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Analog Devices Inc./Maxim Integrated MAX6133A30
- Part No.:
- MAX6133A30
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX6133A30.pdf
- Description:
- VOLTAGE REFERENCE
- Quantity:
- Payment:
- Shipping:
Inventory:2,390
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Product details
Overview
The MAX6133A30 from Maxim Integrated is a precision series-mode voltage reference delivering 3.000V output with ±0.04% initial accuracy (A-grade SO package), 3ppm/°C max temperature coefficient, and 200mV max dropout voltage - enabling high-accuracy analog signal conditioning in battery-powered instrumentation and portable data acquisition systems.
For engineers reviewing the MAX6133A30 datasheet, MAX6133A30 pinout, MAX6133A30 application, or MAX6133A30 equivalent, this page provides verified specifications, package mapping, real-world load regulation behavior (0.003–0.06 mV/mA), noise performance (24 µVP-P, 0.1Hz–10Hz), and validated alternative options for precision reference design.
Technical Context
The MAX6133A30 employs bandgap-based series architecture with post-package laser trimming of thin-film resistors, achieving 0.04% initial accuracy and 3ppm/°C tempco over –40°C to +125°C. Its low 40µA quiescent current remains stable across 3.2V–12.6V input range, minimizing power loss in supply-constrained systems.
It delivers 15mA source capability with guaranteed load regulation ≤0.06 mV/mA and line regulation ≤30 µV/V, supporting direct driving of ADC reference inputs, DAC bias networks, and precision regulator feedback nodes without external buffering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.0000 V (±0.04% initial tolerance at +25°C, A-grade SO) |
| Tempco | 3 ppm/°C max (–40°C to +125°C, A-grade SO) - enables ≤0.9 LSB drift over full range in 16-bit systems |
| Dropout Voltage | 200 mV max (at 10mA load) - supports operation from 3.2V input when outputting 3.0V |
| Quiescent Current | 40 µA typical (+25°C), ≤85 µA (–40°C to +125°C) - extends battery life in always-on sensor nodes |
| Noise (0.1–10Hz) | 24 µVP-P - suitable for 16-bit SAR ADCs requiring <1 LSB noise contribution |
| Load Regulation | 0.003–0.06 mV/mA - ensures stable reference under dynamic load changes up to 15mA |
| Line Regulation | 2–30 µV/V - maintains accuracy despite input rail variation in unregulated supplies |
Pinout & Package
MAX6133A30 is supplied in an 8-pin SO (SOICN) package measuring 4.90mm × 3.90mm × 1.75mm (max height), with gull-wing leads and 1.27mm pitch. Pin 1 is marked by a beveled corner or dot.
| 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 (3.2V–12.6V); requires 0.1µF ceramic bypass capacitor placed adjacent to pin |
| 4 | GND | Analog ground reference; low-impedance return path critical for noise performance |
| 5, 8 | I.C. | Internally connected; no external connection permitted - floating or grounded violates specification |
| 6 | OUT | Stable 3.000V reference output; minimum 0.1µF output capacitance required for stability |
Key Features
| Feature | Design Value |
|---|---|
| Low-tempco series architecture | 3ppm/°C max (–40°C to +125°C) - eliminates need for external calibration in industrial temperature ranges |
| Laser-trimmed thin-film resistors | 0.04% initial accuracy (A-grade SO) - reduces system-level trimming effort and test time |
| Ultra-low quiescent current | 40µA typical - enables >10-year battery life in 10µA sleep-mode IoT sensors |
| High load drive capability | 15mA source current - directly powers ADC reference inputs and op-amp bias networks |
| Wide input voltage range | 3.2V–12.6V - accommodates Li-ion, 5V, and 12V supply rails without LDO pre-regulation |
Applications
| Portable Precision Data Loggers | Industrial 4–20mA Transmitters |
|---|---|
Use Scenario: Battery-powered environmental sensor node logging temperature, humidity, and pressure with 16-bit resolution over –40°C to +85°C. IC Role / Device Role / Timing Role: Primary voltage reference for SAR ADC and internal LDO feedback, establishing absolute measurement scale. Use Value: 3ppm/°C tempco and 24µVP-P noise ensure <0.5 LSB total error across operating range without recalibration. |
Use Scenario: Loop-powered field transmitter converting RTD or thermocouple signals to 4–20mA output in hazardous locations. IC Role / Device Role / Timing Role: Stable excitation source for bridge sensors and reference for DAC-driven current loop controller. Use Value: 0.04% initial accuracy and 0.06mV/mA load regulation maintain mA output accuracy despite varying loop impedance. |
| Handheld Multimeters | Medical Patient Monitoring Front-Ends |
Use Scenario: 4½-digit handheld DMM with autoranging, AC/DC voltage, current, and resistance measurement. IC Role / Device Role / Timing Role: Reference for dual-slope integrator and auto-zero amplifier, defining measurement resolution and repeatability. Use Value: 120ppm thermal hysteresis and 40ppm/1000h long-term stability support metrology-grade calibration intervals. |
Use Scenario: Portable ECG/SpO₂ monitor requiring sub-µV baseline stability and low-power operation from coin cell. IC Role / Device Role / Timing Role: Reference for 24-bit delta-sigma ADC and programmable gain amplifier in analog front-end. Use Value: 40µA supply current and 3.2V min input enable direct connection to single-cell LiFePO₄ (3.2–3.6V) without efficiency loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR3430ARZ | 3.0V output, ±0.1% initial accuracy, 10ppm/°C max tempco, 65µA IQ, SOT-23-5 | Higher tempco and accuracy tolerance; smaller footprint but lower precision | Choose when board space is critical and 16-bit system accuracy is sufficient |
| REF5030IDR | 3.0V output, ±0.05% initial accuracy, 3ppm/°C max tempco, 950µA IQ, SO-8 | Same accuracy/tempco grade but 23× higher quiescent current; superior PSRR | Choose when ultra-low noise and high PSRR (>110dB) outweigh battery-life concerns |
Compared with ADR3430ARZ, MAX6133A30 offers tighter initial accuracy and lower tempco for high-resolution systems; compared with REF5030IDR, it achieves comparable precision at 1/23rd the supply current - making it optimal for energy-constrained portable instrumentation.
Availability
MAX6133A30 is available at Aetrix Electronics and suitable for portable instrumentation, industrial transmitters, and medical monitoring equipment requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for MAX6133A30 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 high-performance analog and mixed-signal ICs for precision, power, and interface applications in industrial, automotive, and communications markets.
The MAX6133 series was developed specifically for portable and battery-operated systems needing ultra-low-power, high-accuracy voltage references with minimal external components and robust thermal performance.
FAQ
What is the maximum load current supported by the MAX6133A30?
The MAX6133A30 guarantees 15mA output source current capability across its full operating temperature range (–40°C to +125°C). Load regulation is specified at ≤0.06 mV/mA, meaning output voltage deviation remains within ±0.9mV at full 15mA load - sufficient to drive most precision ADC reference inputs and op-amp bias networks without external buffers. The MAX6133A30 maintains this performance with input voltages as low as 3.2V.
Does the MAX6133A30 require external capacitors, and if so, what values?
Yes - the MAX6133A30 requires a minimum 0.1µF ceramic capacitor on both IN and OUT pins. The input capacitor must be placed adjacent to pin 2 (IN) to suppress line transients; the output capacitor (≥0.1µF, up to 100µF) ensures stability and improves transient response. These values are validated in the MAX6133A30 Typical Operating Circuit and confirmed across all output variants including MAX6133A30.
What is the thermal hysteresis specification for the MAX6133A30?
The MAX6133A30 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 MAX6133A30 datasheet. It represents a fixed offset error independent of temperature ramp rate or dwell time.
Can the MAX6133A30 be used with a 3.3V supply rail?
Yes - the MAX6133A30 operates with a minimum input voltage of 3.2V (for 3.0V output), making it fully compatible with standard 3.3V supply rails. At 3.3V input, the dropout margin is 300mV, well above the 200mV max specification, ensuring stable regulation even under worst-case load and temperature conditions. The MAX6133A30 quiescent current remains ~40µA at this input voltage.
How does the noise performance of the MAX6133A30 compare across output voltages?
The MAX6133A30 delivers 24µVP-P (0.1Hz–10Hz) output voltage noise - a value confirmed in the "ELECTRICAL CHARACTERISTICS-MAX6133_30" table. This is higher than the 16µVP-P of the 2.5V variant but lower than the 40µVP-P of the 5.0V version, following the expected scaling with output voltage. All noise figures are measured under identical conditions (CLOAD = 0.1µF, TA = +25°C) and apply strictly to the MAX6133A30.
MAX6133A30 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm 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:
- ±0.06%
- Temperature Coefficient:
- 7ppm/°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-uMAX/uSOP
MAX6133A30 FAQ
1.How can I place an order for MAX6133A30 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6133A30 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 MAX6133A30 reliable?
The price and inventory of MAX6133A30 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6133A30 is usually 5 days.
3.What payment methods are accepted for MAX6133A30?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6133A30 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6133A30?
MAX6133A30 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6133A30 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 MAX6133A30?
For technical support, including MAX6133A30 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6133A30 requirements.
6.How does Aetrix verify that MAX6133A30 is sourced from the original manufacturer or authorized distributors?
All MAX6133A30 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 MAX6133A30 meets industry standards.
7.What is the process for return or replacement of MAX6133A30?
All MAX6133A30 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6133A30, 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 MAX6133A30 part is unused and in its original packaging.
Return procedure for MAX6133A30:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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