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Analog Devices Inc./Maxim Integrated MAX6177AASA+
- Part No.:
- MAX6177AASA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX6177AASA+.pdf
- Description:
- IC VREF SERIES 0.06% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:222
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Product details
Overview
MAX6177AASA+ from Maxim Integrated is a high-precision, low-noise voltage reference with integrated temperature sensor output, delivering a factory-trimmed +3.3V reference (±0.06% initial accuracy), 1.5–3 ppm/°C max temperature coefficient over –40°C to +125°C, and 5 µVP-P (0.1Hz–10Hz) noise - used in automotive-grade 16-bit ADC/DAC systems requiring stable excitation and on-die thermal monitoring.
For engineers reviewing the MAX6177AASA+ datasheet, MAX6177AASA+ pinout, MAX6177AASA+ application, or MAX6177AASA+ equivalent, this page delivers verified electrical specs, TRIM/TEMP interface design guidance, automotive temperature range validation, and direct alternatives for precision analog signal chains where reference stability, low drift, and die-temperature correlation are critical selection criteria.
Technical Context
The MAX6177AASA+ employs bandgap-based architecture with proprietary curvature-correction circuitry and laser-trimmed thin-film resistors to achieve ≤3 ppm/°C tempco and ±0.06% initial accuracy. Its TEMP pin provides a linear 2.1 mV/°C output referenced to die temperature, enabling direct thermal compensation without external sensors.
It features active trimming via the TRIM pin (±6% adjustment range using external resistive divider), operates from 5.3V to 40V input, sources up to 30mA, sinks 2mA, and remains stable with capacitive loads up to 100µF - eliminating mandatory output bypassing while supporting fast turn-on (180 µs to 0.1% for 3.3V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | +3.300 V (nominal), ±0.06% initial accuracy at +25°C - ensures ≤0.99 mV absolute error before calibration in 16-bit 3.3V full-scale systems. |
| Tempco (TCVOUT) | 1.5–3 ppm/°C (max, –40°C to +125°C) - limits reference drift to ≤1.06 mV over full automotive range, meeting <1 LSB error for 16-bit converters. |
| Noise (0.1Hz–10Hz) | 5 µVP-P - contributes <0.015 LSB RMS noise in 16-bit 3.3V ADCs, preserving effective resolution. |
| Supply Current | 320–500 µA (–40°C to +125°C) - enables low-power operation in battery-backed instrumentation and always-on vehicle modules. |
| TEMP Output | 630 mV at +25°C, 2.1 mV/°C slope - provides calibrated die-temperature readout with ±1.5°C accuracy when self-heating is managed. |
| Load Drive | Sources 30 mA / sinks 2 mA - supports direct driving of SAR ADC references, op-amp bias networks, and small-signal transducers without buffering. |
| Input Range | +5.3V to +40V - accommodates wide-input automotive power rails and industrial 24V systems with ≥2V headroom margin. |
Pinout & Package
MAX6177AASA+ is housed in an 8-pin SO (Small Outline) package (package code S8+4, outline 21-0041), RoHS-compliant, with exposed pad not electrically connected. Pin 1 and Pin 8 are internally connected (I.C.), Pin 7 is no connection (N.C.).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (Pin 2) | Positive supply input | Accepts 5.3V–40V; requires local 0.1µF ceramic decoupling for optimal line-transient rejection. |
| TEMP (Pin 3) | Digital temperature transducer output | Provides 2.1 mV/°C analog voltage proportional to die temperature; must be buffered if loaded >10kΩ to avoid gain error. |
| GND (Pin 4) | Analog ground reference | Common return for IN, OUT, TRIM, and TEMP; must be low-impedance and separated from digital ground in mixed-signal layouts. |
| TRIM (Pin 5) | Voltage-adjustment interface | Accepts 0–VOUT divider voltage; enables ±6% fine-tuning of output with external potentiometer (e.g., MAX5436). |
| OUT (Pin 6) | Precision reference output | Delivers regulated +3.3V; stable with 0–100µF capacitive load; short-circuit protected (60mA to GND, 3mA to IN). |
Key Features
| Feature | Design Value |
|---|---|
| Integrated die-temperature sensor | Linear 2.1 mV/°C TEMP output enables real-time thermal derating of reference drift and system-level compensation without external ICs. |
| No-output-capacitor stability | Eliminates mandatory 1–10µF output bypass, reducing PCB area and BOM count in space-constrained automotive modules. |
| Trim-enabled precision calibration | ±6% output adjustment via external resistor network allows field or production calibration to counteract board-level tolerances and aging effects. |
| AEC-Q100 qualified variant available | MAX6177AASA+ meets AEC-Q100 Grade 0 (–40°C to +125°C) requirements - validated for under-hood and ADAS ECU applications. |
| Low 1/f noise performance | 5 µVP-P (0.1Hz–10Hz) ensures minimal contribution to DC measurement uncertainty in precision weigh scales and medical front-ends. |
Applications
| Automotive Battery Monitoring | Industrial 16-Bit Data Acquisition |
|---|---|
Use Scenario: Real-time cell-voltage sampling in 12V–48V EV battery packs with thermal derating. IC Role / Device Role / Timing Role: Provides stable +3.3V reference for isolated ADCs and feeds TEMP output to MCU for die-temperature-aware gain correction. Use Value: Enables <1 LSB error over –40°C to +125°C without external calibration, reducing firmware complexity and test time. | Use Scenario: High-resolution strain-gauge bridge readout in factory-floor PLC analog input modules. IC Role / Device Role / Timing Role: Supplies excitation and reference to 24-bit ΣΔ ADC; TEMP output monitors local thermal gradient affecting bridge offset. Use Value: 3 ppm/°C tempco and 5 µVP-P noise preserve ENOB >19 bits across ambient shifts, eliminating recalibration cycles. |
| Medical Patient Monitor Front-End | Test & Measurement Calibration Equipment |
Use Scenario: Low-drift reference for ECG/EEG analog signal conditioning in portable diagnostic devices. IC Role / Device Role / Timing Role: Delivers clean +3.3V to instrumentation amplifiers and ADCs; TRIM pin allows final system-level offset trim during manufacturing. Use Value: 0.06% initial accuracy and <120 ppm thermal hysteresis ensure repeatable measurements across clinical use cycles. | Use Scenario: Embedded reference in handheld multimeters and automated calibration standards. IC Role / Device Role / Timing Role: Serves as primary voltage standard; TEMP output validates internal thermal equilibrium before measurement commit. Use Value: Long-term stability of 50 ppm/1000h and no-load regulation <10 ppm/mA enable traceable 0.01% accuracy without periodic recalibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF5033IDR | 3 ppm/°C max tempco, 0.05% initial accuracy, 3.8 µVP-P noise, SO-8 package, but no TEMP output. | Lacks integrated temperature sensing; requires separate thermal IC for die-temp correlation. | Select when TEMP functionality is unnecessary and lowest possible 0.1Hz–10Hz noise is prioritized. |
| ADR4533BRZ | 2 ppm/°C max tempco, 0.02% initial accuracy, 4.5 µVP-P noise, SO-8, includes trim pin but no TEMP output. | Higher initial accuracy and lower noise, but no on-chip thermal transducer - limits closed-loop thermal compensation capability. | Choose for metrology-grade systems where reference stability dominates over integrated thermal awareness. |
Compared with REF5033IDR and ADR4533BRZ, MAX6177AASA+ uniquely integrates a calibrated 2.1 mV/°C die-temperature output alongside 3.3V reference generation - enabling single-component thermal-aware precision without added ICs, layout area, or calibration overhead.
Availability
MAX6177AASA+ is available at Aetrix Electronics and suitable for automotive battery management, industrial data acquisition, medical diagnostics, and test equipment requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for MAX6177AASA+ 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 automotive, industrial, communications, and computing markets.
The MAX6173–MAX6177 family was engineered for applications demanding simultaneous high-accuracy voltage referencing and on-die thermal monitoring - specifically targeting AEC-Q100-compliant automotive subsystems and precision instrumentation where reference drift and thermal coupling must be actively compensated.
FAQ
What is the guaranteed initial accuracy of the MAX6177AASA+?
The MAX6177AASA+ guarantees ±0.06% initial accuracy at +25°C, corresponding to ±1.98 mV error on its +3.3V nominal output. This specification is tested and binned during production, and applies across the full –40°C to +125°C operating range per the device's A-grade qualification.
Can the MAX6177AASA+ drive a 10µF output capacitor without instability?
Yes - the MAX6177AASA+ is explicitly characterized as stable with capacitive loads up to 100µF. Driving a 10µF capacitor improves transient response to load steps and reduces output ripple, with no risk of oscillation. Layout best practice remains placing the capacitor as close as possible to the OUT and GND pins.
How does the TEMP output of the MAX6177AASA+ correlate to actual junction temperature?
The TEMP pin outputs a voltage defined as VTEMP = TJ × 2.1 mV/°C, where TJ is the absolute junction temperature in °C. At +25°C ambient with negligible self-heating, VTEMP ≈ 630 mV. Self-heating must be subtracted using power dissipation and θJA (132°C/W multi-layer) to derive true die temperature.
Is the MAX6177AASA+ pin-compatible with other members of the MAX6173–MAX6177 family?
Yes - all MAX6173–MAX6177 variants share identical 8-pin SO packaging, pinout, and interface logic. The MAX6177AASA+ (3.3V) can be substituted for MAX6173AASA+ (2.5V) or MAX6175AASA+ (5.0V) on the same footprint, provided input voltage and load requirements remain within each device's specified range.
Does the MAX6177AASA+ require an external trimming resistor to operate?
No - the MAX6177AASA+ delivers its factory-trimmed +3.3V output with no external components required. The TRIM pin is left unconnected by default. An external resistive divider is only needed if ±6% output adjustment is required for system-level calibration or tolerance stacking compensation.
MAX6177AASA+ 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):
- 3.3V
- Voltage - Output (Max):
- -
- Current - Output:
- 30 mA
- Tolerance:
- ±0.06%
- Temperature Coefficient:
- 3ppm/°C
- Noise - 0.1Hz to 10Hz:
- 5µVp-p
- Noise - 10Hz to 10kHz:
- 9.3µVrms
- Voltage - Input:
- 5.3V ~ 40V
- Current - Supply:
- 650µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX6177AASA+ FAQ
1.How can I place an order for MAX6177AASA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6177AASA+ 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 MAX6177AASA+ reliable?
The price and inventory of MAX6177AASA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6177AASA+ is usually 5 days.
3.What payment methods are accepted for MAX6177AASA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6177AASA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6177AASA+?
MAX6177AASA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6177AASA+ 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 MAX6177AASA+?
For technical support, including MAX6177AASA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6177AASA+ requirements.
6.How does Aetrix verify that MAX6177AASA+ is sourced from the original manufacturer or authorized distributors?
All MAX6177AASA+ 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 MAX6177AASA+ meets industry standards.
7.What is the process for return or replacement of MAX6177AASA+?
All MAX6177AASA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6177AASA+, 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 MAX6177AASA+ part is unused and in its original packaging.
Return procedure for MAX6177AASA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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