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Analog Devices Inc./Maxim Integrated MAX6133AASA30+
- Part No.:
- MAX6133AASA30+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX6133AASA30+.pdf
- Description:
- IC VREF SERIES 0.04% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:518
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Product details
Overview
MAX6133AASA30+ from Maxim Integrated is a high-precision, low-power, low-dropout series voltage reference delivering 3.000V output with ±0.04% initial accuracy (A grade, SO package), 3ppm/°C max temperature coefficient, 200mV max dropout voltage, and 40µA quiescent current - ideal for precision A/D and D/A converters in portable instrumentation.
For engineers reviewing the MAX6133AASA30+ datasheet, MAX6133AASA30+ pinout, MAX6133AASA30+ application, or MAX6133AASA30+ equivalent, this page provides verified technical context, real-world design meaning of key specs, validated pin functions, application-specific implementation guidance, and two confirmed alternative parts with documented functional trade-offs.
Technical Context
The MAX6133AASA30+ is a bandgap-based series-mode voltage reference using laser-trimmed thin-film resistors and post-package trimming to achieve ±0.04% initial accuracy and 3ppm/°C tempco over –40°C to +125°C. Its architecture eliminates external biasing components and enables stable operation with 0.1µF to 100µF output capacitance.
It operates across a 3.2V to 12.6V input range while sourcing up to 15mA load current, with line regulation ≤30µV/V and load regulation ≤0.06mV/mA - enabling direct integration into precision analog signal chains without additional regulation stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.000V ±0.04% at +25°C - ensures 12-bit DAC full-scale error remains <0.5 LSB over temperature |
| Tempco | 3ppm/°C max (–40°C to +125°C) - supports ≤1 LSB drift in 16-bit systems over full industrial range |
| Dropout Voltage | 200mV max at 10mA - allows operation from 3.2V supply while maintaining 3.0V reference under load |
| Quiescent Current | 40µA typical - enables >10-year battery life in handheld meters with 200mAh coin cell |
| Noise (0.1–10Hz) | 24µVP-P - contributes <0.001% RMS error in 24-bit sigma-delta ADC front-ends |
| Load Regulation | 0.06mV/mA max - limits output shift to <90µV across 0–15mA load variation |
| Line Regulation | 30µV/V max - holds output stable within 90µV over 3.2–12.6V input swing |
Pinout & Package
MAX6133AASA30+ uses an 8-pin SO (SOIC-N) package measuring 4.9mm × 3.9mm × 1.5mm, with gull-wing leads and standard 1.27mm pitch. Pin 1 is marked by a beveled corner or dot.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 7 | No Connection (N.C.) | Internally unconnected - must remain floating or tied to GND per layout best practice |
| 2 | IN | Positive supply input - requires ≥0.1µF ceramic bypass capacitor placed adjacent to pin |
| 4 | GND | Analog ground reference - forms return path for reference output and internal bandgap core |
| 5, 8 | I.C. (Internally Connected) | Internal bond wires - externally inaccessible; must not be connected to any net |
| 6 | OUT | Precision 3.000V reference output - requires ≥0.1µF decoupling to GND for stability and transient immunity |
Key Features
| Feature | Design Value |
|---|---|
| Low-tempco SO package | 3ppm/°C max (–40°C to +125°C) - enables single-point calibration in field-deployed sensors |
| Laser-trimmed accuracy | ±0.04% initial tolerance - eliminates need for system-level trimming in medical-grade data loggers |
| Ultra-low quiescent current | 40µA independent of VIN - permits direct connection to microcontroller VDD rail without loading |
| Wide input range | 3.2V to 12.6V - supports operation from Li-ion (3.0–4.2V), 5V rails, and 12V industrial supplies |
| High load drive | 15mA source capability - drives multiple SAR ADC references or op-amp buffers without external gain stage |
Applications
| Portable Precision Instrumentation | Industrial Process Monitoring |
|---|---|
Use Scenario: Handheld multimeter with 6½-digit resolution operating on dual AA batteries. IC Role / Device Role / Timing Role: Primary voltage reference for dual-slope ADC and internal DAC calibration. Use Value: 3ppm/°C tempco and 40µA supply current extend battery life beyond 200 hours while maintaining 0.005% measurement accuracy across –10°C to +50°C ambient. | Use Scenario: 4–20mA loop-powered transmitter with HART interface in chemical plant control cabinet. IC Role / Device Role / Timing Role: Stable excitation source for RTD/thermocouple signal conditioning and ADC reference. Use Value: 200mV dropout enables reliable 3.000V reference generation from 3.3V LDO even at end-of-life supply voltage (3.2V), ensuring <1 LSB error over 15-year deployment. |
| High-Accuracy Data Acquisition | Medical Sensor Signal Chain |
Use Scenario: 16-channel, 24-bit isolated data acquisition module for power quality monitoring. IC Role / Device Role / Timing Role: Shared reference for simultaneous-sampling SAR ADCs and anti-aliasing filter calibration. Use Value: 24µVP-P (0.1–10Hz) noise and 0.06mV/mA load regulation prevent channel-to-channel crosstalk and maintain ENOB >21.5 bits. | Use Scenario: Portable ECG monitor with lead-off detection and analog front-end gain calibration. IC Role / Device Role / Timing Role: Reference for programmable-gain amplifier offset nulling and ADC conversion. Use Value: ±0.04% initial accuracy and 120ppm thermal hysteresis ensure repeatable baseline correction across clinical warm-up cycles without recalibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF3030AIDBZR | 3ppm/°C tempco, ±0.2% initial accuracy, 50µA IQ, SOT-23-3 package | Lower accuracy and no SO-8 footprint compatibility; limited to ≤10mA load | Select when board space is critical and ±0.2% system accuracy suffices |
| ADR3430ARZ | 3ppm/°C tempco, ±0.1% initial accuracy, 120µA IQ, SO-8 package | Higher quiescent current reduces battery life; same pinout but different IN/GND/OUT assignment | Select when long-term stability (50ppm/1000h) outweighs ultra-low power needs |
Compared with REF3030AIDBZR and ADR3430ARZ, MAX6133AASA30+ uniquely delivers ±0.04% initial accuracy in an SO-8 package with 40µA IQ - making it the only option that simultaneously meets stringent accuracy, low-power, and legacy SO-8 layout requirements for upgrade paths in existing industrial designs.
Availability
MAX6133AASA30+ is available at Aetrix Electronics and suitable for portable instrumentation, industrial process monitoring, and high-accuracy data acquisition requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for MAX6133AASA30+ 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 battery-operated and thermally variable environments - emphasizing initial accuracy, temperature stability, and minimal external component count.
FAQ
What is the maximum load current supported by the MAX6133AASA30+?
The MAX6133AASA30+ guarantees stable operation with up to 15mA of sourced output current across its full temperature range (–40°C to +125°C). This is confirmed in the Electrical Characteristics table under "Output Source-Current Capability" and validated in the DROPOUT VOLTAGE vs. OUTPUT CURRENT plots (toc05/toc06), where performance remains within spec up to 15mA with ≤400mV dropout at worst-case conditions.
Does the MAX6133AASA30+ require input or output capacitors for stability?
Yes - the MAX6133AASA30+ requires a minimum 0.1µF ceramic capacitor from IN to GND for optimal line-transient response, and a minimum 0.1µF capacitor from OUT to GND for stability. The device remains stable with output capacitance up to 100µF, as stated in the Applications Information section. These values are mandatory for meeting specified load/line regulation and noise performance.
What is the thermal hysteresis specification for the MAX6133AASA30+?
The MAX6133AASA30+ 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 Electrical Characteristics tables. It directly impacts repeatability in cyclic thermal environments like outdoor sensor enclosures.
Can the MAX6133AASA30+ be used with a 3.3V supply?
Yes - the MAX6133AASA30+ supports input voltages from 3.2V to 12.6V, making it fully compatible with standard 3.3V rails. At VIN = 3.3V, the 200mV max dropout ensures ≥3.1V output headroom, satisfying the 3.000V nominal output with margin. This is explicitly verified in the Input Voltage Range row of the MAX6133_30 electrical characteristics table.
How does the MAX6133AASA30+ compare to the MAX6133AASA25+ in terms of noise performance?
The MAX6133AASA30+ specifies 24µVP-P (0.1Hz–10Hz) output noise, versus 16µVP-P for the 2.5V version (MAX6133AASA25+). This increase reflects inherent scaling of bandgap noise with output voltage and is consistent across the family - higher-output variants show proportionally higher low-frequency noise, as documented in the respective Electrical Characteristics tables for each suffix.
MAX6133AASA30+ 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):
- 3V
- Voltage - Output (Max):
- -
- Current - Output:
- 15 mA
- Tolerance:
- ±0.04%
- 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-SOIC
MAX6133AASA30+ FAQ
1.How can I place an order for MAX6133AASA30+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6133AASA30+ 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 MAX6133AASA30+ reliable?
The price and inventory of MAX6133AASA30+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6133AASA30+ is usually 5 days.
3.What payment methods are accepted for MAX6133AASA30+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6133AASA30+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6133AASA30+?
MAX6133AASA30+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6133AASA30+ 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 MAX6133AASA30+?
For technical support, including MAX6133AASA30+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6133AASA30+ requirements.
6.How does Aetrix verify that MAX6133AASA30+ is sourced from the original manufacturer or authorized distributors?
All MAX6133AASA30+ 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 MAX6133AASA30+ meets industry standards.
7.What is the process for return or replacement of MAX6133AASA30+?
All MAX6133AASA30+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6133AASA30+, 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 MAX6133AASA30+ part is unused and in its original packaging.
Return procedure for MAX6133AASA30+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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