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Analog Devices Inc./Maxim Integrated MAX6143AASA10+
- Part No.:
- MAX6143AASA10+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX6143AASA10+.pdf
- Description:
- IC VREF SERIES 0.05% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,272
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Product details
Overview
MAX6143AASA10+ from Maxim Integrated is a high-precision, low-noise voltage reference with integrated temperature-sensing output (TEMP), delivering a stable +10.000V reference at ±0.05% initial accuracy and 3ppm/°C max temperature coefficient over –40°C to +125°C. It sources up to 30mA, draws only 340µA quiescent current, and features active-low shutdown (0.01µA). It is used in 16-bit+ data acquisition systems requiring metrology-grade stability.
For engineers reviewing the MAX6143AASA10+ datasheet, MAX6143AASA10+ pinout, MAX6143AASA10+ application, or MAX6143AASA10+ equivalent, key selection criteria include its 10V output tolerance, TEMP output linearity (2.1mV/°C), TRIM-adjustable range (±3% to ±6%), no-output-capacitor stability, and automotive-grade operating range.
Technical Context
The MAX6143AASA10+ employs bandgap-based architecture with proprietary curvature-correction circuitry and laser-trimmed thin-film resistors to achieve 3ppm/°C tempco and ±0.05% initial accuracy. Its TEMP pin provides a linear 2.1mV/°C analog voltage proportional to die temperature, calibrated at 630mV at +25°C.
It integrates an active-low SHDN input (VIH = 2.0V, VIL = 0.8V) enabling ultra-low-power operation, and a TRIM terminal supporting resistive-divider adjustment of VOUT by ±3% (typ) to ±6% (max). Input voltage range is 12V to +40V, with dropout as low as 1.5V at 30mA load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | +10.000V (nominal), ±0.05% initial accuracy → ensures ≤±5mV absolute error at +25°C for precision ADC/DAC biasing |
| Tempco (–40°C to +125°C) | 3ppm/°C max → contributes ≤±2.55mV drift across full range, critical for 16-bit+ converter accuracy |
| Noise (0.1Hz–10Hz) | 18µVP-P → supports <18-bit ENOB in low-frequency precision measurement without external filtering |
| Supply Current | 340µA (typ), 700µA (max) → enables battery-powered portable instrumentation with multi-year runtime |
| TEMP Output | 630mV @ +25°C, 2.1mV/°C slope → provides direct die-temperature readout with ±1.5°C typical accuracy when calibrated |
| TRIM Range | ±3% to ±6% adjustment → allows fine-tuning to compensate for system-level gain errors or board-level tolerances |
| Shutdown Current | 0.01µA (typ) → reduces standby power to negligible levels in sleep-mode sensor nodes or portable meters |
Pinout & Package
MAX6143AASA10+ is housed in an 8-pin SO (SOIC-N) package (JEDEC MS-012, 150-mil width), with pins 1 and 8 internally connected and not to be externally wired.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (Pin 2) | Positive supply input | Accepts 12V to +40V; requires ≥2V headroom above VOUT for regulation; decoupling with 0.1µF ceramic recommended |
| TEMP (Pin 3) | Digital-temperature transducer output | Provides analog voltage proportional to die temperature (630mV @ +25°C, 2.1mV/°C); must be unloaded for accuracy |
| GND (Pin 4) | Reference ground | Common return for IN, OUT, SHDN, TRIM, and TEMP; requires low-impedance connection to minimize noise coupling |
| TRIM (Pin 5) | Voltage-reference trim node | Connects to center tap of resistive divider between OUT and GND; enables ±3% to ±6% output adjustment |
| OUT (Pin 6) | Precision reference output | Delivers regulated +10.000V; stable with 0–100µF capacitive loads; no bypass capacitor required for stability |
| SHDN (Pin 7) | Active-low shutdown control | Pull to GND to enter shutdown (ISHDN = 0.01µA); tie to IN for normal operation; VIH ≥2.0V, VIL ≤0.8V |
Key Features
| Feature | Design Value |
|---|---|
| Bandgap core with curvature correction | Enables 3ppm/°C tempco and ±0.05% initial accuracy without external calibration |
| Integrated temperature transducer (TEMP) | Eliminates need for separate thermal sensor in space-constrained systems like handheld DVMs |
| No-output-capacitor stability | Saves PCB area and BOM cost; avoids capacitor aging, leakage, and ESR-related drift in long-life instruments |
| Wide input range (12V to +40V) | Supports direct connection to unregulated industrial rails or automotive batteries without pre-regulation |
| 30mA sourcing capability | Drives multiple ADC references, op-amp bias networks, or DAC buffers without external pass devices |
Applications
| High-Resolution Data Acquisition | Digital Voltmeters (DVMs) |
|---|---|
|
Use Scenario: 18-bit sigma-delta ADC front-end in portable calibration equipment requiring traceable voltage standards. IC Role / Device Role / Timing Role: Primary reference source for ADC conversion, with TEMP used for on-chip thermal compensation of gain/offset drift. Use Value: 3ppm/°C tempco and 18µVP-P noise ensure <0.5 LSB error over –20°C to +70°C ambient, meeting ANSI C12.20 Class 0.1 accuracy. |
Use Scenario: Benchtop 6½-digit DVM where reference stability defines overall measurement uncertainty. IC Role / Device Role / Timing Role: Fixed +10.000V reference for autoranging input stages and internal self-calibration routines. Use Value: ±0.05% initial accuracy and <120ppm thermal hysteresis enable factory calibration validity for >2 years without recalibration. |
| Industrial Process Monitoring | Battery-Powered Sensor Nodes |
|
Use Scenario: Loop-powered 4–20mA transmitter with local analog sensing and digital reporting via RS-485. IC Role / Device Role / Timing Role: Reference for analog signal conditioning (RTD/I/V conversion) and TEMP for cold-junction compensation. Use Value: 30mA sourcing drives excitation current for 4-wire RTDs; 340µA quiescent current minimizes burden on 4–20mA loop. |
Use Scenario: Wireless environmental sensor node logging temperature, humidity, and pressure with 10-year battery life. IC Role / Device Role / Timing Role: Precision reference for ADC and integrated TEMP output used for on-board thermal derating. Use Value: 0.01µA shutdown current extends CR2032 battery life beyond 10 years in deep-sleep mode; no external cap reduces component count. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF5010AIDR | 10V output, 3ppm/°C tempco, but ±0.02% initial accuracy and higher 950µA supply current; no integrated TEMP output | Lacks die-temperature sensing; suited for pure reference applications where highest initial accuracy outweighs power/temp-sensing needs | Select REF5010AIDR when absolute initial accuracy is primary and thermal monitoring is handled separately |
| ADR4510BRZ | 10V output, 3ppm/°C tempco, ±0.02% initial accuracy, 850µA supply current; includes noise-reduction pin but no TEMP output | Offers lower 1.8µVP-P noise (0.1–10Hz) but requires external capacitor and lacks integrated temperature transducer | Choose ADR4510BRZ for ultra-low-noise 10V reference in high-speed DAQ where TEMP functionality is unnecessary |
Compared with REF5010AIDR and ADR4510BRZ, MAX6143AASA10+ uniquely combines 10V precision referencing with integrated die-temperature sensing and ultra-low shutdown current-making it optimal for compact, battery-aware, thermally compensated instrumentation where BOM count and power budget are constrained.
Availability
MAX6143AASA10+ is available at Aetrix Electronics and suitable for high-resolution data acquisition, digital voltmeters, industrial process transmitters, and battery-powered sensor nodes requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for MAX6143AASA10+ 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, interface, and RF applications.
The MAX6143AASA10+ belongs to Maxim's precision voltage reference family, engineered for metrology-grade accuracy, low noise, and integrated diagnostics-targeting test & measurement, industrial automation, and portable instrumentation.
FAQ
What is the guaranteed initial accuracy of the MAX6143AASA10+?
The MAX6143AASA10+ guarantees ±0.05% initial accuracy at +25°C, meaning its output voltage is tightly specified between 9.995V and 10.005V under no-load conditions. This specification is verified during 100% production testing and applies across the full –40°C to +125°C operating range per design guarantee. The MAX6143AASA10+ achieves this using laser-trimmed thin-film resistors and curvature-corrected bandgap architecture.
Does the MAX6143AASA10+ require an output bypass capacitor for stability?
No, the MAX6143AASA10+ does not require an output bypass capacitor for stability-it is inherently stable with capacitive loads from 0 to 100µF. This eliminates board space, cost, and reliability risks associated with external capacitors. However, adding up to 100µF at the OUT pin improves transient response during load or line steps, especially in high-current or noisy environments.
How is the TEMP output of the MAX6143AASA10+ calibrated and used?
The MAX6143AASA10+ TEMP pin outputs 630mV at +25°C with a nominal slope of 2.1mV/°C, providing a linear voltage proportional to die temperature. For accurate ambient temperature measurement, the device must be thermally coupled to the target environment and operated with minimal self-heating (i.e., low load current). Calibration typically involves measuring TEMP at two known temperatures to determine offset and gain.
What is the maximum load current the MAX6143AASA10+ can source or sink?
The MAX6143AASA10+ can source up to 30mA while maintaining output regulation and specified accuracy. It can sink up to 2mA. Load regulation is characterized at ±90ppm/mA for sinking and ±2ppm/mA for sourcing (0–10mA range), ensuring minimal voltage shift even under dynamic load conditions typical in multi-channel data acquisition systems.
Can the output voltage of the MAX6143AASA10+ be adjusted, and how?
Yes, the MAX6143AASA10+ output voltage can be trimmed using the TRIM pin. Connect a resistive divider (e.g., 50kΩ potentiometer) between OUT and GND, with its wiper tied to TRIM. This allows adjustment of VOUT by ±3% (typical) to ±6% (maximum) around the nominal 10.000V. The trim range is defined by the internal feedback network and is independent of supply voltage within the specified input range.
MAX6143AASA10+ 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):
- 10V
- Voltage - Output (Max):
- -
- Current - Output:
- 30 mA
- Tolerance:
- ±0.05%
- Temperature Coefficient:
- 3ppm/°C
- Noise - 0.1Hz to 10Hz:
- 18µVp-p
- Noise - 10Hz to 10kHz:
- 29µVrms
- Voltage - Input:
- 12V ~ 40V
- Current - Supply:
- 700µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX6143AASA10+ FAQ
1.How can I place an order for MAX6143AASA10+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6143AASA10+ 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 MAX6143AASA10+ reliable?
The price and inventory of MAX6143AASA10+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6143AASA10+ is usually 5 days.
3.What payment methods are accepted for MAX6143AASA10+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6143AASA10+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6143AASA10+?
MAX6143AASA10+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6143AASA10+ 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 MAX6143AASA10+?
For technical support, including MAX6143AASA10+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6143AASA10+ requirements.
6.How does Aetrix verify that MAX6143AASA10+ is sourced from the original manufacturer or authorized distributors?
All MAX6143AASA10+ 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 MAX6143AASA10+ meets industry standards.
7.What is the process for return or replacement of MAX6143AASA10+?
All MAX6143AASA10+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6143AASA10+, 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 MAX6143AASA10+ part is unused and in its original packaging.
Return procedure for MAX6143AASA10+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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