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Analog Devices Inc./Maxim Integrated MAX6175BASA
- Part No.:
- MAX6175BASA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX6175BASA.pdf
- Description:
- VOLTAGE REFERENCE
- Quantity:
- Payment:
- Shipping:
Inventory:412
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Product details
Overview
MAX6175BASA from Maxim Integrated is a high-precision, automotive-grade voltage reference IC delivering a stable +5.0V output with 10ppm/°C max temperature coefficient, ±0.10% initial accuracy, and integrated linear temperature transducer (TEMP output). It operates from +7V to +40V input, sources up to 30mA, sinks 2mA, and targets high-resolution ADC/DAC biasing in automotive engine control units and industrial data acquisition systems.
For engineers reviewing the MAX6175BASA datasheet, MAX6175BASA pinout, MAX6175BASA application, or MAX6175BASA equivalent, this page delivers verified specifications, package mapping, thermal sensor interface details, trimming methodology, and validated alternative options for precision analog subsystem design.
Technical Context
The MAX6175BASA uses bandgap-based architecture with proprietary curvature-correction circuitry and laser-trimmed thin-film resistors to achieve low drift and high DC accuracy. Its TEMP pin provides a linear 2.1mV/°C output referenced to die temperature, enabling on-chip thermal monitoring without external sensors.
It features internal short-circuit protection (60mA sink-to-GND, 3mA sink-to-IN), eliminates need for output bypass capacitors, and remains stable with capacitive loads up to 100µF - simplifying layout in space-constrained automotive modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | +5.000V nominal; guaranteed 4.995V–5.005V at +25°C (±0.10% initial accuracy) |
| Tempco (–40°C to +125°C) | ≤10ppm/°C; ensures ≤±0.5mV output drift over full automotive temperature range |
| Noise (0.1Hz–10Hz) | 9µVP-P; supports 16-bit+ ADCs without added filtering |
| Supply Current | 320µA typical, ≤700µA max; enables low-power battery-backed instrumentation |
| Input Voltage Range | +7.0V to +40V; accommodates wide automotive supply rails including load-dump conditions |
| TEMP Output | 630mV @ +25°C, 2.1mV/°C slope; provides calibrated die temperature sensing with ±1.5°C accuracy |
| Load Drive | Sources 30mA / sinks 2mA; sufficient for driving ADC reference inputs and small analog buffers |
Pinout & Package
MAX6175BASA is housed in an 8-pin SO (Small Outline) package, RoHS-compliant and qualified for automotive operation (–40°C to +125°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8 | I.C. | Internally connected; must remain unconnected externally - no routing or vias allowed |
| 2 | IN | Positive power input; accepts +7V to +40V; requires local 0.1µF ceramic decoupling |
| 3 | TEMP | Digital-temperature-proportional analog output; 630mV @ +25°C, 2.1mV/°C slope |
| 4 | GND | Analog ground reference; must be low-impedance, star-connected to system GND |
| 5 | TRIM | Voltage-adjust input; connects to center tap of resistive divider between OUT and GND for ±6% fine tuning |
| 6 | OUT | +5.0V precision reference output; stable with 0–100µF capacitive loads; no bypass cap required |
| 7 | N.C. | No internal connection; left floating - no PCB trace or component attachment |
Key Features
| Feature | Design Value |
|---|---|
| Automotive Temperature Range | Qualified for –40°C to +125°C operation per AEC-Q100; suitable for under-hood ECU and transmission control |
| Integrated Temperature Sensor | Linear TEMP output (2.1mV/°C) enables real-time die-temperature monitoring without external components |
| Trimmable Reference Output | TRIM pin allows ±6% adjustment via external resistor network - supports calibration after board assembly |
| Capacitor-Free Stability | No output bypass capacitor required; reduces BOM count and PCB area in compact sensor modules |
| Short-Circuit Protection | Self-limiting output current (60mA to GND, 3mA to IN) prevents latch-up during fault conditions |
Applications
| Automotive Engine Control Unit (ECU) | Industrial Data Acquisition System |
|---|---|
Use Scenario: High-accuracy analog front-end for cylinder pressure and knock sensing in gasoline/diesel ECUs. IC Role / Device Role / Timing Role: Provides stable +5.0V reference for 16-bit SAR ADCs sampling combustion signals; TEMP pin monitors MCU junction temperature for thermal derating. Use Value: 10ppm/°C tempco ensures <±0.5 LSB error over –40°C to +125°C, meeting ASAM MCD-2 MC calibration requirements. |
Use Scenario: Modular PLC analog I/O module measuring 4–20mA loop signals and thermocouple inputs. IC Role / Device Role / Timing Role: Supplies precision reference to dual 24-bit ΣΔ ADCs; TRIM pin enables factory calibration against metrology-grade standards. Use Value: ±0.10% initial accuracy and 9µVP-P noise enable 22-bit effective resolution without post-processing. |
| Medical Patient Monitor Analog Subsystem | Battery-Powered Portable DMM |
Use Scenario: ECG/EEG signal conditioning path requiring ultra-low-noise, drift-stable biasing. IC Role / Device Role / Timing Role: References instrumentation amplifiers and anti-alias filters; TEMP output validates thermal stability during clinical use. Use Value: 320µA quiescent current extends battery life while maintaining <1µV RMS noise floor across 0.1–10Hz bandwidth. |
Use Scenario: Handheld digital multimeter with autoranging and true-RMS conversion. IC Role / Device Role / Timing Role: Primary reference for 5½-digit ADC; TRIM pin compensates for solder-joint resistance drift during reflow. Use Value: 100µF capacitive load tolerance allows use of low-ESR polymer caps for improved transient immunity during range switching. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF5050AIDR | 5ppm/°C max tempco, 0.05% initial accuracy, 3.8µVP-P noise; requires 1µF output cap; SO-8 package | Better DC specs but higher cost and stricter layout rules; suited for lab-grade instrumentation, not automotive | Select REF5050AIDR when sub-5ppm/°C drift and <0.05% accuracy are mandatory, and board space permits output capacitor |
| ADR4550BRZ | 3ppm/°C max tempco, 0.02% initial accuracy, 5.5µVP-P noise; SO-8, no TEMP output; higher quiescent current (950µA) | Lacks integrated temperature sensor; optimized for metrology, not embedded thermal-aware systems | Choose ADR4550BRZ for highest-accuracy benchtop equipment where die-temperature feedback is unnecessary |
Compared with REF5050AIDR and ADR4550BRZ, MAX6175BASA trades minor DC precision for integrated thermal sensing, automotive qualification, lower supply current, and capacitor-free operation - making it optimal for cost-sensitive, space-constrained, thermally aware embedded systems.
Availability
MAX6175BASA is available at Aetrix Electronics and suitable for automotive engine control units, industrial data acquisition systems, medical patient monitors, and portable digital multimeters requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6175BASA 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 and mixed-signal ICs for demanding industrial, automotive, and medical applications, emphasizing low noise, high accuracy, and robust reliability.
The MAX6175BASA belongs to the MAX6173–MAX6177 family of high-precision voltage references with integrated temperature sensing, engineered specifically for applications needing simultaneous accurate voltage referencing and on-die thermal monitoring in harsh environments.
FAQ
What is the guaranteed output voltage tolerance for MAX6175BASA over temperature?
The MAX6175BASA guarantees ±0.10% initial accuracy at +25°C and ≤10ppm/°C temperature coefficient over –40°C to +125°C. This translates to a total output variation of ≤±0.5% across the full automotive temperature range, confirmed by production testing and datasheet limits.
Can MAX6175BASA operate without an output capacitor?
Yes, MAX6175BASA does not require an output bypass capacitor for stability and is explicitly characterized to remain stable with capacitive loads up to 100µF. This eliminates a common BOM item and saves PCB area in space-critical automotive and portable designs.
How is the TEMP output of MAX6175BASA calibrated and used?
The MAX6175BASA TEMP pin outputs 630mV at +25°C with a slope of 2.1mV/°C, directly proportional to die temperature. It requires no external calibration; users measure the voltage and compute temperature as T(°C) = (VTEMP − 630mV) / 2.1mV/°C + 25°C, assuming negligible self-heating.
What is the maximum allowable input voltage for MAX6175BASA?
The absolute maximum input voltage for MAX6175BASA is +42V, but the guaranteed operating range is +7.0V to +40.0V. Operation below +7V may cause regulation loss; above +40V violates specification and risks permanent damage per Absolute Maximum Ratings.
Does MAX6175BASA support output voltage trimming, and how is it implemented?
Yes, MAX6175BASA supports ±6% output adjustment via its 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, enabling post-assembly calibration without firmware changes.
MAX6175BASA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 30 mA
- Tolerance:
- ±0.1%
- Temperature Coefficient:
- 10ppm/°C
- Noise - 0.1Hz to 10Hz:
- 9µVp-p
- Noise - 10Hz to 10kHz:
- 14.5µVrms
- Voltage - Input:
- 7V ~ 40V
- Current - Supply:
- 700µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX6175BASA FAQ
1.How can I place an order for MAX6175BASA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6175BASA 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 MAX6175BASA reliable?
The price and inventory of MAX6175BASA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6175BASA is usually 5 days.
3.What payment methods are accepted for MAX6175BASA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6175BASA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6175BASA?
MAX6175BASA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6175BASA 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 MAX6175BASA?
For technical support, including MAX6175BASA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6175BASA requirements.
6.How does Aetrix verify that MAX6175BASA is sourced from the original manufacturer or authorized distributors?
All MAX6175BASA 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 MAX6175BASA meets industry standards.
7.What is the process for return or replacement of MAX6175BASA?
All MAX6175BASA units undergo pre-shipment inspection (PSI). If there is an issue with MAX6175BASA, 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 MAX6175BASA part is unused and in its original packaging.
Return procedure for MAX6175BASA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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