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Analog Devices Inc. AD586SQ
- Part No.:
- AD586SQ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- 8-CDIP (0.300", 7.62mm)
- Datasheet:
-
AD586SQ.pdf
- Description:
- IC VREF SERIES 0.2% 8CERDIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,936
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Product details
Overview
AD586SQ from Analog Devices is a high-precision, laser-trimmed 5.000 V buried Zener voltage reference IC rated for −55°C to +125°C operation, with ±7.5 mV total output error over temperature, 20 ppm/°C max drift, and 100 nV/√Hz spectral noise density. It sources or sinks up to 10 mA and features dedicated noise reduction (Pin 8) and output trim (Pin 5) terminals for system-level calibration in precision data conversion.
For engineers reviewing the AD586SQ datasheet, AD586SQ pinout, AD586SQ application, or AD586SQ equivalent, this page delivers verified specifications, MIL-grade CERDIP package details, real-world converter interface guidance, and validated alternative options for high-reliability aerospace, defense, and industrial instrumentation designs.
Technical Context
The AD586SQ uses a proprietary ion-implanted buried Zener diode combined with laser-trimmed thin-film resistors to achieve superior long-term stability (15 ppm/1000 hr) and low thermal drift versus bandgap references. Its internal buffer amplifier enables ±10 mA load drive while maintaining <100 µV/mA sourcing load regulation.
Temperature performance is validated across −55°C, +25°C, and +125°C test points per MIL-STD-883, guaranteeing maximum output deviation of ±7.5 mV. The noise reduction pin (Pin 8) forms a configurable low-pass filter with an external 1 µF capacitor, reducing broadband noise from 200 µV p-p to ~160 µV p-p.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 4.990 V to 5.010 V at 25°C - ensures binary-compatible 5 V reference for 12–16-bit DACs/ADCs without recalibration. |
| Tempco (−55°C to +125°C) | 20 ppm/°C max - guarantees ≤±7.5 mV total error across full military temperature range. |
| Output Noise (0.1–10 Hz) | 4 µV p-p - supports high-resolution metrology where low-frequency drift dominates error budget. |
| Spectral Noise Density | 100 nV/√Hz at 100 Hz - enables low-noise signal chains in precision sensor front-ends. |
| Load Regulation (Sourcing) | 100 µV/mA - maintains <0.5 LSB error for 16-bit converters drawing up to 10 mA. |
| Quiescent Current | 2–3 mA - allows stable operation from 12–15 V supplies with <30 mW power consumption. |
| Short-Circuit Current | 45–60 mA - provides robust fault tolerance during board-level transient events. |
Pinout & Package
AD586SQ is supplied in an 8-lead CERDIP package (Q-8), compliant with MIL-STD-883, featuring hermetic ceramic sealing and gold-plated leads for high-reliability environments. Pin 1, Pin 3, and Pin 7 are internal factory test points and must remain unconnected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | TP1 | Factory trim pad - no external connection permitted; dummy PCB pad only. |
| Pin 2 | VIN | Positive supply input (10.8–36 V); powers internal Zener and buffer amplifier. |
| Pin 3 | TP1 | Factory trim pad - no external connection permitted; dummy PCB pad only. |
| Pin 4 | GND | Analog ground reference; must be connected to clean system ground plane. |
| Pin 5 | TRIM | External fine-trim node - adjusts output ±300 mV via resistor divider for system-level calibration. |
| Pin 6 | VOUT | Regulated 5 V output - capable of sourcing/sinking 10 mA with <100 µV/mA load regulation. |
| Pin 7 | TP1 | Factory trim pad - no external connection permitted; dummy PCB pad only. |
| Pin 8 | NOISE REDUCTION | Filter node - connects to 1 µF capacitor to ground to reduce broadband noise by ~20%. |
Key Features
| Feature | Design Value |
|---|---|
| Laser-trimmed initial accuracy & tempco | Eliminates need for external trimming components while guaranteeing ±7.5 mV total error over −55°C to +125°C. |
| Buried Zener architecture | Delivers lower 1/f noise and superior long-term drift (15 ppm/1000 hr) vs. bandgap references in mission-critical systems. |
| Noise reduction pin (Pin 8) | Enables external 1 µF capacitor filtering to suppress high-frequency noise without degrading DC accuracy. |
| Output trim capability (Pin 5) | Supports system-level calibration to exact 5.000 V or nonstandard values (e.g., 5.12 V) with minimal impact on tempco. |
| MIL-STD-883 compliance | Validated for extended temperature cycling, mechanical shock, and hermeticity - suitable for aerospace and defense deployments. |
Applications
| High-Accuracy Data Acquisition | Aerospace ADC Reference |
|---|---|
Use Scenario: 14-bit successive approximation ADC in airborne inertial measurement unit requiring stable reference under thermal cycling. IC Role / Device Role / Timing Role: Primary 5 V reference for ADC voltage scaling; provides low-drift, low-noise excitation for sigma-delta modulator front-end. Use Value: 20 ppm/°C max drift ensures <1 LSB error over −55°C to +125°C; 4 µV p-p low-frequency noise prevents quantization uncertainty in slow-sampling modes. |
Use Scenario: Precision current source for flight control actuator position sensors operating in extended temperature environments. IC Role / Device Role / Timing Role: Voltage reference for op-amp-based current mirror; enables programmable 2–10 mA sensor excitation with ±0.01% stability. Use Value: 10 mA sink/source capability and 100 µV/mA load regulation maintain <0.02% current accuracy across full load range and temperature. |
| Stacked Multi-Voltage Reference | Military DAC Calibration |
Use Scenario: Triple-rail precision reference generator (5 V / 10 V / 15 V) in ground station telemetry transceiver with shared supply rejection. IC Role / Device Role / Timing Role: Cascaded AD586SQ units configured in series to generate multiple calibrated rails from single 22–46 V input. Use Value: Stacking improves line regulation - VIN changes from 18 V to 50 V induce output shifts below noise floor, eliminating need for post-regulation filtering. |
Use Scenario: Factory calibration fixture for 12-bit multiplying CMOS DACs used in missile guidance subsystems. IC Role / Device Role / Timing Role: Traceable 5.000 V reference for DAC full-scale adjustment; TRIM pin enables fine-tuning to NIST-traceable standards. Use Value: ±2.0 mV initial accuracy and 15 ppm/1000 hr long-term stability ensure calibration validity over 5-year shelf life and field deployment cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF5050QPWRQ1 | 5.000 V bandgap reference; 3 ppm/°C max drift (−40°C to +125°C); 10 µV p-p noise (0.1–10 Hz); SOIC-8 package. | Lower drift but higher noise; not MIL-qualified; unsuitable for hermetic or radiation-hardened systems. | Select REF5050QPWRQ1 only if automotive AEC-Q100 qualification and lower tempco outweigh need for buried Zener noise performance and MIL compliance. |
| MAX6126ASA50+T | 5.000 V buried Zener; 3 ppm/°C max drift (−40°C to +125°C); 1.6 µV p-p noise (0.1–10 Hz); SOIC-8 package; no noise reduction pin. | Superior low-frequency noise but lacks dedicated noise filter node and MIL-STD-883 variants. | Choose MAX6126ASA50+T when ultra-low 0.1–10 Hz noise is critical and military screening is not required. |
Compared with REF5050QPWRQ1 and MAX6126ASA50+T, the AD586SQ uniquely combines MIL-STD-883 qualification, CERDIP hermetic packaging, a dedicated noise reduction pin, and guaranteed ±7.5 mV total error over −55°C to +125°C - making it the only option qualified for flight-critical analog signal conditioning in defense platforms.
Availability
AD586SQ is available at Aetrix Electronics and suitable for high-reliability aerospace instrumentation, defense-grade data acquisition, and extended-temperature industrial control requiring stable component supply with traceable lot history and controlled obsolescence management.
Supply support for AD586SQ 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
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving precision instrumentation, communications, and industrial markets since 1965.
The AD586 product line was engineered specifically for military and aerospace applications demanding extreme temperature resilience, long-term stability, and hermetic reliability - with the AD586SQ variant optimized for −55°C to +125°C operation in CERDIP packaging.
FAQ
What is the guaranteed total output error of the AD586SQ over its full temperature range?
The AD586SQ guarantees a maximum total output error of ±7.5 mV across −55°C to +125°C, validated by testing at −55°C, +25°C, and +125°C per MIL-STD-883. This specification includes initial accuracy, temperature drift, and long-term stability contributions - confirmed in Table 2 of the AD586 Rev. G datasheet. The AD586SQ achieves this using laser-trimmed thin-film resistors and a proprietary buried Zener core, ensuring predictable performance in flight-critical systems where reference error directly impacts measurement fidelity.
Does the AD586SQ require external components to operate as a basic 5 V reference?
No, the AD586SQ functions as a complete 5 V reference with only VIN (Pin 2) and GND (Pin 4) connections - no external capacitors or resistors are needed for nominal operation. Its internal buffer amplifier and buried Zener provide stable 5.000 V output at up to 10 mA load. External components are optional: a 1 µF capacitor on Pin 8 reduces broadband noise, and a resistor network on Pin 5 enables fine-trim calibration. These enhancements do not affect baseline functionality, and the AD586SQ remains fully operational with just two pins connected.
Can the AD586SQ be used to generate a negative reference voltage?
Yes, the AD586SQ can configure a precision −5.000 V output by grounding VOUT (Pin 6), connecting VIN (Pin 2) to a +6 V to +30 V supply, and routing the GND pin (Pin 4) through a resistor to a −15 V rail - with the −5 V output taken from Pin 4. This reverse-connection mode maintains the same temperature coefficient (20 ppm/°C max) and long-term stability (15 ppm/1000 hr) as the standard configuration. The AD586SQ's ability to sink 10 mA ensures reliable operation in this topology, as confirmed in the "Negative Reference Voltage from an AD586" section of the Rev. G datasheet.
What is the purpose of the TRIM pin (Pin 5) on the AD586SQ?
The TRIM pin (Pin 5) on the AD586SQ provides external fine-adjustment capability, allowing system-level calibration to exactly 5.000 V or custom values like 5.12 V for binary applications. A resistor divider connected between VOUT and GND injects current into Pin 5, shifting the output by up to ±300 mV with minimal impact on temperature coefficient or noise. This feature eliminates the need for post-assembly trimming of onboard resistors and enables field recalibration against NIST-traceable standards - a capability explicitly documented in Figure 6 and the "Applying the AD586" section of the AD586 Rev. G datasheet.
Is the AD586SQ compatible with standard 8-lead SOIC footprints?
No, the AD586SQ uses an 8-lead CERDIP package (Q-8), not SOIC. Its outline dimensions (0.310" × 0.220") and lead pitch (0.100") differ from SOIC (R-8) and PDIP (N-8) variants. The Q-8 package features ceramic body, flat gull-wing leads, and hermetic sealing - essential for MIL-STD-883 compliance. Attempting to mount AD586SQ in an SOIC footprint will result in mechanical interference and solder joint failure. Always verify land pattern against JEDEC MS-001-BA for Q-8, as shown in Figure 27 of the AD586 Rev. G datasheet.
AD586SQ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- 8-CDIP (0.300", 7.62mm)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 10 mA
- Tolerance:
- ±0.2%
- Temperature Coefficient:
- 20ppm/°C
- Noise - 0.1Hz to 10Hz:
- 4µVp-p
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- 10.8V ~ 36V
- Current - Supply:
- 3mA
- Current - Cathode:
- -
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-CERDIP
AD586SQ FAQ
1.How can I place an order for AD586SQ through Aetrix?
Please submit a Request for Quotation (RFQ) for AD586SQ 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 AD586SQ reliable?
The price and inventory of AD586SQ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD586SQ is usually 5 days.
3.What payment methods are accepted for AD586SQ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD586SQ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD586SQ?
AD586SQ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD586SQ 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 AD586SQ?
For technical support, including AD586SQ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD586SQ requirements.
6.How does Aetrix verify that AD586SQ is sourced from the original manufacturer or authorized distributors?
All AD586SQ 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 AD586SQ meets industry standards.
7.What is the process for return or replacement of AD586SQ?
All AD586SQ units undergo pre-shipment inspection (PSI). If there is an issue with AD586SQ, 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 AD586SQ part is unused and in its original packaging.
Return procedure for AD586SQ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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