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Analog Devices Inc./Maxim Integrated MAX6133BASA41+T
- Part No.:
- MAX6133BASA41+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX6133BASA41+T.pdf
- Description:
- IC VREF SERIES 0.08% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,875
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Product details
Overview
The MAX6133BASA41+T from Maxim Integrated is a precision series voltage reference delivering 4.096V output with ±0.08% initial accuracy, 5ppm/°C max temperature coefficient (−40°C to +125°C), and 200mV max dropout voltage. It operates from 4.2V to 12.6V supply, draws only 45µA typical quiescent current, and supports up to 15mA source current - ideal for high-resolution ADC/DAC biasing in portable instrumentation and industrial control systems.
For engineers reviewing the MAX6133BASA41+T datasheet, MAX6133BASA41+T pinout, MAX6133BASA41+T application, or MAX6133BASA41+T equivalent, key selection criteria include guaranteed initial accuracy over temperature, low-noise performance (32µVP-P, 0.1Hz–10Hz), load regulation (0.08mV/mA), and SO-8 package compatibility with space-constrained PCB layouts.
Technical Context
The MAX6133BASA41+T is a bandgap-based series-mode voltage reference using laser-trimmed thin-film resistors and post-package trimming to achieve ±0.08% initial accuracy and 5ppm/°C tempco over −40°C to +125°C. Its architecture eliminates external compensation components and enables stable operation with 0.1µF to 100µF output capacitance.
It features ultra-low quiescent current (45µA typ at +25°C, ≤85µA over full temperature range), wide input range (4.2V–12.6V), and robust line regulation (≤40µV/V) - enabling direct integration into battery-powered and wide-input industrial power rails without additional regulators.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 4.096V ±0.08% at +25°C - ensures precise scaling for 12-bit and 16-bit data converters requiring exact VREF alignment. |
| Initial Accuracy | ±0.08% max (B grade, SO package) - eliminates need for system-level calibration in factory-set instruments. |
| Tempco | 5ppm/°C max (−40°C to +125°C) - maintains <1LSB error across extended industrial temperature range for 14-bit systems. |
| Dropout Voltage | 200mV max at 10mA load - allows operation from 4.2V supply while delivering stable 4.096V reference. |
| Quiescent Current | 45µA typ at +25°C, ≤85µA max over temperature - extends battery life in handheld meters and sensor nodes. |
| Output Noise | 32µVP-P (0.1Hz–10Hz), 22µVRMS (10Hz–1kHz) - preserves SNR in precision analog signal chains. |
| Load Regulation | 0.08mV/mA max - ensures <0.02% output shift across full 15mA sourcing range, critical for dynamic load DAC buffers. |
Pinout & Package
MAX6133BASA41+T is housed in an 8-pin SO (SOIC-N) package per JEDEC MS-012, with 150-mil body width, 1.27mm pitch, and gull-wing leads. Pin 1 is marked by a beveled corner or notch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 7 | No Connection (N.C.) | Internally unconnected; must remain floating or tied to GND - no routing or trace required. |
| 2 | IN | Positive supply input; requires ≥4.2V min; decoupling capacitor (0.1µF ceramic) recommended adjacent to pin. |
| 4 | GND | Analog ground reference; must connect to clean, low-impedance system ground plane. |
| 5, 8 | I.C. | Internally connected; do not route externally - avoid solder bridges or test points. |
| 6 | OUT | Stable 4.096V reference output; requires ≥0.1µF ceramic capacitor to GND for stability and transient immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Low-tempco precision | 5ppm/°C max over −40°C to +125°C - meets tight drift requirements for process transmitters and calibration equipment. |
| Ultra-low quiescent current | 45µA typical - enables multi-year operation from coin-cell batteries in portable test gear. |
| Wide supply range | 4.2V to 12.6V input - eliminates need for pre-regulation when powered from 5V or 12V system rails. |
| High output drive | 15mA source capability - directly drives ADC reference inputs, op-amp gain stages, and DAC buffers without external buffers. |
| Low-noise architecture | 32µVP-P (0.1Hz–10Hz) - minimizes quantization noise floor degradation in 16-bit+ data acquisition systems. |
Applications
| Portable Precision DMMs | Industrial 4–20mA Transmitters |
|---|---|
Use Scenario: Handheld digital multimeters requiring stable 4.096V reference for 16-bit SAR ADC front-end and auto-ranging circuitry. IC Role / Device Role / Timing Role: Primary voltage reference for ADC conversion and internal calibration voltage generation. Use Value: ±0.08% initial accuracy and 5ppm/°C tempco ensure <0.02% total error over field operating temperatures without recalibration. |
Use Scenario: Loop-powered 4–20mA current transmitters in hazardous-area process control, operating from 12–24V DC supply. IC Role / Device Role / Timing Role: Precision reference for current-loop DAC and sensor signal conditioning amplifier. Use Value: 200mV dropout enables operation down to 4.2V input, allowing reliable function even during brownout conditions on 12V loop supplies. |
| Medical Patient Monitors | Automated Test Equipment (ATE) |
Use Scenario: Battery-operated ECG and SpO₂ modules needing low-power, low-noise reference for analog front-end amplifiers and ADCs. IC Role / Device Role / Timing Role: Low-drift reference for biopotential signal digitization and offset calibration. Use Value: 45µA quiescent current and 32µVP-P noise preserve battery life and maintain >80dB SNR in sub-µV biomedical signal paths. |
Use Scenario: Modular ATE systems requiring traceable, stable references for automated calibration of measurement cards and source modules. IC Role / Device Role / Timing Role: Calibration-grade reference used in self-test and metrology verification routines. Use Value: 0.08% initial accuracy and 120ppm thermal hysteresis support NIST-traceable calibration intervals exceeding 12 months. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR444BRZ | 4.096V, ±0.04% initial accuracy, 3ppm/°C tempco, 1.2mA quiescent current, SO-8 | Higher accuracy and lower tempco, but 27× higher supply current limits battery use | Select for metrology-grade calibration where power is secondary to drift performance |
| REF5040AIDR | 4.096V, ±0.05% initial accuracy, 3ppm/°C tempco, 950µA quiescent current, SO-8 | Superior long-term stability (15ppm/1000h vs. 40ppm), but higher IQ and cost | Prefer for high-reliability industrial controllers requiring >10-year stability without field recalibration |
Compared with ADR444BRZ and REF5040AIDR, the MAX6133BASA41+T delivers best-in-class power efficiency (45µA) for portable and energy-constrained systems, trading modestly higher tempco and accuracy for >20× lower quiescent current - making it optimal where battery life or thermal budget dominates specification priorities.
Availability
MAX6133BASA41+T is available at Aetrix Electronics and suitable for portable instrumentation, industrial 4–20mA transmitters, medical monitoring devices, and automated test equipment requiring stable component supply with guaranteed long-term continuity.
Supply support for MAX6133BASA41+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 precision analog, mixed-signal, and power management ICs for demanding industrial, medical, and communications applications.
The MAX6133BASA41+T belongs to Maxim's high-accuracy series voltage reference product line, engineered specifically for low-power, wide-temperature, and high-stability applications in portable and process-critical systems.
FAQ
What is the maximum load current supported by the MAX6133BASA41+T?
The MAX6133BASA41+T supports up to 15mA of output source current while maintaining specified accuracy and regulation. This is confirmed in the Electrical Characteristics table under "Output Source-Current Capability" and validated across −40°C to +125°C. Exceeding 15mA may degrade output voltage stability and increase dropout voltage beyond the 200mV maximum spec.
Does the MAX6133BASA41+T require an input bypass capacitor?
Yes - a 0.1µF ceramic capacitor placed as close as possible to the IN pin (Pin 2) is recommended for optimal line-transient performance, per the Applications Information section. While the device remains functional without it, omitting this capacitor increases susceptibility to supply noise and degrades PSRR, especially above 10kHz. The capacitor must be rated for ≥16V DC.
What is the thermal hysteresis specification for the MAX6133BASA41+T?
The MAX6133BASA41+T 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 is measured per Note 3 in the datasheet. It reflects mechanical stress effects on the bandgap core and contributes to total system uncertainty in cyclic thermal environments.
Can the MAX6133BASA41+T be used with output capacitors larger than 0.1µF?
Yes - the MAX6133BASA41+T is stable with output capacitance ranging from 0.1µF to 100µF, including ceramic, tantalum, and aluminum electrolytic types. Larger capacitors (e.g., 10µF) improve transient response to step-load changes, as shown in Typical Operating Characteristics Figure toc16. However, turn-on settling time increases proportionally, reaching ~800µs for 10µF versus ~600µs for 0.1µF at 4.096V output.
How does the MAX6133BASA41+T compare to the A-grade version (MAX6133AASA41+T)?
The MAX6133BASA41+T has ±0.08% initial accuracy and 5ppm/°C max tempco, whereas the A-grade MAX6133AASA41+T offers ±0.04% initial accuracy and 3ppm/°C max tempco - both in SO-8 packages. The B grade trades tighter specifications for cost efficiency while retaining identical pinout, supply range, noise, and output drive. Use the B grade where 0.04% tolerance margin is sufficient for system-level accuracy budgets.
MAX6133BASA41+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 4.096V
- Voltage - Output (Max):
- -
- Current - Output:
- 15 mA
- Tolerance:
- ±0.08%
- Temperature Coefficient:
- 10ppm/°C
- Noise - 0.1Hz to 10Hz:
- 32µVp-p
- Noise - 10Hz to 10kHz:
- 22µVrms
- Voltage - Input:
- 4.2V ~ 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
MAX6133BASA41+T FAQ
1.How can I place an order for MAX6133BASA41+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6133BASA41+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 MAX6133BASA41+T reliable?
The price and inventory of MAX6133BASA41+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6133BASA41+T is usually 5 days.
3.What payment methods are accepted for MAX6133BASA41+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6133BASA41+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6133BASA41+T?
MAX6133BASA41+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6133BASA41+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 MAX6133BASA41+T?
For technical support, including MAX6133BASA41+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6133BASA41+T requirements.
6.How does Aetrix verify that MAX6133BASA41+T is sourced from the original manufacturer or authorized distributors?
All MAX6133BASA41+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 MAX6133BASA41+T meets industry standards.
7.What is the process for return or replacement of MAX6133BASA41+T?
All MAX6133BASA41+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6133BASA41+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 MAX6133BASA41+T part is unused and in its original packaging.
Return procedure for MAX6133BASA41+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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