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Analog Devices Inc. AD5290YRMZ50-R7
- Part No.:
- AD5290YRMZ50-R7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Potentiometers
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
AD5290YRMZ50-R7.pdf
- Description:
- IC DGTL POT 50KOHM 256TAP 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,555
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Product details
Overview
AD5290YRMZ50-R7 from Analog Devices is a 256-position, 50 kΩ digital potentiometer in MSOP-10 package, supporting ±15 V dual-supply or +30 V single-supply operation. It functions as a programmable resistor or voltage divider with 35 ppm/°C resistance tempco, 0.002% THD, and SPI-compatible 3-wire interface-used in high-voltage DACs and programmable power supplies.
For engineers reviewing the AD5290YRMZ50-R7 datasheet, AD5290YRMZ50-R7 pinout, AD5290YRMZ50-R7 application, or AD5290YRMZ50-R7 equivalent, this page delivers verified electrical specs, terminal roles, automotive-grade temperature performance (−40°C to +125°C), and real-world design implications for precision analog control circuits.
Technical Context
The AD5290YRMZ50-R7 implements a 3-stage segmented RDAC architecture with patented iCMOS™ process, enabling ±15 V rail-to-rail analog terminal operation while maintaining low power (765 μW typical) and high linearity (±0.5 LSB INL/DNL). Its wiper resistance (50–100 Ω) and 35 ppm/°C end-to-end tempco are specified across −40°C to +125°C.
It uses a positive-edge-triggered 3-wire SPI interface (CS, CLK, SDI) with open-drain SDO supporting daisy-chain configuration. The device features midscale preset, internal POR, and guaranteed monotonicity-critical for closed-loop gain/offset tuning in industrial power systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resistance Value | 50 kΩ nominal, ±30% tolerance at +25°C - defines full-scale analog range and current-handling limits (±5 mA continuous) |
| Resolution | 256 positions (8-bit) - enables 0.39% step resolution for fine-grained gain/offset adjustment |
| Supply Range | +30 V single-supply or ±15 V dual-supply - supports high-voltage signal conditioning without external level-shifting |
| Tempco (RAB) | 35 ppm/°C - ensures stable resistance over automotive temperature range (−40°C to +125°C) |
| THD | 0.002% typical at 1 kHz - preserves signal fidelity in audio and precision sensor interfaces |
| Interface | 3-wire SPI-compatible (CS, CLK, SDI), open-drain SDO - enables microcontroller integration and multi-device daisy-chaining |
| Settling Time | 4 μs to ±1 LSB - allows rapid reconfiguration in dynamic control loops |
Pinout & Package
AD5290YRMZ50-R7 is housed in a compact MSOP-10 package (3 mm × 3 mm, 0.5 mm pitch), optimized for space-constrained automotive and industrial PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A | Analog Terminal A | High-side resistor endpoint; voltage range = VSS to VDD - used as input or reference in divider/rheostat modes |
| B | Analog Terminal B | Low-side resistor endpoint; voltage range = VSS to VDD - forms resistive ladder with A and W |
| VSS | Negative Supply | Connect to 0 V in single-supply mode; enables ±15 V operation when biased negative |
| GND | Digital Ground | Reference for logic inputs only; must be isolated from analog ground to minimize noise coupling |
| CS | Chip Select | Active-low enable; rising edge latches serial data into RDAC register - controls update timing and daisy-chain synchronization |
| CLK | Serial Clock | Positive-edge-triggered; max 4 MHz - determines programming speed and noise immunity in noisy environments |
| SDI | Serial Data Input | MSB-first 8-bit command stream - configures wiper position or initiates reset sequences |
| SDO | Serial Data Output | Open-drain output requiring external pull-up; shifts out prior SDI byte - enables cascaded programming of multiple devices |
| VDD | Positive Supply | Supports +4.5 V to +33 V - powers analog core and logic; must be powered before applying voltages to A/B/W |
| W | Wiper Terminal | Programmable tap point; voltage range = VSS to VDD - delivers adjustable resistance or divided voltage output |
Key Features
| Feature | Design Value |
|---|---|
| Automotive Temperature Range | Guaranteed operation from −40°C to +125°C - suitable for under-hood and industrial control applications without derating |
| iCMOS™ Process Technology | Enables 30 V analog operation with low power (765 μW) and small MSOP-10 footprint - reduces system size and thermal load |
| Midscale Preset | Hardware-initiated default position (code 0x80) on power-up - eliminates need for firmware initialization in fail-safe systems |
| Low THD (0.002%) | Minimizes harmonic distortion in audio volume control and sensor signal paths - preserves dynamic range and SNR |
| Monotonic Performance | Guaranteed ±1 LSB DNL across all codes - ensures predictable step response in closed-loop feedback systems |
Applications
| High-Voltage DAC | Programmable Power Supply |
|---|---|
Use Scenario: Generating precise, software-controlled analog voltage outputs up to ±15 V in test equipment and calibration systems. IC Role / Device Role / Timing Role: Acts as a high-voltage, digitally programmable resistor divider - replaces discrete DAC + op-amp stages. Use Value: Eliminates external amplification and trimming; achieves 0.002% THD and 5 ppm/°C voltage-divider tempco for metrology-grade accuracy. |
Use Scenario: Adjusting output voltage and current limits in lab-grade and industrial DC power supplies. IC Role / Device Role / Timing Role: Configures feedback network of error amplifier - dynamically sets regulation setpoints via microcontroller. Use Value: Enables remote recalibration and adaptive load compensation without hardware changes; supports −40°C to +125°C ambient operation. |
| Programmable Gain/Offset | Audio Volume Control |
Use Scenario: Real-time correction of sensor offset drift and amplifier gain variations in automotive engine control units. IC Role / Device Role / Timing Role: Serves as digitally tunable element in instrumentation amplifier feedback path - adjusts transfer function on-the-fly. Use Value: Compensates for thermal drift using onboard temperature sensor feedback; maintains 35 ppm/°C resistance stability over full automotive range. |
Use Scenario: Low-noise, click-free volume adjustment in premium automotive infotainment head units. IC Role / Device Role / Timing Role: Functions as rheostat-mode variable resistor in analog audio signal path - replaces mechanical potentiometers. Use Value: Delivers 0.002% THD and 4 μs settling time to prevent audible artifacts during fast volume transitions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5292YRMZ50-R7 | Same 50 kΩ, 256-position, MSOP-10 package but with I²C interface instead of SPI - no SDO pin, different timing and addressing | Requires I²C host controller; lacks daisy-chain capability and midscale preset feature | Select when system already uses I²C bus and space/power constraints favor identical analog specs with simplified wiring |
| MAX5487ETA+T | 50 kΩ, 256-tap, SPI interface, but rated only for +5.5 V supply - no ±15 V or +30 V operation; tempco = 50 ppm/°C | Limited to low-voltage consumer electronics; unsuitable for high-voltage industrial or automotive use | Choose only for cost-sensitive, non-automotive designs where supply voltage ≤ 5.5 V and extended temperature range is not required |
Compared with AD5290YRMZ50-R7, AD5292YRMZ50-R7 offers identical analog performance but trades SPI flexibility for I²C simplicity, while MAX5487ETA+T sacrifices high-voltage capability and temperature range for lower unit cost in benign environments.
Availability
AD5290YRMZ50-R7 is available at Aetrix Electronics and suitable for programmable power supplies, high-voltage DACs, and automotive sensor conditioning systems requiring stable component supply across extended temperature and voltage ranges.
Supply support for AD5290YRMZ50-R7 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 industrial, automotive, communications, and healthcare markets since 1965.
The AD5290YRMZ50-R7 belongs to Analog Devices' precision digital potentiometer product line, designed specifically for high-voltage, high-reliability analog control in automotive and industrial systems where mechanical potentiometers fail.
FAQ
What is the maximum operating voltage for AD5290YRMZ50-R7 analog terminals?
The AD5290YRMZ50-R7 analog terminals (A, B, W) support voltages from VSS to VDD. With ±15 V dual supply, they operate from −15 V to +15 V; with +30 V single supply, from 0 V to +30 V. Absolute maximum ratings allow VA/VB/VW to reach −16.5 V to +35 V relative to GND, but sustained operation beyond VSS–VDD violates specification limits and risks damage. Always power VDD/VSS before applying signals to A/B/W.
Does AD5290YRMZ50-R7 support daisy-chain configuration?
Yes, AD5290YRMZ50-R7 supports daisy-chain operation via its open-drain SDO pin, which shifts out the previous frame's SDI data. To implement chaining, connect one device's SDO to the next device's SDI with an external pull-up resistor (e.g., 2.2 kΩ to 5 V). All CS lines are tied together, and the master sends N × 8 bits (N = number of devices) before raising CS to latch data simultaneously.
What is the wiper resistance specification for AD5290YRMZ50-R7?
The AD5290YRMZ50-R7 has a wiper resistance (RW) of 50 Ω to 100 Ω, dependent on temperature and VDD. At +25°C and ±15 V supply, RW is typically 75 Ω. This value doubles from +25°C to +125°C, so design calculations for absolute resistance (e.g., RWB) must include RW contribution per Equation 1 in the datasheet: RWB = (D/256) × RAB + 3 × RW.
Is AD5290YRMZ50-R7 suitable for audio applications?
Yes, AD5290YRMZ50-R7 is qualified for audio volume control due to its 0.002% THD (typical at 1 kHz), 4 μs settling time, and monotonic 256-step response. Its 50 kΩ resistance matches standard audio line-level impedances, and the −40°C to +125°C rating supports deployment in automotive cabins. Avoid using it in high-current headphone driver paths - limit terminal current to ±5 mA continuous.
How does the midscale preset function work on AD5290YRMZ50-R7?
The AD5290YRMZ50-R7 incorporates a hardware midscale preset that loads code 0x80 (128 decimal) into the wiper register on power-up, independent of SPI commands. This occurs after valid VDD/VSS and POR stabilization, ensuring a known, repeatable starting point for safety-critical systems. No external components or firmware initialization are required to achieve this behavior.
AD5290YRMZ50-R7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Taper:
- Linear
- Configuration:
- Potentiometer
- Number of Circuits:
- 1
- Number of Taps:
- 256
- Resistance (Ohms):
- 50k
- Interface:
- SPI
- Memory Type:
- Volatile
- Voltage - Supply:
- 4.5V ~ 33V, ±4.5V ~ 16.5V
- Features:
- Cascade Pin
- Tolerance:
- ±30%
- Temperature Coefficient (Typ):
- 35ppm/°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 10-MSOP
- Operating Temperature:
- -40°C ~ 125°C
- Resistance - Wiper (Ohms) (Typ):
- 50
AD5290YRMZ50-R7 FAQ
1.How can I place an order for AD5290YRMZ50-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD5290YRMZ50-R7 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 AD5290YRMZ50-R7 reliable?
The price and inventory of AD5290YRMZ50-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD5290YRMZ50-R7 is usually 5 days.
3.What payment methods are accepted for AD5290YRMZ50-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD5290YRMZ50-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD5290YRMZ50-R7?
AD5290YRMZ50-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD5290YRMZ50-R7 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 AD5290YRMZ50-R7?
For technical support, including AD5290YRMZ50-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD5290YRMZ50-R7 requirements.
6.How does Aetrix verify that AD5290YRMZ50-R7 is sourced from the original manufacturer or authorized distributors?
All AD5290YRMZ50-R7 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 AD5290YRMZ50-R7 meets industry standards.
7.What is the process for return or replacement of AD5290YRMZ50-R7?
All AD5290YRMZ50-R7 units undergo pre-shipment inspection (PSI). If there is an issue with AD5290YRMZ50-R7, 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 AD5290YRMZ50-R7 part is unused and in its original packaging.
Return procedure for AD5290YRMZ50-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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