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Analog Devices Inc./Maxim Integrated MAX6220ASA-4.1
- Part No.:
- MAX6220ASA-4.1
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX6220ASA-4.1.pdf
- Description:
- VOLTAGE REFERENCE
- Quantity:
- Payment:
- Shipping:
Inventory:1,429
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Product details
Overview
MAX6220ASA-4.1 from Maxim Integrated is a precision +4.096V voltage reference IC using buried-zener technology, delivering ±0.1% initial accuracy, 20ppm/°C temperature coefficient over -40°C to +125°C, and 2.4µVp-p (0.1Hz–10Hz) output noise - optimized for 16-bit data converters in automotive and industrial systems.
For engineers reviewing the MAX6220ASA-4.1 datasheet, MAX6220ASA-4.1 pinout, MAX6220ASA-4.1 application, or MAX6220ASA-4.1 equivalent, key selection criteria include low-noise performance, wide 8V–40V input range, ±15mA source/sink capability, trim-adjustable output, and stability with all capacitive loads up to 100µF.
Technical Context
The MAX6220ASA-4.1 implements a temperature-compensated buried-zener core with optional NR pin filtering and TRIM pin adjustment, enabling high DC stability without heater power. Its architecture supports simultaneous sourcing and sinking up to ±15mA while maintaining <30ppm/mA load regulation and <45ppm/V line regulation.
It features low-output-impedance broadband response (<1Ω at 10kHz), excellent transient recovery (<5µs settling to ±0.01%), and ripple rejection >85dB at 1kHz - critical for precision ADC biasing and closed-loop current-source control in noisy supply environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | +4.096V nominal, ±0.1% initial tolerance (±4.1mV absolute error at 25°C) |
| Temp. Coefficient | 20ppm/°C max over -40°C to +125°C (±0.5mV drift across full range) |
| Output Noise | 2.4µVp-p (0.1Hz–10Hz); 2.0µVRMS (10Hz–1kHz) - enables 16-bit effective resolution |
| Load Regulation | 30ppm/mA max (±0.12mV/mA) for ±15mA sourcing/sinking - supports dynamic load switching |
| Input Range | 8V to 40V DC - compatible with unregulated automotive and industrial rails |
| Trim Range | ±24mV min (±0.59%) via external potentiometer - preserves tempco during calibration |
| Long-Term Stability | 20ppm/1000hr - ensures calibration integrity in field-deployed instrumentation |
Pinout & Package
MAX6220ASA-4.1 is housed in an 8-pin SOIC (SO) package (drawing 21-0041B), 3.9mm × 4.9mm body, 1.27mm pitch, RoHS-compliant lead-free variant available as MAX6220ASA-4.1+.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7, 8 | I.C. | Internally connected - must be left unconnected; no external routing or loading |
| 2 | IN | Positive power input (8V–40V); bypass capacitor recommended for ripple suppression |
| 3 | NR | Noise reduction node - accepts 1µF capacitor to reduce wideband noise by >10dB |
| 4 | GND | Analog ground reference - star-point connection required for low-noise layout |
| 5 | TRIM | Voltage-adjust input - enables ±24mV trim via 10kΩ potentiometer without degrading tempco |
| 6 | OUT | Precision +4.096V reference output - stable with 0–100µF capacitive loads; drives ±15mA |
Key Features
| Feature | Design Value |
|---|---|
| Buried-zener core | Enables ultra-low 2.4µVp-p noise and 20ppm/°C tempco without heater power or oven control |
| Stable with all capacitive loads | Eliminates need for output-phase compensation - supports direct connection to ADC reference inputs and op-amp feedback networks |
| Optional NR pin filtering | 1µF capacitor reduces broadband noise floor by >10dB without affecting DC accuracy or settling time |
| ±15mA source/sink capability | Drives precision current sources, DAC buffers, and sensor excitation circuits without external amplification |
| 8V–40V wide input range | Operates directly from unregulated 12V/24V automotive or industrial supplies - no LDO pre-regulation needed |
Applications
| High-Accuracy Industrial Control | ATE Equipment |
|---|---|
Use Scenario: Precision analog input modules in PLCs and DCS systems measuring thermocouples, RTDs, and strain gauges. IC Role / Device Role / Timing Role: Primary voltage reference for 16-bit SAR and sigma-delta ADCs, providing stable VREF under varying ambient temperatures. Use Value: 20ppm/°C tempco and ±0.1% initial accuracy ensure <0.01% total measurement error across -40°C to +125°C operating range. | Use Scenario: Calibration-grade reference in automated test equipment for semiconductor parametric testing. IC Role / Device Role / Timing Role: Reference source for programmable current sources and high-resolution digitizers requiring traceable metrology-grade stability. Use Value: 20ppm/1000hr long-term stability and 2.4µVp-p low-frequency noise enable repeatable sub-LSB measurements over extended test cycles. |
| Precision Current Sources | High-Resolution Data Acquisition |
Use Scenario: Four-wire RTD excitation and transducer biasing in medical and aerospace sensors. IC Role / Device Role / Timing Role: Stable reference for op-amp-based Howland current sources, defining exact output magnitude independent of supply variation. Use Value: ±15mA sourcing/sinking and <30ppm/mA load regulation maintain <10ppm current accuracy despite load impedance changes. | Use Scenario: Reference for 16-bit data loggers capturing vibration, acoustic, or environmental signals. IC Role / Device Role / Timing Role: Low-noise VREF for successive-approximation ADCs, minimizing quantization uncertainty in low-amplitude signal bands. Use Value: 2.4µVp-p (0.1Hz–10Hz) noise contributes <0.4 LSB RMS noise in 4.096V full-scale 16-bit system - preserving dynamic range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR444BRZ | +4.096V output, 3ppm/°C max tempco, 1.8µVp-p noise, but only ±10mA output drive and 7V–18V input range | Better noise/tempco, but unsuitable for 24V industrial rails or high-current sensor biasing | Select when ultra-low drift dominates over input voltage flexibility and output drive |
| REF5040AIDR | +4.096V output, 6ppm/°C max tempco, 3.5µVp-p noise, ±10mA drive, 4.6V–18V input, integrated thermal shutdown | Lower power (1.2mA IQ) and safety features, but narrower input range and higher noise than MAX6220ASA-4.1 | Select for battery-powered or thermally constrained designs where 8V–40V operation is unnecessary |
Compared with ADR444BRZ and REF5040AIDR, MAX6220ASA-4.1 uniquely balances wide 8V–40V input compatibility, ±15mA drive strength, and automotive-grade -40°C to +125°C stability - making it optimal for industrial and automotive data acquisition where supply rail variability and load dynamics are critical.
Availability
MAX6220ASA-4.1 is available at Aetrix Electronics and suitable for high-accuracy industrial control, ATE equipment, and precision current-source applications requiring stable component supply across extended temperature and voltage ranges.
Supply support for MAX6220ASA-4.1 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) is a U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, automotive, and communications markets.
The MAX6220 series belongs to Maxim's precision voltage reference product line, engineered specifically for laboratory-grade DC stability and low-noise operation in 16-bit+ data-conversion systems deployed in harsh environments.
FAQ
What is the output voltage tolerance and temperature coefficient of the MAX6220ASA-4.1?
The MAX6220ASA-4.1 has ±0.1% initial output voltage tolerance at +25°C, corresponding to ±4.1mV around its nominal +4.096V output. Its temperature coefficient is guaranteed at ≤20ppm/°C over the full -40°C to +125°C automotive temperature range, ensuring total drift of ≤±0.5mV across that interval. These specifications are measured per the box method and verified across production lots.
Can the MAX6220ASA-4.1 operate from a 24V unregulated supply?
Yes, the MAX6220ASA-4.1 supports an input voltage range of 8V to 40V DC, making it fully compatible with standard 24V industrial and automotive unregulated rails. No external pre-regulator is required. Its line regulation is specified at ≤45ppm/V, so output variation due to 24V ±10% supply fluctuation remains below ±11ppm - well within its overall accuracy budget.
Does the MAX6220ASA-4.1 require an output capacitor for stability?
No, the MAX6220ASA-4.1 is explicitly designed to be stable with any capacitive load from 0µF to 100µF, regardless of load current. Unlike many references, it does not require a minimum output capacitance for phase margin. An output capacitor may be added to reduce high-frequency noise or transient glitches, but it is optional and does not affect DC accuracy or stability margins.
How is noise reduced on the MAX6220ASA-4.1?
Noise reduction on the MAX6220ASA-4.1 is achieved via the NR (Noise Reduction) pin: connecting a 1µF capacitor from NR to GND attenuates wideband noise by >10dB without impacting DC performance or settling time. The device's intrinsic 2.4µVp-p (0.1Hz–10Hz) noise is already among the lowest in its class, and the NR pin provides additional headroom for ultra-sensitive applications like metrology-grade digitizers.
What is the maximum source and sink current capability of the MAX6220ASA-4.1?
The MAX6220ASA-4.1 guarantees ±15mA output current capability - both sourcing and sinking - while maintaining its specified load regulation of ≤30ppm/mA. This allows direct driving of precision current sources, op-amp reference inputs, and sensor excitation circuits without external buffers. Output voltage deviation remains within ±0.12mV/mA across the full ±15mA range at +25°C.
MAX6220ASA-4.1 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):
- 4.096V
- Voltage - Output (Max):
- -
- Current - Output:
- 15 mA
- Tolerance:
- ±0.1%
- Temperature Coefficient:
- 20ppm/°C
- Noise - 0.1Hz to 10Hz:
- 2.4µVp-p
- Noise - 10Hz to 10kHz:
- 2µVrms
- Voltage - Input:
- 8V ~ 40V
- Current - Supply:
- 3.5mA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX6220ASA-4.1 FAQ
1.How can I place an order for MAX6220ASA-4.1 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6220ASA-4.1 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-4.1 reliable?
The price and inventory of MAX6220ASA-4.1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6220ASA-4.1 is usually 5 days.
3.What payment methods are accepted for MAX6220ASA-4.1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6220ASA-4.1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6220ASA-4.1?
MAX6220ASA-4.1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6220ASA-4.1 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-4.1?
For technical support, including MAX6220ASA-4.1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6220ASA-4.1 requirements.
6.How does Aetrix verify that MAX6220ASA-4.1 is sourced from the original manufacturer or authorized distributors?
All MAX6220ASA-4.1 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-4.1 meets industry standards.
7.What is the process for return or replacement of MAX6220ASA-4.1?
All MAX6220ASA-4.1 units undergo pre-shipment inspection (PSI). If there is an issue with MAX6220ASA-4.1, 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-4.1 part is unused and in its original packaging.
Return procedure for MAX6220ASA-4.1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6220ASA-4.1 Tags
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