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Analog Devices Inc./Maxim Integrated MAX6133A41+T
- Part No.:
- MAX6133A41+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX6133A41+T.pdf
- Description:
- IC VREF SERIES 0.06% 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:2,828
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Product details
Overview
MAX6133A41+T from Maxim Integrated is a high-precision, low-power, low-dropout series voltage reference delivering 4.096V output with ±0.04% initial accuracy (A-grade SO), 3ppm/°C max temperature coefficient, and 200mV max dropout voltage. It operates from 4.2V to 12.6V input, draws only 45µA typical quiescent current, and supports up to 15mA source current - ideal for precision ADC/DAC biasing in portable instrumentation.
For engineers reviewing the MAX6133A41+T datasheet, MAX6133A41+T pinout, MAX6133A41+T application, or MAX6133A41+T equivalent, key selection criteria include guaranteed 4.096V output stability over –40°C to +125°C, low 32µVP-P (0.1Hz–10Hz) noise, and SO-8 package compatibility with space-constrained industrial sensor nodes and battery-powered data loggers.
Technical Context
The MAX6133A41+T uses bandgap-based series-mode architecture with laser-trimmed thin-film resistors and post-package trimming to achieve ±0.04% initial accuracy and 3ppm/°C tempco across –40°C to +125°C. Its low 45µA supply current remains stable over 4.2V–12.6V input range, enabling direct integration into low-power microcontroller systems without external regulators.
It delivers 15mA output sourcing capability with 0.08mV/mA max load regulation and 40µV/V max line regulation, supporting dynamic loads in precision analog front-ends. The device features internal connection of pins 5 and 8 (I.C.), requires ≥0.1µF output capacitance for stability, and exhibits 800µs turn-on settling to ±0.01% of final value at 4.096V output.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 4.096V ±0.04% (A-grade SO, TA = +25°C) - enables exact 12-bit full-scale alignment in 4.096V-referenced ADCs |
| Tempco | 3ppm/°C max (–40°C to +125°C) - ensures ≤±0.5 LSB drift over full industrial temperature range in 16-bit systems |
| Dropout Voltage | 200mV max at 10mA load - allows operation from 4.2V supply while maintaining regulation, reducing system overhead |
| Quiescent Current | 45µA typical at +25°C - supports >10-year battery life in always-on sensor transmitters with 200mAh coin cells |
| Noise (0.1–10Hz) | 32µVP-P - contributes <0.08 LSB error in 16-bit 4.096V-range converters, eliminating need for external filtering |
| Load Regulation | 0.08mV/mA max - maintains <0.02% output shift across 0–15mA load variation, critical for driving ADC reference inputs |
| Line Regulation | 40µV/V max - limits output change to <160µV over 4.2–12.6V input swing, simplifying supply rail design |
Pinout & Package
MAX6133A41+T is housed in an 8-pin SO (SOICN) package measuring 4.90mm × 3.90mm × 1.75mm, compatible with standard surface-mount assembly processes and IPC-7351B footprints.
| 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 (4.2V–12.6V); requires 0.1µF ceramic bypass capacitor placed adjacent to pin |
| 4 | GND | Analog ground reference; must connect to clean, low-impedance system ground plane |
| 5, 8 | I.C. | Internally connected; externally inaccessible and must not be wired or loaded |
| 6 | OUT | 4.096V precision reference output; requires ≥0.1µF ceramic capacitor to GND for stability |
Key Features
| Feature | Design Value |
|---|---|
| Low-tempco SO packaging | 3ppm/°C max (–40°C to +125°C) - meets tight drift requirements for calibration-grade portable test equipment |
| Ultra-low quiescent current | 45µA typical - enables direct connection to microcontroller VDD rails without burdening power budget |
| High-output sourcing | 15mA capability - drives multiple ADC reference inputs or op-amp bias networks without external buffers |
| Wide input voltage range | 4.2V to 12.6V - accommodates unregulated Li-ion, 5V USB, or 12V industrial supplies without pre-regulation |
| Low-noise bandgap core | 32µVP-P (0.1–10Hz) - eliminates need for post-regulator RC filters in high-resolution data acquisition |
Applications
| Portable Precision DMMs | Industrial 4–20mA Transmitters |
|---|---|
Use Scenario: Handheld digital multimeters requiring 16-bit resolution and factory-calibrated accuracy over extended temperature ranges. IC Role / Device Role / Timing Role: Primary voltage reference for dual-slope and sigma-delta ADCs, providing stable 4.096V基准 for ratiometric measurement against internal references. Use Value: 3ppm/°C tempco and ±0.04% initial accuracy ensure pass/fail compliance with IEC 61000-4-30 Class A specifications without field recalibration. |
Use Scenario: Loop-powered 4–20mA sensors deployed in oil & gas refineries with ambient temperatures from –40°C to +85°C. IC Role / Device Role / Timing Role: Reference source for DACs generating precise current-loop setpoints and for RTD/thermocouple signal conditioning amplifiers. Use Value: 15mA sourcing capability directly powers both DAC and analog front-end, while 12.6V max input supports long cable runs with voltage drop. |
| Medical Patient Monitors | Automotive Battery Management ICs |
Use Scenario: ECG and SpO₂ modules requiring low-noise, low-drift references for analog signal chain integrity in FDA-cleared devices. IC Role / Device Role / Timing Role: Stable 4.096V reference for 16-bit SAR ADCs digitizing biopotential signals, with minimal thermal hysteresis (<120ppm). Use Value: 32µVP-P noise floor prevents degradation of SNR in sub-µV physiological measurements, meeting AAMI EC13 requirements. |
Use Scenario: High-voltage BMS units monitoring 12S–16S Li-ion packs where reference stability impacts cell voltage accuracy and SoH estimation. IC Role / Device Role / Timing Role: Precision reference for isolated ADCs measuring individual cell voltages via galvanic isolation barriers. Use Value: 200mV dropout enables operation from auxiliary 5V rails even under brownout conditions, ensuring continuous monitoring during transient faults. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF5040AIDR | 4.096V, 3ppm/°C, 100µA IQ, SO-8 - higher quiescent current, no load regulation spec | Requires external decoupling for 15mA loads; less suitable for ultra-low-power portable designs | Select when higher PSRR (>110dB) is required over battery life optimization |
| ADR444BRZ | 4.096V, 3ppm/°C, 600µA IQ, SO-8 - 13× higher supply current, superior long-term stability (50ppm/1000h) | Not viable for coin-cell applications; preferred in mains-powered lab equipment | Select when long-term drift dominates over power consumption in calibration infrastructure |
Compared with REF5040AIDR and ADR444BRZ, the MAX6133A41+T uniquely balances ultra-low 45µA quiescent current, 15mA sourcing, and 3ppm/°C tempco in a single SO-8 package - making it the optimal choice for battery-operated, high-accuracy measurement systems where supply headroom and power budget are constrained.
Availability
MAX6133A41+T is available at Aetrix Electronics and suitable for portable instrumentation, industrial 4–20mA transmitters, medical patient monitors, and automotive battery management systems requiring stable component supply with guaranteed long-term availability.
Supply support for MAX6133A41+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 MAX6133 series was developed specifically for high-accuracy, low-power voltage reference needs in portable and harsh-environment measurement systems - emphasizing tempco stability, dropout efficiency, and noise performance over broad temperature ranges.
FAQ
What is the guaranteed initial accuracy of the MAX6133A41+T at +25°C?
The MAX6133A41+T guarantees ±0.04% initial output voltage accuracy at +25°C, as specified for the A-grade SO package variant. This corresponds to ±1.64mV deviation from the nominal 4.096V output, verified by laser trimming and post-package calibration during manufacturing.
Does the MAX6133A41+T require external capacitors for stable operation?
Yes, the MAX6133A41+T requires a minimum 0.1µF ceramic capacitor between OUT and GND for stability, and a 0.1µF capacitor on the IN pin is recommended for optimal line-transient response. These capacitors must be placed as close as possible to their respective pins to minimize parasitic inductance.
What is the maximum load current the MAX6133A41+T can source while maintaining regulation?
The MAX6133A41+T is specified to source up to 15mA while maintaining output voltage regulation within its published accuracy and dropout specifications. Load regulation is guaranteed at 0.08mV/mA max, meaning output shifts by ≤1.2mV across the full 0–15mA range.
Can the MAX6133A41+T operate from a 5V supply rail?
Yes, the MAX6133A41+T operates from a minimum input voltage of 4.2V, making it fully compatible with standard 5V supply rails. At 5V input, it maintains 4.096V output with 200mV dropout margin, supporting robust operation even with ±5% supply tolerance and PCB trace drops.
How does the MAX6133A41+T's 0.1Hz–10Hz noise performance impact 16-bit ADC applications?
The MAX6133A41+T's 32µVP-P noise in the 0.1Hz–10Hz band contributes approximately 0.08 LSB of uncertainty in a 16-bit system referenced to 4.096V, well below the 1LSB threshold (63µV). This eliminates the need for additional noise-filtering circuitry in high-fidelity data acquisition paths.
MAX6133A41+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm 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:
- ±0.06%
- Temperature Coefficient:
- 7ppm/°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-uMAX/uSOP
MAX6133A41+T FAQ
1.How can I place an order for MAX6133A41+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6133A41+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 MAX6133A41+T reliable?
The price and inventory of MAX6133A41+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6133A41+T is usually 5 days.
3.What payment methods are accepted for MAX6133A41+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6133A41+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6133A41+T?
MAX6133A41+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6133A41+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 MAX6133A41+T?
For technical support, including MAX6133A41+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6133A41+T requirements.
6.How does Aetrix verify that MAX6133A41+T is sourced from the original manufacturer or authorized distributors?
All MAX6133A41+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 MAX6133A41+T meets industry standards.
7.What is the process for return or replacement of MAX6133A41+T?
All MAX6133A41+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6133A41+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 MAX6133A41+T part is unused and in its original packaging.
Return procedure for MAX6133A41+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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