My Inquiry
My Account
Analog Devices Inc. AD588AQ
- Part No.:
- AD588AQ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- 16-CDIP (0.300", 7.62mm)
- Datasheet:
-
AD588AQ.pdf
- Description:
- IC VREF SERIES 0.03% 16CDIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,933
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AD588AQ from Analog Devices is a high-precision, dual-tracking voltage reference IC with 16-pin CERDIP packaging, specified for −25°C to +85°C operation. It delivers pin-programmable outputs including ±5 V tracking (≤1 mV symmetry error), +10 V (±3 mV initial error), and −10 V, with 1.5 ppm/°C typical drift and 6 µV p-p (0.1–10 Hz) output noise - enabling 12-bit absolute accuracy in precision data acquisition systems.
For engineers reviewing the AD588AQ datasheet, AD588AQ pinout, AD588AQ application, or AD588AQ equivalent, key selection considerations include its Kelvin force/sense architecture for load-independent accuracy, laser-trimmed thin-film resistor network for stability, MIL-STD-883-compliant CERDIP package for industrial reliability, and integrated ground-sense amplifier for system-level ground referencing.
Technical Context
The AD588AQ integrates a proprietary ion-implanted buried Zener diode reference cell with three laser-trimmed buffer amplifiers (A2, A3, A4) and precision thin-film resistors to achieve low-drift, multi-output voltage regulation. Its architecture supports independent Kelvin force/sense paths for both positive and negative outputs, plus a dedicated ground-sense amplifier (A2) that references system ground to internal nodes (VHIGH, VLOW, or VCT).
Pin-strappable configurations enable ±5 V tracking, +10 V, −10 V, +5 V, or −5 V outputs without external components. The GAIN ADJ (Pin 5) and BAL ADJ (Pin 12) terminals provide ±4 mV trim range with ~150 kΩ input impedance, allowing zero-error calibration of span magnitude and center-tap position while preserving temperature stability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage Error | ±3 mV max at +10 V/−10 V; enables direct use in 12-bit DAC/ADC systems without trimming. |
| ±5 V Tracking Symmetry Error | ±1.5 mV max; ensures matched positive/negative rail accuracy for bipolar signal conditioning. |
| Temp Drift (−25°C to +85°C) | ±3 ppm/°C max; guarantees <±0.33 mV total drift over full industrial range. |
| Output Noise (0.1–10 Hz) | 6 µV p-p typical; supports high-resolution measurements without external filtering. |
| Supply Current | 6–10 mA; compatible with standard ±15 V analog supply rails. |
| Long-Term Stability | 15 ppm/1000 hr; reduces need for periodic recalibration in embedded instrumentation. |
| Buffer Output Current | ±10 mA per amplifier (A3/A4); drives 1 kΩ loads directly with full accuracy. |
Pinout & Package
AD588AQ is housed in a hermetically sealed 16-lead CERDIP package (ceramic dual in-line package), rated for −25°C to +85°C operation and compliant with MIL-STD-883.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 15 | A3 OUT FORCE / A4 OUT FORCE | Kelvin force outputs for buffered +10 V or −10 V; connect to respective sense pins (3, 14) for remote load regulation. |
| 3, 14 | A3 OUT SENSE / A4 OUT SENSE | Kelvin sense inputs; return to load ground to eliminate wire-drop error in precision applications. |
| 5, 12 | GAIN ADJ / BAL ADJ | Laser-trimmed adjustment nodes for calibrating output span (±4 mV range) and center-tap symmetry. |
| 6, 8, 11 | VHIGH / VLOW / VCT | Unbuffered reference outputs: 10 V high, 0 V low, and 5 V center tap - used for configuration and calibration. |
| 7 | NOISE REDUCTION | Connects to external 1 µF capacitor to reduce broadband noise by >70% (to ~200 µV p-p, 1 MHz). |
| 9, 10 | GND SENSE +IN / −IN | Dedicated ground-sense amplifier inputs; referenced to system ground to stabilize VLOW/VCT against PCB ground shifts. |
| 2, 16 | +VS / −VS | Requires dual ±12 V to ±18 V supplies; enables full ±10 V output swing and internal amplifier biasing. |
Key Features
| Feature | Design Value |
|---|---|
| Pin-programmable output ranges | Configurable as ±5 V tracking, +10 V, −10 V, +5 V, or −5 V via simple external connections - no external op amps required. |
| Kelvin force/sense architecture | Separate force and sense paths for A3 and A4 buffers eliminate IR drop errors in long-line or high-current load interfaces. |
| Integrated ground-sense amplifier (A2) | References VLOW/VCT to system ground rather than internal die ground - critical for accurate ratiometric measurements. |
| Laser-trimmed thin-film resistors | Ensures <±1.5 ppm/°C drift and <±3 mV initial error without user calibration - meets 12-bit system accuracy out-of-box. |
| Noise reduction pin (Pin 7) | Supports external 1 µF capacitor to cut 1 MHz noise from 600 µV p-p to 200 µV p-p - preserves SNR in sensitive ADC front-ends. |
Applications
| High-Accuracy Data Acquisition | Bipolar Signal Conditioning |
|---|---|
|
Use Scenario: 16-bit SAR ADC system requiring stable ±5 V reference for differential input scaling and offset nulling. IC Role / Device Role / Timing Role: Dual-tracking reference providing matched +5 V and −5 V rails with ≤1 mV symmetry error and Kelvin sensing to maintain accuracy across PCB layout variations. Use Value: Eliminates manual potentiometer trimming and enables auto-calibration firmware routines by guaranteeing <±3 mV total error over −25°C to +85°C. |
Use Scenario: Precision instrumentation amplifier stage driving ±10 V analog outputs into 600 Ω loads. IC Role / Device Role / Timing Role: High-current buffer reference delivering ±10 V with ±10 mA drive capability and force/sense feedback to sustain accuracy under load transients. Use Value: Maintains <±0.01% linearity error across full temperature range due to 1.5 ppm/°C drift and laser-trimmed resistor network. |
| Embedded System Calibration | Bridge Sensor Excitation |
|
Use Scenario: Industrial PLC module performing on-board self-test using known reference voltages for ADC/DAC verification. IC Role / Device Role / Timing Role: System-level reference supplying programmable +10 V, −10 V, and ±5 V outputs for multi-rail test signal generation and error mapping. Use Value: Enables deterministic 12-bit calibration without external standards - long-term stability of 15 ppm/1000 hr reduces maintenance intervals. |
Use Scenario: Strain gauge Wheatstone bridge excited by precise +5 V reference with matched current sourcing/sinking. IC Role / Device Role / Timing Role: Low-noise (6 µV p-p), low-drift reference feeding bridge top rail while A4 buffer sinks bottom-rail current with Kelvin sensing. Use Value: Reduces bridge measurement uncertainty to <0.005% FS by eliminating reference-induced gain and offset drift in microvolt-level outputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF5025AID | Single 2.5 V output; 3 ppm/°C max drift; SOIC-8 package; no Kelvin sensing or tracking mode. | Lower-cost solution for unipolar 2.5 V systems; lacks dual-rail or programmable configuration flexibility. | Choose REF5025AID only when fixed 2.5 V output suffices and board space is constrained. |
| ADR4550BRZ | Single 5.0 V output; 3 ppm/°C max drift; SOIC-8; 115 dB PSRR; no programmable outputs or ground-sense amplifier. | Higher PSRR suits noisy supply environments; but cannot generate ±5 V tracking or support Kelvin load regulation. | Select ADR4550BRZ if system requires superior power supply rejection and only needs one stable 5 V rail. |
Compared with REF5025AID and ADR4550BRZ, the AD588AQ uniquely provides pin-configurable dual-rail outputs, integrated ground-sense functionality, and Kelvin force/sense architecture - making it irreplaceable in bipolar, high-accuracy, or system-ground-referenced applications where output flexibility and load-invariant accuracy are mandatory.
Availability
AD588AQ is available at Aetrix Electronics and suitable for high-accuracy data acquisition, bipolar signal conditioning, and embedded system calibration requiring stable component supply across extended industrial temperature ranges.
Supply support for AD588AQ 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 aerospace markets since 1965.
The AD588 product line was engineered specifically for high-stability, multi-output voltage reference needs in automated test equipment, precision data converters, and calibration-critical embedded systems - prioritizing low drift, programmable topology, and system-level ground integrity.
FAQ
What is the operating temperature range for the AD588AQ?
The AD588AQ is specified for −25°C to +85°C operation, as confirmed in the Rev. M datasheet's Ordering Guide and Specifications tables. This industrial-grade range distinguishes it from the JQ/KQ grades (0°C to +70°C) and military-grade TE/TQ variants. All guaranteed parameters - including ±3 ppm/°C max drift and ±3 mV output error - apply across this full range.
Does the AD588AQ support true Kelvin connections for both positive and negative outputs?
Yes, the AD588AQ provides dedicated Kelvin force/sense pairs: Pins 1/3 for A3 (typically +10 V or +5 V) and Pins 15/14 for A4 (typically −10 V or −5 V). Each pair allows remote sensing at the load to eliminate voltage drop errors in PCB traces or cables - a core design feature validated in the Functional Block Diagram and Pin Configuration sections of the datasheet.
Can the AD588AQ generate ±5 V tracking output without external components?
Yes, the AD588AQ supports ±5 V tracking mode natively using internal resistive dividers and the VCT (Pin 11) node. As shown in Figure 5 and Table 5 of the datasheet, connecting Pin 10 to Pin 11 and configuring A3/A4 appropriately yields matched +5 V and −5 V outputs with ≤1.5 mV symmetry error - no external resistors, op amps, or trimming required.
What is the purpose of the NOISE REDUCTION pin (Pin 7) on the AD588AQ?
Pin 7 (NOISE REDUCTION) accepts an external capacitor (typically 1 µF) to form a low-pass filter with the internal 4 kΩ resistor, reducing broadband noise from 600 µV p-p (1 MHz) to ~200 µV p-p. This feature is documented in the Noise Performance section and Figure 8, and is especially valuable in high-resolution ADC front-ends where SNR preservation is critical.
How does the ground-sense amplifier (A2) in the AD588AQ improve system accuracy?
The ground-sense amplifier (A2) uses Pins 9 (+IN) and 10 (−IN) to reference the AD588AQ's internal VLOW and VCT nodes to the system's actual ground potential - not the IC's internal substrate ground. This eliminates errors caused by PCB ground plane IR drops, ensuring that the ±5 V tracking output remains truly symmetrical relative to the host system's ground, as detailed in the Theory of Operation section.
AD588AQ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- 16-CDIP (0.300", 7.62mm)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Discontinued at Digi-Key
- Reference Type:
- Series
- Output Type:
- Programmable
- Voltage - Output (Min/Fixed):
- ±5V, ±10V
- Voltage - Output (Max):
- -
- Current - Output:
- 10 mA
- Tolerance:
- ±0.03%
- Temperature Coefficient:
- 3ppm/°C
- Noise - 0.1Hz to 10Hz:
- 6µVp-p
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- 10.8V ~ 36V
- Current - Supply:
- 10mA
- Current - Cathode:
- -
- Operating Temperature:
- -25°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 16-CERDIP
AD588AQ FAQ
1.How can I place an order for AD588AQ through Aetrix?
Please submit a Request for Quotation (RFQ) for AD588AQ 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 AD588AQ reliable?
The price and inventory of AD588AQ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD588AQ is usually 5 days.
3.What payment methods are accepted for AD588AQ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD588AQ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD588AQ?
AD588AQ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD588AQ 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 AD588AQ?
For technical support, including AD588AQ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD588AQ requirements.
6.How does Aetrix verify that AD588AQ is sourced from the original manufacturer or authorized distributors?
All AD588AQ 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 AD588AQ meets industry standards.
7.What is the process for return or replacement of AD588AQ?
All AD588AQ units undergo pre-shipment inspection (PSI). If there is an issue with AD588AQ, 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 AD588AQ part is unused and in its original packaging.
Return procedure for AD588AQ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AD588AQ Tags
-
TL431AIDBZR
Texas Instruments
-
TL431BQDBZR
Texas Instruments
-
AN431AN-ATRG1
Diodes Incorporated
-
LM4040CYM3-2.5-TR
Microchip Technology
-
LM4040CYM3-4.1-TR
Microchip Technology
-
LM4040EIM3-2.5/NOPB
Texas Instruments
-
AZ431LBNTR-G1
Diodes Incorporated
-
LM4040D20IDBZR
Texas Instruments
-
LM4041DIM3-ADJ/NOPB
Texas Instruments
-
LM4040DIM3X-2.5/NOPB
Texas Instruments
-
LM4040DIM3-2.5/NOPB
Texas Instruments
-
AZ431LANTR-G1
Diodes Incorporated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
