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Analog Devices Inc./Maxim Integrated MAX6133BASA30+
- Part No.:
- MAX6133BASA30+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX6133BASA30+.pdf
- Description:
- IC VREF SERIES 0.08% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,985
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Product details
Overview
MAX6133BASA30+ from Maxim Integrated is a precision series voltage reference delivering 3.000V output with ±0.08% initial accuracy, 5ppm/°C max temperature coefficient (−40°C to +125°C), and 200mV max dropout voltage. It operates from 3.2V to 12.6V input, draws only 40µA quiescent current, and supports up to 15mA source current - ideal for high-accuracy ADC/DAC biasing in portable instrumentation.
For engineers reviewing the MAX6133BASA30+ datasheet, MAX6133BASA30+ pinout, MAX6133BASA30+ application, or MAX6133BASA30+ equivalent, key selection criteria include guaranteed initial accuracy over temperature, low-noise performance (24µVP-P, 0.1Hz–10Hz), load regulation (0.06mV/mA), and SO-8 package compatibility with space-constrained industrial sensing systems.
Technical Context
The MAX6133BASA30+ uses bandgap-based series-mode architecture with laser-trimmed thin-film resistors and post-package trimming to achieve stable 3.000V output. Its internal design eliminates external compensation requirements and ensures stability with 0.1µF to 100µF output capacitance.
This device delivers rail-to-rail sourcing capability (−100µA to +15mA), exhibits excellent line regulation (≤30µV/V) and thermal hysteresis (120ppm), and maintains consistent 40µA supply current across its full 3.2V–12.6V input range - enabling reliable operation in battery-powered and wide-input industrial supplies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.000V ±0.024V at +25°C (±0.08% initial accuracy) |
| Tempco | 5ppm/°C max over −40°C to +125°C - enables ≤1LSB error in 14-bit systems across full temp range |
| Dropout Voltage | 200mV max at 10mA load - allows operation with VIN as low as 3.2V for 3V output |
| Quiescent Current | 40µA typical, ≤85µA over temperature - extends battery life in handheld meters |
| Noise (0.1–10Hz) | 24µVP-P - supports high-resolution data acquisition without added filtering |
| Load Regulation | 0.06mV/mA max - ensures <0.1mV shift from no-load to full 15mA output |
| Line Regulation | 30µV/V max - limits output drift to <90µV over full 3.2V–12.6V input range |
Pinout & Package
MAX6133BASA30+ is housed in an 8-pin SO (SOIC-N) package measuring 4.90mm × 3.90mm × 1.75mm, compliant with JEDEC MS-012. The package features gull-wing leads, 1.27mm pitch, and Pb-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 7 | N.C. | No internal connection; must remain unconnected or tied to GND per layout best practice |
| 2 | IN | Positive supply input; requires 0.1µF ceramic bypass capacitor placed adjacent to pin |
| 4 | GND | Analog ground reference; low-impedance return path essential for noise control |
| 5, 8 | I.C. | Internally connected; external connection prohibited to avoid malfunction |
| 6 | OUT | Precision 3.000V reference output; minimum 0.1µF capacitor to GND required for stability |
Key Features
| Feature | Design Value |
|---|---|
| Low-tempco SO package | 5ppm/°C max over −40°C to +125°C - tighter than µMAX variant (7ppm/°C) |
| Ultra-low quiescent current | 40µA typical, independent of VIN - enables >10-year battery life in 10µA-systems |
| High output drive | 15mA sourcing capability - directly drives ADC reference inputs and op-amp buffers |
| Wide input range | 3.2V to 12.6V operation - supports single-supply designs using 3.3V, 5V, or 12V rails |
| Low-noise output | 24µVP-P (0.1Hz–10Hz) - avoids resolution loss in 16-bit+ data converters |
Applications
| Portable Precision DMMs | Industrial 4–20mA Transmitters |
|---|---|
Use Scenario: Handheld digital multimeters requiring stable 3V reference for 16-bit SAR ADC front-end under varying battery voltage and ambient temperature. IC Role / Device Role / Timing Role: Primary voltage reference for ADC conversion and internal LDO feedback, operating in series-mode configuration. Use Value: ±0.08% initial accuracy and 5ppm/°C tempco ensure calibrated measurement integrity across −10°C to +50°C operating range without recalibration. |
Use Scenario: Loop-powered 4–20mA current transmitters in process control cabinets where supply headroom is limited and long-term stability is critical. IC Role / Device Role / Timing Role: Precision reference for DAC and sensor signal conditioning circuitry, powered directly from 24V loop with local 3.3V LDO. Use Value: 200mV dropout enables operation down to 3.2V input, while 120ppm thermal hysteresis prevents calibration drift after field temperature cycling. |
| Medical Patient Monitors | Automotive Battery Monitoring Units |
Use Scenario: ECG and SpO₂ modules requiring low-noise, low-power reference for analog front-end amplifiers and ADCs in battery-operated devices. IC Role / Device Role / Timing Role: Low-noise 3.000V reference source for instrumentation amplifier gain-setting and ADC reference, operating from single Li-ion cell. Use Value: 24µVP-P (0.1–10Hz) noise floor preserves signal integrity in sub-µV biomedical signals without additional filtering overhead. |
Use Scenario: 12V automotive battery voltage monitoring systems needing stable reference for microcontroller ADCs across −40°C to +125°C under engine-bay thermal stress. IC Role / Device Role / Timing Role: High-temperature-stable reference for MCU internal ADC used in state-of-charge estimation and fault detection logic. Use Value: Guaranteed 5ppm/°C tempco and 145ppm long-term stability (1000h) ensure consistent voltage measurement accuracy over vehicle lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF3030AIDBZR | 3.0V, ±0.2% initial accuracy, 50ppm/°C tempco, SOT-23-3, 50µA IQ | Lower accuracy and higher tempco; suitable only for 12-bit systems | Select when cost and board area are prioritized over precision; not recommended for ≥14-bit applications |
| ADR3430ARJZ-R7 | 3.0V, ±0.1% initial accuracy, 10ppm/°C tempco, SOT-23-5, 120µA IQ | Higher quiescent current and looser tempco; lacks guaranteed 125°C operation | Use where extended temperature qualification is not required and higher power budget exists |
Compared with REF3030AIDBZR and ADR3430ARJZ-R7, MAX6133BASA30+ provides superior initial accuracy (±0.08% vs. ±0.2%/±0.1%), lower tempco (5ppm/°C vs. 50/10ppm/°C), and guaranteed operation to +125°C - making it the only option qualified for high-reliability 14–16-bit industrial and automotive sensing.
Availability
MAX6133BASA30+ is available at Aetrix Electronics and suitable for portable instrumentation, industrial 4–20mA transmitters, and medical patient monitors requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for MAX6133BASA30+ 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 and mixed-signal ICs for industrial, medical, and communications applications, with emphasis on low-power, high-accuracy performance.
The MAX6133 series was developed specifically for high-stability, low-dropout voltage references in battery-powered and wide-temperature industrial systems - targeting applications demanding better than 0.1% accuracy and sub-10ppm/°C drift.
FAQ
What is the maximum load current supported by the MAX6133BASA30+?
The MAX6133BASA30+ supports up to +15mA output source current and can sink up to −100µA. This is specified over the full −40°C to +125°C temperature range and enables direct driving of ADC reference inputs, op-amp buffers, and small logic loads without external amplification. Exceeding 15mA may degrade output accuracy and increase dropout voltage beyond specification.
Does the MAX6133BASA30+ require an input capacitor?
The MAX6133BASA30+ does not require an input capacitor for basic operation, but a 0.1µF ceramic capacitor placed as close as possible to the IN pin is recommended for optimal line-transient performance. This capacitor reduces sensitivity to supply noise and improves rejection of fast input voltage steps - especially critical in switching power supply environments where the MAX6133BASA30+ serves as a precision reference.
What is the output voltage tolerance of the MAX6133BASA30+ at +25°C?
At +25°C, the MAX6133BASA30+ guarantees a 3.000V output within ±0.08% (±2.4mV), meaning the measured output falls between 2.9976V and 3.0024V. This initial accuracy is laser-trimmed and verified during production testing. The device also specifies tighter tolerances over temperature: ±0.024V (±0.8ppm/°C × 165°C span) for Grade B operation across −40°C to +125°C.
Can the MAX6133BASA30+ be used with output capacitance greater than 0.1µF?
Yes - the MAX6133BASA30+ is stable with output capacitance ranging from 0.1µF to 100µF, including ceramic, tantalum, and electrolytic types. Larger capacitors (e.g., 10µF) improve transient response to step load changes and reduce overshoot/undershoot, particularly in DAC reference or sensor excitation applications. However, turn-on settling time increases proportionally with capacitance, reaching ~600µs at 0.1µF and ~2ms at 10µF.
Is the MAX6133BASA30+ qualified for automotive applications?
The MAX6133BASA30+ is rated for operation from −40°C to +125°C and meets industrial reliability standards, but it is not AEC-Q200 qualified or automotive-grade screened. While widely deployed in automotive battery monitoring and infotainment subsystems, designers requiring formal automotive qualification should verify system-level compliance and consider alternatives explicitly certified to AEC-Q100 Grade 1 or Grade 0 if mandated by OEM requirements.
MAX6133BASA30+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- -
- Current - Output:
- 15 mA
- Tolerance:
- ±0.08%
- Temperature Coefficient:
- 10ppm/°C
- Noise - 0.1Hz to 10Hz:
- 24µVp-p
- Noise - 10Hz to 10kHz:
- 15µVrms
- Voltage - Input:
- 3.2V ~ 12.6V
- Current - Supply:
- 85µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX6133BASA30+ FAQ
1.How can I place an order for MAX6133BASA30+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6133BASA30+ 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 MAX6133BASA30+ reliable?
The price and inventory of MAX6133BASA30+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6133BASA30+ is usually 5 days.
3.What payment methods are accepted for MAX6133BASA30+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6133BASA30+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6133BASA30+?
MAX6133BASA30+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6133BASA30+ 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 MAX6133BASA30+?
For technical support, including MAX6133BASA30+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6133BASA30+ requirements.
6.How does Aetrix verify that MAX6133BASA30+ is sourced from the original manufacturer or authorized distributors?
All MAX6133BASA30+ 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 MAX6133BASA30+ meets industry standards.
7.What is the process for return or replacement of MAX6133BASA30+?
All MAX6133BASA30+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6133BASA30+, 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 MAX6133BASA30+ part is unused and in its original packaging.
Return procedure for MAX6133BASA30+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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