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Analog Devices Inc./Maxim Integrated MAX6133AASA50+T
- Part No.:
- MAX6133AASA50+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX6133AASA50+T.pdf
- Description:
- IC VREF SERIES 0.04% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,664
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Product details
Overview
The MAX6133AASA50+T from Maxim Integrated is a precision series voltage reference delivering 5.000V output with ±0.04% initial accuracy, 3ppm/°C max temperature coefficient (−40°C to +125°C), and 200mV max dropout voltage. It draws only 40µA quiescent current and supports up to 15mA source load current, making it ideal for high-resolution ADC/DAC biasing in battery-powered instrumentation.
For engineers reviewing the MAX6133AASA50+T datasheet, MAX6133AASA50+T pinout, MAX6133AASA50+T application, or MAX6133AASA50+T equivalent, key selection criteria include guaranteed 3ppm/°C tempco over full industrial temperature range, SO-8 package compatibility, low-noise 40µVP-P (0.1Hz–10Hz), and stable operation with 0.1µF–100µF output capacitance.
Technical Context
The MAX6133AASA50+T is a bandgap-based series-mode voltage reference using laser-trimmed thin-film resistors and post-package trimming to achieve 0.04% initial accuracy. Its architecture eliminates external components required by shunt references and enables ultra-low quiescent current independent of input voltage.
It operates across a 5.2V–12.6V input range while maintaining 0.01mV/mA load regulation and 2µV/V line regulation. Thermal hysteresis is specified at 120ppm, and long-term stability is 40ppm after 1000 hours in SO package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.000V ±0.04% at +25°C - ensures 1LSB accuracy in 14-bit systems over temperature |
| Tempco | 3ppm/°C max (−40°C to +125°C) - meets <1LSB drift requirement for 16-bit converters across full range |
| Dropout Voltage | 200mV max at 10mA - enables operation from 5.2V supply with margin for LDO headroom |
| Quiescent Current | 40µA typical - extends battery life in portable 3V/5V systems without sacrificing precision |
| Noise (0.1–10Hz) | 40µVP-P - minimizes quantization error in high-resolution data acquisition |
| Load Regulation | 0.01–0.10mV/mA - maintains stability under dynamic DAC or sensor bias loads |
| Line Regulation | 2–50µV/V - rejects supply ripple in noisy industrial power rails |
Pinout & Package
MAX6133AASA50+T is housed in an 8-pin SO (SOIC-N) package per MS012 outline: 5.00mm × 4.00mm body, 1.27mm pitch, gull-wing leads. Pin 1 marked via notch or bevel; pins 1,3,7 are NC; pin 2 is IN; pin 4 is GND; pins 5,8 are internally connected (do not connect); pin 6 is OUT.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 7 | No Connection | Not bonded; may be left floating or tied to GND for mechanical stability |
| 2 | Positive Supply Input | Accepts 5.2V–12.6V; requires 0.1µF ceramic bypass capacitor placed adjacent |
| 4 | Ground Reference | Primary return path for reference output and internal bandgap core |
| 5, 8 | Internally Connected | Internal bond wires; must remain unconnected externally to avoid damage |
| 6 | Reference Output | Delivers regulated 5.000V; requires ≥0.1µF ceramic capacitor to GND for stability |
Key Features
| Feature | Design Value |
|---|---|
| Low-tempco SO package | 3ppm/°C max over −40°C to +125°C - enables single-reference calibration in wide-temp industrial sensors |
| Laser-trimmed accuracy | ±0.04% initial tolerance - eliminates system-level trimming in production test |
| Series-mode architecture | 40µA supply current independent of VIN - reduces standby power vs. shunt alternatives |
| Capacitive load stability | Stable with 0.1µF–100µF output capacitance - accommodates layout variations and transient suppression needs |
| High PSRR | −80dB at 1kHz (5V output) - suppresses switching regulator noise coupling into precision analog rails |
Applications
| Portable Data Loggers | Industrial PLC Analog I/O Modules |
|---|---|
Use Scenario: Battery-powered environmental sensor node acquiring temperature, pressure, and humidity with 14-bit ADC. IC Role / Device Role / Timing Role: Provides stable 5.000V reference for ADC conversion and microcontroller VREF input. Use Value: 3ppm/°C tempco ensures <0.5LSB error over −25°C to +70°C operating range without recalibration. | Use Scenario: DIN-rail mounted programmable logic controller with isolated 4–20mA output channels. IC Role / Device Role / Timing Role: Supplies precision reference for DAC generating analog control signals. Use Value: 0.04% initial accuracy and 40ppm/1000h long-term stability reduce field calibration frequency by >3× vs. standard references. |
| Handheld Multimeters | Medical Patient Monitoring Devices |
Use Scenario: 4½-digit handheld DMM requiring autoranging and true RMS measurement. IC Role / Device Role / Timing Role: Serves as master reference for dual-slope integrator and auto-zero amplifier stages. Use Value: 40µVP-P low-frequency noise prevents digit flicker in DC voltage measurements at 100µV resolution. | Use Scenario: Portable ECG monitor with 24-bit sigma-delta ADC sampling biopotential signals. IC Role / Device Role / Timing Role: Generates clean 5.000V reference for ADC front-end and analog signal conditioning. Use Value: 200mV dropout allows direct use from 5.5V LDO output, minimizing board space and thermal overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR4550BRZ | 5.0V output, 3ppm/°C max, 0.02% initial accuracy, SO-8, 950µA quiescent current | Higher power consumption limits use in battery-critical designs | Select when ultra-low tempco drift (0.2ppm/√kHr) outweighs quiescent current penalty |
| REF5050AIDR | 5.0V output, 3ppm/°C max, 0.05% initial accuracy, SO-8, 950µA quiescent current, integrated enable pin | Lacks low-power advantage; enable function adds control flexibility | Prefer for systems requiring software-controlled reference shutdown during sleep modes |
Compared with ADR4550BRZ and REF5050AIDR, the MAX6133AASA50+T uniquely delivers 3ppm/°C tempco with 40µA supply current-enabling precision in energy-constrained applications where alternatives draw >20× more current.
Availability
MAX6133AASA50+T is available at Aetrix Electronics and suitable for portable instrumentation, industrial process control, and medical monitoring requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for MAX6133AASA50+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, automotive, and communications applications.
The MAX6133AASA50+T belongs to Maxim's high-accuracy voltage reference product line, engineered specifically for applications requiring sub-0.1% initial tolerance and ultra-low temperature drift in compact SO-8 packaging.
FAQ
What is the maximum input voltage rating for the MAX6133AASA50+T?
The MAX6133AASA50+T has an absolute maximum input voltage of +13V with respect to GND. However, its operational input voltage range is specified from 5.2V to 12.6V for 5.000V output. Exceeding 12.6V may degrade long-term stability or cause parametric shift, even if within absolute ratings.
Does the MAX6133AASA50+T require an input bypass capacitor?
Yes-the MAX6133AASA50+T requires a 0.1µF ceramic capacitor between IN and GND for optimal line-transient performance. The datasheet specifies placement "as close to IN as possible." While the device functions without it under static conditions, omitting this capacitor degrades PSRR and increases susceptibility to supply noise.
Can the MAX6133AASA50+T drive a 10µF output capacitor?
Yes-the MAX6133AASA50+T is stable with output capacitance ranging from 0.1µF to 100µF. A 10µF ceramic or tantalum capacitor improves transient response during fast load steps, such as those seen in multiplexed sensor biasing, and reduces overshoot in DAC reference settling.
What is the thermal hysteresis specification for the MAX6133AASA50+T?
The MAX6133AASA50+T exhibits 120ppm thermal hysteresis-defined as the change in output voltage at +25°C before and after cycling from −40°C to +125°C. This value is identical for both SO and µMAX packages and reflects mechanical stress effects on the bandgap core.
Is the MAX6133AASA50+T pin-compatible with other MAX6133 variants?
Yes-all MAX6133 variants-including MAX6133AASA25+, MAX6133AASA30+, MAX6133AASA41+, and MAX6133AASA50+-share identical SO-8 pinout and footprint. Only the output voltage and grade-specific parameters (tempco, accuracy) differ; no PCB redesign is needed when substituting within the same package.
MAX6133AASA50+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):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 15 mA
- Tolerance:
- ±0.04%
- Temperature Coefficient:
- 7ppm/°C
- Noise - 0.1Hz to 10Hz:
- 40µVp-p
- Noise - 10Hz to 10kHz:
- 26µVrms
- Voltage - Input:
- 5.2V ~ 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
MAX6133AASA50+T FAQ
1.How can I place an order for MAX6133AASA50+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6133AASA50+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 MAX6133AASA50+T reliable?
The price and inventory of MAX6133AASA50+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6133AASA50+T is usually 5 days.
3.What payment methods are accepted for MAX6133AASA50+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6133AASA50+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6133AASA50+T?
MAX6133AASA50+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6133AASA50+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 MAX6133AASA50+T?
For technical support, including MAX6133AASA50+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6133AASA50+T requirements.
6.How does Aetrix verify that MAX6133AASA50+T is sourced from the original manufacturer or authorized distributors?
All MAX6133AASA50+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 MAX6133AASA50+T meets industry standards.
7.What is the process for return or replacement of MAX6133AASA50+T?
All MAX6133AASA50+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6133AASA50+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 MAX6133AASA50+T part is unused and in its original packaging.
Return procedure for MAX6133AASA50+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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