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Analog Devices Inc./Maxim Integrated MAX6034AEXR25
- Part No.:
- MAX6034AEXR25
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX6034AEXR25.pdf
- Description:
- VOLTAGE REFERENCE
- Quantity:
- Payment:
- Shipping:
Inventory:1,789
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Product details
Overview
MAX6034AEXR25 from Maxim Integrated is a precision, micropower, low-dropout series voltage reference in SC70-3 package, delivering 2.500V ±0.2% initial accuracy, 30ppm/°C max temperature coefficient, and 200mV max dropout at 1mA load - ideal for high-resolution ADC/DAC biasing in space-constrained, battery-powered instrumentation.
For engineers reviewing the MAX6034AEXR25 datasheet, MAX6034AEXR25 pinout, MAX6034AEXR25 application, or MAX6034AEXR25 equivalent, this page provides verified electrical specs, thermal stability data, SC70-3 terminal mapping, real-world load transient behavior, and validated alternatives for precision analog signal chains requiring <100ppm/1000hr long-term drift and zero external compensation.
Technical Context
The MAX6034AEXR25 employs a proprietary curvature-corrected bandgap core with laser-trimmed thin-film resistors to achieve 30ppm/°C max TCVOUT and ±0.2% initial output tolerance across –40°C to +85°C. Its series-mode architecture eliminates external current-setting resistors and supports sourcing up to 1mA while sinking 200µA.
Internally compensated for CLOAD = 0–1µF, it delivers stable 2.500V reference with 90µA typical supply current (±16µA/V variation), 70–200mV dropout, and 80dB ripple rejection at 120Hz - enabling direct integration into low-noise, ultra-low-power sensor front-ends and portable data-acquisition systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.500V ±0.2% (2.495V–2.505V) - enables 16-bit ADC full-scale accuracy without trimming |
| Temp Coefficient | ≤30ppm/°C - ensures ≤±0.075% output drift over –40°C to +85°C operating range |
| Dropout Voltage | 70–200mV at 1mA - allows operation from 2.7V supply in 3.3V rail systems with margin |
| Supply Current | 85–115µA - ultra-low quiescent draw extends battery life in always-on monitoring nodes |
| Load Regulation | 0.22–1.0mV/mA sourcing - maintains reference stability under dynamic sensor bias loads |
| Noise (0.1–10Hz) | 55µVP-P - minimizes quantization error in high-resolution delta-sigma converters |
| Capacitive Load | Stable with 0–1µF - eliminates need for output capacitor, saving PCB area in wearables |
Pinout & Package
MAX6034AEXR25 is housed in a 3-pin SC70-3 surface-mount package (2.0mm × 2.1mm × 0.9mm), optimized for automated assembly and minimal board footprint in portable electronics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Supply Voltage Input | Accepts 2.7V–5.5V input; requires ≥200mV headroom above VOUT for regulation |
| 2 (OUT) | Reference Voltage Output | Delivers stable 2.500V; directly drives ADC REF pins or op-amp bias networks |
| 3 (GND) | Ground Reference | Low-impedance return path; must be connected to clean analog ground plane |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small SC70-3 package | 2.0mm × 2.1mm footprint - fits within tight spacing constraints of handheld medical devices |
| No external capacitor required | Internal compensation eliminates output cap - reduces BOM count and layout complexity |
| Supply-current independence | ΔIIN/ΔVIN ≤16µA/V - ensures consistent power budget across varying battery voltages |
| Low dropout at full load | 200mV max at 1mA - enables use with Li-ion cells down to 2.7V without LDO pre-regulation |
| High PSRR | 80dB at 120Hz - rejects ripple from switching regulators feeding mixed-signal SoCs |
Applications
| Portable Data Loggers | Industrial Sensor Transmitters |
|---|---|
Use Scenario: Battery-powered environmental monitors logging temperature/humidity at 100ksps using 16-bit SAR ADCs. IC Role / Device Role / Timing Role: Provides stable 2.500V reference for ADC full-scale calibration and sensor excitation circuitry. Use Value: 30ppm/°C TCVOUT and 90µA supply current enable >1-year battery life with <±0.5LSB integral nonlinearity over –25°C to +70°C. |
Use Scenario: 4–20mA loop-powered pressure transmitters with HART modulation in oil-field equipment. IC Role / Device Role / Timing Role: Supplies precision bias for bridge amplifier and ADC reference in isolated analog front-end. Use Value: 200mV dropout and 0–1µF capacitive-load stability allow direct connection to low-headroom 3.3V isolated DC/DC outputs without added regulation. |
| Medical Wearables | Test & Measurement Modules |
Use Scenario: ECG patch devices sampling biopotentials at 1kSPS with 24-bit delta-sigma ADCs. IC Role / Device Role / Timing Role: Sets reference for programmable-gain instrumentation amplifier and ADC reference rail. Use Value: 55µVP-P (0.1–10Hz) noise and 100ppm/1000hr long-term stability ensure clinical-grade baseline accuracy without recalibration. |
Use Scenario: Benchtop multimeters requiring 7½-digit resolution and auto-ranging reference switching. IC Role / Device Role / Timing Role: Serves as primary 2.500V reference for internal DACs and calibration lookup tables. Use Value: ±0.2% initial accuracy and 70mV min dropout support fast settling during range changes while maintaining traceable metrology-grade performance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR3425ARJZ-R7 | 2.5V ±0.1% initial accuracy, 10ppm/°C TCVOUT, 120µA IQ, SOT-23-5 package | Higher accuracy and lower drift but larger package and 2 extra pins for enable/trim | Select when tighter initial tolerance and lower tempco outweigh SC70-3 size and pin-count constraints |
| REF3325AIDBZR | 2.5V ±0.2% initial accuracy, 50ppm/°C TCVOUT, 65µA IQ, SOT-23-3 package | Lower quiescent current but higher tempco and 200mV dropout only specified at 10mA | Prefer for ultra-low-power sleep modes where 50ppm/°C drift is acceptable over full temperature range |
Compared with ADR3425ARJZ-R7, MAX6034AEXR25 offers identical initial accuracy in half the footprint but trades 20ppm/°C higher tempco; versus REF3325AIDBZR, it delivers superior thermal stability and guaranteed 1mA sourcing capability at same quiescent current - making it optimal for portable 16-bit data acquisition where size and dynamic load response are critical.
Availability
MAX6034AEXR25 is available at Aetrix Electronics and suitable for portable data loggers, industrial sensor transmitters, and medical wearables requiring stable component supply with guaranteed long-term availability and full traceability.
Supply support for MAX6034AEXR25 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, mixed-signal, and RF ICs for demanding industrial, medical, and communications applications.
The MAX6034 family targets precision analog signal chains in space- and power-constrained systems, delivering micropower operation, low dropout, and SC70 packaging without sacrificing accuracy or thermal stability.
FAQ
What is the minimum input voltage required for MAX6034AEXR25 to regulate at 2.500V?
The MAX6034AEXR25 requires a minimum input voltage of VOUT + 200mV = 2.7V to maintain regulation at full 1mA load. At lighter loads, dropout decreases to 70mV, allowing operation down to 2.57V - but 2.7V is the guaranteed minimum per datasheet specifications across –40°C to +85°C.
Does MAX6034AEXR25 require an external output capacitor for stability?
No, MAX6034AEXR25 is internally compensated and stable with output capacitance ranging from 0 to 1µF. An external capacitor is optional and used only to improve transient response during large load steps - not for stability - making MAX6034AEXR25 suitable for ultra-compact layouts where board space is critical.
How does the supply current of MAX6034AEXR25 vary with input voltage?
MAX6034AEXR25 exhibits supply-current variation of ≤16µA/V across its input range (2.7V–5.5V). At 2.7V input, typical IIN is 90µA; at 5.5V, it rises by no more than 45µA - remaining below 135µA. This near-constant current simplifies power budgeting in battery-powered systems with decaying supply rails.
Can MAX6034AEXR25 sink current, and what is its maximum sink capability?
Yes, MAX6034AEXR25 can sink up to 200µA while maintaining output regulation. This capability supports active pull-down of reference nodes during power-down sequencing or interfacing with current-output DACs, eliminating need for external sink transistors in precision analog circuits.
What is the long-term stability specification for MAX6034AEXR25?
MAX6034AEXR25 guarantees ≤90ppm change in output voltage after 1000 hours of operation at +25°C. This corresponds to a maximum drift of ±0.00225V over 1000 hours - critical for unattended field instruments and calibration equipment requiring infrequent recalibration.
MAX6034AEXR25 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):
- 2.5V
- Voltage - Output (Max):
- -
- Current - Output:
- 1 mA
- Tolerance:
- ±0.2%
- Temperature Coefficient:
- 30ppm/°C
- Noise - 0.1Hz to 10Hz:
- 55µVp-p
- Noise - 10Hz to 10kHz:
- 64µVrms
- Voltage - Input:
- 2.7V ~ 5.5V
- Current - Supply:
- 115µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-3
MAX6034AEXR25 FAQ
1.How can I place an order for MAX6034AEXR25 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6034AEXR25 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 MAX6034AEXR25 reliable?
The price and inventory of MAX6034AEXR25 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6034AEXR25 is usually 5 days.
3.What payment methods are accepted for MAX6034AEXR25?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6034AEXR25 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6034AEXR25?
MAX6034AEXR25 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6034AEXR25 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 MAX6034AEXR25?
For technical support, including MAX6034AEXR25 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6034AEXR25 requirements.
6.How does Aetrix verify that MAX6034AEXR25 is sourced from the original manufacturer or authorized distributors?
All MAX6034AEXR25 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 MAX6034AEXR25 meets industry standards.
7.What is the process for return or replacement of MAX6034AEXR25?
All MAX6034AEXR25 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6034AEXR25, 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 MAX6034AEXR25 part is unused and in its original packaging.
Return procedure for MAX6034AEXR25:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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