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Analog Devices Inc./Maxim Integrated MAX6173BASA+TG002
- Part No.:
- MAX6173BASA+TG002
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX6173BASA+TG002.pdf
- Description:
- IC VREF SERIES 0.1% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,844
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Product details
Overview
MAX6173BASA+TG002 from Maxim Integrated is a high-precision, low-noise 2.5V voltage reference with integrated temperature sensor output (TEMP), ±0.1% initial accuracy, 3ppm/°C max temperature coefficient, and operation over -40°C to +125°C. It sources up to 30mA, draws only 320μA typical supply current, and requires no output bypass capacitor-enabling stable performance with capacitive loads up to 100μF in space-constrained high-resolution data acquisition systems.
For engineers reviewing the MAX6173BASA+TG002 datasheet, MAX6173BASA+TG002 pinout, MAX6173BASA+TG002 application, or MAX6173BASA+TG002 equivalent, key selection criteria include its factory-trimmed 2.5V output with TRIM input for ±6% adjustment, linear TEMP output (630mV at +25°C, 2.1mV/°C), automotive-grade AEC-Q100 qualification (per family), and stability without external compensation.
Technical Context
The MAX6173BASA+TG002 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 terminal provides a ratiometric analog voltage proportional to die temperature (2.1mV/°C), calibrated at 630mV ±155mV over full temperature range.
It features a dedicated TRIM input enabling fine output adjustment via external resistive divider, supports sourcing up to 30mA while sinking 2mA, and maintains stability under load transients without requiring output capacitance-unlike conventional references dependent on external COUT for phase margin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.5V nominal, ±0.1% initial accuracy (2.4975V to 2.5025V at +25°C) - ensures ≤1 LSB error in 12-bit ADCs over full temp range. |
| Tempco (TCVOUT) | 3ppm/°C max (−40°C to +125°C) - enables <±0.5mV drift over automotive temperature range. |
| Noise (0.1–10Hz) | 3.8µVP-P typical - critical for 16-bit+ SAR and delta-sigma ADCs where low-frequency noise dominates INL. |
| Supply Current | 320μA typical, 600μA max (−40°C to +125°C) - extends battery life in portable instrumentation and sensor nodes. |
| TEMP Output | 630mV at +25°C, 2.1mV/°C slope - provides direct die-temperature sensing without external signal conditioning. |
| Load Current | Sources 30mA / sinks 2mA - drives ADC reference inputs, DAC buffers, and comparator thresholds directly. |
| Input Voltage Range | +4.5V to +40V - accommodates wide-input industrial supplies and unregulated battery rails. |
Pinout & Package
MAX6173BASA+TG002 is housed in an 8-pin SO (Small Outline) package (package code S8+4, outline 21-0041), rated for −40°C to +125°C operation and qualified per AEC-Q100 Grade 0 for automotive use.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8 | I.C. | Internally connected; must remain unconnected externally - floating pins prevent parasitic coupling or ESD path misrouting. |
| 2 | IN | Positive power-supply input (4.5V to 40V); requires local 0.1µF ceramic decoupling for optimal line-transient rejection. |
| 3 | TEMP | Temperature-proportional analog output (630mV @ +25°C, 2.1mV/°C); high-impedance node - buffer required if loaded >10kΩ. |
| 4 | GND | Analog ground reference; must be star-connected to minimize ground bounce in mixed-signal systems. |
| 5 | TRIM | Voltage-adjust input; accepts 0V to VOUT; enables ±6% output tuning via external resistor divider - adds <1µA bias current to IIN. |
| 6 | OUT | Precision 2.5V reference output; capable of sourcing 30mA; stable with 0–100µF capacitive loads - eliminates need for output capacitor in most layouts. |
| 7 | N.C. | No internal connection; left unconnected - avoids unintended parasitic paths or thermal stress on unused bond wires. |
Key Features
| Feature | Design Value |
|---|---|
| Zero-output-capacitor stability | Stable with 0–100µF capacitive loads - saves PCB area and eliminates capacitor aging/reliability concerns in long-life systems. |
| Integrated temperature sensor | Linear TEMP output (2.1mV/°C) referenced to die temperature - enables on-chip thermal monitoring without external ICs or calibration. |
| Trim-adjustable output | ±6% output voltage tuning via external resistive divider on TRIM pin - allows field calibration and system-level gain trimming. |
| Short-circuit protection | 60mA current limit when OUT shorted to GND; 3mA limit when OUT shorted to IN - prevents damage during board-level fault conditions. |
| Automotive temperature range | Guaranteed operation from −40°C to +125°C - meets requirements for engine control, ADAS, and under-hood electronics. |
Applications
| High-Resolution Data Acquisition | Automotive Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Precision measurement of strain gauges, RTDs, and thermocouples in industrial PLCs and test equipment. IC Role / Device Role / Timing Role: Primary voltage reference for 16–24-bit sigma-delta ADCs, providing stable excitation and conversion基准. Use Value: 3.8µVP-P low-frequency noise and 3ppm/°C tempco ensure <±0.5 LSB total error over temperature - eliminating recalibration cycles. |
Use Scenario: Front-end signal conditioning for pressure, position, and exhaust gas sensors in engine management modules. IC Role / Device Role / Timing Role: Dual-role device: 2.5V reference for ADCs and TEMP output for real-time die-temperature compensation of sensor offsets. Use Value: On-die TEMP output enables closed-loop thermal correction of sensor nonlinearity - improving accuracy by up to 2°C over ambient-only compensation. |
| Portable Battery-Powered Instruments | Programmable Logic Controller (PLC) Analog I/O Modules |
|
Use Scenario: Handheld multimeters, digital voltmeters, and portable environmental monitors operating from single-cell Li-ion or AA batteries. IC Role / Device Role / Timing Role: Low-quiescent-current (320μA typ) reference powering precision ADCs and display drivers in sleep/wake cycles. Use Value: Ultra-low supply current extends battery runtime beyond 12 months in always-on monitoring applications - validated at −40°C to +125°C. |
Use Scenario: Modular analog input/output cards in industrial automation systems requiring high channel density and long-term calibration stability. IC Role / Device Role / Timing Role: Factory-trimmed 2.5V reference with TRIM pin enabling module-level calibration during production and field maintenance. Use Value: ±6% trim range allows end-of-line gain/offset correction without redesign - reducing calibration labor and scrap rate by >30%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF5025AIDR | 2.5V, 3ppm/°C max, 0.05% initial accuracy, 3.6µVP-P noise, SO-8 package, but no TEMP output or TRIM input. | Lacks integrated temperature sensing and output adjust capability - requires separate IC for thermal monitoring or calibration. | Select when highest initial accuracy and lowest noise are prioritized over system integration and field trim. |
| ADR4525BRZ | 2.5V, 3ppm/°C max, 0.02% initial accuracy, 3.75µVP-P noise, SO-8, includes enable pin but no TEMP or TRIM functionality. | No die-temperature output or voltage adjustment - limits use in self-calibrating or thermally compensated designs. | Choose for ultra-high-accuracy metrology applications where external thermal management and fixed reference are acceptable. |
Compared with REF5025AIDR and ADR4525BRZ, the MAX6173BASA+TG002 uniquely integrates temperature sensing and output trim in a single SO-8 package - reducing BOM count, PCB area, and calibration complexity in automotive and industrial systems requiring thermal awareness and field adjustment.
Availability
MAX6173BASA+TG002 is available at Aetrix Electronics and suitable for high-reliability automotive sensor modules, industrial data loggers, and portable test equipment requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for MAX6173BASA+TG002 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, 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 for next-generation data converters and sensor signal chains in harsh environments.
FAQ
What is the guaranteed initial accuracy of the MAX6173BASA+TG002?
The MAX6173BASA+TG002 guarantees ±0.1% initial accuracy (2.4975V to 2.5025V at +25°C, no load). This specification is tested and binned during production, ensuring compliance across the full −40°C to +125°C operating range without derating.
Does the MAX6173BASA+TG002 require an output bypass capacitor for stability?
No - the MAX6173BASA+TG002 is internally compensated and remains stable with 0–100µF capacitive loads. Unlike many references, it does not require an output capacitor, simplifying layout and improving reliability in space-constrained or high-vibration environments.
How is the TEMP output of the MAX6173BASA+TG002 calibrated and what is its usable range?
The TEMP output of the MAX6173BASA+TG002 is factory-calibrated to 630mV ±155mV at +25°C with a slope of 2.1mV/°C. It operates linearly from 300mV (−40°C) to 1130mV (+125°C), enabling direct die-temperature measurement without external amplification or lookup tables.
Can the MAX6173BASA+TG002 be used in automotive applications?
Yes - the MAX6173BASA+TG002 belongs to the MAX6173–MAX6177 family, which includes AEC-Q100 qualified variants (e.g., MAX6174BASA/V+ and MAX6175BASA/V+). While MAX6173BASA+TG002 itself is not individually AEC-Q100 certified, its SO-8 package, −40°C to +125°C rating, and automotive-grade design make it widely deployed in non-safety-critical automotive subsystems.
What is the maximum load current the MAX6173BASA+TG002 can source or sink?
The MAX6173BASA+TG002 can source up to 30mA and sink up to 2mA while maintaining output regulation within specified accuracy. Load regulation is characterized at ±10ppm/mA (sourcing) and ±900ppm/mA (sinking) over −40°C to +125°C - supporting direct drive of ADC reference inputs and op-amp buffers.
MAX6173BASA+TG002 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 2.5V
- Voltage - Output (Max):
- -
- Current - Output:
- 30 mA
- Tolerance:
- ±0.1%
- Temperature Coefficient:
- 10ppm/°C
- Noise - 0.1Hz to 10Hz:
- 3.8µVp-p
- Noise - 10Hz to 10kHz:
- 6.8µVrms
- Voltage - Input:
- 4.5V ~ 40V
- Current - Supply:
- 600µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX6173BASA+TG002 FAQ
1.How can I place an order for MAX6173BASA+TG002 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6173BASA+TG002 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 MAX6173BASA+TG002 reliable?
The price and inventory of MAX6173BASA+TG002 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6173BASA+TG002 is usually 5 days.
3.What payment methods are accepted for MAX6173BASA+TG002?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6173BASA+TG002 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6173BASA+TG002?
MAX6173BASA+TG002 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6173BASA+TG002 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 MAX6173BASA+TG002?
For technical support, including MAX6173BASA+TG002 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6173BASA+TG002 requirements.
6.How does Aetrix verify that MAX6173BASA+TG002 is sourced from the original manufacturer or authorized distributors?
All MAX6173BASA+TG002 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 MAX6173BASA+TG002 meets industry standards.
7.What is the process for return or replacement of MAX6173BASA+TG002?
All MAX6173BASA+TG002 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6173BASA+TG002, 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 MAX6173BASA+TG002 part is unused and in its original packaging.
Return procedure for MAX6173BASA+TG002:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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