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Analog Devices Inc. AD669BNZ
- Part No.:
- AD669BNZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital to Analog Converters (DAC)
- Package:
- 28-DIP (0.600", 15.24mm)
- Datasheet:
-
AD669BNZ.pdf
- Description:
- IC DAC 16BIT V-OUT 28DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,610
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Product details
Overview
AD669BNZ from Analog Devices is a monolithic 16-bit voltage-output DACPORT® with integrated buried Zener reference, output amplifier, and double-buffered parallel latches. It delivers ±2 LSB integral nonlinearity, 0.009% THD+N, and 10 µs full-scale settling time. Used in precision instrumentation and automated test equipment for generating calibrated analog control signals.
For engineers reviewing the AD669BNZ datasheet, AD669BNZ pinout, AD669BNZ application, or AD669BNZ equivalent, this page provides verified technical context, real-world design meaning of key specs, package-validated pin functions, and two confirmed alternative parts for industrial-grade 16-bit DAC selection.
Technical Context
The AD669BNZ employs a segmented 4-bit thermometer + 12-bit R-2R architecture with bipolar current sources and MOS steering switches, enabling 15-bit monotonicity over –40°C to +85°C. Its on-chip 10 V buried Zener reference is laser-trimmed to ±0.2% and supplies internal DAC scaling and external circuitry up to 4 mA.
Digital interface uses three TTL/CMOS-compatible control lines-CS (active-low), L1 (active-low), and LDAC (active-high)-to manage independent first-rank and second-rank latches. This double-buffered structure eliminates data skew and supports synchronized updates across multi-DAC systems without external logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - delivers 15 ppm full-scale resolution (153 µV at 10 V span) |
| Integral Nonlinearity | ±2 LSB max - ensures ≤0.003% FSR absolute accuracy after calibration |
| THD+N | 0.009% max at 0 dB, 1001 Hz - supports high-fidelity signal generation |
| Settling Time | 10 µs typ to ±1/2 LSB - enables ≥100 kSPS closed-loop control loop updates |
| Reference Output | 10.000 V ±0.2% - stable, low-drift source for system-wide voltage referencing |
| Glitch Impulse | 15 nV·s typ - minimizes transient injection during code transitions near midscale |
| Power Supply Range | ±13.5 V to ±16.5 V - compatible with standard ±15 V industrial rails |
Pinout & Package
The AD669BNZ is housed in a 28-pin plastic DIP (N-28) package with 0.6-inch width and through-hole mounting. Pin 1 is located at the top-left corner when viewed from the top with the notch or dot oriented left.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DB0–DB15 | Digital input data bus (LSB to MSB) | Parallel 16-bit binary word; positive-true logic; interfaces directly to 16-bit microprocessor buses |
| CS, L1 | First-rank latch enable (both active-low) | Level-triggered control: data latched when both are low; enables independent loading per DAC in multi-channel systems |
| LDAC | Second-rank latch enable (active-high) | Level-triggered update: drives DAC output only when high; allows simultaneous update of multiple AD669BNZ devices |
| VOUT | Analog voltage output | Programmable unipolar (0 V to +10 V) or bipolar (–10 V to +10 V); buffered, capable of driving 2 kΩ || 1000 pF |
| REF OUT / REF IN | Internal reference output / input | 10.000 V ±0.2% source; can drive external circuits up to 4 mA; used internally for gain/offset trimming |
| SPAN/BIP OFF | Bipolar offset configuration node | Connects to VOUT (unipolar) or REF IN (bipolar); selects output range without external components |
| AGND / DGND | Analog / digital ground | Separate ground pins minimize digital noise coupling into analog output path |
| +VCC / –VEE / +VLL | Analog positive / negative / logic supply | +VCC/–VEE = ±13.5 V to ±16.5 V; +VLL = +4.5 V to +5.5 V; decoupling required per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| On-chip 10 V buried Zener reference | Laser-trimmed to ±0.2% initial error and 15 ppm/°C drift - eliminates need for external precision reference in most applications |
| Double-buffered 16-bit latches | Enables glitch-free, skew-free operation in multi-DAC synchronization - critical for phase-coherent waveform generation |
| Pin-programmable output range | Unipolar 0 V to +10 V or bipolar –10 V to +10 V selected via SPAN/BIP OFF connection - no resistors or jumpers required |
| Low-glitch architecture | 15 nV·s typical glitch impulse at major carry transition - preserves signal integrity in closed-loop servo and calibration systems |
| MIL-STD-883 compliant versions available | Extended reliability screening and hermetic packaging options (e.g., AD669SQ) - suitable for aerospace and defense deployments |
Applications
| Industrial Process Control | Automated Test Equipment (ATE) |
|---|---|
Use Scenario: Generating precise analog setpoints for PID controllers regulating temperature, pressure, or flow in PLC-based systems. IC Role / Device Role / Timing Role: Voltage-output DAC providing calibrated DC control signals with long-term stability and low drift. Use Value: ±2 LSB INL and 15 ppm/°C gain drift ensure <±0.01% full-scale error over –40°C to +85°C ambient, reducing recalibration frequency. | Use Scenario: Stimulus generation for functional testing of ADCs, filters, and sensor signal chains in production test fixtures. IC Role / Device Role / Timing Role: High-fidelity waveform synthesizer delivering low-distortion (0.009% THD+N), fast-settling (10 µs) analog stimuli. Use Value: 83 dB SNR and 15 nV·s glitch impulse enable accurate characterization of device dynamic performance without stimulus-induced artifacts. |
| Medical Instrumentation | Calibration & Metrology Standards |
Use Scenario: Driving precision current sources or piezoelectric actuators in diagnostic imaging subsystems requiring sub-mV output resolution. IC Role / Device Role / Timing Role: High-resolution analog output stage converting digital calibration coefficients into stable excitation voltages. Use Value: 16-bit resolution (153 µV step at 10 V) and monotonicity over temperature guarantee repeatable, traceable stimulus levels across operating conditions. | Use Scenario: Serving as a programmable voltage standard in metrology labs for calibrating multimeters, data loggers, and reference monitors. IC Role / Device Role / Timing Role: Primary DC voltage source referenced to internal 10.000 V Zener, with external buffering for metrological traceability. Use Value: ±0.2% reference accuracy and low 125 nV/√Hz reference noise support uncertainty budgets under 100 ppm in primary calibration workflows. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit DAC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD768ARZ | 16-bit, ±1 LSB INL, SOIC-28, requires external reference; no on-chip amplifier | Lower power (25 mW vs. 625 mW), but needs external op amp and reference for voltage output | Select when board space and power are constrained and external precision reference is already present |
| MAX5316BCP+ | 16-bit, ±2 LSB INL, TSSOP-20, internal reference (2.048 V), rail-to-rail output | Single-supply (+2.7 V to +5.5 V), lower voltage range; not suited for ±10 V bipolar operation | Select for battery-powered or low-voltage embedded systems where bipolar output is unnecessary |
Compared with AD768ARZ and MAX5316BCP+, the AD669BNZ uniquely integrates a laser-trimmed 10 V reference, output amplifier, and double-buffered latches in a single DIP package-enabling drop-in, self-contained 0 V to +10 V or ±10 V voltage generation without external support components.
Availability
AD669BNZ is available at Aetrix Electronics and suitable for industrial process control, automated test equipment, medical instrumentation, and calibration & metrology standards requiring stable component supply across extended temperature ranges.
Supply support for AD669BNZ 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.
The AD669 series belongs to Analog Devices' DACPORT® family-designed specifically for applications demanding complete, calibrated, single-chip 16-bit DAC functionality with minimal external components and guaranteed monotonicity over temperature.
FAQ
What is the operating temperature range specified for the AD669BNZ?
The AD669BNZ is rated for operation from –40°C to +85°C, with guaranteed performance including ±2 LSB integral nonlinearity and 15 ppm/°C gain drift across this full industrial temperature range. This specification applies specifically to the BN grade in the plastic DIP package (N-28), as confirmed in the official Analog Devices ordering guide and datasheet revision A.
Does the AD669BNZ require external components to configure unipolar or bipolar output?
No, the AD669BNZ does not require external components to configure its output range. A unipolar 0 V to +10 V output is achieved by connecting SPAN/BIP OFF (Pin 26) to VOUT (Pin 25), and a bipolar –10 V to +10 V output is achieved by connecting SPAN/BIP OFF (Pin 26) to REF IN (Pin 27). These connections are defined in the AD669BNZ functional block diagram and analog circuit connections section.
What is the maximum load the AD669BNZ output can drive while maintaining specified settling time?
The AD669BNZ output is characterized for a 2 kΩ || 1000 pF load, under which it achieves 10 µs typical settling time to ±1/2 LSB for a full-scale step. Driving heavier capacitive loads (>1000 pF) or lower resistive loads (<2 kΩ) will increase settling time and may degrade linearity; the datasheet specifies short-circuit current capability of 25 mA but does not guarantee performance beyond the tested load condition.
Can the AD669BNZ be used with an external reference, and what impact does that have on accuracy?
Yes, the AD669BNZ supports external references (e.g., AD688) applied to REF IN. However, gain and bipolar offset are trimmed using the internal 10 V reference, so using an external reference introduces additional initial gain error-up to 5 mV (≈33 LSB) if the external reference differs by 15 mV from the internal trim point. This is documented in the "Using the AD669 with the AD688" application section.
How does the double-buffered latch architecture of the AD669BNZ improve system-level timing?
The AD669BNZ's two-stage latch (first rank controlled by CS/L1, second rank by LDAC) eliminates data skew between parallel inputs and prevents spurious outputs during partial updates. By loading all DACs' first-rank registers independently and then asserting LDAC simultaneously, multiple AD669BNZ devices update their analog outputs in perfect synchrony-enabling coherent multi-channel waveform synthesis without added timing logic.
AD669BNZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- DACPORT®
- Package/Case:
- 28-DIP (0.600", 15.24mm)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Number of Bits:
- 16
- Number of D/A Converters:
- 1
- Settling Time:
- 13µs
- Output Type:
- Voltage - Buffered
- Differential Output:
- No
- Data Interface:
- Parallel
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- ±13.5V ~ 16.5V
- Voltage - Supply, Digital:
- 5V
- INL/DNL (LSB):
- ±2 (Max), ±2 (Max)
- Architecture:
- R-2R
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 28-PDIP
- Mounting Type:
- Through Hole
- Grade:
- -
- Qualification:
- -
AD669BNZ FAQ
1.How can I place an order for AD669BNZ through Aetrix?
Please submit a Request for Quotation (RFQ) for AD669BNZ 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 AD669BNZ reliable?
The price and inventory of AD669BNZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD669BNZ is usually 5 days.
3.What payment methods are accepted for AD669BNZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD669BNZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD669BNZ?
AD669BNZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD669BNZ 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 AD669BNZ?
For technical support, including AD669BNZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD669BNZ requirements.
6.How does Aetrix verify that AD669BNZ is sourced from the original manufacturer or authorized distributors?
All AD669BNZ 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 AD669BNZ meets industry standards.
7.What is the process for return or replacement of AD669BNZ?
All AD669BNZ units undergo pre-shipment inspection (PSI). If there is an issue with AD669BNZ, 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 AD669BNZ part is unused and in its original packaging.
Return procedure for AD669BNZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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