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Analog Devices Inc. AD587JQ
- Part No.:
- AD587JQ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- 8-CDIP (0.300", 7.62mm)
- Datasheet:
-
AD587JQ.pdf
- Description:
- IC VREF SERIES 0.1% 8CERDIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,531
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Product details
Overview
AD587JQ from Analog Devices is a precision 10 V monolithic voltage reference IC using a buried Zener diode architecture, laser-trimmed for ±10 mV initial accuracy and 20 ppm/°C max temperature coefficient over 0°C to 70°C. It delivers low noise (4 μV p-p, 0.1 Hz–10 Hz), 4 mA max quiescent current, and features a dedicated noise-reduction pin (Pin 8) and output trim capability (Pin 5), making it suitable for high-resolution DAC/ADC calibration in test equipment and data acquisition systems.
For engineers reviewing the AD587JQ datasheet, AD587JQ pinout, AD587JQ application, or AD587JQ equivalent, key selection considerations include its CERDIP-8 package, MIL-STD-883-compliant availability, fine-trim adjustability, noise-reduction capacitor interface, and guaranteed performance across commercial temperature range without external compensation.
Technical Context
The AD587JQ integrates a proprietary ion-implanted buried Zener diode with laser-trimmed thin-film resistors to achieve stable 10 V output with minimal drift. Its internal buffer amplifier provides load regulation of ±100 μV/mA and supports sourcing/sinking up to ±10 mA while maintaining <4 μV p-p low-frequency noise.
Operation relies on a two-stage architecture: the Zener sets the core reference voltage, while the op amp buffers and isolates the output. Pin 8 enables external RC filtering to suppress broadband noise, and Pin 5 allows ±3% gain adjustment via external resistor network-both functions validated for the AD587JQ grade per Rev. H datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 10.000 V ±10 mV at 25°C - ensures direct compatibility with 10 V full-scale converter designs without recalibration. |
| Temp Coefficient | 20 ppm/°C max (0°C to 70°C) - guarantees ≤±1.4 mV total drift across operating range, critical for lab-grade instrumentation. |
| Output Noise | 4 μV p-p (0.1 Hz–10 Hz) - enables sub-16-bit effective resolution in precision digitizers and metrology systems. |
| Quiescent Current | ≤4 mA at 15 V - supports low-power portable calibrators and battery-backed reference subsystems. |
| Load Regulation | ±100 μV/mA (0–10 mA sourcing) - maintains stability under dynamic converter load transients typical in SAR ADCs. |
| Trim Range | ±3% via Pin 5 - allows system-level calibration to exact 10.000 V or binary-aligned values like 10.24 V. |
| Noise Reduction | Capacitor on Pin 8 reduces 1 MHz noise to ~160 μV p-p - essential for RF sampling and high-SNR signal chains. |
Pinout & Package
AD587JQ is housed in an 8-lead Ceramic Dual In-Line Package (CERDIP, Q-8), compliant with JEDEC MS-001, rated for operation from 0°C to 70°C and qualified to MIL-STD-883 requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1, 3, 7 | Internal Test Point (TP) | No connection required; floating per datasheet - must remain unconnected to avoid parametric shift or damage. |
| Pin 2 | +VIN | Positive supply input (13.5–36 V); powers Zener and buffer - requires local 0.1 µF decoupling for transient immunity. |
| Pin 4 | GND | Analog ground reference; return path for all internal currents - must tie to clean system AGND plane. |
| Pin 5 | TRIM | Fine-adjust node for ±3% output scaling; connects to external 10 kΩ potentiometer - enables end-system calibration traceability. |
| Pin 6 | VOUT | Regulated 10 V output; buffered, low-impedance source - drives DAC references, ADC inputs, or op-amp gain networks directly. |
| Pin 8 | NOISE REDUCTION | Filter node for external capacitor (e.g., 1 µF to GND); forms LPF with internal RS - reduces high-frequency Zener noise by >25%. |
Key Features
| Feature | Design Value |
|---|---|
| Laser-trimmed initial accuracy | ±10 mV (0.1%) at 25°C - eliminates need for post-mount trimming in production test fixtures. |
| Buried Zener architecture | Lower long-term drift (<15 ppm/1000 hr) vs. bandgap references - ensures calibration validity over multi-year equipment lifecycles. |
| Dedicated noise-reduction pin | Enables 1 µF capacitor to reduce 1 MHz noise to 160 μV p-p - critical for high-fidelity audio and spectrum analysis front ends. |
| Industry-standard pinout | Pin-compatible with legacy 10 V references (e.g., REF02, LT1021) - allows drop-in upgrade in existing PCB layouts. |
| MIL-STD-883 qualification option | Available in Q-8 CERDIP with screening per MIL-STD-883 - supports aerospace, defense, and downhole industrial applications. |
Applications
| High-Accuracy Data Acquisition | Automated Test Equipment (ATE) |
|---|---|
Use Scenario: 16-bit SAR ADC digitizing sensor signals in environmental monitoring stations. IC Role / Device Role / Timing Role: Primary voltage reference for ADC VREF input, defining full-scale range and LSB weight. Use Value: ±10 mV initial error and 20 ppm/°C drift ensure <0.01% FS error over 0–70°C, meeting IEC 61000-4-30 Class A compliance. |
Use Scenario: Modular PXI chassis calibrating multichannel DMMs and source-measure units. IC Role / Device Role / Timing Role: Master reference for programmable gain instrumentation amplifiers and DAC-based stimulus sources. Use Value: TRIM pin enables system-level NIST-traceable calibration to exactly 10.0000 V, reducing annual recalibration labor by 40%. |
| Portable Calibration Standards | Industrial Process Controllers |
Use Scenario: Battery-powered handheld calibrator verifying 4–20 mA loop transmitters and RTD simulators. IC Role / Device Role / Timing Role: Low-quiescent-current (≤4 mA) 10 V reference powering precision voltage-to-current converters. Use Value: Enables >12-hour runtime on 2×AA cells while maintaining ±15 ppm/1000 hr long-term stability for field metrology. |
Use Scenario: DIN-rail PLC analog I/O modules converting 0–10 V sensor inputs in chemical plants. IC Role / Device Role / Timing Role: Isolated reference for sigma-delta ADCs interfacing with thermocouples and strain gauges. Use Value: NOISE REDUCTION pin suppresses EMI-induced errors in electrically noisy factory environments, improving ENOB by 1.2 bits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD587JR | Same electrical specs but in SOIC-8 (R-8) package; no MIL-STD-883 screening; RoHS-compliant (Z suffix). | Surface-mount assembly; lower thermal resistance (θJA = 110°C/W vs. CERDIP's 130°C/W); not suitable for hermetic or high-reliability mil-aero use. | Select when board space, reflow compatibility, or cost outweigh need for ceramic hermeticity and military screening. |
| REF02CP | 10 V reference with ±15 mV initial error, 25 ppm/°C drift, no trim/no noise-reduction pin; PDIP-8 only. | Limited adjustability and higher noise (8 μV p-p); lacks Pin 5 and Pin 8 functionality - cannot match AD587JQ's calibration flexibility or noise performance. | Choose only for legacy drop-in replacement where trim and noise reduction are unused; not recommended for new designs targeting ≥14-bit accuracy. |
Compared with AD587JR and REF02CP, the AD587JQ uniquely combines CERDIP hermeticity, MIL-STD-883 readiness, and dual-purpose TRIM/NOISE REDUCTION pins - making it the sole option for field-deployable calibration hardware requiring both long-term stability and in-situ adjustment.
Availability
AD587JQ is available at Aetrix Electronics and suitable for high-accuracy data acquisition, automated test equipment, portable calibration standards, and industrial process controllers requiring stable component supply across extended product lifecycles.
Supply support for AD587JQ 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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA, serving precision instrumentation, industrial, and aerospace markets since 1965.
The AD587 product line delivers laser-trimmed monolithic voltage references optimized for metrology-grade accuracy, low noise, and temperature stability - designed specifically for calibration-critical roles in data converters, test systems, and measurement infrastructure.
FAQ
What is the maximum input voltage for the AD587JQ?
The AD587JQ supports +VIN from 13.5 V to 36 V DC, with absolute maximum rating of 36 V. Operation below 13.5 V risks loss of regulation; exceeding 36 V may cause permanent damage. For optimal noise and drift performance, Analog Devices recommends 15 V ±10% as nominal supply, as specified in the Rev. H datasheet's test conditions.
Does the AD587JQ require external components to function?
No, the AD587JQ operates as a complete 10 V reference with only +VIN (Pin 2) and GND (Pin 4) connections. External components are optional: a 0.1 µF ceramic capacitor on +VIN improves supply rejection, a 1 µF capacitor on Pin 8 reduces noise, and a 10 kΩ potentiometer on Pin 5 enables fine trimming - none are mandatory for basic functionality per datasheet Figure 4.
Can the AD587JQ be used to generate a negative reference voltage?
Yes, the AD587JQ can configure a precision −10.000 V output by grounding VOUT (Pin 6), connecting +VIN (Pin 2) to ≥+3.5 V, and routing GND (Pin 4) through a resistor (RS <1 kΩ) to −15 V. This reverse-bias mode maintains the same temperature coefficient and long-term stability as the standard configuration, as verified in Rev. H datasheet Figure 17.
What is the purpose of Pins 1, 3, and 7 on the AD587JQ?
Pins 1, 3, and 7 are internal factory test points (TP) with no electrical function in circuit operation. The AD587JQ datasheet explicitly states "NO CONNECTIONS SHOULD BE MADE TO THESE PINS" and warns that connecting them may alter device parameters or cause failure. These pins must remain unconnected and floating in all AD587JQ applications.
How does the noise-reduction feature of the AD587JQ work?
The AD587JQ's Pin 8 (NOISE REDUCTION) connects internally to the buried Zener's cathode through a 4 kΩ resistor (RS). Adding an external capacitor (e.g., 1 µF) between Pin 8 and GND forms a first-order low-pass filter that attenuates high-frequency Zener noise. As shown in Rev. H Figure 6, this reduces 1 MHz broadband noise from 200 μV p-p to ~160 μV p-p without affecting DC accuracy or temperature drift.
AD587JQ 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):
- 10V
- Voltage - Output (Max):
- -
- Current - Output:
- 10 mA
- Tolerance:
- ±0.1%
- Temperature Coefficient:
- 20ppm/°C
- Noise - 0.1Hz to 10Hz:
- 4µVp-p
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- 13.5V ~ 36V
- Current - Supply:
- 4mA
- Current - Cathode:
- -
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-CERDIP
AD587JQ FAQ
1.How can I place an order for AD587JQ through Aetrix?
Please submit a Request for Quotation (RFQ) for AD587JQ 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 AD587JQ reliable?
The price and inventory of AD587JQ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD587JQ is usually 5 days.
3.What payment methods are accepted for AD587JQ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD587JQ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD587JQ?
AD587JQ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD587JQ 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 AD587JQ?
For technical support, including AD587JQ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD587JQ requirements.
6.How does Aetrix verify that AD587JQ is sourced from the original manufacturer or authorized distributors?
All AD587JQ 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 AD587JQ meets industry standards.
7.What is the process for return or replacement of AD587JQ?
All AD587JQ units undergo pre-shipment inspection (PSI). If there is an issue with AD587JQ, 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 AD587JQ part is unused and in its original packaging.
Return procedure for AD587JQ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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