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Analog Devices Inc. AD5689RACPZ-RL7
- Part No.:
- AD5689RACPZ-RL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital to Analog Converters (DAC)
- Package:
- 16-WFQFN Exposed Pad, CSP
- Datasheet:
-
AD5689RACPZ-RL7.pdf
- Description:
- IC DAC 16BIT V-OUT 16LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:1,841
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Product details
Overview
AD5689RACPZ-RL7 from Analog Devices is a dual, 16-bit buffered voltage-output DAC with integrated 2.5 V, 2 ppm/°C reference, SPI interface, and user-selectable gain (×1 or ×2). It delivers ±2 LSB INL, ±0.1% FSR TUE, and rail-to-rail output drive up to 20 mA per channel. It operates from 2.7 V to 5.5 V and is AEC-Q100 qualified for automotive power amplifier biasing and industrial PLC I/O.
For engineers reviewing the AD5689RACPZ-RL7 datasheet, AD5689RACPZ-RL7 pinout, AD5689RACPZ-RL7 application, or AD5689RACPZ-RL7 equivalent, key selection considerations include guaranteed monotonicity, low-glitch performance (0.5 nV·sec), 50 MHz SPI with readback/daisy-chain, reset-to-zero/midscale control, and 3 mm × 3 mm LFCSP packaging for space-constrained precision analog systems.
Technical Context
The AD5689RACPZ-RL7 implements two independent string DAC cores with buffered rail-to-rail output amplifiers, each featuring per-channel power-down mode reducing current to 4 µA. Its internal reference is factory-trimmed and characterized over −40°C to +105°C with 5 ppm/°C max drift and 12 µV p-p (0.1–10 Hz) noise.
Serial interface logic supports 1.62 V to 5.5 V VLOGIC levels and operates at up to 50 MHz SCLK; timing includes SYNC-frame synchronization, LDAC-controlled simultaneous update, and RSTSEL-configurable power-on state (zero or midscale). The GAIN pin selects full-scale output of 2.5 V or 5 V using the internal reference.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16 bits - supports 65,536 discrete output steps per channel for high-precision closed-loop control. |
| INL (max) | ±2 LSB - ensures monotonic behavior and accurate transfer function across full code range. |
| TUE (max) | ±0.1% of FSR - guarantees end-to-end accuracy without system-level calibration in most applications. |
| Reference TC | 2 ppm/°C typical - minimizes temperature-induced output drift in industrial and automotive environments. |
| Settling time | 8 µs to ±2 LSB - enables fast dynamic response in servo and real-time waveform generation. |
| Output drive | 20 mA per channel, 0.5 V from rails - directly drives op-amp inputs, transducer bias networks, or moderate loads without external buffers. |
| SPI speed | 50 MHz - supports high-throughput configuration and streaming updates in microcontroller- or FPGA-based systems. |
Pinout & Package
AD5689RACPZ-RL7 is housed in a 3 mm × 3 mm, 16-lead LFCSP package with exposed pad (EPAD) requiring connection to GND. Pin 1 is SDIN; pin 16 is NC; EPAD must be soldered to ground plane for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VOUTA / VOUTB | Analog output terminals | Rail-to-rail buffered voltage outputs for DAC A and B; each capable of sourcing/sinking 20 mA. |
| VREF | Reference input/output | Default output of internal 2.5 V reference; configurable as external reference input when internal ref disabled. |
| GAIN | Digital gain select | Logic-low = 1× gain (0–2.5 V FS); logic-high = 2× gain (0–5 V FS); sets full-scale range without external components. |
| RSTSEL | Power-on reset mode select | Configures DAC outputs to zero scale (GND) or midscale (1.25 V / 2.5 V) at power-up or RESET assertion. |
| LDAC | Load DAC asynchronous control | Pulsing low updates both DAC registers simultaneously-critical for synchronized multi-channel output transitions. |
| SYNC / SCLK / SDIN / SDO | SPI interface signals | Standard 4-wire SPI with daisy-chain and readback capability; SDO enables cascaded configuration without additional GPIO. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 2.5 V reference | 2 ppm/°C typical drift and 12 µV p-p (0.1–10 Hz) noise enable stable, low-noise output without external reference ICs. |
| Per-channel power-down | Reduces IDD to 4 µA per channel - extends battery life in portable instrumentation and enables dynamic power gating in multi-DAC systems. |
| 1.62 V to 5.5 V logic compatibility | VLOGIC pin supports direct interfacing with 1.8 V, 3 V, or 5 V microcontrollers without level shifters. |
| Low glitch impulse | 0.5 nV·sec - minimizes transient injection during code changes, critical for sensitive analog front-ends and optical bias control. |
| AEC-Q100 qualification | Rated for −40°C to +105°C operation with automotive-grade reliability - suitable for under-hood and ADAS subsystems. |
Applications
| Optical Transceiver Bias Control | Base Station Power Amplifier Tuning |
|---|---|
Use Scenario: Precise DC bias adjustment of laser diode drivers and modulator bias points in SFP+/QSFP modules. IC Role / Device Role / Timing Role: Dual-channel DAC providing independent, stable voltage references for TX bias and RX gain control loops. Use Value: 2 ppm/°C reference stability maintains wavelength accuracy over temperature; low glitch prevents optical burst errors during recalibration. |
Use Scenario: Closed-loop envelope tracking and predistortion bias tuning in GaN/LDMOS RF power amplifiers. IC Role / Device Role / Timing Role: High-accuracy voltage source setting gate voltages and collector supply trim in multi-stage PA architectures. Use Value: ±2 LSB INL ensures linear PA efficiency mapping; 50 MHz SPI allows real-time adaptation to changing signal conditions. |
| Industrial PLC Analog Output Module | Process Control Loop Calibration |
Use Scenario: Generating 0–10 V or 4–20 mA loop outputs in modular I/O cards for factory automation. IC Role / Device Role / Timing Role: Dual buffered DAC delivering isolated, calibrated analog outputs with channel independence. Use Value: TUE ≤ ±0.1% FSR eliminates need for per-channel trimming; rail-to-rail output supports full industrial voltage ranges. |
Use Scenario: Field calibration of pressure, temperature, and flow sensors using portable handheld calibrators. IC Role / Device Role / Timing Role: Precision voltage source generating NIST-traceable reference points for sensor zero/span adjustment. Use Value: Low long-term drift (<5 ppm/°C) and thermal hysteresis (25 ppm after cycling) ensure calibration validity across maintenance intervals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel precision DAC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5696RBRUZ | 16-bit, quad-channel, same 2 ppm/°C reference and SPI interface; larger 20-lead TSSOP package. | Better suited for systems requiring ≥4 analog outputs; higher pin count increases PCB area and routing complexity. | Select AD5696RBRUZ only when quad-channel density justifies footprint and layout overhead over dual-channel optimization. |
| MAX5717ETE+ | 16-bit, dual-channel, but uses external reference and lacks integrated 2.5 V reference; 12 ppm/°C typical ref TC. | Requires external reference IC and calibration for comparable accuracy; lower baseline precision limits use in high-stability applications. | Choose MAX5717ETE+ only if system already provides ultra-low-drift external reference and cost sensitivity outweighs board-space and calibration burden. |
Compared with AD5689RACPZ-RL7, AD5696RBRUZ offers higher channel count at the expense of size and routing density, while MAX5717ETE+ trades integrated reference simplicity for greater design flexibility and higher temperature-induced error-making AD5689RACPZ-RL7 optimal for compact, self-contained, high-stability dual-DAC implementations.
Availability
AD5689RACPZ-RL7 is available at Aetrix Electronics and suitable for optical transceivers, base station power amplifiers, and industrial PLC I/O modules requiring stable component supply, AEC-Q100 compliance, and long-lifecycle support.
Supply support for AD5689RACPZ-RL7 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 nanoDAC+™ family-including AD5689RACPZ-RL7-is engineered for precision industrial, automotive, and communications systems demanding integrated reference stability, low power, and small-footprint dual DAC functionality.
FAQ
What is the reference voltage specification for AD5689RACPZ-RL7?
The AD5689RACPZ-RL7 integrates a factory-trimmed 2.5 V reference with initial accuracy of ±750 µV pre-reflow and a typical temperature coefficient of 2 ppm/°C (maximum 5 ppm/°C). This reference powers both DAC channels and is enabled by default; it can be disabled to use an external reference via the VREF pin.
Does AD5689RACPZ-RL7 support simultaneous update of both DAC outputs?
Yes, AD5689RACPZ-RL7 supports simultaneous DAC output updates via the LDAC pin: pulsing LDAC low transfers data from both input registers to their respective DAC registers, ensuring synchronized transitions. This is essential for applications like differential signal generation or matched channel control where timing skew must be eliminated.
What package type and thermal characteristics does AD5689RACPZ-RL7 have?
AD5689RACPZ-RL7 uses a 3 mm × 3 mm, 16-lead LFCSP package with exposed pad (EPAD) that must be connected to GND. Its θJA is 70°C/W (4-layer board, no airflow), enabling reliable operation up to +105°C ambient-validated under AEC-Q100 automotive qualification requirements.
Can AD5689RACPZ-RL7 operate with a 1.8 V logic supply?
Yes, AD5689RACPZ-RL7 supports VLOGIC from 1.62 V to 5.5 V, fully compatible with 1.8 V CMOS logic. The digital interface pins (SYNC, SCLK, SDIN, SDO, LDAC, GAIN, RSTSEL, RESET) tolerate this range, eliminating level shifters when interfacing with modern low-voltage microcontrollers and FPGAs.
How does the GAIN pin affect the output voltage range of AD5689RACPZ-RL7?
The GAIN pin configures full-scale output: tied to GND yields 0 V to 2.5 V (gain = 1); tied to VLOGIC yields 0 V to 5.0 V (gain = 2). This selection applies identically to both VOUTA and VOUTB and requires no external resistors-enabling flexible range adaptation within a single BOM.
AD5689RACPZ-RL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- nanoDAC+®
- Package/Case:
- 16-WFQFN Exposed Pad, CSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Number of Bits:
- 16
- Number of D/A Converters:
- 2
- Settling Time:
- 8µs
- Output Type:
- Voltage - Buffered
- Differential Output:
- No
- Data Interface:
- SPI, DSP
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 2.7V ~ 5.5V
- Voltage - Supply, Digital:
- 1.8V ~ 5.5V
- INL/DNL (LSB):
- ±2, ±1 (Max)
- Architecture:
- String DAC
- Operating Temperature:
- -40°C ~ 105°C
- Supplier Device Package:
- 16-LFCSP (3x3)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD5689RACPZ-RL7 FAQ
1.How can I place an order for AD5689RACPZ-RL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD5689RACPZ-RL7 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 AD5689RACPZ-RL7 reliable?
The price and inventory of AD5689RACPZ-RL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD5689RACPZ-RL7 is usually 5 days.
3.What payment methods are accepted for AD5689RACPZ-RL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD5689RACPZ-RL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD5689RACPZ-RL7?
AD5689RACPZ-RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD5689RACPZ-RL7 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 AD5689RACPZ-RL7?
For technical support, including AD5689RACPZ-RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD5689RACPZ-RL7 requirements.
6.How does Aetrix verify that AD5689RACPZ-RL7 is sourced from the original manufacturer or authorized distributors?
All AD5689RACPZ-RL7 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 AD5689RACPZ-RL7 meets industry standards.
7.What is the process for return or replacement of AD5689RACPZ-RL7?
All AD5689RACPZ-RL7 units undergo pre-shipment inspection (PSI). If there is an issue with AD5689RACPZ-RL7, 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 AD5689RACPZ-RL7 part is unused and in its original packaging.
Return procedure for AD5689RACPZ-RL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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