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Analog Devices Inc./Maxim Integrated MAX6175BASA/V+
- Part No.:
- MAX6175BASA/V+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX6175BASA/V+.pdf
- Description:
- IC VREF SERIES 0.1% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:281
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Product details
Overview
MAX6175BASA/V+ from Maxim Integrated is a high-precision, low-noise 5.0V voltage reference with integrated temperature sensor output, featuring ±0.1% initial accuracy, 3ppm/°C max temperature coefficient over –40°C to +125°C, and 9µVRMS (10Hz–1kHz) noise performance. It sources up to 30mA and operates from 7V to 40V input, enabling use in automotive A/D converters, precision DACs, and industrial threshold detectors requiring stable, calibrated references.
For engineers reviewing the MAX6175BASA/V+ datasheet, MAX6175BASA/V+ pinout, MAX6175BASA/V+ application, or MAX6175BASA/V+ equivalent, key selection criteria include its AEC-Q100 qualified automotive temperature range, TRIM-adjustable output, TEMP output linearity (2.1mV/°C), and capacitor-free stability up to 100µF load-critical for space-constrained, high-reliability systems.
Technical Context
The MAX6175BASA/V+ uses bandgap-based architecture with proprietary curvature-correction circuitry and 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 external resistive divider on the TRIM pin (±6% adjustment range), draws only 320µA typical quiescent current, and maintains stability without output bypass capacitors-enabling direct connection to high-capacitance loads up to 100µF while retaining 0.1% settling in 230µs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.0V ±0.1% (4.995V–5.005V at +25°C, no load) - ensures 12-bit accuracy retention over full automotive temperature range |
| Tempco (TCVOUT) | 3ppm/°C max (–40°C to +125°C) - enables ≤1 LSB error in 16-bit ADCs over 165°C span |
| Noise (10Hz–1kHz) | 9.3µVRMS - supports 18-bit effective resolution in precision data acquisition |
| Supply Current | 320µA typ / 550µA max (+25°C), 700µA max (–40°C to +125°C) - minimizes self-heating and extends battery life |
| TEMP Output | 630mV ±155mV at +25°C, 2.1mV/°C slope - provides factory-calibrated die temperature sensing without external components |
| Load Drive | Sources 30mA / sinks 2mA - drives ADC reference inputs, op-amp bias networks, and small logic loads directly |
| Input Voltage Range | 7.0V to 40.0V - accommodates wide automotive supply rails and industrial 24V systems |
Pinout & Package
MAX6175BASA/V+ 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 externally to avoid interference or damage |
| 2 | IN | Positive power-supply input; accepts 7V–40V; requires 0.1µF ceramic decoupling near pin for optimal line transient response |
| 3 | TEMP | Temperature-proportional analog output; 2.1mV/°C slope; 630mV nominal at +25°C; high-impedance node-buffer if driving >10kΩ load |
| 4 | GND | Analog ground reference; must be low-impedance, star-connected to minimize noise coupling into reference path |
| 5 | TRIM | Voltage-adjust input; connects to center tap of resistive divider between OUT and GND; enables ±6% output fine-tuning |
| 6 | OUT | Precision 5.0V reference output; stable with 0–100µF capacitive loads; no bypass capacitor required for stability |
| 7 | N.C. | No internal connection; left floating; no electrical function |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Qualified | Qualified for automotive applications per /V+ suffix; guaranteed operation from –40°C to +125°C junction temperature |
| Capacitor-Free Stability | Stable with 0–100µF output capacitance-eliminates board area and BOM cost of output bypass capacitor |
| Integrated Temp Sensor | Linear TEMP output (2.1mV/°C) enables system-level die temperature monitoring without external sensor or calibration |
| Short-Circuit Protection | 60mA current limit when OUT shorted to GND; 3mA limit when OUT shorted to IN-prevents latch-up and thermal runaway |
| Low Long-Term Drift | 50ppm drift over 1000 hours at +25°C-reduces recalibration frequency in metrology and test equipment |
Applications
| Automotive Engine Control Unit (ECU) | Industrial Data Acquisition System |
|---|---|
Use Scenario: Reference for 16-bit ADC sampling crankshaft position, throttle angle, and oxygen sensor signals under under-hood temperature cycling. IC Role / Device Role / Timing Role: Primary voltage reference providing stable 5.0V基准 for ADC conversion; TEMP pin monitors microcontroller die temperature for thermal derating. Use Value: 3ppm/°C tempco ensures ≤0.5 LSB error over –40°C to +125°C; AEC-Q100 qualification guarantees reliability in harsh automotive environments. | Use Scenario: High-accuracy reference for multi-channel 24-bit sigma-delta ADC measuring strain gauges and RTDs in factory-floor PLC modules. IC Role / Device Role / Timing Role: Precision reference source with ultra-low 9.3µVRMS noise; TRIM pin enables field calibration to compensate for PCB trace resistance errors. Use Value: Capacitor-free stability simplifies layout in dense I/O modules; 30mA sourcing drives multiple ADC reference inputs and bias networks simultaneously. |
| Medical Patient Monitor Front-End | Test & Measurement Digital Voltmeter |
Use Scenario: Reference for ECG and SpO₂ analog front-end ADCs where baseline stability and low noise are critical for detecting microvolt-level biopotentials. IC Role / Device Role / Timing Role: Low-noise 5.0V reference with <10µVRMS broadband noise; TEMP output used for ambient temperature compensation of sensor gain stages. Use Value: 0.1% initial accuracy and 50ppm long-term drift meet IEC 60601-1 calibration validity requirements; RoHS-compliant /V+ suffix satisfies medical regulatory traceability. | Use Scenario: Core reference in handheld 6½-digit DVM requiring sub-ppm stability and minimal thermal hysteresis during repeated warm-up/cool-down cycles. IC Role / Device Role / Timing Role: Primary reference with 120ppm thermal hysteresis and 3ppm/°C tempco; TRIM allows end-of-line calibration to null out system offset. Use Value: 230µs turn-on settling enables fast auto-ranging; 7V–40V input range supports both battery and mains-powered operation without external regulators. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF5050AIDR | 5.0V, 3ppm/°C max, 0.05% initial accuracy, 5.5µVRMS noise, SO-8, but no TEMP output or TRIM pin | Lacks integrated temperature sensing and output adjust capability-requires external circuitry for those functions | Select when lowest noise and highest initial accuracy are prioritized over integrated diagnostics and field calibration |
| ADR4550BRZ | 5.0V, 3ppm/°C max, 0.02% initial accuracy, 7.5µVRMS noise, SO-8, includes trim pin but no TEMP output | Higher initial accuracy and lower noise than MAX6175BASA/V+, but no die temperature monitoring capability | Choose for metrology-grade applications where absolute accuracy outweighs system-level thermal awareness |
Compared with REF5050AIDR and ADR4550BRZ, the MAX6175BASA/V+ uniquely integrates a calibrated temperature sensor and adjustable output in a single AEC-Q100 qualified SO-8 package-reducing component count and enabling real-time thermal compensation without sacrificing 3ppm/°C stability or 0.1% accuracy.
Availability
MAX6175BASA/V+ is available at Aetrix Electronics and suitable for automotive engine control units, industrial data acquisition systems, medical patient monitors, and test & measurement digital voltmeters requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6175BASA/V+ 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 specifically for high-accuracy, low-drift voltage referencing in safety-critical automotive and industrial systems-integrating precision bandgap references, temperature sensing, and output trimming in a single robust package.
FAQ
What is the maximum input voltage for MAX6175BASA/V+?
The MAX6175BASA/V+ supports a supply voltage range of 7.0V to 40.0V. Absolute maximum rating for IN-to-GND is +42V, but guaranteed operation and specifications apply only within the 7V–40V range. Exceeding 40V may degrade long-term stability or trigger internal protection circuits.
Does MAX6175BASA/V+ require an output bypass capacitor?
No, the MAX6175BASA/V+ does not require an output bypass capacitor for stability. It is designed to remain stable with capacitive loads from 0 to 100µF. Adding an output capacitor improves transient response but is optional-not needed for basic regulation integrity.
How accurate is the TEMP output of MAX6175BASA/V+?
The TEMP output of MAX6175BASA/V+ has a nominal value of 630mV at +25°C with a tolerance of ±155mV across –40°C to +125°C, and a calibrated slope of 2.1mV/°C. This enables die temperature estimation within ±5°C accuracy when self-heating is accounted for and the output is lightly loaded.
Can MAX6175BASA/V+ be used in AEC-Q100 automotive applications?
Yes, the /V+ suffix explicitly denotes AEC-Q100 qualification. The MAX6175BASA/V+ is tested and guaranteed for operation from –40°C to +125°C ambient temperature, with full specification compliance-including tempco, accuracy, and reliability-validated per AEC-Q100 Grade 0 requirements.
What is the purpose of the TRIM pin on MAX6175BASA/V+?
The TRIM pin on MAX6175BASA/V+ allows fine adjustment of the 5.0V output voltage using an external resistive divider between OUT and GND. With a 10kΩ potentiometer, it provides ±6% output adjustment range-enabling field calibration to compensate for system-level gain errors or PCB trace resistance.
MAX6175BASA/V+ 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:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX6175BASA/V+ FAQ
1.How can I place an order for MAX6175BASA/V+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6175BASA/V+ 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/V+ reliable?
The price and inventory of MAX6175BASA/V+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6175BASA/V+ is usually 5 days.
3.What payment methods are accepted for MAX6175BASA/V+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6175BASA/V+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6175BASA/V+?
MAX6175BASA/V+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6175BASA/V+ 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/V+?
For technical support, including MAX6175BASA/V+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6175BASA/V+ requirements.
6.How does Aetrix verify that MAX6175BASA/V+ is sourced from the original manufacturer or authorized distributors?
All MAX6175BASA/V+ 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/V+ meets industry standards.
7.What is the process for return or replacement of MAX6175BASA/V+?
All MAX6175BASA/V+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6175BASA/V+, 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/V+ part is unused and in its original packaging.
Return procedure for MAX6175BASA/V+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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