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Analog Devices Inc. AD586LR
- Part No.:
- AD586LR
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AD586LR.pdf
- Description:
- IC VREF SERIES 0.05% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,030
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Product details
Overview
AD586LR from Analog Devices is a precision 5.000 V ±2.5 mV buried Zener voltage reference IC in an 8-lead SOIC package, featuring 5 ppm/°C max temperature coefficient over 0°C to 70°C, 100 nV/√Hz spectral noise density, and output capability of sourcing or sinking 10 mA. It serves as a high-stability external reference for 12–16-bit DACs and ADCs in test equipment and data acquisition systems.
For engineers reviewing the AD586LR datasheet, AD586LR pinout, AD586LR application, or AD586LR equivalent, this page delivers verified specifications, SOIC-8 terminal mapping, real-world converter interface use cases, and two validated alternative references with documented performance trade-offs.
Technical Context
The AD586LR uses a proprietary ion-implanted buried Zener diode combined with laser-trimmed thin-film resistors to achieve low drift and low noise-superior to band gap references. Its internal buffer amplifier enables ±10 mA load drive while maintaining <100 µV/mA load regulation.
It integrates a dedicated noise reduction pin (Pin 8) that forms a low-pass filter with an external 1 µF capacitor, reducing broadband noise from ~200 µV p-p to ~160 µV p-p. The TRIM pin (Pin 5) supports optional fine adjustment of output voltage by up to ±300 mV without degrading long-term stability or temperature coefficient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.000 V ±2.5 mV at 25°C - ensures initial accuracy suitable for 14-bit converter full-scale calibration. |
| Tempco | 5 ppm/°C max (0°C to 70°C) - guarantees ≤0.35 mV total drift across industrial ambient range. |
| Noise Density | 100 nV/√Hz at 100 Hz - enables low-noise signal chains in precision digitizers without added filtering. |
| Load Drive | ±10 mA sourcing/sinking - supports direct driving of multiple converter reference inputs or op-amp bias networks. |
| Long-Term Stability | 15 ppm/1000 hr - critical for metrology-grade instruments requiring recalibration intervals >1 year. |
| Line Regulation | ±100 µV/V (10.8–36 V input) - maintains output accuracy despite supply rail variation in unregulated systems. |
| Turn-On Time | 60 µs to 0.01% (no CN); 400 ms with 1 µF noise cap - informs power sequencing design in fast-booting systems. |
Pinout & Package
AD586LR is supplied in an 8-lead SOIC package (R-8), compliant with JEDEC MS-012AA, measuring 5.00 mm × 4.00 mm × 1.25 mm with 1.27 mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Factory Trim Pad (TP1) | No connection required; internal test point only - must remain floating or grounded via dummy pad. |
| 2 | VIN | Positive supply input (10.8–36 V); powers internal Zener and buffer - requires local 0.1 µF decoupling. |
| 3 | Factory Trim Pad (TP1) | No connection required; internal test point only - must remain floating or grounded via dummy pad. |
| 4 | GND | Analog ground reference for Zener and amplifier - must connect to clean system AGND plane. |
| 5 | TRIM | Optional fine-adjust node; ±300 mV offset possible with external resistor divider - enables binary-scaled references (e.g., 5.12 V). |
| 6 | VOUT | Regulated 5.000 V output; capable of sourcing/sinking 10 mA - connects directly to converter REF pins. |
| 7 | Factory Trim Pad (TP1) | No connection required; internal test point only - must remain floating or grounded via dummy pad. |
| 8 | NOISE REDUCTION | Filter node for external 1 µF capacitor to GND - reduces high-frequency noise by ~20% without affecting DC accuracy. |
Key Features
| Feature | Design Value |
|---|---|
| Laser-trimmed buried Zener | Enables 5 ppm/°C tempco and 15 ppm/1000 hr stability - eliminates need for external compensation networks. |
| Dedicated noise reduction pin | Supports 1 µF capacitor to cut broadband noise by ~20% - preserves DC accuracy while improving SNR in sensitive ADC front-ends. |
| Output trim capability | Adjusts VOUT by ±300 mV via Pin 5 - allows precise matching to system-level calibration standards or non-5 V binary scaling. |
| ±10 mA load drive | Sources/sinks full current without external buffers - simplifies BOM for multi-DAC reference distribution. |
| Industry-standard SOIC-8 pinout | Direct drop-in replacement for legacy 5 V references (e.g., LM399, LT1021) - no PCB redesign needed for upgrade paths. |
Applications
| High-Accuracy Data Acquisition | Automated Test Equipment (ATE) |
|---|---|
Use Scenario: 16-bit simultaneous-sampling ADC module in environmental monitoring logger requiring <1 LSB error over 0–70°C. IC Role / Device Role / Timing Role: Primary voltage reference for ADC analog front-end, establishing full-scale range and gain calibration baseline. Use Value: 5 ppm/°C tempco and 15 ppm/1000 hr stability ensure measurement repeatability without field recalibration for 2+ years. |
Use Scenario: Multi-channel precision source-measure unit (SMU) generating calibrated 5 V reference for DUT bias and feedback sensing. IC Role / Device Role / Timing Role: Stable excitation source for Kelvin-connected resistance measurements and ratiometric sensor excitation. Use Value: ±2.5 mV initial error and ±100 µV/V line regulation enable sub-0.01% absolute accuracy across variable supply conditions. |
| Medical Imaging Signal Chain | Industrial PLC Analog I/O Module |
Use Scenario: CT scanner photodiode readout ASIC requiring ultra-low-noise 5 V reference for correlated double sampling. IC Role / Device Role / Timing Role: Low-noise reference for PGA and sigma-delta ADC reference input, minimizing quantization noise floor. Use Value: 100 nV/√Hz noise density and 4 µV p-p (0.1–10 Hz) reduce effective number of bits (ENOB) degradation by ≥0.8 bits. |
Use Scenario: Modular PLC analog input card supporting 12-bit isolated current/voltage inputs with cold-junction compensation. IC Role / Device Role / Timing Role: Master reference for multiplexed SAR ADC and thermocouple linearization circuitry. Use Value: SOIC-8 package and 0°C to 70°C grade match industrial enclosure thermal profiles while enabling compact 25 mm² layout area. |
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 ppm/°C max, 3.8 µV p-p (0.1–10 Hz), SOIC-8, but requires 3.3 V–18 V supply and has 3.5 mA quiescent current. | Better low-frequency noise, but higher IQ limits battery-powered use; no noise reduction pin. | Select REF5050AIDR when ultra-low 0.1–10 Hz noise dominates system error budget and supply headroom permits. |
| ADR445ARMZ | 3 ppm/°C max, 1.8 µV p-p (0.1–10 Hz), SOIC-8, but rated only to 125°C junction and lacks TRIM pin. | Superior tempco and noise, but no output adjust capability; not qualified for extended temperature operation beyond +125°C. | Select ADR445ARMZ where maximum temperature stability is critical and fine-trim functionality is unnecessary. |
Compared with REF5050AIDR and ADR445ARMZ, AD586LR provides unique value through its integrated noise reduction pin and ±300 mV trim range-enabling both noise-sensitive and calibration-flexible designs without external components, while maintaining proven reliability in long-lifecycle industrial deployments.
Availability
AD586LR is available at Aetrix Electronics and suitable for high-accuracy data acquisition, automated test equipment, medical imaging signal chains, and industrial PLC analog I/O modules requiring stable component supply across multi-year production cycles.
Supply support for AD586LR 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, industrial automation, and communications markets since 1965.
The AD586 product line delivers monolithic buried Zener voltage references optimized for metrology-grade accuracy, low drift, and low noise in 8-pin packages-designed specifically for high-resolution converter interfaces and calibration-critical systems.
FAQ
What is the guaranteed initial accuracy of the AD586LR at 25°C?
The AD586LR is laser trimmed to guarantee an output voltage of 5.000 V ±2.5 mV at 25°C, corresponding to ±50 ppm accuracy. This specification is fully tested and guaranteed across all production units, making it suitable for 14-bit system calibration without post-manufacturing trimming.
Can the AD586LR drive multiple ADC reference inputs simultaneously?
Yes, the AD586LR can source or sink up to ±10 mA, enabling direct connection to multiple converter reference pins-such as dual 12-bit SAR ADCs or a 16-bit sigma-delta ADC with auxiliary analog blocks-without external buffering, provided total load current remains within ±10 mA and layout minimizes shared impedance.
How does the noise reduction pin (Pin 8) function on the AD586LR?
The AD586LR noise reduction pin (Pin 8) connects internally to the Zener cell's bias network. Adding a 1 µF capacitor from Pin 8 to GND forms a low-pass filter that reduces broadband noise (e.g., 1 MHz bandwidth) from ~200 µV p-p to ~160 µV p-p, with no impact on DC accuracy or temperature coefficient.
Is the AD586LR compatible with negative reference configurations?
Yes, the AD586LR can generate a precision −5.000 V output by grounding VOUT (Pin 6), connecting VIN (Pin 2) to +6 V to +30 V, and routing GND (Pin 4) through a current-setting resistor to a negative supply (e.g., −15 V). Net current through the device must be maintained between 2.5 mA and 10 mA for specified performance.
What is the maximum operating supply voltage for the AD586LR?
The AD586LR supports an absolute maximum input voltage of 36 V on VIN (Pin 2), with recommended operation between 10.8 V and 36 V. Operation below 10.8 V may cause output dropout; above 36 V risks permanent damage per Absolute Maximum Ratings in the AD586 Rev. G datasheet.
AD586LR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 10 mA
- Tolerance:
- ±0.05%
- Temperature Coefficient:
- 5ppm/°C
- Noise - 0.1Hz to 10Hz:
- 4µVp-p
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- 10.8V ~ 36V
- Current - Supply:
- 3mA
- Current - Cathode:
- -
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AD586LR FAQ
1.How can I place an order for AD586LR through Aetrix?
Please submit a Request for Quotation (RFQ) for AD586LR 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 AD586LR reliable?
The price and inventory of AD586LR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD586LR is usually 5 days.
3.What payment methods are accepted for AD586LR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD586LR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD586LR?
AD586LR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD586LR 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 AD586LR?
For technical support, including AD586LR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD586LR requirements.
6.How does Aetrix verify that AD586LR is sourced from the original manufacturer or authorized distributors?
All AD586LR 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 AD586LR meets industry standards.
7.What is the process for return or replacement of AD586LR?
All AD586LR units undergo pre-shipment inspection (PSI). If there is an issue with AD586LR, 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 AD586LR part is unused and in its original packaging.
Return procedure for AD586LR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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