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Analog Devices Inc./Maxim Integrated MAX6133AASA41+
- Part No.:
- MAX6133AASA41+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX6133AASA41+.pdf
- Description:
- IC VREF SERIES 0.04% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,089
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Product details
Overview
MAX6133AASA41+ from Maxim Integrated is a precision series voltage reference delivering 4.096V output with ±0.04% initial accuracy (max), 3ppm/°C temperature coefficient (max, -40°C to +125°C), and 200mV maximum dropout voltage - enabling stable operation in low-headroom battery-powered systems such as portable data loggers and handheld test equipment.
For engineers reviewing the MAX6133AASA41+ datasheet, MAX6133AASA41+ pinout, MAX6133AASA41+ application, or MAX6133AASA41+ equivalent, key selection criteria include guaranteed 4.096V output tolerance over full industrial temperature range, ultra-low 45µA typical quiescent current, 15mA source capability, and SO-8 package compatibility with space-constrained PCB layouts.
Technical Context
The MAX6133AASA41+ employs bandgap-based series-mode architecture with laser-trimmed thin-film resistors and post-package trimming to achieve high initial accuracy and low thermal drift. Its internal circuitry operates as a three-terminal active regulator, sourcing load current directly from the input supply while maintaining tight output regulation.
It features built-in stability with ≥0.1µF output capacitance, supports wide 4.2V–12.6V input range, and delivers low-noise performance (32µVP-P, 0.1Hz–10Hz) critical for high-resolution ADC/DAC biasing. Line regulation is specified at ≤40µV/V and load regulation at ≤0.08mV/mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 4.096V ±0.04% (max) at +25°C - ensures 1LSB accuracy in 12-bit systems across full temperature range. |
| Tempco | 3ppm/°C (max, -40°C to +125°C) - enables ≤±0.5mV drift over 165°C span, suitable for precision instrumentation. |
| Dropout Voltage | 200mV (max) at 10mA load - allows operation from 4.2V supply while maintaining 4.096V output. |
| Quiescent Current | 45µA (typ) at +25°C - minimizes battery drain in always-on sensor nodes and portable meters. |
| Load Regulation | 0.08mV/mA (max) - maintains <±0.12mV error across full 15mA output range, supporting dynamic loads. |
| Noise (0.1–10Hz) | 32µVP-P - preserves SNR in 14-bit+ data converters without external filtering. |
| Line Regulation | 40µV/V (max) - rejects supply ripple up to 12.6V with minimal output perturbation. |
Pinout & Package
MAX6133AASA41+ is housed in an 8-pin SO (SOIC-N) package measuring 4.90mm × 3.90mm × 1.75mm (JEDEC MS-012). The device uses a standard SO-8 footprint with gull-wing leads and 1.27mm pitch.
| 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 - connect to clean system ground plane with low-inductance path. |
| 5, 8 | I.C. | Internally connected - no external connection permitted; floating or grounded pins may cause malfunction. |
| 6 | OUT | Stable 4.096V reference output - requires ≥0.1µF ceramic capacitor to GND for stability and transient response. |
Key Features
| Feature | Design Value |
|---|---|
| Low tempco grade | A-grade SO package guarantees ≤3ppm/°C drift over -40°C to +125°C - meets stringent industrial calibration requirements. |
| Ultra-low quiescent current | 45µA typical supply current - enables >10-year battery life in 10µA-average-power IoT sensors. |
| High output drive | 15mA source capability - directly drives ADC reference inputs, op-amp bias networks, and small DACs without buffering. |
| Wide input range | Operates from 4.2V to 12.6V - compatible with single Li-ion, dual alkaline, or regulated 5V/12V rails. |
| Low noise architecture | 32µVP-P (0.1–10Hz) - eliminates need for external RC filtering in precision 14-bit SAR ADC applications. |
Applications
| Portable Data Acquisition | Industrial Process Transmitters |
|---|---|
Use Scenario: Battery-powered handheld multimeter acquiring 16-bit voltage readings in field environments with ambient temperatures from -20°C to +60°C. IC Role / Device Role / Timing Role: Primary voltage reference for 16-bit sigma-delta ADC, establishing absolute measurement scale. Use Value: 3ppm/°C tempco and ±0.04% initial accuracy ensure <±0.5 LSB total error across operating range without recalibration. |
Use Scenario: 4–20mA loop-powered temperature transmitter installed in refinery control cabinets with ambient swings from -40°C to +85°C. IC Role / Device Role / Timing Role: Precision reference for DAC generating analog output and for internal ADC monitoring supply rail. Use Value: 200mV dropout enables reliable operation from 4.2V loop supply; 15mA drive supports internal circuitry and sensor excitation. |
| Medical Patient Monitor Front-End | Automotive Battery Management IC Calibration |
Use Scenario: Low-power ECG front-end module requiring stable 4.096V reference for 14-bit analog channel digitization in wearable devices. IC Role / Device Role / Timing Role: Reference source for simultaneous-sampling ADC converting biopotential signals. Use Value: 32µVP-P low-frequency noise prevents baseline wander artifacts; 45µA quiescent current extends recharge interval. |
Use Scenario: BMS microcontroller calibrating cell voltage measurement paths during production test using 4.096V reference standard. IC Role / Device Role / Timing Role: Factory-trimmed reference for automated test equipment verifying 12-bit ADC linearity and offset. Use Value: ±0.04% initial accuracy eliminates need for per-unit software correction; SO-8 package fits automated test fixture tooling. |
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 max, 100µA IQ, SO-8 - higher quiescent current and larger 100ppm thermal hysteresis. | Less suitable for battery-critical designs; better PSRR above 1kHz. | Select when higher power-supply rejection at switching frequencies is required and supply headroom exceeds 300mV. |
| ADR444BRZ | 4.096V, 3ppm/°C max, 750µA IQ, SO-8 - 17× higher quiescent current, superior long-term stability (25ppm/1000h). | Preferred for mains-powered lab equipment where stability outweighs power budget. | Choose for metrology-grade applications where 1000-hour drift must be <25ppm and supply current is unconstrained. |
Compared with REF5040AIDR and ADR444BRZ, MAX6133AASA41+ uniquely balances ultra-low 45µA quiescent current, 3ppm/°C tempco, and SO-8 compatibility - making it optimal for portable, battery-operated precision systems where every microamp counts.
Availability
MAX6133AASA41+ is available at Aetrix Electronics and suitable for portable instrumentation, industrial process transmitters, and medical patient monitor front-ends requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for MAX6133AASA41+ 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 demanding industrial, medical, and communications applications.
The MAX6133AASA41+ belongs to Maxim's high-accuracy series voltage reference product line, engineered specifically for low-power, wide-temperature-range applications where initial accuracy, thermal stability, and minimal dropout are critical design constraints.
FAQ
What is the guaranteed initial accuracy of MAX6133AASA41+ over temperature?
The MAX6133AASA41+ guarantees ±0.04% initial accuracy at +25°C and maintains ≤±0.08% total error over the full -40°C to +125°C operating range. This specification is achieved through laser trimming and post-package adjustment, ensuring consistent performance without user calibration.
Can MAX6133AASA41+ operate from a 4.2V supply while delivering full 4.096V output?
Yes - MAX6133AASA41+ has a maximum dropout voltage of 200mV at 10mA load, meaning it regulates properly down to VIN = 4.296V. At 4.2V input, it sustains 4.096V output with ≤0.1% error under light loads, making it viable for single-cell Li-ion systems with aging or discharge effects.
What output capacitance is required for stability with MAX6133AASA41+?
MAX6133AASA41+ requires a minimum 0.1µF ceramic capacitor from OUT to GND for guaranteed stability. It remains stable with output capacitances up to 100µF, allowing designers to add bulk capacitance for improved transient response in high-dynamic-load applications.
How does the 3ppm/°C temperature coefficient of MAX6133AASA41+ impact 14-bit ADC performance?
Over a 165°C span (-40°C to +125°C), the 3ppm/°C tempco produces ≤±495ppm (≈±0.5mV) output drift at 4.096V - well within ±1LSB (≈0.25mV) for a 14-bit system with 4.096V full-scale range, preserving end-to-end accuracy without software compensation.
Is MAX6133AASA41+ pin-compatible with other members of the MAX6133 family?
Yes - all MAX6133 variants including MAX6133AASA41+, MAX6133AASA25+, and MAX6133AASA50+ share identical SO-8 pinout and electrical interface. Only the output voltage and grade-specific parameters (tempco, accuracy) differ; PCB layout is fully reusable across the family.
MAX6133AASA41+ 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:
- Active
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 4.096V
- Voltage - Output (Max):
- -
- Current - Output:
- 15 mA
- Tolerance:
- ±0.04%
- 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-SOIC
MAX6133AASA41+ FAQ
1.How can I place an order for MAX6133AASA41+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6133AASA41+ 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 MAX6133AASA41+ reliable?
The price and inventory of MAX6133AASA41+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6133AASA41+ is usually 5 days.
3.What payment methods are accepted for MAX6133AASA41+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6133AASA41+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6133AASA41+?
MAX6133AASA41+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6133AASA41+ 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 MAX6133AASA41+?
For technical support, including MAX6133AASA41+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6133AASA41+ requirements.
6.How does Aetrix verify that MAX6133AASA41+ is sourced from the original manufacturer or authorized distributors?
All MAX6133AASA41+ 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 MAX6133AASA41+ meets industry standards.
7.What is the process for return or replacement of MAX6133AASA41+?
All MAX6133AASA41+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6133AASA41+, 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 MAX6133AASA41+ part is unused and in its original packaging.
Return procedure for MAX6133AASA41+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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