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Analog Devices Inc./Maxim Integrated MAX6034BEXR30+T
- Part No.:
- MAX6034BEXR30+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX6034BEXR30+T.pdf
- Description:
- IC VREF SERIES 0.4% SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:6,959
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Product details
Overview
MAX6034BEXR30+T from Maxim Integrated is a precision, low-dropout, micropower series voltage reference delivering 3.000V output with ±0.4% initial accuracy, 30ppm/°C (max) temperature coefficient, and 200mV (max) dropout at 1mA load current. It operates from −40°C to +85°C in the ultra-compact 3-pin SC70 package and is optimized for high-accuracy analog signal chains in space-constrained, battery-powered systems.
For engineers reviewing the MAX6034BEXR30+T datasheet, MAX6034BEXR30+T pinout, MAX6034BEXR30+T application, or MAX6034BEXR30+T equivalent, key selection criteria include output voltage tolerance, thermal drift performance, supply-current stability across input voltage, dropout behavior under sourcing/sinking loads, and SC70 footprint compatibility in portable instrumentation and data-acquisition designs.
Technical Context
The MAX6034BEXR30+T employs a proprietary curvature-corrected bandgap core with laser-trimmed thin-film resistors to achieve tight initial accuracy and low temperature coefficient. Its series-mode architecture eliminates external biasing resistors and supports operation with zero output capacitance while remaining stable up to 1µF load capacitance.
This device draws only 95–125µA quiescent supply current with ≤16µA/V variation over input voltage (VIN = VOUT + 0.2V to 5.5V), enabling predictable power budgeting in low-power systems. It sources up to 1mA and sinks up to 200µA while maintaining regulation within 0.2% of nominal output voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.000V ±0.4% (max) at +25°C - ensures ADC/DAC reference accuracy within 12-bit resolution over full temperature range |
| Temp Coefficient | ≤30ppm/°C (max) - limits output drift to <±0.9mV over −40°C to +85°C ambient swing |
| Dropout Voltage | ≤200mV at 1mA load - enables operation from 3.2V supply in 3.3V systems with margin |
| Supply Current | 95–125µA typical, ≤16µA/V variation - simplifies battery-life calculation and reduces LDO sizing burden |
| Load Drive | Sources 1mA / sinks 200µA - supports direct driving of SAR ADC references and op-amp bias networks |
| Capacitive Load | Stable with 0–1µF - eliminates mandatory output capacitor, saving PCB area in wearables and sensor nodes |
| Operating Temp | −40°C to +85°C - qualified for industrial and automotive cabin-temperature applications |
Pinout & Package
MAX6034BEXR30+T is housed in a 3-pin SC70 surface-mount package (2.0mm × 2.1mm × 0.9mm), optimized for high-density layouts and reflow-compatible assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Supply Input | Accepts 3.2V to 5.5V input; requires no external resistor; decoupling with 0.1µF ceramic recommended near pin |
| 2 (OUT) | Reference Output | 3.000V precision output; directly connects to ADC REF+, DAC VREF, or op-amp gain-setting node |
| 3 (GND) | Analog Ground | Must be connected to clean system ground plane; separate from digital ground if noise-sensitive layout |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small SC70 package | 2.0mm × 2.1mm footprint saves >60% board area vs. SOT23-3 in portable medical sensors |
| No output capacitor required | Eliminates BOM cost and placement error risk; simplifies layout for single-layer PCBs |
| Supply-current independence | ≤16µA/V variation allows stable current draw across Li-ion battery discharge (3.0V–4.2V) |
| Low dropout at full load | 200mV max dropout enables use with buck regulators set to 3.2V, improving system efficiency |
| Curvature-corrected bandgap | Enables 30ppm/°C TC without external trimming components or calibration firmware |
Applications
| Hand-Held Multimeter | Data-Acquisition Module |
|---|---|
Use Scenario: Portable 4½-digit DMM measuring DC voltage with 100µV resolution over −10°C to +50°C ambient. IC Role / Device Role / Timing Role: Primary voltage reference for 24-bit sigma-delta ADC, providing stable 3.000V reference independent of battery voltage sag. Use Value: ±0.4% initial accuracy and 30ppm/°C TC ensure <±0.01% total reference error across operating range-meeting Class II metrology requirements. |
Use Scenario: Industrial 8-channel analog input module sampling thermocouples and RTDs at 1ksps per channel. IC Role / Device Role / Timing Role: Shared reference source for multiplexed ADC front-end, minimizing channel-to-channel gain mismatch. Use Value: 1µF capacitive-load stability allows local 100nF ceramic + 1µF tantalum filtering at each ADC, reducing noise without destabilizing reference. |
| Battery-Powered Sensor Node | Hard-Disk Drive Servo Control |
Use Scenario: LoRaWAN environmental sensor node powered by CR2032 coin cell, transmitting every 5 minutes. IC Role / Device Role / Timing Role: Reference for low-power SAR ADC measuring humidity and pressure; active only during measurement burst. Use Value: 95µA quiescent current and no mandatory output cap extend battery life beyond 2 years; fast 165µs turn-on settling enables short wake-up windows. |
Use Scenario: Precision position feedback loop in 2.5-inch HDD actuator arm control circuitry. IC Role / Device Role / Timing Role: Stable reference for DAC generating voice-coil motor drive voltage in closed-loop servo amplifier. Use Value: 100ppm temperature hysteresis and 90ppm/1000hr long-term stability prevent calibration drift between factory tuning and field operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR3430ARJZ-R7 | 3.0V output, ±0.1% initial accuracy, 20ppm/°C TC, 125µA IQ, SOT23-3 package | Higher accuracy and lower TC, but larger SOT23 footprint and requires 1µF output cap for stability | Select when tighter initial tolerance and thermal drift are critical, and board space permits SOT23 |
| REF3030AIDBZR | 3.0V output, ±0.2% initial accuracy, 50ppm/°C TC, 45µA IQ, SOT23-3 package | Lower quiescent current but higher TC and looser initial spec; not stable without output capacitor | Select for ultra-low-power applications where 50ppm/°C TC is acceptable and output cap is already present |
Compared with ADR3430ARJZ-R7 and REF3030AIDBZR, the MAX6034BEXR30+T provides the smallest footprint (SC70), guaranteed stability without output capacitance, and balanced trade-offs among accuracy, TC, and supply current-making it optimal for miniaturized, capacitor-free, industrial-grade analog front-ends.
Availability
MAX6034BEXR30+T is available at Aetrix Electronics and suitable for hand-held equipment, data-acquisition systems, and battery-operated equipment requiring stable component supply with consistent parametric performance across production lots.
Supply support for MAX6034BEXR30+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 industrial, medical, and communications applications.
The MAX6034 family was developed to deliver high-accuracy, low-power, space-efficient voltage references for portable and battery-critical systems-addressing the need for SC70-packaged references with no external compensation and robust load-drive capability.
FAQ
What is the maximum input voltage rating for MAX6034BEXR30+T?
The absolute maximum input voltage for MAX6034BEXR30+T is +6.0V referenced to GND. However, the functional operating range is specified from (VOUT + 0.2V) = 3.2V up to 5.5V. Operation above 5.5V violates the guaranteed electrical characteristics and may impact reliability or long-term stability of the MAX6034BEXR30+T.
Does MAX6034BEXR30+T require an output capacitor for stability?
No, MAX6034BEXR30+T is internally compensated and stable with 0µF output capacitance. It remains stable with load capacitance up to 1µF, making external output capacitors optional. Adding capacitance improves transient response but is never required-this feature directly benefits space-constrained designs using the MAX6034BEXR30+T.
How does the supply current of MAX6034BEXR30+T vary with input voltage?
MAX6034BEXR30+T exhibits ≤16µA/V variation in supply current across its input voltage range (3.2V to 5.5V), with typical quiescent current of 95–125µA. This near-constant current draw simplifies power modeling and enables accurate battery-life estimation in systems powered by varying sources such as aging Li-ion cells or unregulated wall adapters feeding the MAX6034BEXR30+T.
Can MAX6034BEXR30+T sink current, and how much?
Yes, MAX6034BEXR30+T can sink up to 200µA while maintaining output regulation within specification. This capability allows it to interface directly with current-sinking DACs, op-amp summing junctions, or pull-down networks without additional buffering-enabling compact, low-component-count analog signal paths using the MAX6034BEXR30+T as a bidirectional reference node.
What is the temperature hysteresis specification for MAX6034BEXR30+T?
The temperature hysteresis of MAX6034BEXR30+T is 100ppm, defined as the change in output voltage at +25°C before and after cycling the device from −40°C to +85°C. This parameter reflects mechanical stress effects on the bandgap core and contributes to total system uncertainty in applications requiring repeated thermal cycling, such as field-deployed test equipment using the MAX6034BEXR30+T.
MAX6034BEXR30+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- SC-70, SOT-323
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- -
- Current - Output:
- 1 mA
- Tolerance:
- ±0.4%
- Temperature Coefficient:
- 75ppm/°C
- Noise - 0.1Hz to 10Hz:
- 66µVp-p
- Noise - 10Hz to 10kHz:
- 80µVrms
- Voltage - Input:
- 3.2V ~ 5.5V
- Current - Supply:
- 125µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-3
MAX6034BEXR30+T FAQ
1.How can I place an order for MAX6034BEXR30+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6034BEXR30+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 MAX6034BEXR30+T reliable?
The price and inventory of MAX6034BEXR30+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6034BEXR30+T is usually 5 days.
3.What payment methods are accepted for MAX6034BEXR30+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6034BEXR30+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6034BEXR30+T?
MAX6034BEXR30+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6034BEXR30+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 MAX6034BEXR30+T?
For technical support, including MAX6034BEXR30+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6034BEXR30+T requirements.
6.How does Aetrix verify that MAX6034BEXR30+T is sourced from the original manufacturer or authorized distributors?
All MAX6034BEXR30+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 MAX6034BEXR30+T meets industry standards.
7.What is the process for return or replacement of MAX6034BEXR30+T?
All MAX6034BEXR30+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6034BEXR30+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 MAX6034BEXR30+T part is unused and in its original packaging.
Return procedure for MAX6034BEXR30+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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