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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:
- VOLTAGE REFERENCE
- Quantity:
- Payment:
- Shipping:
Inventory:421
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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 supply, 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, this page delivers verified specifications, SO-8 package layout, real-world load/line regulation behavior (0.06 mV/mA, 30 µV/V), noise performance (24 µVP-P, 0.1Hz–10Hz), and validated alternatives for precision analog signal chains.
Technical Context
The MAX6133BASA30 uses bandgap-based series-mode architecture with laser-trimmed thin-film resistors and post-package trimming to achieve ±0.08% initial accuracy and low thermal hysteresis (120 ppm). Its internal circuitry enables stable operation with 0.1µF–100µF output capacitance and maintains regulation across −100µA to +15mA load current.
It features ultra-low quiescent current (40µA typ., ≤85µA over full temperature range) virtually independent of input voltage, enabling battery-powered designs. Dropout voltage remains ≤400mV at 10mA load, and PSRR exceeds −60dB up to 1kHz - critical for noisy supply environments in industrial data acquisition.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.000V ±0.024V (±0.08% at +25°C); tight tolerance ensures <1 LSB error in 14-bit systems over temperature. |
| Tempco | 5ppm/°C max (−40°C to +125°C); guarantees ≤0.015% output drift across full industrial range. |
| Dropout Voltage | 200mV max at 1mA; enables operation from 3.2V supply while maintaining regulation - critical for single-cell Li-ion systems. |
| Quiescent Current | 40µA typical, ≤85µA max (−40°C to +125°C); minimizes standby power in always-on sensor nodes. |
| Load Regulation | 0.06 mV/mA max; holds output within ±90µV over 15mA load swing - suitable for dynamic DAC reference loads. |
| Noise (0.1–10Hz) | 24 µVP-P; contributes <0.0008% RMS error in 3V full-scale 16-bit measurements. |
| Line Regulation | 30 µV/V max; rejects supply ripple better than 0.001% per volt - essential for unregulated DC-DC outputs. |
Pinout & Package
MAX6133BASA30 is housed in an 8-pin SO (SOIC-N) package measuring 4.90mm × 3.90mm × 1.75mm (JEDEC MS-012), RoHS-compliant and rated for −40°C to +125°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 7 | N.C. | No internal connection; must remain unconnected or tied to GND - no routing or pull-up required. |
| 2 | IN | Positive supply input (3.2V–12.6V); requires 0.1µF ceramic bypass capacitor placed adjacent to pin. |
| 4 | GND | Analog ground reference; star-point connection recommended to minimize noise coupling into reference path. |
| 5, 8 | I.C. | Internally connected; external connection prohibited - floating or grounded causes undefined behavior. |
| 6 | OUT | Stable 3.000V reference output; requires ≥0.1µF ceramic capacitor to GND for stability and transient response. |
Key Features
| Feature | Design Value |
|---|---|
| Low-tempco SO package | 5ppm/°C max (−40°C to +125°C) - meets tight drift requirements for portable calibration equipment. |
| Ultra-low quiescent current | 40µA typical - extends battery life >10 years in 10µA average-power IoT sensors. |
| High source capability | 15mA output current - directly drives ADC reference inputs and op-amp buffers without external gain stages. |
| Wide supply range | 3.2V to 12.6V - compatible with 3.3V, 5V, and 12V rails without LDO pre-regulation. |
| Low-noise performance | 24 µVP-P (0.1–10Hz) - preserves ENOB in 16-bit SAR ADCs with 3V reference span. |
Applications
| Portable Precision DMMs | Industrial 4–20mA Transmitters |
|---|---|
|
Use Scenario: Handheld digital multimeters requiring stable 3.000V reference for 6½-digit resolution under varying ambient temperatures and battery voltage sag. IC Role / Device Role / Timing Role: Primary voltage reference for dual-slope and sigma-delta ADC front-ends; provides ratiometric scaling for auto-ranging circuits. Use Value: ±0.08% initial accuracy and 5ppm/°C tempco ensure measurement repeatability within 0.005% over −10°C to +50°C operating range. |
Use Scenario: Loop-powered 4–20mA transmitters in hazardous area process control, where supply headroom is limited and long-term stability is mandated by SIL-2 certification. IC Role / Device Role / Timing Role: Reference source for precision current-output DACs and sensor signal conditioning amplifiers; supplies excitation for RTD bridges. Use Value: 120ppm thermal hysteresis and 40ppm/1000h long-term stability meet IEC 61298-2 long-term drift requirements for field instruments. |
| Medical Patient Monitoring | Automotive Battery Management Systems |
|
Use Scenario: ECG and pulse oximeter front-ends needing low-noise, low-power reference for 14-bit analog signal chain in battery-operated devices. IC Role / Device Role / Timing Role: Reference for anti-aliasing filter DACs and ADC reference buffers; powers rail-to-rail op-amps in biopotential amplifiers. Use Value: 24 µVP-P (0.1–10Hz) noise and 40µA quiescent current enable >90dB SNR and >7-day runtime on CR2032 coin cell. |
Use Scenario: Cell voltage monitoring ICs in 12V automotive BMS modules operating across −40°C to +105°C under engine-bay thermal cycling. IC Role / Device Role / Timing Role: Stable reference for multi-channel 12-bit SAR ADCs measuring stacked Li-ion cells; enables accurate state-of-charge calculation. Use Value: Guaranteed operation to +125°C junction temperature and 5ppm/°C tempco ensure <0.5mV absolute error per cell over full automotive temperature range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision 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; suited for cost-sensitive consumer-grade systems | Select when budget constraints outweigh precision needs and board space is critical. |
| ADR3430ARJZ-R7 | 3.0V, ±0.1% initial accuracy, 10ppm/°C tempco, SOT-23-5, 120µA IQ | Higher quiescent current and wider tempco; includes enable pin for power gating | Choose when system-level power sequencing is required and 0.1% accuracy suffices. |
Compared with REF3030AIDBZR and ADR3430ARJZ-R7, MAX6133BASA30 delivers superior initial accuracy (±0.08% vs. ±0.1–0.2%), lower tempco (5ppm/°C vs. 10–50ppm/°C), and lower IQ (40µA vs. 50–120µA), making it optimal for high-end portable test equipment and industrial transmitters where long-term stability and low drift are non-negotiable.
Availability
MAX6133BASA30 is available at Aetrix Electronics and suitable for precision regulators, A/D and D/A converters, and high-accuracy industrial process control requiring stable component supply across extended temperature ranges and long production lifecycles.
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) is a fabless semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and consumer applications.
The MAX6133 series was designed specifically for portable and communication systems demanding ultra-low power, high accuracy, and robust thermal performance in compact SO and µMAX packages.
FAQ
What is the maximum load current supported by the MAX6133BASA30?
The MAX6133BASA30 guarantees stable operation with output source currents up to 15mA. Load regulation is specified at 0.06 mV/mA max across this range, ensuring output deviation remains within ±90µV. Exceeding 15mA may degrade accuracy or cause thermal shutdown; for higher current needs, pair MAX6133BASA30 with an external buffer amplifier.
Does the MAX6133BASA30 require an input capacitor?
The MAX6133BASA30 does not require an input capacitor for basic stability, but a 0.1µF ceramic capacitor placed adjacent to the IN pin is strongly recommended to improve line-transient response and suppress supply noise. Without it, PSRR degrades above 100Hz, potentially introducing errors in sensitive ADC applications powered from switching regulators.
Can the MAX6133BASA30 be used with output capacitances larger than 0.1µF?
Yes - the MAX6133BASA30 is stable with output capacitances from 0.1µF up to 100µF. Larger capacitors (e.g., 10µF) significantly reduce load transient overshoot and improve settling time in DAC reference applications, though they increase turn-on time to ~600µs. Always place the capacitor as close as possible to the OUT and GND pins.
What is the thermal hysteresis specification for the MAX6133BASA30?
The MAX6133BASA30 exhibits 120ppm thermal hysteresis - defined as the change in output voltage at +25°C before and after cycling between −40°C and +125°C. This value is identical for both SO and µMAX packages and reflects mechanical stress effects on the bandgap core; it is included in total error budget calculations for metrology-grade instruments.
How does the MAX6133BASA30 compare to the MAX6133AASA30 in accuracy and tempco?
The MAX6133BASA30 offers ±0.08% initial accuracy and 5ppm/°C max tempco (−40°C to +125°C), whereas MAX6133AASA30 provides tighter ±0.04% accuracy and 3ppm/°C tempco in the same SO package. The "B" grade trades minor accuracy/tempco margin for cost efficiency in applications where 0.08% and 5ppm/°C fully satisfy system-level error budgets.
MAX6133BASA30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- 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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