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Analog Devices Inc./Maxim Integrated MAX6029EUK50+T
- Part No.:
- MAX6029EUK50+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX6029EUK50+T.pdf
- Description:
- IC VREF SERIES 5V SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
MAX6029EUK50+T from Maxim Integrated is a micropower, low-dropout series-mode voltage reference delivering 5.000V output with ±0.15% initial accuracy, 30ppm/°C max temperature coefficient, and ultra-low 10.5µA max supply current. It sources up to 4mA and sinks up to 1mA, operates from 5.2V to 12.6V input, and features 200mV dropout-enabling precision analog sensing in battery-powered instrumentation.
For engineers reviewing the MAX6029EUK50+T datasheet, MAX6029EUK50+T pinout, MAX6029EUK50+T application, or MAX6029EUK50+T equivalent, key selection criteria include its guaranteed 5.000V output tolerance at +25°C (4.9925V–5.0075V), stability with 0–10µF capacitive loads, no external compensation requirement, and operation across –40°C to +85°C.
Technical Context
The MAX6029EUK50+T uses a bandgap-based series architecture with internal compensation, eliminating need for external capacitors while maintaining stability under load capacitance ranging from 0 to 10µF when sourcing and up to 0.4µF when sinking. Its supply current remains tightly regulated (10.5µA max) with only 1.5µA/V variation over input voltage.
It achieves precision via trimmed output voltage and low thermal hysteresis (140ppm), with long-term stability of 150ppm over 1000 hours. The device's 90µVP-P (0.1Hz–10Hz) and 245µVRMS (10Hz–1kHz) noise performance supports high-resolution ADC/DAC biasing without additional filtering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.000V ±0.75mV at +25°C - ensures 16-bit ADC accuracy over full industrial temperature range |
| Initial Accuracy | ±0.15% max - guarantees absolute reference error ≤7.5mV at room temperature |
| Temp Coefficient | 30ppm/°C max - limits drift to ±2.25mV over –40°C to +85°C span |
| Supply Current | 10.5µA max - enables >10-year battery life in 10µA-sleep systems |
| Dropout Voltage | 200mV at 4mA load - allows operation from 5.2V supply with margin for aging/battery sag |
| Noise (10Hz–1kHz) | 245µVRMS - contributes <0.015 LSB error in 16-bit, 5V-FS SAR ADC |
| Load Regulation | 3.3–9µV/µA - maintains output stability during dynamic sensor excitation |
Pinout & Package
MAX6029EUK50+T is housed in a RoHS-compliant 5-pin SOT23 package (outline 21-0057), occupying 70% less PCB area than comparable SO-8 devices. Pin 1 = IN, Pin 2 = GND, Pins 3–4 = N.C., Pin 5 = OUT.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN | Positive supply input (5.2V–12.6V); no bypass capacitor required but 0.1µF ceramic improves transient response |
| 2 | GND | Analog ground reference; must be low-impedance connection to system ground plane |
| 3, 4 | N.C. | No internal connection; may be left floating or tied to GND for mechanical stability |
| 5 | OUT | Stable 5.000V reference output; drives capacitive loads up to 10µF without oscillation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low supply current | 10.5µA max enables multi-year operation on coin-cell batteries in portable meters |
| No external compensation | Integrated capacitor eliminates layout sensitivity and reduces BOM count by one component |
| Capacitive load stability | Stable with 0–10µF output capacitance-supports direct interface to ADC sample capacitors and filtering networks |
| Low dropout | 200mV at full 4mA load permits use with aging alkaline or Li-ion cells down to 5.2V |
| Miniature SOT23 footprint | 1.6mm × 2.9mm body saves board space in handheld medical and test equipment |
Applications
| Portable Data Loggers | Industrial Sensor Transmitters |
|---|---|
Use Scenario: Battery-powered environmental sensor node measuring temperature, humidity, and pressure with 16-bit ADC sampling every 10 seconds. IC Role / Device Role / Timing Role: Provides stable 5.000V reference for ADC conversion and microcontroller VREF input. Use Value: ±0.15% initial accuracy and 30ppm/°C drift ensure measurement repeatability within ±0.02% FS over –25°C to +70°C operating range. | Use Scenario: 4–20mA loop-powered transmitter with HART modulation, requiring precise 5V rail for signal conditioning and DAC output. IC Role / Device Role / Timing Role: Supplies regulated 5.000V reference to 12-bit DAC and op-amp front-end circuitry. Use Value: 245µVRMS noise and 38dB ripple rejection suppress supply-induced errors in analog output stage. |
| Handheld Multimeters | Medical Vital Sign Monitors |
Use Scenario: 4½-digit DMM using dual-slope integration ADC with auto-ranging and battery backup. IC Role / Device Role / Timing Role: Serves as primary voltage reference for integrator and comparator thresholds. Use Value: 140ppm thermal hysteresis and 150ppm long-term stability prevent calibration drift between field calibrations. | Use Scenario: Portable ECG monitor with low-noise analog front-end and 16-bit sigma-delta ADC sampling at 1kSPS. IC Role / Device Role / Timing Role: Delivers clean 5.000V reference to ADC and analog signal chain biasing network. Use Value: 90µVP-P (0.1Hz–10Hz) low-frequency noise minimizes baseline wander in DC-coupled biopotential measurements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR3450ARJZ-R7 | Higher 12µA typical supply current; 10ppm/°C max tempco; requires 1µF output cap for stability | Better tempco but higher quiescent draw and external cap dependency limit use in ultra-low-power designs | Select ADR3450ARJZ-R7 only if tighter tempco outweighs battery-life penalty and layout complexity |
| REF3050AIDBZR | 12ppm/°C max tempco; 50µA max supply current; 250mV dropout; stable with ≥1nF load | Higher power consumption and larger dropout reduce suitability for single-cell Li-ion or coin-cell systems | Choose REF3050AIDBZR when higher output drive (25mA) and better tempco justify increased supply current |
Compared with ADR3450ARJZ-R7 and REF3050AIDBZR, MAX6029EUK50+T offers lowest supply current (10.5µA max) and smallest footprint (SOT23), making it optimal for space-constrained, long-life battery applications where 30ppm/°C drift is acceptable.
Availability
MAX6029EUK50+T is available at Aetrix Electronics and suitable for portable instrumentation, industrial sensor transmitters, handheld multimeters, and medical vital sign monitors requiring stable component supply with guaranteed long-term availability.
Supply support for MAX6029EUK50+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, medical, and communications applications.
The MAX6029 series was developed specifically for ultra-low-power, high-accuracy voltage referencing in battery-operated portable instruments and sensor interfaces where board space and energy efficiency are critical.
FAQ
What is the maximum load current the MAX6029EUK50+T can source and sink?
The MAX6029EUK50+T can source up to 4mA and sink up to 1mA of load current while maintaining specified accuracy and stability. This capability supports direct driving of ADC reference inputs, op-amp bias networks, and low-power microcontroller VREF pins without external buffering. Exceeding these limits may cause output voltage deviation beyond the 30ppm/°C temperature coefficient specification.
Does the MAX6029EUK50+T require an external output capacitor for stability?
No, the MAX6029EUK50+T does not require an external output capacitor for stability. It is internally compensated and remains stable with capacitive loads from 0 to 10µF when sourcing current and up to 0.4µF when sinking current. Adding an output capacitor (e.g., 1µF ceramic) improves transient response during step-load changes but is optional per the datasheet.
What is the dropout voltage specification for MAX6029EUK50+T at full load?
The dropout voltage for MAX6029EUK50+T is 200mV maximum at 4mA output current. This means the device maintains regulation as long as the input voltage remains at least 5.200V (5.000V + 0.200V). Dropout is measured as the minimum VIN–VOUT differential required to hold VOUT within 0.1% of its nominal value under rated load conditions.
How does the supply current of MAX6029EUK50+T vary with input voltage?
The supply current of MAX6029EUK50+T varies by no more than 1.5µA per volt across its 5.2V to 12.6V input range. At 5.2V input, typical supply current is ~10.5µA; at 12.6V, it rises by ≤11.1µA, remaining well below the 10.5µA maximum spec. This near-constant current draw maximizes battery efficiency across varying supply conditions.
Is MAX6029EUK50+T compatible with lead-free reflow soldering processes?
Yes, MAX6029EUK50+T carries a "+" suffix indicating RoHS-compliant, lead-free packaging. It is qualified for standard Pb-free reflow profiles with peak temperatures up to +260°C and meets JEDEC J-STD-020 moisture sensitivity level 1 (MSL1), allowing unlimited floor life at ≤30°C/85% RH without dry-pack requirements.
MAX6029EUK50+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
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 4 mA
- Tolerance:
- ±0.15%
- Temperature Coefficient:
- 30ppm/°C
- Noise - 0.1Hz to 10Hz:
- 90µVp-p
- Noise - 10Hz to 10kHz:
- 245µVrms
- Voltage - Input:
- 5.2V ~ 12.6V
- Current - Supply:
- 10.5µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
MAX6029EUK50+T FAQ
1.How can I place an order for MAX6029EUK50+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6029EUK50+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 MAX6029EUK50+T reliable?
The price and inventory of MAX6029EUK50+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6029EUK50+T is usually 5 days.
3.What payment methods are accepted for MAX6029EUK50+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6029EUK50+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6029EUK50+T?
MAX6029EUK50+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6029EUK50+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 MAX6029EUK50+T?
For technical support, including MAX6029EUK50+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6029EUK50+T requirements.
6.How does Aetrix verify that MAX6029EUK50+T is sourced from the original manufacturer or authorized distributors?
All MAX6029EUK50+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 MAX6029EUK50+T meets industry standards.
7.What is the process for return or replacement of MAX6029EUK50+T?
All MAX6029EUK50+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6029EUK50+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 MAX6029EUK50+T part is unused and in its original packaging.
Return procedure for MAX6029EUK50+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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