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Analog Devices Inc. AD5204BRUZ10
- Part No.:
- AD5204BRUZ10
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Potentiometers
- Package:
- 24-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AD5204BRUZ10.pdf
- Description:
- IC DGT POT 10KOHM 256TAP 24TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:10,997
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Product details
Overview
AD5204BRUZ10 from Analog Devices is a 4-channel, 256-position digital potentiometer with 10 kΩ end-to-end resistance, SPI-compatible 3-wire serial 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 voltage dividers.
For engineers reviewing the AD5204BRUZ10 datasheet, AD5204BRUZ10 pinout, AD5204BRUZ10 application, or AD5204BRUZ10 equivalent, key selection criteria include channel count (4), terminal resistance (10 kΩ), wiper settling time (2 μs at 10 kΩ), shutdown capability (SHDN pin), and TSSOP-24 package compatibility with industrial temperature range (−40°C to +85°C).
Technical Context
The AD5204BRUZ10 implements four independent, monotonic 8-bit digitally controlled variable resistors using a resistor ladder architecture with CMOS switch matrix. Each channel features dedicated latch storage, enabling random-access updates via 11-bit serial word (3-bit address + 8-bit data) on rising CLK edge while CS is low.
It supports both rheostat (A–W or B–W) and potentiometer divider (A–W–B) configurations. In divider mode, output voltage drift is reduced to 15 ppm/°C due to ratiometric operation; in rheostat mode, resistance temperature coefficient is 700 ppm/°C, and wiper resistance is 50–100 Ω.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | 4 independent RDAC channels, each with dedicated A/W/B terminals and latch |
| Resolution | 8-bit (256 positions), monotonic per channel, ±0.25 LSB DNL guaranteed |
| Terminal Resistance | 10 kΩ ±30% at 25°C; enables precise 0–10 kΩ rheostat or 0–5 V divider scaling |
| Supply Range | +2.7 V to +5.5 V single supply or ±2.7 V dual supply; supports mixed-voltage system interfacing |
| Wiper Settling Time | 2 μs (10 kΩ version, ±1 LSB error band); ensures fast reconfiguration in closed-loop control |
| Interface | 3-wire SPI-compatible (CLK, CS, SDI); SDO daisy-chain support simplifies multi-pot systems |
| Temperature Range | −40°C to +85°C extended industrial grade; validated across full range for production reliability |
Pinout & Package
AD5204BRUZ10 is housed in a 24-lead TSSOP package (body size 7.8 mm × 4.4 mm, 0.65 mm pitch), lead-free and RoHS-compliant. Pin 1 marked, exposed pad not electrically connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS (Pin 4) | Chip Select Input | Active-low enable for serial register loading; rising edge decodes address bits and transfers data to target RDAC latch |
| PR (Pin 5) | Preset Input | Active-low signal forcing all four wipers to midscale (0x80); used for fault recovery and deterministic startup |
| SHDN (Pin 7) | Shutdown Control | Active-low input disconnecting all Terminal A nodes and shorting W to B; reduces current to ≤5 μA |
| SDI (Pin 8) | Serial Data Input | MSB-first 11-bit serial word (3 address + 8 data); synchronous to CLK rising edge |
| SDO (Pin 10) | Serial Data Output | Open-drain output enabling daisy-chaining without external logic; requires external pull-up |
| A1–A4 (Pins 18,19,22,15) | Channel Terminal A | Fixed end of resistor ladder; open-circuited during SHDN; voltage range = VSS to VDD |
| W1–W4 (Pins 17,20,14,23) | Channel Wiper | Digitally positioned tap point; delivers programmable resistance (RWB or RWA) or ratiometric voltage (VW) |
| B1–B4 (Pins 16,21,13,24) | Channel Terminal B | Fixed end opposite A; tied to W during SHDN; serves as reference node in divider mode |
Key Features
| Feature | Design Value |
|---|---|
| Midscale Power-On Reset | Internal circuitry automatically loads 0x80 into all latches at power-up, ensuring known initial resistance state |
| Daisy-Chain Capable Interface | SDO pin allows cascading multiple AD5204BRUZ10 devices on one SPI bus without address decoding logic |
| Low-Power Shutdown Mode | SHDN pin reduces supply current to ≤5 μA while preserving latch settings for instant wake-up |
| Ratiometric Voltage Divider Stability | 15 ppm/°C tempco in potentiometer mode-enables stable reference generation without external calibration |
| Robust Terminal Ratings | ±20 mA pulsed / ±11 mA continuous current handling on 10 kΩ channels; supports active bias networks |
Applications
| Instrumentation Gain Adjustment | Programmable Filter Tuning |
|---|---|
|
Use Scenario: Calibrating gain in a programmable-gain instrumentation amplifier (e.g., AD825x) across sensor ranges. IC Role / Device Role / Timing Role: Rheostat-mode AD5204BRUZ10 replaces mechanical trimmer in feedback path to set precise closed-loop gain (e.g., 1× to 1000×). Use Value: Eliminates manual calibration; enables factory/software trim with 0.4% resolution (1/256) and <2 μs update latency. |
Use Scenario: Dynamically adjusting cutoff frequency of active RC filters in medical signal conditioning. IC Role / Device Role / Timing Role: Potentiometer-divider AD5204BRUZ10 sets bias voltage for OTA-based filter tuning or adjusts RC time constant via programmable resistance. Use Value: Enables real-time filter reconfiguration without hardware change; 15 ppm/°C ratiometric stability maintains accuracy over temperature. |
| Line Impedance Matching | Offset Voltage Calibration |
|
Use Scenario: Matching termination impedance in high-speed analog video or RF front-end circuits. IC Role / Device Role / Timing Role: AD5204BRUZ10 configured as adjustable series/shunt rheostat to fine-tune source/load impedance to 75 Ω or 50 Ω. Use Value: Compensates for PCB trace variations and connector tolerances; 10 kΩ version supports 1–1000 Ω matching range with 40 Ω step resolution. |
Use Scenario: Nulling DC offset in precision op-amp circuits (e.g., strain gauge bridges or thermocouple amps). IC Role / Device Role / Timing Role: AD5204BRUZ10 used in summing junction or feedback path to inject programmable correction voltage/current. Use Value: Enables automated zero-calibration during production test; retains offset setting through power cycles via nonvolatile latch retention. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5204BRUZ50 | Same 4-channel, 256-step architecture but 50 kΩ end-to-end resistance; higher wiper settling time (9 μs) | Better suited for high-impedance bias networks or lower-current divider applications where 10 kΩ would load source excessively | Select when circuit requires >10 kΩ channel resistance or improved THD (<0.004%) at low frequencies |
| AD5206BRUZ10 | 6-channel variant in same TSSOP-24 package; identical 10 kΩ resistance, timing, and interface; adds two extra RDACs | Enables consolidation of more trim functions per package-e.g., simultaneous gain/offset/filter tuning in compact designs | Choose when board space is constrained and ≥6 independent adjustments are needed; pin-compatible except PR/SHDN shared functionality |
Compared with AD5204BRUZ50 and AD5206BRUZ10, the AD5204BRUZ10 offers optimal speed/resistance trade-off for medium-impedance gain control, while AD5204BRUZ50 suits high-Z biasing and AD5206BRUZ10 extends channel density without layout change.
Availability
AD5204BRUZ10 is available at Aetrix Electronics and suitable for instrumentation calibration, programmable filter design, line impedance matching, and offset voltage trimming requiring stable component supply across industrial temperature grades.
Supply support for AD5204BRUZ10 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, founded in 1965 and headquartered in Wilmington, MA.
The AD5204BRUZ10 belongs to Analog Devices' precision digital potentiometer product line, engineered for replacing mechanical trimmers in industrial, medical, and test equipment where repeatability, temperature stability, and programmability are critical.
FAQ
What is the terminal resistance tolerance and temperature coefficient of the AD5204BRUZ10?
The AD5204BRUZ10 has a nominal terminal resistance of 10 kΩ with ±30% tolerance at 25°C and a resistance temperature coefficient of 700 ppm/°C. This means resistance changes by approximately 0.07% per °C rise-critical for applications requiring predictable drift behavior in rheostat mode. The AD5204BRUZ10 datasheet specifies this value under VAB = VDD with wiper unconnected.
Does the AD5204BRUZ10 support dual-supply operation, and what are the voltage limits?
Yes, the AD5204BRUZ10 supports ±2.7 V dual-supply operation, with |VDD| + |VSS| limited to <5.5 V. It also operates from +2.7 V to +5.5 V single supply. Resistor terminals (A, B, W) tolerate voltages from VSS to VDD, enabling bipolar signal handling. The AD5204BRUZ10 maintains full 256-step resolution and monotonicity across both supply configurations.
How does the preset (PR) pin function on the AD5204BRUZ10, and is it required for operation?
The PR pin on the AD5204BRUZ10 is an active-low input that forces all four wiper positions to midscale (0x80) regardless of current latch contents. It is optional-AD5204BRUZ10 also performs automatic midscale power-on reset. Using PR enables deterministic recovery after fault conditions, such as brownout or watchdog timeout, without software intervention.
Can the AD5204BRUZ10 be used in daisy-chain configuration, and what is required to implement it?
Yes, the AD5204BRUZ10 supports daisy-chaining via its open-drain SDO pin. To implement, connect SDO of one AD5204BRUZ10 to SDI of the next, with a single pull-up resistor (typically 4.7 kΩ to 5 V). CS must remain low until all 11-bit words for all devices are clocked. The AD5204BRUZ10's SDO remains high-impedance during SHDN, preventing bus contention.
What is the maximum continuous current rating per channel of the AD5204BRUZ10, and how is it determined?
The AD5204BRUZ10 supports ±11 mA continuous current per channel for the 10 kΩ version, derived from its absolute maximum ratings and thermal limits. This is calculated assuming worst-case power dissipation (I²R) within package thermal constraints. Exceeding this risks switch degradation; the AD5204BRUZ10 datasheet specifies ±20 mA as pulsed limit (≤10 ms duty cycle).
AD5204BRUZ10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 24-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Taper:
- Linear
- Configuration:
- Potentiometer
- Number of Circuits:
- 4
- Number of Taps:
- 256
- Resistance (Ohms):
- 10k
- Interface:
- SPI
- Memory Type:
- Volatile
- Voltage - Supply:
- 2.7V ~ 5.5V, ±2.3V ~ 2.7V
- Features:
- Cascade Pin, 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
AD5204BRUZ10 FAQ
1.How can I place an order for AD5204BRUZ10 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD5204BRUZ10 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 AD5204BRUZ10 reliable?
The price and inventory of AD5204BRUZ10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD5204BRUZ10 is usually 5 days.
3.What payment methods are accepted for AD5204BRUZ10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD5204BRUZ10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD5204BRUZ10?
AD5204BRUZ10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD5204BRUZ10 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 AD5204BRUZ10?
For technical support, including AD5204BRUZ10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD5204BRUZ10 requirements.
6.How does Aetrix verify that AD5204BRUZ10 is sourced from the original manufacturer or authorized distributors?
All AD5204BRUZ10 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 AD5204BRUZ10 meets industry standards.
7.What is the process for return or replacement of AD5204BRUZ10?
All AD5204BRUZ10 units undergo pre-shipment inspection (PSI). If there is an issue with AD5204BRUZ10, 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 AD5204BRUZ10 part is unused and in its original packaging.
Return procedure for AD5204BRUZ10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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