit SAR ADC requiring stable 2.048V reference. IC Role / Device Role / Timing Role: Precision voltage reference for ADC conversion accuracy and offset calibration. Use Value: ±0.3% initial accuracy and 50ppm/°C tempco ensure < 1 LSB error over full operating temperature range. |
Use Scenario: LoRaWAN environmental node measuring temperature/humidity with ultra-low duty cycle. IC Role / Device Role / Timing Role: Reference source for analog sensor conditioning and ADC during brief active periods. Use Value: 500nA shutdown current extends coin-cell battery life beyond 5 years in 1-minute wake-up intervals. |
| Precision Data Acquisition | Automotive Body Control Modules |
|
Use Scenario: Industrial DAQ module digitizing 4–20mA loop signals with 24-bit delta-sigma ADC. IC Role / Device Role / Timing Role: Low-noise, low-drift reference for sigma-delta modulator and PGA gain-setting. Use Value: 15µVRMS (10Hz–1kHz) noise and 0.02%/mA load regulation preserve ENOB in high-resolution measurements. |
Use Scenario: In-cabin occupancy sensor using analog IR photodiode array with microcontroller ADC. IC Role / Device Role / Timing Role: Stable reference for ratiometric measurement against supply rail variations. Use Value: 0.013%/V line regulation and -40°C to +125°C qualification ensure consistent performance across vehicle lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6037AAUKADJ+T | ±0.2% initial accuracy, 25ppm/°C tempco - tighter spec grade | Better suited for 16-bit+ data acquisition where long-term drift matters | Select when higher accuracy justifies cost premium; same pinout and footprint |
| ADR3412ARJZ-R7 | Fixed 1.2V output, ±0.1% accuracy, 30ppm/°C, 190µA IQ, SOT23-5 | Lacks adjustability and shutdown; optimized for lowest noise in fixed-rail systems | Choose for cost-sensitive, fixed-voltage designs where ADJ functionality is unnecessary |
Compared with MAX6037AAUKADJ+T, the MAX6037BAUKADJ+T trades 0.1% accuracy and 25ppm/°C tempco for lower cost, while ADR3412ARJZ-R7 offers superior noise and accuracy but forfeits adjustability and shutdown - making MAX6037BAUKADJ+T optimal for balanced performance in programmable, battery-aware systems.
Availability
MAX6037BAUKADJ+T is available at Aetrix Electronics and suitable for portable medical sensors, wireless sensor nodes, precision data acquisition systems, and automotive body control modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6037BAUKADJ+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, mixed-signal, and power management ICs for demanding industrial, automotive, and medical applications.
The MAX6037 family delivers micropower, high-accuracy voltage references with shutdown and adjustable outputs - engineered specifically for battery-operated, space-constrained, and automotive-qualified systems.
FAQ
What output voltage range does the MAX6037BAUKADJ+T support?
The MAX6037BAUKADJ+T supports an adjustable output voltage range from 1.184V to 5V, set by an external resistor divider connected between OUT, ADJ, and GND. The internal reference voltage at the ADJ pin is 1.184V, and VOUT = 1.184V × (1 + R1/R2). This flexibility allows one MAX6037BAUKADJ+T variant to replace multiple fixed-output references in diverse designs.
What is the maximum load current the MAX6037BAUKADJ+T can source or sink?
The MAX6037BAUKADJ+T can source and sink up to ±5mA of load current while maintaining regulation and specified accuracy. At 5mA sourcing, dropout voltage remains ≤410mV, enabling reliable operation even under moderate load conditions typical in ADC reference buffers and op-amp bias circuits.
How does the shutdown function work on the MAX6037BAUKADJ+T?
The MAX6037BAUKADJ+T features an active-low SHDN pin (Pin 3). Pulling SHDN ≤0.7V disables the output and reduces supply current to ≤500nA (typically 50pA). For normal operation, SHDN must be tied to IN. Logic thresholds are specified over full input voltage range (2.5V–5.5V), ensuring robust interfacing with microcontrollers and PMICs.
Is the MAX6037BAUKADJ+T qualified for automotive temperature range?
Yes, the MAX6037BAUKADJ+T is fully specified and tested over the -40°C to +125°C automotive temperature range. All electrical parameters - including initial accuracy (±0.3%), tempco (50ppm/°C), quiescent current (≤275µA), and shutdown current (≤500nA) - are guaranteed across this range, meeting AEC-Q100 stress test requirements for automotive body electronics.
What capacitor values ensure stable operation of the MAX6037BAUKADJ+T?
The MAX6037BAUKADJ+T is stable with output capacitors ranging from 0.02µF to 1µF - covering common ceramic values like 0.1µF (standard bypass) and 1µF (low-frequency ripple suppression). Input capacitance of 0.1µF to 1µF on the IN pin is also required. No external compensation components are needed, simplifying design and reducing bill-of-materials.
MAX6037BAUKADJ+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- SC-74A, SOT-753
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Reference Type:
- Series
- Output Type:
- Adjustable
- Voltage - Output (Min/Fixed):
- 1.184V
- Voltage - Output (Max):
- 5 V
- Current - Output:
- 5 mA
- Tolerance:
- ±0.3%
- Temperature Coefficient:
- 50ppm/°C
- Noise - 0.1Hz to 10Hz:
- 6µVp-p
- Noise - 10Hz to 10kHz:
- 15µVrms
- Voltage - Input:
- 2.5V ~ 5.5V
- Current - Supply:
- 250µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
MAX6037BAUKADJ+T FAQ
1.How can I place an order for MAX6037BAUKADJ+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6037BAUKADJ+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 MAX6037BAUKADJ+T reliable?
The price and inventory of MAX6037BAUKADJ+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6037BAUKADJ+T is usually 5 days.
3.What payment methods are accepted for MAX6037BAUKADJ+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6037BAUKADJ+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6037BAUKADJ+T?
MAX6037BAUKADJ+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6037BAUKADJ+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 MAX6037BAUKADJ+T?
For technical support, including MAX6037BAUKADJ+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6037BAUKADJ+T requirements.
6.How does Aetrix verify that MAX6037BAUKADJ+T is sourced from the original manufacturer or authorized distributors?
All MAX6037BAUKADJ+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 MAX6037BAUKADJ+T meets industry standards.
7.What is the process for return or replacement of MAX6037BAUKADJ+T?
All MAX6037BAUKADJ+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6037BAUKADJ+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 MAX6037BAUKADJ+T part is unused and in its original packaging.
Return procedure for MAX6037BAUKADJ+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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