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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:
- VOLTAGE REFERENCE
- Quantity:
- Payment:
- Shipping:
Inventory:2,261
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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 - designed 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, this page delivers verified specifications, SC70-3 package details, real-world load/transient behavior, and validated alternative options for precision voltage reference selection.
Technical Context
The MAX6034BEXR30-T employs a proprietary curvature-corrected bandgap core with laser-trimmed thin-film resistors to achieve stable 3.000V output across -40°C to +85°C. Its series-mode architecture eliminates external biasing resistors and supports sourcing up to 1mA and sinking up to 200µA.
Internally compensated for stability with 0–1µF capacitive loads, it draws only 95–125µA quiescent current (±16µA/V supply variation), enabling operation from VIN = 3.2V to 5.5V while maintaining <0.2% output deviation under line/load transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.000V ±0.4% (max initial error) - ensures ADC/DAC reference accuracy within 12-bit resolution over full temperature range |
| Temp Coefficient | ≤30ppm/°C (max) - limits output drift to ≤2.4mV 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 |
| Quiescent Current | 95–125µA - supports >10-year battery life in 10µA-average-power IoT sensors |
| Load Regulation | ≤1.3mV/mA sourcing, ≤8mV/mA sinking - maintains reference stability during dynamic sensor/ADC bias changes |
| Noise (0.1–10Hz) | 66µVP-P - avoids quantization noise floor degradation in 16-bit SAR ADCs |
| Capacitive Load Range | 0–1µF - allows direct connection to ADC input caps or LDO bypass without oscillation risk |
Pinout & Package
MAX6034BEXR30-T is housed in a 3-pin SC70 surface-mount package (2.0mm × 2.1mm × 0.9mm), optimized for ultra-dense PCB layouts in portable instrumentation and wearables.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Supply Voltage Input | Accepts 3.2V–5.5V input; requires no external resistor; decoupling with 0.1µF ceramic recommended near pin |
| 2 (OUT) | Reference Voltage Output | Delivers regulated 3.000V; stable without output capacitor; drives ADC references, DAC bias, or op-amp VREF |
| 3 (GND) | Ground Reference | Low-impedance return path; must be connected directly to system ground plane to minimize noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small SC70-3 package | 2.0mm × 2.1mm footprint saves >60% board area vs. SOT23-3 in portable medical sensors |
| No external compensation capacitor | Reduces BOM count and layout complexity - stable with 0–1µF load capacitance |
| Supply-current independence | Variation ≤16µA/V across 3.2–5.5V input - simplifies power budgeting in multi-rail systems |
| Low dropout at full load | 200mV max at 1mA - enables use in 3.3V systems with tight headroom (e.g., Li-ion battery discharge down to 3.2V) |
| High PSRR (76dB @ 120Hz) | Rejects ripple from switching regulators feeding mixed-signal SoCs without additional filtering |
Applications
| Hand-Held Test Equipment | Data-Acquisition Systems |
|---|---|
Use Scenario: Portable multimeter measuring 0–3V DC signals with 16-bit resolution. IC Role / Device Role / Timing Role: Primary voltage reference for SAR ADC and front-end gain calibration. Use Value: ±0.4% initial accuracy and 30ppm/°C TC ensure <0.5 LSB total error over operating temperature, eliminating field recalibration. |
Use Scenario: Industrial 4–20mA loop-powered sensor node digitizing thermocouple outputs. IC Role / Device Role / Timing Role: Stable 3.000V reference for sigma-delta ADC and cold-junction compensation circuitry. Use Value: 95–125µA supply current enables operation within 3.5mA loop budget while maintaining 14-bit effective resolution. |
| Battery-Operated Medical Sensors | Hard-Disk Drive Servo Control |
Use Scenario: Wearable ECG monitor powered by coin-cell battery (2.8–3.6V). IC Role / Device Role / Timing Role: Low-noise reference for instrumentation amplifier and ADC in analog front-end. Use Value: 66µVP-P (0.1–10Hz) noise and 200mV dropout allow direct battery connection - extends runtime by avoiding intermediate LDO. |
Use Scenario: Precision position feedback in HDD voice-coil motor control using 12-bit DACs. IC Role / Device Role / Timing Role: Reference source for DACs generating actuator drive currents. Use Value: Load regulation ≤1.3mV/mA prevents position error during rapid seek commands when DAC load current changes dynamically. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6033BEXR30-T | Same 3.000V output, ±0.4% accuracy, but higher 50ppm/°C TC and 350µA IQ | Less suitable for extended temperature industrial use; higher power disqualifies battery applications | Select MAX6034BEXR30-T when low TC and micropower are mandatory; choose MAX6033BEXR30-T only if cost is primary constraint and thermal drift acceptable |
| ADR3430ARJZ-R7 | 3.000V, ±0.1% initial accuracy, 25ppm/°C TC, but 120µA IQ and requires 1µF output cap for stability | Superior accuracy for metrology-grade designs, but larger footprint (SOT23-5) and added capacitor increase board area and BOM | Choose ADR3430ARJZ-R7 for highest-accuracy lab equipment; retain MAX6034BEXR30-T for space/power-constrained portable devices where ±0.4% meets spec |
Compared with MAX6033BEXR30-T, MAX6034BEXR30-T delivers 40% lower quiescent current and 40% better temperature coefficient - critical for battery longevity and wide-temperature stability. Against ADR3430ARJZ-R7, it trades 0.3% tighter initial accuracy for 30% smaller SC70 footprint and zero-output-capacitor operation, reducing layout overhead in miniaturized systems.
Availability
MAX6034BEXR30-T is available at Aetrix Electronics and suitable for hand-held test equipment, data-acquisition systems, and battery-operated medical sensors requiring stable component supply with guaranteed long-term continuity.
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 high-performance analog and mixed-signal ICs for precision, power, and interface applications - with emphasis on reliability and integration for demanding industrial and portable systems.
The MAX6034 family targets ultra-low-power, high-accuracy voltage reference needs in space-constrained, battery-fed instrumentation - prioritizing micropower operation, SC70 packaging, and curvature-corrected bandgap stability.
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 to 5.5V. Exceeding 5.5V may cause parametric shift or reliability degradation, even if below the 6.0V absolute limit. Always operate MAX6034BEXR30-T within its 3.2–5.5V recommended supply range for guaranteed performance.
Does MAX6034BEXR30-T require an external output capacitor?
No, MAX6034BEXR30-T is internally compensated and stable with 0–1µF output capacitance - including no capacitor. An external capacitor is optional and only beneficial for improving transient response during large load steps. Unlike many references, MAX6034BEXR30-T eliminates the need for an output capacitor, reducing BOM count and PCB area in compact designs.
What is the typical turn-on settling time for MAX6034BEXR30-T?
MAX6034BEXR30-T settles to within 0.1% of final 3.000V output in 165µs (typical) with a 50pF load capacitance at TA = +25°C. This value increases to ≤260µs at +85°C or with heavier capacitive loading. The settling time is measured from VIN reaching regulation until VOUT stabilizes - critical for wake-up timing in low-power microcontroller systems using MAX6034BEXR30-T as ADC reference.
Can MAX6034BEXR30-T sink current, and how much?
Yes, MAX6034BEXR30-T can sink up to 200µA while maintaining output regulation. This capability allows it to serve as a reference in circuits requiring bidirectional current flow - such as driving the reference input of rail-to-rail op-amps or compensating for leakage in high-impedance sensor interfaces. Sinking beyond 200µA risks output droop exceeding specification limits.
How does the supply current of MAX6034BEXR30-T vary with input voltage?
MAX6034BEXR30-T exhibits supply current variation of ≤16µA/V across its 3.2–5.5V input range - meaning IIN changes by no more than 37µA from minimum to maximum VIN. This near-constant quiescent current (95–125µA typical) simplifies power budgeting and avoids supply-induced reference drift in multi-voltage-rail systems where VIN may fluctuate.
MAX6034BEXR30-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- SC-70, SOT-323
- Series:
- -
- Packaging:
- Bulk
- 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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