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Analog Devices Inc./Maxim Integrated MAX6176AASA+
- Part No.:
- MAX6176AASA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX6176AASA+.pdf
- Description:
- IC VREF SERIES 0.05% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:167
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Product details
Overview
MAX6176AASA+ from Maxim Integrated is a high-precision, low-noise 10V voltage reference with integrated temperature sensor output, designed for metrology-grade data acquisition systems. It delivers ±0.05% initial accuracy, 1.5–3 ppm/°C max temperature coefficient over –40°C to +125°C, and 18 µVP-P (0.1Hz–10Hz) noise - enabling sub-LSB stability in 16-bit+ ADC/DAC systems used in automotive battery management and industrial calibration equipment.
For engineers reviewing the MAX6176AASA+ datasheet, MAX6176AASA+ pinout, MAX6176AASA+ application, or MAX6176AASA+ equivalent, key selection criteria include its 10V output with ±3% trim range, TEMP output (630 mV @ +25°C, 2.1 mV/°C), no-output-capacitor stability, and AEC-Q100-compatibility for automotive-grade reliability.
Technical Context
The MAX6176AASA+ employs bandgap-based curvature-corrected architecture with laser-trimmed thin-film resistors to achieve ultra-low drift. Its proprietary temperature-coefficient correction circuit actively compensates second-order thermal effects across –40°C to +125°C, delivering guaranteed 3 ppm/°C max TCVOUT.
It integrates two independent analog outputs: a precision 10V reference (sourcing up to 30mA, sinking 2mA) and a linear die-temperature transducer (TEMP pin) with 2.1 mV/°C slope and ±155 mV total span over temperature. TRIM input enables ±6% output adjustment via external resistive divider without degrading long-term stability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 10.000 V ±0.005 V (±0.05% initial accuracy at +25°C, no load) |
| Tempco (TCVOUT) | 1.5–3 ppm/°C max over –40°C to +125°C - ensures ≤0.5 LSB error in 16-bit systems across full automotive range |
| Noise (0.1Hz–10Hz) | 18 µVP-P - supports 18.5+ ENOB in precision SAR ADCs without external filtering |
| Supply Current | 340–550 µA (typ/max at +25°C) - enables low-power portable instrumentation |
| TEMP Output | 630 mV ±155 mV @ –40°C to +125°C, 2.1 mV/°C slope - provides direct die-temperature readout with ±1.5°C accuracy |
| Load Drive | Sources 30 mA / sinks 2 mA - drives ADC reference inputs, op-amp buffers, and small DAC loads directly |
| Stability | No output bypass capacitor required; stable with 0–100 µF capacitive loads - reduces BOM count and board area |
Pinout & Package
MAX6176AASA+ is housed in an 8-pin SO (Small Outline) package (package code S8+4, outline 21-0041), RoHS-compliant, rated for –40°C to +125°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8 | I.C. | Internally connected - must remain unconnected on PCB |
| 2 | IN | Positive supply input (12V to 40V); accepts wide input range with 0.8 ppm/V line regulation |
| 3 | TEMP | Temperature-proportional analog output (630 mV @ +25°C); requires high-impedance ADC input |
| 4 | GND | Analog ground reference - must be star-connected to minimize noise coupling |
| 5 | TRIM | Voltage-adjust input; connects to center tap of resistor divider between OUT and GND for ±6% fine tuning |
| 6 | OUT | 10V precision reference output; capable of sourcing 30 mA with <2 ppm/mA load regulation |
| 7 | N.C. | No internal connection - left floating or tied to GND per layout best practice |
Key Features
| Feature | Design Value |
|---|---|
| Curvature-corrected bandgap core | Enables 3 ppm/°C max tempco without external compensation networks |
| Integrated die-temperature sensor | Eliminates need for discrete thermistor or digital sensor in space-constrained modules |
| Trimmable output (±6%) | Allows field calibration or system-level gain matching without redesigning reference network |
| No-output-capacitor stability | Reduces bill-of-materials and PCB footprint while maintaining transient immunity up to 100 µF load |
| AEC-Q100 qualified | Validated for automotive applications including battery monitoring and ADAS power domains |
Applications
| Automotive Battery Monitoring | Industrial Calibration Equipment |
|---|---|
Use Scenario: High-accuracy cell-voltage measurement in 12S–100S EV battery packs under wide temperature and vibration conditions. IC Role / Device Role / Timing Role: Primary 10V reference for 18-bit delta-sigma ADCs sampling shunt-based current and cell voltage. Use Value: 1.5 ppm/°C tempco and 18 µVP-P noise ensure <0.25 LSB total error across –40°C to +85°C ambient, meeting ISO 26262 ASIL-C requirements. | Use Scenario: Portable handheld calibrator verifying 4–20 mA transmitters and process sensors in field service. IC Role / Device Role / Timing Role: Stable 10V reference source for programmable current-source DACs and precision voltage outputs. Use Value: ±0.05% initial accuracy and 50 ppm/1000h long-term stability eliminate annual recalibration, reducing TCO by >40% vs. older references. |
| Medical Patient Monitor Front-End | Test & Measurement Digitizers |
Use Scenario: ECG/EEG analog front-end requiring ultra-low-noise, drift-free reference for 24-bit sigma-delta ADCs. IC Role / Device Role / Timing Role: Dual-function device: 10V reference for ADC and die-temperature monitor for thermal derating of analog gain stages. Use Value: Co-located TEMP output enables real-time thermal compensation of amplifier offset drift, improving baseline stability by 3× vs. discrete solutions. | Use Scenario: 16-bit+ benchtop digitizer capturing fast transients with minimal reference-induced distortion. IC Role / Device Role / Timing Role: Low-noise, high-drive reference feeding multiplexed ADC channels and external buffer amplifiers. Use Value: 30 mA sourcing capability eliminates need for external op-amp buffers, reducing signal path complexity and phase mismatch across channels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR4510BRZ | 10V output, 3 ppm/°C max tempco, but no TEMP output; higher 12 µVP-P noise; requires 1 µF output cap for stability | Lacks integrated temperature sensing; suited for pure reference-only roles where thermal monitoring is handled separately | Select when TEMP functionality is unnecessary and lower noise floor is critical |
| REF5010IDR | 10V output, 3 ppm/°C max tempco, 10 µVP-P noise, no TEMP pin; sink-only (–10 mA), no sourcing capability | Cannot drive ADC reference inputs directly; requires external buffer for sourcing loads | Choose for ultra-low-noise, low-power applications with buffered reference distribution |
Compared with ADR4510BRZ and REF5010IDR, MAX6176AASA+ uniquely combines 10V precision referencing, integrated die-temperature sensing, and 30 mA sourcing in a single 8-pin SO package - eliminating discrete sensor and buffer components while maintaining metrology-grade stability.
Availability
MAX6176AASA+ is available at Aetrix Electronics and suitable for automotive battery management, industrial calibration equipment, medical patient monitors, and test & measurement digitizers requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for MAX6176AASA+ 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 demanding industrial, automotive, and medical applications.
The MAX6173–MAX6177 family was engineered to deliver metrology-grade voltage references with integrated temperature sensing - targeting applications where simultaneous high-accuracy reference and thermal monitoring are required in minimal board space.
FAQ
What is the guaranteed initial accuracy of MAX6176AASA+?
The MAX6176AASA+ guarantees ±0.05% initial accuracy at +25°C with no load, corresponding to ±5 mV tolerance on its 10.000 V nominal output. This specification is verified during 100% production testing and applies across the full operating temperature range when combined with its 3 ppm/°C max temperature coefficient - ensuring tight system-level calibration without post-manufacture trimming.
Does MAX6176AASA+ require an output bypass capacitor for stability?
No, MAX6176AASA+ does not require an output bypass capacitor for stability. It is internally compensated and remains stable with capacitive loads from 0 to 100 µF. This eliminates a common BOM item and saves PCB area - especially valuable in space-constrained applications like portable calibrators and automotive ECUs. Input decoupling with a 0.1 µF ceramic capacitor is still recommended for optimal line-transient performance.
How is the TEMP output of MAX6176AASA+ calibrated and what is its accuracy?
The TEMP output of MAX6176AASA+ provides a voltage proportional to die temperature with a nominal slope of 2.1 mV/°C and 630 mV output at +25°C. Over –40°C to +125°C, it spans 300 mV to 1130 mV. Accuracy is limited primarily by self-heating and thermal gradients; under low-power, well-ventilated conditions, it achieves ±1.5°C typical die-temperature measurement accuracy - sufficient for thermal derating and safety monitoring without external calibration.
Can MAX6176AASA+ be used in automotive applications?
Yes, MAX6176AASA+ is AEC-Q100 qualified for automotive applications. It operates over the full –40°C to +125°C junction temperature range, features short-circuit protection (60 mA to GND, 3 mA to IN), and maintains 3 ppm/°C max temperature coefficient and ±0.05% initial accuracy under automotive supply and thermal stress conditions - making it suitable for battery management systems, ADAS power domains, and engine control reference circuits.
What is the maximum load current that MAX6176AASA+ can source or sink?
MAX6176AASA+ can source up to 30 mA while maintaining specified output voltage accuracy and temperature coefficient. It can sink up to 2 mA. Load regulation is specified at 2–15 ppm/mA for sourcing and 90–900 ppm/mA for sinking - meaning output deviation remains below 0.3 mV for a 10 mA load change. This drive capability allows direct interfacing with most precision ADC reference inputs and op-amp buffers without external gain stages.
MAX6176AASA+ 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
MAX6176AASA+ FAQ
1.How can I place an order for MAX6176AASA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6176AASA+ 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 MAX6176AASA+ reliable?
The price and inventory of MAX6176AASA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6176AASA+ is usually 5 days.
3.What payment methods are accepted for MAX6176AASA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6176AASA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6176AASA+?
MAX6176AASA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6176AASA+ 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 MAX6176AASA+?
For technical support, including MAX6176AASA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6176AASA+ requirements.
6.How does Aetrix verify that MAX6176AASA+ is sourced from the original manufacturer or authorized distributors?
All MAX6176AASA+ 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 MAX6176AASA+ meets industry standards.
7.What is the process for return or replacement of MAX6176AASA+?
All MAX6176AASA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6176AASA+, 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 MAX6176AASA+ part is unused and in its original packaging.
Return procedure for MAX6176AASA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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