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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:
- IC VREF SERIES 0.1% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:7,608
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Product details
Overview
MAX6175BASA+ from Maxim Integrated is a high-precision, low-noise 5.0V voltage reference with integrated temperature sensor output, ±0.1% initial accuracy, 3ppm/°C max temperature coefficient over –40°C to +125°C, and 9µVRMS (10Hz–1kHz) noise performance - used in 16-bit ADC/DAC calibration, automotive sensor signal chains, and precision power monitoring.
For engineers reviewing the MAX6175BASA+ datasheet, MAX6175BASA+ pinout, MAX6175BASA+ application, or MAX6175BASA+ equivalent, this page delivers verified electrical specs, thermal transducer behavior, TRIM-adjustable output architecture, stability under capacitive loads up to 100µF, and AEC-Q100-compliant operation for automotive-grade designs.
Technical Context
The MAX6175BASA+ implements a curvature-corrected bandgap core with laser-trimmed thin-film resistors to achieve 3ppm/°C max TCVOUT across –40°C to +125°C. Its TEMP pin delivers a linear 2.1mV/°C analog voltage proportional to die temperature, calibrated at 630mV nominal at +25°C.
It supports active trimming via a resistive divider between OUT–TRIM–GND, enabling ±6% output adjustment range. The device operates from 7.0V to 40V input, draws 320µA typical quiescent current, sources up to 30mA, sinks up to 2mA, and requires no output bypass capacitor for stability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.0V ±0.1% (4.995V–5.005V at +25°C, no load) - enables direct interface with 5V ADC reference inputs without gain scaling. |
| Tempco (TCVOUT) | 3ppm/°C max (–40°C to +125°C) - ensures ≤0.5 LSB error in 16-bit systems over full automotive temperature range. |
| Noise (10Hz–1kHz) | 9.3µVRMS - maintains SNR >108dB in high-resolution data acquisition front-ends. |
| Supply Current | 320µA typ / 550µA max at +25°C - reduces system power budget in battery-backed instrumentation. |
| TEMP Output | 630mV ±155mV at +25°C, 2.1mV/°C slope - provides factory-calibrated die temperature sensing without external compensation. |
| Load Drive | Sources 30mA / sinks 2mA - directly drives ADC reference buffers, op-amp bias networks, or small logic loads. |
| Input Range | 7.0V to 40V - accommodates unregulated 12V/24V automotive rails and industrial supplies with minimal dropout. |
Pinout & Package
MAX6175BASA+ 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 | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8 | I.C. | Internally connected - must remain unconnected on PCB; no external routing or pull-up/pull-down. |
| 2 | IN | Positive supply input - accepts 7.0V to 40V; requires local 0.1µF ceramic decoupling near pin. |
| 3 | TEMP | Digital die temperature transducer output - provides 2.1mV/°C analog voltage; high-impedance source; avoid loading beyond 10kΩ. |
| 4 | GND | Analog ground reference - must connect to clean, low-impedance system ground plane; separate from digital ground if possible. |
| 5 | TRIM | Voltage-adjust input - connects to center tap of resistive divider (OUT–TRIM–GND); enables ±6% output tuning without trimming potentiometer drift. |
| 6 | OUT | Precision 5.0V reference output - stable with 0–100µF capacitive loads; sources 30mA; short-circuit protected to GND (60mA limit) and IN (3mA limit). |
| 7 | N.C. | No internal connection - left floating; no PCB trace or pad required. |
Key Features
| Feature | Design Value |
|---|---|
| Curvature-corrected bandgap | Enables 3ppm/°C tempco without external compensation circuitry - eliminates need for TCXO-style calibration. |
| Integrated TEMP output | Factory-calibrated 2.1mV/°C analog temperature sensor - replaces discrete thermistor + amplifier in space-constrained modules. |
| TRIM-adjustable output | ±6% fine-tuning via external resistor network - allows field calibration to compensate for PCB trace resistance or layout-induced errors. |
| No output capacitor required | Stable with 0–100µF capacitive loads - saves board area and avoids ESR-related instability in harsh environments. |
| AEC-Q100 qualified | Qualified for automotive applications (Grade 0: –40°C to +125°C) - meets stress testing requirements for engine control and ADAS subsystems. |
Applications
| Automotive Engine Control Unit (ECU) | Industrial 16-bit Data Acquisition |
|---|---|
Use Scenario: Reference voltage for crankshaft position sensor ADC and knock sensor signal conditioning in under-hood ECU modules. IC Role / Device Role / Timing Role: Primary 5.0V precision reference and on-die temperature monitor for real-time thermal derating of ignition timing. Use Value: 3ppm/°C tempco ensures <0.5 LSB error over –40°C to +125°C; TEMP output replaces external NTC, reducing BOM count by one component. |
Use Scenario: Reference for 16-bit SAR ADC in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Stable 5.0V reference with ultra-low 9.3µVRMS noise, enabling >108dB SNR in 100ksps sampling. Use Value: No output capacitor needed simplifies layout in dense I/O card designs; TRIM pin allows post-assembly calibration to meet ±0.05% system accuracy spec. |
| Medical Patient Monitor Front-End | Test & Measurement Calibration Source |
Use Scenario: Reference for ECG/EEG analog front-end ADCs requiring low drift and low noise in portable battery-powered devices. IC Role / Device Role / Timing Role: Low-quiescent-current (320µA typ) 5.0V reference with integrated die temperature sensing for ambient compensation. Use Value: 320µA supply current extends battery life; TEMP output enables automatic gain correction based on thermal drift of front-end amplifiers. |
Use Scenario: Precision voltage source in handheld multimeter reference subsystems requiring long-term stability and traceable calibration. IC Role / Device Role / Timing Role: 5.0V reference with 50ppm/1000h long-term stability and ±0.1% initial accuracy - serves as internal calibration standard. Use Value: Laser-trimmed thin-film resistors ensure metrology-grade repeatability; no external trim pots reduce aging-related drift in field-deployed instruments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR4550BRZ | 5.0V, 0.02% initial accuracy, 3ppm/°C tempco, 5.6µVRMS noise, but no TEMP output or TRIM pin. | Lacks integrated temperature sensor and output adjust capability - requires external circuitry for thermal monitoring or calibration. | Select when lowest noise and highest initial accuracy are critical, and temperature sensing is handled separately. |
| REF5050AIDR | 5.0V, 0.05% initial accuracy, 3ppm/°C tempco, 4.8µVRMS noise, SO-8 package, but no TEMP output or TRIM function. | Higher initial accuracy than MAX6175BASA+, but no on-chip temperature transducer - limits use in self-monitoring systems. | Choose for metrology-grade applications where absolute accuracy outweighs functional integration. |
Compared with ADR4550BRZ and REF5050AIDR, MAX6175BASA+ trades minor noise and initial accuracy penalties for unique dual functionality: factory-calibrated die temperature sensing and field-adjustable output - reducing total component count and enabling smarter, self-aware analog subsystems.
Availability
MAX6175BASA+ is available at Aetrix Electronics and suitable for automotive engine control units, industrial PLC analog input modules, medical patient monitor front-ends, and portable test equipment requiring stable component supply across extended temperature ranges.
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 high-performance analog, mixed-signal, and power management ICs for demanding industrial, automotive, and communications applications.
The MAX6173–MAX6177 family was engineered to deliver high-accuracy, low-drift voltage references with integrated temperature sensing - targeting applications where space, BOM count, and thermal awareness are critical constraints.
FAQ
What is the guaranteed initial accuracy of MAX6175BASA+?
The MAX6175BASA+ guarantees ±0.1% initial output voltage accuracy at +25°C with no load, corresponding to a 4.995V–5.005V range for its nominal 5.0V output. This specification is tested and binned during production, and applies across the full operating temperature range when combined with its 3ppm/°C tempco performance.
Does MAX6175BASA+ require an output capacitor for stability?
No - the MAX6175BASA+ is internally compensated and remains stable with 0–100µF capacitive loads. Unlike many references, it does not require an output bypass capacitor, simplifying layout and saving board area. A capacitor may be added to improve transient response, but it is never mandatory for stability.
How is the TEMP output of MAX6175BASA+ calibrated and used?
The TEMP pin of MAX6175BASA+ outputs a voltage linearly proportional to die temperature at 2.1mV/°C, with a nominal 630mV at +25°C. It is factory-calibrated and requires no external components. To use it, connect TEMP to an ADC input with ≥10kΩ input impedance; avoid loading to preserve accuracy.
Can MAX6175BASA+ be trimmed to adjust its 5.0V output?
Yes - the MAX6175BASA+ features a dedicated TRIM pin that accepts a resistive divider between OUT and GND. With a 10kΩ potentiometer, it supports ±6% output adjustment (4.7V–5.3V). The trim function is implemented via internal feedback scaling, preserving linearity and tempco across the adjusted range.
Is MAX6175BASA+ qualified for automotive applications?
Yes - the MAX6175BASA+ is AEC-Q100 qualified (Grade 0) and specified for continuous operation from –40°C to +125°C. It meets automotive reliability and stress-test requirements, making it suitable for engine control, transmission, and ADAS subsystems where reference stability under thermal cycling is critical.
MAX6175BASA+ 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):
- 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 (TA)
- Grade:
- -
- Qualification:
- -
- 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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