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Analog Devices Inc. AD5206BRUZ50-REEL7
- Part No.:
- AD5206BRUZ50-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Potentiometers
- Package:
- 24-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AD5206BRUZ50-REEL7.pdf
- Description:
- IC DGT POT 50KOHM 256TAP 24TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:574
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Product details
Overview
AD5206BRUZ50-REEL7 from Analog Devices is a 6-channel, 256-position digital potentiometer with 50 kΩ end-to-end resistance, SPI-compatible 3-wire interface, ±2.7 V dual-supply or +2.7 V to +5.5 V single-supply operation, and midscale power-on reset-used for precision gain/offset trimming in instrumentation amplifiers and programmable filter tuning.
For engineers reviewing the AD5206BRUZ50-REEL7 datasheet, AD5206BRUZ50-REEL7 pinout, AD5206BRUZ50-REEL7 application, or AD5206BRUZ50-REEL7 equivalent, key selection criteria include channel count (6), terminal resistance (50 kΩ), wiper settling time (9 μs at RAB = 50 kΩ), temperature coefficient (700 ppm/°C), and TSSOP-24 package compatibility with industrial PCB layouts.
Technical Context
The AD5206BRUZ50-REEL7 implements six independent 8-bit digitally controlled variable resistors, each with a fixed 50 kΩ A–B terminal resistance and wiper position selectable via 11-bit serial word (3 address + 8 data bits). All channels operate simultaneously under shared CS/CLK/SDI control with individual address decoding (A2–A0).
It supports both rheostat (A–W or B–W) and potentiometer divider (A–W–B) configurations, delivering linear resistance transfer (RWB = Dx/256 × 50 kΩ + RW) and ratio-metric voltage division (VW = Dx/256 × VAB + VB) with 15 ppm/°C tempco in divider mode-enabling stable analog tuning without external calibration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | 6 independent RDACs-enables multi-point analog calibration in single IC, reducing board space vs. discrete potentiometers. |
| Resolution | 8-bit (256 positions)-provides 0.39% step resolution across full 50 kΩ range, sufficient for 12-bit system gain matching. |
| Terminal Resistance | 50 kΩ ±30%-matches common feedback network impedances; nominal value encoded in part number suffix "50". |
| Supply Range | +2.7 V to +5.5 V single or ±2.7 V dual-supports direct interface with 3.3 V/5 V microcontrollers and legacy ±2.5 V analog rails. |
| Wiper Settling Time | 9 μs (RAB = 50 kΩ, ±1 LSB)-ensures fast reconfiguration in closed-loop systems like auto-ranging meters or adaptive filters. |
| Tempco (RAB) | 700 ppm/°C-predictable drift enables compensation in temperature-sensitive transducer signal chains. |
| Interface | 3-wire SPI (CS, CLK, SDI); SDO daisy-chain capable-eliminates GPIO overhead and enables cascaded multi-device control from one MCU port. |
Pinout & Package
AD5206BRUZ50-REEL7 is housed in a 24-lead TSSOP package (4.4 mm × 7.8 mm, 0.65 mm pitch), optimized for automated assembly and thermal performance (θJA = 82.76°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | A6, W6, B6 | Channel 6 potentiometer terminals-fully independent; A6/W6/B6 form complete 3-terminal adjustable resistor. |
| 4 | GND | Digital/analog reference ground-must be low-impedance connection to minimize noise coupling into wiper paths. |
| 5 | CS | Active-low chip select-latches serial register contents on rising edge; enables multi-device sharing of CLK/SDI lines. |
| 6 | VDD | Positive supply input-accepts 2.7–5.5 V; powers internal logic and switch array; decoupling capacitor required. |
| 7 | SDI | Serial data input-MSB-first 11-bit word (3 address + 8 data); compatible with standard MCU SPI hardware in 3-wire mode. |
| 8 | CLK | Positive-edge clock-minimum pulse width 20 ns; timing-critical for reliable shift-register loading and address decode. |
| 9 | VSS | Negative supply input-required for dual-supply operation (±2.7 V); tied to GND for single-supply use. |
| 10–12 | B5, W5, A5 | Channel 5 potentiometer terminals-identical electrical behavior to Channel 6; supports parallel or staggered programming. |
| 13–15 | B3, W3, A3 | Channel 3 potentiometer terminals-shared layout symmetry with Channels 1, 2, 4, 5, 6 for consistent routing in multi-channel designs. |
| 16–18 | B1, W1, A1 | Channel 1 potentiometer terminals-default address 000₂; used for initialization or primary calibration path. |
| 19–21 | A2, W2, B2 | Channel 2 potentiometer terminals-address 001₂; enables sequential addressing without external decoding logic. |
| 22–24 | A4, W4, B4 | Channel 4 potentiometer terminals-address 011₂; completes full 6-channel set; no NC pins in TSSOP configuration. |
Key Features
| Feature | Design Value |
|---|---|
| Independent 6-channel control | Each RDAC latch retains its setting during reprogramming of others-enables asynchronous trimming of multiple signal paths. |
| Midscale power-on preset | Wipers initialize to 0x80 (128/256) at power-up-guarantees known startup state without host MCU intervention. |
| Low wiper resistance | Typical RW = 75 Ω-minimizes insertion loss and THD in audio/voltage-divider applications (<0.004% THD measured). |
| Ratio-metric divider mode | 15 ppm/°C output tempco-achieved by referencing VW to VAB ratio rather than absolute RAB, critical for precision sensor bridges. |
| Daisy-chainable SDO | Open-drain output with level-flexible pull-up-allows serial cascade of multiple AD5206 units using single MCU SPI port and no glue logic. |
Applications
| Instrumentation Gain Calibration | Programmable Low-Pass Filter |
|---|---|
|
Use Scenario: Calibrating gain in a 16-bit precision data acquisition front-end using an op-amp with feedback network. IC Role / Device Role / Timing Role: AD5206BRUZ50-REEL7 serves as digitally programmable feedback resistor (RF) in non-inverting amplifier topology, replacing manual trimmer. Use Value: Enables factory/software-based gain correction with 0.39% step resolution and <15 ppm/°C drift-reducing calibration labor and improving long-term accuracy. |
Use Scenario: Tuning cutoff frequency of a 2nd-order active RC filter in medical ECG signal conditioning. IC Role / Device Role / Timing Role: AD5206BRUZ50-REEL7 configures both R and C scaling elements (via two channels) to maintain Q-factor while adjusting fc. Use Value: Supports real-time filter retuning during device operation without hardware change-critical for adaptive noise suppression algorithms. |
| Line Impedance Matching | Programmable Voltage-to-Current Conversion |
|
Use Scenario: Matching output impedance of a high-speed DAC driver to 50 Ω coaxial transmission line in test equipment. IC Role / Device Role / Timing Role: AD5206BRUZ50-REEL7 operates in rheostat mode (A–W) as series termination resistor, adjusted dynamically per signal amplitude. Use Value: Reduces signal reflections and overshoot by enabling impedance fine-tuning post-layout-avoiding costly board respins. |
Use Scenario: Generating precise 4–20 mA loop current from a microcontroller DAC output in industrial process controllers. IC Role / Device Role / Timing Role: AD5206BRUZ50-REEL7 sets gain resistor in Howland current source, converting 0–2.5 V DAC output to proportional loop current. Use Value: Achieves <0.1% full-scale accuracy over −40°C to +85°C using ratio-metric divider mode-meeting SIL-2 functional safety requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5206BRUZ10-REEL7 | 10 kΩ end-to-end resistance (vs. 50 kΩ); identical pinout, timing, and feature set. | Better suited for low-impedance circuits (e.g., audio volume control, fast-settling current sources) where 50 kΩ causes excessive RC time constants. | Select when circuit bandwidth >100 kHz or when interfacing with low-Z op-amps requiring <20 kΩ feedback. |
| AD5206BRUZ100-REEL7 | 100 kΩ end-to-end resistance; same 6-channel architecture and 256-step resolution. | Ideal for high-impedance bias networks (e.g., photodiode TIA feedback, sensor excitation) where leakage current dominates error budget. | Choose for ultra-low quiescent current designs (<12 μA supply) or when minimizing loading on high-Z sources is critical. |
Compared with AD5206BRUZ10-REEL7 and AD5206BRUZ100-REEL7, the AD5206BRUZ50-REEL7 strikes a balance between bandwidth (137 kHz −3 dB) and noise immunity-making it optimal for general-purpose instrumentation where 50 kΩ matches typical op-amp feedback ranges and sensor bridge impedances.
Availability
AD5206BRUZ50-REEL7 is available at Aetrix Electronics and suitable for instrumentation calibration, programmable filter design, line impedance matching, and voltage-to-current conversion requiring stable component supply across industrial temperature ranges.
Supply support for AD5206BRUZ50-REEL7 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 communications markets since 1965.
The AD5206 forms part of Analog Devices' precision digital potentiometer family, engineered for replacement of mechanical trimmers in environments demanding long-term stability, shock resistance, and software-controlled recalibration.
FAQ
What is the terminal resistance tolerance of the AD5206BRUZ50-REEL7?
The AD5206BRUZ50-REEL7 has a nominal terminal resistance of 50 kΩ with a tolerance of ±30% over temperature (−40°C to +85°C), as specified in Table 1 of the Rev. G datasheet. This wide tolerance reflects process variation but is mitigated in ratio-metric applications (e.g., voltage dividers) where relative matching matters more than absolute value.
Does the AD5206BRUZ50-REEL7 support dual-supply operation?
Yes, the AD5206BRUZ50-REEL7 supports ±2.7 V dual-supply operation (VDD = +2.7 V, VSS = −2.7 V), enabling symmetric rail-to-rail analog signal handling. The resistor terminals (A, B, W) tolerate voltages from VSS to VDD, and digital inputs remain referenced to GND-allowing seamless integration into bipolar signal chains.
How many bits does the AD5206BRUZ50-REEL7 use for wiper position control?
The AD5206BRUZ50-REEL7 uses an 8-bit data word (256 positions) for wiper position control per channel. The full serial command is 11 bits: 3 address bits (A2–A0) to select one of six RDACs, followed by 8 data bits (D7–D0) that set the wiper code-ensuring deterministic, channel-specific updates without crosstalk.
What is the maximum operating temperature range for the AD5206BRUZ50-REEL7?
The AD5206BRUZ50-REEL7 is rated for continuous operation from −40°C to +85°C, meeting extended industrial temperature requirements. This range is validated across all electrical specifications-including wiper resistance, DNL, INL, and supply current-and applies to both single- and dual-supply configurations.
Can the AD5206BRUZ50-REEL7 be used in rheostat mode?
Yes, the AD5206BRUZ50-REEL7 supports rheostat mode (two-terminal variable resistance) by connecting either Terminal A or B to the wiper (W) externally. In this configuration, resistance between W and the unconnected terminal varies from ~75 Ω (wiper contact) to 50 kΩ, with linear transfer function RWB(Dx) = Dx/256 × 50 kΩ + RW.
AD5206BRUZ50-REEL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 24-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Taper:
- Linear
- Configuration:
- Potentiometer
- Number of Circuits:
- 6
- Number of Taps:
- 256
- Resistance (Ohms):
- 50k
- Interface:
- SPI
- Memory Type:
- Volatile
- Voltage - Supply:
- 2.7V ~ 5.5V, ±2.3V ~ 2.7V
- Features:
- Selectable Address
- Tolerance:
- ±30%
- Temperature Coefficient (Typ):
- 700ppm/°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 24-TSSOP
- Operating Temperature:
- -40°C ~ 85°C
- Resistance - Wiper (Ohms) (Typ):
- 50
AD5206BRUZ50-REEL7 FAQ
1.How can I place an order for AD5206BRUZ50-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD5206BRUZ50-REEL7 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 AD5206BRUZ50-REEL7 reliable?
The price and inventory of AD5206BRUZ50-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD5206BRUZ50-REEL7 is usually 5 days.
3.What payment methods are accepted for AD5206BRUZ50-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD5206BRUZ50-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD5206BRUZ50-REEL7?
AD5206BRUZ50-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD5206BRUZ50-REEL7 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 AD5206BRUZ50-REEL7?
For technical support, including AD5206BRUZ50-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD5206BRUZ50-REEL7 requirements.
6.How does Aetrix verify that AD5206BRUZ50-REEL7 is sourced from the original manufacturer or authorized distributors?
All AD5206BRUZ50-REEL7 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 AD5206BRUZ50-REEL7 meets industry standards.
7.What is the process for return or replacement of AD5206BRUZ50-REEL7?
All AD5206BRUZ50-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with AD5206BRUZ50-REEL7, 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 AD5206BRUZ50-REEL7 part is unused and in its original packaging.
Return procedure for AD5206BRUZ50-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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