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Analog Devices Inc./Maxim Integrated MAX6034AEXR25+T
- Part No.:
- MAX6034AEXR25+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX6034AEXR25+T.pdf
- Description:
- IC VREF SERIES 0.2% SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:8,926
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Product details
Overview
MAX6034AEXR25+T from Maxim Integrated is a precision, micropower, low-dropout series voltage reference delivering 2.500V ±0.2% (max) output with 30ppm/°C (max) temperature coefficient, 200mV (max) dropout at 1mA load, and 90µA typical supply current. It operates from –40°C to +85°C in battery-powered data-acquisition systems requiring stable, space-constrained analog references.
For engineers reviewing the MAX6034AEXR25+T datasheet, MAX6034AEXR25+T pinout, MAX6034AEXR25+T application, or MAX6034AEXR25+T equivalent, this page delivers verified electrical specs, SC70-3 package details, real-world load/transient behavior, and validated alternative options for precision analog design and BOM optimization.
Technical Context
The MAX6034AEXR25+T uses a proprietary curvature-corrected bandgap core with laser-trimmed thin-film resistors to achieve ±0.2% initial accuracy and ≤30ppm/°C TC across –40°C to +85°C. Its series-mode architecture eliminates external bias resistors and supports sourcing up to 1mA and sinking up to 200µA.
Internally compensated for stability with 0–1µF capacitive loads, it requires no output capacitor-reducing board area-and maintains <16µA/V supply current variation over input voltage. Dropout is specified at 70–200mV (typ–max) at 1mA, enabling operation down to VIN = VOUT + 200mV (i.e., 2.7V min).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.500V ±0.2% (max) - ensures ≤±5mV absolute error at +25°C for 12-bit ADC reference compliance |
| Temp Coefficient | ≤30ppm/°C (max) - limits drift to ≤±2.25mV over –40°C to +85°C ambient range |
| Dropout Voltage | 70–200mV (typ–max) at 1mA - enables operation from 2.7V supply in single-cell Li-ion or 3.3V rail-scaled systems |
| Supply Current | 85–115µA (min–max) - ultra-low quiescent draw supports >10-year battery life in always-on sensors |
| Load Drive | Sources 1mA / sinks 200µA - sufficient for driving SAR ADC reference inputs and op-amp bias networks |
| Noise (0.1–10Hz) | 55µVP-P - low flicker noise preserves SNR in high-resolution (≥16-bit) data converters |
| Capacitive Load | Stable with 0–1µF - eliminates need for output capacitor, saving PCB area in wearables and portable medical devices |
Pinout & Package
MAX6034AEXR25+T is housed in a 3-pin SC70-3 surface-mount package (2.0mm × 2.1mm × 0.9mm), optimized for space-constrained PCB layouts. The package is moisture-sensitive level 1 (MSL-1) and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Supply Voltage Input | Accepts 2.7V to 5.5V input; minimum VIN = VOUT + 200mV (2.7V); decoupling with 0.1µF ceramic recommended |
| 2 (OUT) | Reference Voltage Output | Provides regulated 2.500V ±0.2%; directly drives ADC REF pins, DAC bias, or op-amp gain-setting networks |
| 3 (GND) | Ground Reference | Low-impedance return path; must be connected to clean analog 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 instrumentation |
| No external compensation cap | Eliminates 1–2 passive components and associated layout constraints in space-critical designs |
| Supply-current independence | ΔIIN/ΔVIN ≤16µA/V ensures stable current draw across input rail variations (e.g., battery discharge) |
| Low dropout at full load | 200mV max dropout at 1mA allows use with 2.7V supplies - critical for single-cell energy harvesting systems |
| High PSRR (80dB @ 120Hz) | Rejects ripple from noisy DC-DC converters, preserving reference integrity in mixed-signal SoC power domains |
Applications
| Hand-Held Multimeter | Data-Acquisition Module |
|---|---|
Use Scenario: Portable 4½-digit DMM measuring DC voltage with auto-ranging and battery operation. IC Role / Device Role / Timing Role: Primary voltage reference for 16-bit sigma-delta ADC, setting full-scale range and linearity baseline. Use Value: ±0.2% initial accuracy and 30ppm/°C TC ensure <0.02% total error over operating temperature, meeting Class II metrology requirements without calibration. |
Use Scenario: Industrial 8-channel analog input module sampling thermocouples and RTDs at 1kSPS. IC Role / Device Role / Timing Role: Shared reference for multiplexed SAR ADC and precision PGA gain-setting network. Use Value: 90µA supply current and 0–1µF load stability reduce system power and simplify layout, enabling compact DIN-rail mount design. |
| Battery-Powered Sensor Node | Hard-Disk Drive Servo Control |
Use Scenario: LoRaWAN environmental sensor node powered by CR2032 coin cell, transmitting every 10 minutes. IC Role / Device Role / Timing Role: Low-power reference for microcontroller's internal ADC and external signal conditioning. Use Value: 85µA min supply current extends battery life beyond 5 years; SC70-3 footprint minimizes PCB size for PCB-integrated antenna. |
Use Scenario: Precision position feedback loop in HDD voice-coil motor driver using 12-bit DAC for coil current control. IC Role / Device Role / Timing Role: Stable reference for DAC output scaling and analog comparator thresholds in servo loop. Use Value: 100ppm temperature hysteresis and 90ppm/1000hr long-term stability prevent drift-induced track misalignment over 5-year product lifetime. |
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, 3 ppm/°C TC (lower), 120µA supply current (higher), SOT23-3 package | Better TC and accuracy but larger footprint and higher current - suited for lab-grade instruments, not space/power-constrained nodes | Select ADR3425ARJZ-R7 when TC <10ppm/°C is mandatory and board area is secondary; MAX6034AEXR25+T preferred for portable, battery-limited designs |
| REF3025AIDBZR | 2.5V ±0.2% accuracy, 50ppm/°C TC (worse), 45µA supply current (lower), SOT23-3 package | Lower power but higher TC - acceptable for cost-sensitive industrial controls where ambient temp is stabilized | Choose REF3025AIDBZR only if supply current <50µA is critical and temperature range is limited (0°C to 70°C); MAX6034AEXR25+T offers superior TC for extended temp deployments |
Compared with ADR3425ARJZ-R7 and REF3025AIDBZR, MAX6034AEXR25+T uniquely balances ultra-low supply current (90µA), tight TC (≤30ppm/°C), and minimal SC70-3 footprint - making it optimal for miniaturized, battery-operated precision analog systems where all three parameters constrain design.
Availability
MAX6034AEXR25+T is available at Aetrix Electronics and suitable for hand-held equipment, data-acquisition systems, and battery-operated equipment requiring stable component supply with guaranteed long-term continuity.
Supply support for MAX6034AEXR25+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.
The MAX6034 family targets space- and power-constrained precision analog systems-including portable instrumentation, sensor nodes, and industrial DAQ-where low dropout, micropower operation, and SC70 packaging are essential.
FAQ
What is the minimum input voltage required for stable operation of MAX6034AEXR25+T?
The MAX6034AEXR25+T requires a minimum input voltage of VOUT + 200mV, i.e., 2.7V, to maintain regulation at 1mA load. Below this, output voltage drops nonlinearly. This 200mV dropout specification is verified across –40°C to +85°C and defines the lower limit of compatible supply rails, such as single-cell Li-ion (2.7–4.2V) or regulated 3.3V outputs with margin.
Does MAX6034AEXR25+T require an external output capacitor for stability?
No, MAX6034AEXR25+T is internally compensated and stable with 0–1µF capacitive loads - including no output capacitor. This eliminates a common BOM item and saves PCB area. An optional 1µF ceramic capacitor may be added to improve transient response during large load steps, but it is not required for loop stability per the datasheet.
How does the supply current of MAX6034AEXR25+T vary with input voltage?
MAX6034AEXR25+T exhibits supply current variation of ≤16µA/V across its input range (2.7V to 5.5V). Measured values range from 85µA (min) to 115µA (max), with typical draw at 90µA. This near-constant current simplifies power budgeting in systems with varying input rails, such as battery-powered devices undergoing discharge.
Can MAX6034AEXR25+T sink current, and what is its maximum sink capability?
Yes, MAX6034AEXR25+T can sink up to 200µA while maintaining output regulation. This capability supports active pull-down of reference nodes, biasing of current-sinking DACs, or interfacing with circuits requiring bidirectional reference loading - unlike many shunt references that only source current.
What is the long-term stability performance of MAX6034AEXR25+T?
MAX6034AEXR25+T demonstrates 90ppm drift over 1000 hours at +25°C, measured as change in output voltage under continuous bias. This long-term stability metric supports applications requiring infrequent recalibration, such as field-deployed environmental monitors or sealed industrial controllers where maintenance access is limited.
MAX6034AEXR25+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):
- 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+T FAQ
1.How can I place an order for MAX6034AEXR25+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6034AEXR25+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 MAX6034AEXR25+T reliable?
The price and inventory of MAX6034AEXR25+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6034AEXR25+T is usually 5 days.
3.What payment methods are accepted for MAX6034AEXR25+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6034AEXR25+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6034AEXR25+T?
MAX6034AEXR25+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6034AEXR25+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 MAX6034AEXR25+T?
For technical support, including MAX6034AEXR25+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6034AEXR25+T requirements.
6.How does Aetrix verify that MAX6034AEXR25+T is sourced from the original manufacturer or authorized distributors?
All MAX6034AEXR25+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 MAX6034AEXR25+T meets industry standards.
7.What is the process for return or replacement of MAX6034AEXR25+T?
All MAX6034AEXR25+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6034AEXR25+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 MAX6034AEXR25+T part is unused and in its original packaging.
Return procedure for MAX6034AEXR25+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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