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Analog Devices Inc./Maxim Integrated MAX6143AASA10+T
- Part No.:
- MAX6143AASA10+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX6143AASA10+T.pdf
- Description:
- IC VREF SERIES 0.05% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,194
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Product details
Overview
MAX6143AASA10+T from Maxim Integrated is a high-precision, low-noise voltage reference with integrated temperature sensor output, delivering a stable +10.000V reference (±0.05% initial accuracy), 3ppm/°C max temperature coefficient over –40°C to +125°C, and 18µVP-P (0.1Hz–10Hz) noise. It sources up to 30mA, operates from (VOUT + 2V) to +40V input, and supports trimming via resistive divider on TRIM pin.
For engineers reviewing the MAX6143AASA10+T datasheet, MAX6143AASA10+T pinout, MAX6143AASA10+T application, or MAX6143AASA10+T equivalent, key selection criteria include its 10V output stability under wide supply range, TEMP pin's 2.1mV/°C linear transducer response, shutdown current of 0.01µA, no-output-capacitor stability, and automotive-grade operation.
Technical Context
The MAX6143AASA10+T uses bandgap-based architecture with proprietary curvature-correction circuitry and laser-trimmed thin-film resistors to achieve 3ppm/°C tempco and ±0.05% initial accuracy at +10V output. Its TEMP pin provides a die-temperature-proportional voltage (630mV at +25°C, 2.1mV/°C), calibrated for direct use in thermal monitoring without external compensation.
It integrates active-low SHDN control (VIH = 2.0V, VIL = 0.8V), TRIM input for ±6% output adjustment via external resistor network, and robust short-circuit protection (60mA to GND, 3mA to IN). The device is internally compensated and stable with capacitive loads up to 100µF-no output bypass capacitor required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | +10.000V (±0.05% initial accuracy at +25°C; min/max = 9.995V/10.005V) |
| Temperature Coefficient | 3ppm/°C max (–40°C to +125°C); enables ≤1 LSB error in 16-bit ADCs over full automotive range |
| Noise (0.1Hz–10Hz) | 18µVP-P typical; critical for high-resolution DAC/ADC reference integrity |
| Supply Current | 340µA typical at +25°C; reduces self-heating and improves long-term drift stability |
| Shutdown Current | 0.01µA typical; extends battery life in portable or always-on sensing systems |
| TEMP Output | 630mV at +25°C with 2.1mV/°C slope; provides direct Kelvin-referenced die temperature measurement |
| Load Drive | Sources 30mA / sinks 2mA; supports direct driving of ADC reference inputs and small analog circuits |
Pinout & Package
MAX6143AASA10+T is housed in an 8-pin SOIC (SO) package (JEDEC MS-012, 150-mil width), with pins 1 and 8 internally connected and not externally accessible.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (Pin 2) | Positive power-supply input | Accepts 12V to +40V; dropout headroom as low as 2V above VOUT |
| TEMP (Pin 3) | Digital-temperature transducer output | Provides 2.1mV/°C analog voltage proportional to die temperature; unbuffered, requires high-Z readout |
| GND (Pin 4) | Analog ground reference | Common return for IN, OUT, SHDN, TRIM, and TEMP; must be low-impedance for noise immunity |
| TRIM (Pin 5) | Output voltage adjustment node | Accepts resistive divider between OUT and GND; enables ±6% fine-tuning of 10V output |
| OUT (Pin 6) | Precision 10V reference output | Low-impedance buffered source; stable with 0–100µF capacitive load; no external capacitor needed |
| SHDN (Pin 7) | Active-low shutdown control | Pull to GND to reduce IIN to 0.01µA; tie to IN for normal operation |
Key Features
| Feature | Design Value |
|---|---|
| Bandgap-based 10V reference | Delivers factory-trimmed +10.000V with ±0.05% initial tolerance-eliminates system-level calibration for mid-accuracy applications |
| Integrated temperature sensor | TEMP pin outputs 630mV at +25°C with 2.1mV/°C slope-enables single-chip thermal monitoring without external ICs or lookup tables |
| No-output-capacitor stability | Internally compensated design remains stable with 0–100µF output capacitance-reduces BOM count and PCB area in space-constrained designs |
| Wide input supply range | Operates from (VOUT + 2V) = 12V up to +40V-supports direct connection to unregulated 12V/24V automotive rails without pre-regulation |
| Low-power shutdown mode | 0.01µA shutdown current enables microamp-level system sleep states-critical for battery-powered data loggers and remote sensors |
Applications
| Industrial Data Acquisition | Automotive Battery Monitoring |
|---|---|
Use Scenario: High-accuracy 16-bit SAR ADC in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Primary voltage reference for ADC conversion and precision DAC feedback loop. Use Value: 3ppm/°C tempco and 18µVP-P noise ensure <1 LSB error across –40°C to +85°C industrial operating range without recalibration. |
Use Scenario: Real-time cell-voltage and pack-temperature monitoring in 12V/48V EV auxiliary battery systems. IC Role / Device Role / Timing Role: Simultaneous 10V reference for ADC and die-temperature sensing via TEMP pin. Use Value: Single-device dual function eliminates separate temp sensor, reduces component count, and ensures correlated thermal reference for voltage drift compensation. |
| Portable Test Equipment | Medical Sensor Signal Chain |
Use Scenario: Handheld digital multimeter (DMM) requiring stable 10V reference and internal temperature compensation. IC Role / Device Role / Timing Role: Precision reference source and on-die thermal reference for auto-zero and gain calibration routines. Use Value: 0.01µA shutdown current extends battery life >1 year in standby; TRIM pin allows field-adjustable calibration without hardware change. |
Use Scenario: Low-noise EEG/ECG front-end with 24-bit delta-sigma ADC demanding ultra-stable reference and thermal awareness. IC Role / Device Role / Timing Role: Low-noise 10V reference and direct die-temperature monitor for real-time offset drift correction. Use Value: 18µVP-P (0.1Hz–10Hz) noise meets ENOB >21-bit requirement; TEMP output enables algorithmic thermal drift modeling without external sensors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF5010IDR | 10V output, 3ppm/°C max tempco, but higher 4.8µVP-P noise (0.1Hz–10Hz) and requires 1µF output capacitor for stability | Lacks integrated temperature sensor; needs external thermal monitoring solution | Select when lower cost and TI ecosystem compatibility outweigh need for integrated TEMP output and capacitor-free operation |
| ADR4510BRZ | 10V output, 3ppm/°C max tempco, 12µVP-P noise, but only 10mA sourcing capability and no TEMP output | Does not support simultaneous reference + temperature sensing; limited drive strength affects ADC reference buffer design | Prefer when ultra-low noise is secondary to long-term stability (50ppm/1000h) and ADR series qualification is mandated |
Compared with REF5010IDR and ADR4510BRZ, MAX6143AASA10+T uniquely combines 10V precision referencing, integrated die-temperature transduction, capacitor-free stability, and 30mA sourcing-all in a single 8-pin SOIC-making it optimal for space- and function-constrained embedded systems where thermal-aware reference performance is critical.
Availability
MAX6143AASA10+T is available at Aetrix Electronics and suitable for industrial data acquisition, automotive battery monitoring, and portable test equipment requiring stable component supply, extended temperature operation, and dual-function (reference + temperature) integration.
Supply support for MAX6143AASA10+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 high-performance analog and mixed-signal ICs for precision, power, and interface applications.
The MAX6143 family was engineered for high-accuracy data conversion systems needing stable voltage references with built-in thermal intelligence-targeting automotive, industrial, and medical instrumentation where reference drift and thermal coupling degrade measurement fidelity.
FAQ
What is the guaranteed initial accuracy of the MAX6143AASA10+T?
The MAX6143AASA10+T guarantees ±0.05% initial accuracy at +25°C, meaning its output voltage falls within 9.995V to 10.005V under no-load conditions at room temperature. This specification is verified during 100% production testing and applies specifically to the 'A' grade variant denoted in the part number suffix.
Does the MAX6143AASA10+T require an output bypass capacitor?
No, the MAX6143AASA10+T does not require an output bypass capacitor for stability. Its internal compensation ensures stability with capacitive loads from 0 to 100µF. This eliminates a common BOM item and simplifies layout-especially valuable in compact, high-density PCBs where board space is constrained.
How is the TEMP output of the MAX6143AASA10+T calibrated and used?
The TEMP pin of the MAX6143AASA10+T outputs 630mV at +25°C with a nominal slope of 2.1mV/°C, directly proportional to die temperature. It is unbuffered and intended for high-impedance measurement (e.g., ADC input with ≥1MΩ input resistance). No external calibration is needed-the relationship is factory-characterized and specified across –40°C to +125°C.
What is the maximum load current the MAX6143AASA10+T can source or sink?
The MAX6143AASA10+T can source up to 30mA and sink up to 2mA while maintaining output accuracy within specifications. Sourcing capability supports direct driving of reference inputs for multiple ADCs or op-amp bias networks; sinking is limited due to internal architecture but sufficient for pull-down or comparator reference applications.
Can the output voltage of the MAX6143AASA10+T be adjusted, and if so, how?
Yes, the MAX6143AASA10+T output voltage can be trimmed ±6% using the TRIM pin. Connect a resistive divider (e.g., 50kΩ potentiometer) between OUT and GND, with the wiper tied to TRIM. The output changes linearly with TRIM voltage-no external op-amps or DACs are required, enabling field calibration or fine-tuning without hardware modification.
MAX6143AASA10+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):
- 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+T FAQ
1.How can I place an order for MAX6143AASA10+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6143AASA10+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 MAX6143AASA10+T reliable?
The price and inventory of MAX6143AASA10+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6143AASA10+T is usually 5 days.
3.What payment methods are accepted for MAX6143AASA10+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6143AASA10+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6143AASA10+T?
MAX6143AASA10+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6143AASA10+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 MAX6143AASA10+T?
For technical support, including MAX6143AASA10+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6143AASA10+T requirements.
6.How does Aetrix verify that MAX6143AASA10+T is sourced from the original manufacturer or authorized distributors?
All MAX6143AASA10+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 MAX6143AASA10+T meets industry standards.
7.What is the process for return or replacement of MAX6143AASA10+T?
All MAX6143AASA10+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6143AASA10+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 MAX6143AASA10+T part is unused and in its original packaging.
Return procedure for MAX6143AASA10+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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