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Analog Devices Inc./Maxim Integrated MAX6220ASA-5.0+T
- Part No.:
- MAX6220ASA-5.0+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX6220ASA-5.0+T.pdf
- Description:
- IC VREF SERIES 0.1% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,842
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Product details
Overview
MAX6220ASA-5.0+T from Maxim Integrated is a precision +5.0V voltage reference IC using buried-zener technology, delivering ±0.1% initial accuracy, 20ppm/°C temperature coefficient over –40°C to +125°C, and 3.0µVp-p (0.1Hz–10Hz) output noise - ideal for 16-bit data acquisition systems in automotive and industrial environments.
For engineers reviewing the MAX6220ASA-5.0+T datasheet, MAX6220ASA-5.0+T pinout, MAX6220ASA-5.0+T application, or MAX6220ASA-5.0+T equivalent, key selection criteria include low-drift stability under wide input voltage (8V–40V), ±15mA source/sink capability, trim-adjustable output (±30mV), and guaranteed performance with all capacitive loads up to 100µF.
Technical Context
The MAX6220ASA-5.0+T implements a temperature-compensated buried-zener core with on-chip trimming circuitry, enabling laboratory-grade stability without heater power. Its architecture supports simultaneous high DC precision and low broadband noise via dedicated NR pin filtering and internal low-output-impedance design.
It operates across an 8V–40V input range while maintaining ±0.01% turn-on settling in 5µs and stable regulation under dynamic load transients (±10mA sourcing/sinking), making it suitable for high-resolution ADC biasing, precision current-source references, and closed-loop sensor excitation circuits requiring minimal thermal drift.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | +5.000V ±0.005V at +25°C - ensures 16-bit DAC/ADC full-scale accuracy without calibration |
| Temp Coefficient | 20ppm/°C max (–40°C to +125°C) - enables <±0.8mV total drift across automotive temp range |
| Initial Accuracy | ±0.1% - reduces system-level gain error in precision measurement front-ends |
| Output Noise | 3.0µVp-p (0.1Hz–10Hz), 2.5–5.0µVRMS (10Hz–1kHz) - preserves SNR in high-resolution analog signal chains |
| Load Current | ±15mA sourcing/sinking - drives op-amp inputs, DAC references, and current-sense amplifiers directly |
| Input Voltage | 8V to 40V - accommodates unregulated industrial rails and automotive battery variations |
| Long-Term Stability | 20ppm/1000hr - maintains calibration integrity in field-deployed instrumentation |
Pinout & Package
MAX6220ASA-5.0+T is housed in an 8-pin SOIC (SO) package with exposed pad not electrically connected. Pin 1, 7, and 8 are internally connected and must remain unconnected on PCB.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7, 8 | I.C. | Internally connected - no external connection; floating or grounded traces cause no effect |
| 2 | IN | Positive supply input - accepts 8V–40V; bypass capacitor recommended for ripple rejection |
| 3 | NR | Noise reduction - connects to 1µF capacitor to reduce wideband noise; open if unused |
| 4 | GND | Analog ground reference - low-impedance return path critical for noise and stability |
| 5 | TRIM | External voltage trim - ±30mV adjustment range via 10kΩ potentiometer; does not degrade tempco |
| 6 | OUT | Precision +5.0V output - stable with 0–100µF capacitive loads; drives up to ±15mA |
Key Features
| Feature | Design Value |
|---|---|
| Buried-zener core | Enables ultra-low 1/f noise and superior long-term stability vs. bandgap references |
| Trim-adjustable output | ±30mV fine-tuning (±0.6%) without compromising temperature coefficient or noise |
| Stable with all capacitive loads | Eliminates need for output capacitor selection or stability analysis - supports 0–100µF |
| Low 5µs turn-on settling | Enables fast power-up sequencing in battery-powered or duty-cycled precision instruments |
| High PSRR | ≥60dB ripple rejection up to 10kHz (with NR cap) - suppresses switching regulator noise coupling |
Applications
| High-Accuracy Industrial Control | Automotive Sensor Signal Conditioning |
|---|---|
Use Scenario: Programmable logic controller (PLC) analog input modules measuring 4–20mA current loops with 16-bit resolution. IC Role / Device Role / Timing Role: Primary voltage reference for sigma-delta ADC and programmable gain amplifier biasing. Use Value: ±0.1% initial accuracy and 20ppm/°C drift ensure <±0.01% total system gain error across –40°C to +70°C operating range. | Use Scenario: Engine control unit (ECU) oxygen sensor interface with cold-start calibration requirements. IC Role / Device Role / Timing Role: Stable excitation reference for Nernst cell heater and precision ratiometric ADC reference. Use Value: Buried-zener low-noise performance preserves signal integrity during transient-rich engine cranking events. |
| ATE Equipment Reference Source | Precision Current Source Calibration |
Use Scenario: Automated test equipment generating calibrated voltage stimuli for DUT power-rail validation. IC Role / Device Role / Timing Role: Master reference for DAC-controlled voltage sources requiring traceable metrology-grade stability. Use Value: 20ppm/1000hr long-term stability minimizes recalibration frequency in production test systems. | Use Scenario: Medical infusion pump current driver with closed-loop torque sensing and safety-critical compliance. IC Role / Device Role / Timing Role: Setpoint reference for high-side current mirror with feedback to op-amp error amplifier. Use Value: ±15mA sink/source capability allows direct drive of op-amp inputs without buffer stages, reducing board area and thermal drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF5050AIDR | 5.0V output, 3ppm/°C max tempco, 1.6µVp-p noise, but only ±10mA output current and narrower 3.3V–18V input range | Better noise and drift, but unsuitable for high-current or wide-input-voltage industrial designs | Select REF5050AIDR when ultra-low drift dominates over load drive and input flexibility |
| ADR4550BRZ | 5.0V output, 3ppm/°C max tempco, 1.75µVp-p noise, ±10mA output, requires external compensation for >10µF loads | Superior precision, but lacks inherent capacitive-load stability and high-current drive of MAX6220ASA-5.0+T | Choose ADR4550BRZ for metrology-grade lab equipment where layout constraints allow careful output capacitance management |
Compared with REF5050AIDR and ADR4550BRZ, the MAX6220ASA-5.0+T trades marginal drift/noise performance for robustness in harsh environments - offering wider input voltage, higher output current, and unconditional capacitive-load stability essential for industrial and automotive deployment.
Availability
MAX6220ASA-5.0+T is available at Aetrix Electronics and suitable for high-accuracy industrial control, automotive sensor interfaces, and ATE equipment requiring stable component supply across extended temperature and voltage ranges.
Supply support for MAX6220ASA-5.0+T 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 MAX6220 series targets high-stability voltage reference needs in 16-bit+ data conversion systems, emphasizing low noise, wide temperature operation, and rugged load compatibility - distinct from general-purpose bandgap references.
FAQ
What is the maximum input voltage rating for MAX6220ASA-5.0+T?
The absolute maximum input voltage for MAX6220ASA-5.0+T is +42V referenced to GND. The recommended operating range is 8V to 40V. Exceeding +42V may cause permanent damage. This wide input range allows direct use with unregulated industrial supplies and automotive battery systems, including load-dump transients when properly clamped.
Does MAX6220ASA-5.0+T require an output capacitor for stability?
No - MAX6220ASA-5.0+T is explicitly specified as stable with all capacitive loads from 0µF to 100µF, regardless of load current. Unlike many references, it does not require minimum output capacitance or external compensation networks, simplifying layout and improving reliability in variable-load applications.
Can the output voltage of MAX6220ASA-5.0+T be adjusted, and by how much?
Yes - the TRIM pin of MAX6220ASA-5.0+T supports external adjustment of the output voltage over a range of ±30mV (±0.6%) using a 10kΩ potentiometer. This adjustment does not degrade temperature coefficient, noise, or long-term stability, enabling fine calibration without sacrificing core performance metrics.
What is the typical noise performance of MAX6220ASA-5.0+T in the 0.1Hz to 10Hz band?
The typical output noise of MAX6220ASA-5.0+T is 3.0µVp-p in the 0.1Hz to 10Hz band, measured with CNR = 0µF. Adding a 1µF capacitor to the NR pin further reduces wideband noise. This low 1/f noise is critical for high-resolution DC measurements and precision weighing applications where low-frequency drift dominates error budgets.
Is MAX6220ASA-5.0+T qualified for automotive temperature range operation?
Yes - MAX6220ASA-5.0+T is fully specified and tested over –40°C to +125°C, meeting automotive-grade temperature requirements. Its 20ppm/°C max temperature coefficient, ±0.1% initial accuracy, and 20ppm/1000hr long-term stability are guaranteed across this full range, making it suitable for under-hood and transmission-control module applications.
MAX6220ASA-5.0+T 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:
- Active
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 15 mA
- Tolerance:
- ±0.1%
- Temperature Coefficient:
- 20ppm/°C
- Noise - 0.1Hz to 10Hz:
- 3µVp-p
- Noise - 10Hz to 10kHz:
- 2.5µVrms
- Voltage - Input:
- 8V ~ 40V
- Current - Supply:
- 3.7mA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX6220ASA-5.0+T FAQ
1.How can I place an order for MAX6220ASA-5.0+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6220ASA-5.0+T 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 MAX6220ASA-5.0+T reliable?
The price and inventory of MAX6220ASA-5.0+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6220ASA-5.0+T is usually 5 days.
3.What payment methods are accepted for MAX6220ASA-5.0+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6220ASA-5.0+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6220ASA-5.0+T?
MAX6220ASA-5.0+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6220ASA-5.0+T 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 MAX6220ASA-5.0+T?
For technical support, including MAX6220ASA-5.0+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6220ASA-5.0+T requirements.
6.How does Aetrix verify that MAX6220ASA-5.0+T is sourced from the original manufacturer or authorized distributors?
All MAX6220ASA-5.0+T 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 MAX6220ASA-5.0+T meets industry standards.
7.What is the process for return or replacement of MAX6220ASA-5.0+T?
All MAX6220ASA-5.0+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6220ASA-5.0+T, 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 MAX6220ASA-5.0+T part is unused and in its original packaging.
Return procedure for MAX6220ASA-5.0+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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