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Analog Devices Inc. AD5260BRUZ50-REEL7
- Part No.:
- AD5260BRUZ50-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Potentiometers
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AD5260BRUZ50-REEL7.pdf
- Description:
- IC DGT POT 50KOHM 256TAP 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:5,597
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Product details
Overview
AD5260BRUZ50-REEL7 from Analog Devices is a single-channel, 256-position digital potentiometer with 50 kΩ end-to-end resistance, 35 ppm/°C temperature coefficient, SPI-compatible 4-wire interface, and ±5.5 V dual-supply or +15 V single-supply operation. It replaces mechanical potentiometers in precision gain/offset adjustment circuits requiring stable, programmable resistance over −40°C to +85°C.
For engineers reviewing the AD5260BRUZ50-REEL7 datasheet, AD5260BRUZ50-REEL7 pinout, AD5260BRUZ50-REEL7 application, or AD5260BRUZ50-REEL7 equivalent, key selection factors include its 50 kΩ nominal resistance, midscale power-on reset, low 60–150 Ω wiper resistance, 5 μs wiper settling time, and TSSOP-14 package compatibility with high-voltage analog signal paths.
Technical Context
The AD5260BRUZ50-REEL7 implements a digitally controlled variable resistor using a segmented resistor ladder with CMOS switch matrix, enabling linear wiper position control via 8-bit SPI commands. Its architecture supports both rheostat (A–W or B–W) and potentiometer divider (A–W–B) configurations with monotonic 8-bit resolution and guaranteed ±¼ LSB DNL.
It features independent shutdown (SHDN) and preset (PR) pins: SHDN opens A-terminal connections and grounds W to B, reducing current to 5 μA; PR forces wiper to 0x80 (midscale) regardless of latch state. The device operates with logic supply VL decoupled from analog supplies VDD/VSS, supporting mixed-signal interfacing up to 25 MHz clock rate.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resistance value | 50 kΩ nominal A–B terminal resistance; sets gain/attenuation range in voltage divider or current-limiting applications. |
| Resolution | 8-bit (256 positions); enables 0.39% incremental resistance steps for fine analog tuning. |
| Tempco | 35 ppm/°C; ensures <±0.3% resistance drift over −40°C to +85°C, critical for stable sensor biasing or reference scaling. |
| Supply range | +4.5 V to +16.5 V single-supply or ±4.5 V to ±5.5 V dual-supply; supports direct integration into ±5 V or +12 V/15 V industrial signal chains. |
| Wiper resistance | 60–150 Ω; minimizes insertion error in low-impedance feedback paths and preserves THD in audio level control. |
| Settling time | 5 μs to ±1 LSB; enables fast reconfiguration in closed-loop calibration or dynamic filter tuning. |
| Interface | SPI-compatible 4-wire (CS, CLK, SDI, SDO); allows daisy-chaining multiple devices without external decoding logic. |
Pinout & Package
AD5260BRUZ50-REEL7 is housed in a 14-lead thin shrink small-outline package (TSSOP), pin-compatible with industry-standard footprint for surface-mount assembly and thermal management in space-constrained PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A | Resistor terminal A | Fixed end of 50 kΩ resistor ladder; connects to high-side of voltage divider or current source node. |
| W | Wiper terminal | Programmable tap point; output node for adjustable gain, offset, or reference voltage generation. |
| B | Resistor terminal B | Fixed end opposite A; commonly grounded or tied to low-side rail in rheostat mode. |
| VDD | Positive analog supply | Supports up to +16.5 V; powers internal switches and defines maximum terminal voltage swing. |
| VSS | Negative analog supply | Accepts 0 V or −5 V; enables bipolar operation when paired with VDD = +5 V. |
| VL | Logic supply voltage | 2.7–5.5 V; isolates digital interface from analog rails, preventing noise coupling into sensitive analog paths. |
| CS | Chip select (active low) | Latches serial data into RDAC register on rising edge; enables multi-device SPI bus sharing. |
| CLK | Clock input (positive edge) | Up to 25 MHz; synchronizes 8-bit data shift-in; requires clean edges to avoid metastability. |
| SDI | Serial data input | MSB-first 8-bit command stream; configures wiper position or initiates preset/shutdown. |
| SDO | Serial data output | Open-drain; enables daisy-chain readback or cascaded programming without additional logic. |
| SHDN | Shutdown control (active low) | Opens A-terminal, connects W to B, reduces supply current to 5 μA; retains last resistance setting. |
| PR | Preset to midscale (active low) | Forces wiper to 0x80 (128/256) regardless of current latch state; used for fail-safe recovery. |
| GND | Analog ground reference | Common return for VSS and analog signal paths; must be separated from digital ground per layout guidelines. |
| NC | No connect | Pin 13 is unconnected die bond pad; must remain floating or tied to dummy copper only. |
Key Features
| Feature | Design Value |
|---|---|
| Midscale power-on reset | Internal circuitry automatically loads 0x80 into RDAC latch at power-up, ensuring known initial resistance state without host initialization. |
| Low temperature coefficient | 35 ppm/°C resistance drift over full industrial temperature range eliminates need for external temperature compensation in precision instrumentation. |
| Dual-supply capability | Operates from ±4.5 V to ±5.5 V, enabling true bipolar signal handling in op-amp gain stages and AC-coupled sensor interfaces. |
| Wiper settling time | 5 μs to ±1 LSB allows real-time recalibration during system self-test or adaptive filter coefficient updates. |
| Shutdown mode | Reduces current to 5 μA while preserving programmed resistance value, supporting low-power sleep states in battery-operated equipment. |
Applications
| Instrumentation Gain Control | Stereo Audio Level Adjustment |
|---|---|
Use Scenario: Programmable gain stage in precision data acquisition front-end for industrial sensors. IC Role / Device Role / Timing Role: Configurable feedback resistor in non-inverting op-amp topology, adjusting system gain from 1× to 100×. Use Value: Replaces manual trimmer with remote digital calibration, eliminating field service visits and enabling auto-ranging functionality. |
Use Scenario: Independent left/right channel volume control in professional audio mixing console. IC Role / Device Role / Timing Role: Dual-rail rheostat mode wiper acting as programmable attenuator between line-level source and amplifier input. Use Value: Enables synchronized channel matching and recallable presets, avoiding mechanical wear and channel imbalance over time. |
| Programmable Voltage Reference | Line Impedance Matching |
Use Scenario: Adjustable reference voltage generator for ADC/DAC biasing in medical diagnostic equipment. IC Role / Device Role / Timing Role: Potentiometer divider between stable +5 V reference and ground, producing 0–5 V programmable output. Use Value: Provides 8-bit resolution (19.6 mV step) and 35 ppm/°C stability, meeting IEC 60601 accuracy requirements without trimming. |
Use Scenario: Dynamic termination resistor in high-speed communication interface (e.g., RS-485, CAN FD) with varying cable lengths. IC Role / Device Role / Timing Role: Rheostat-mode A–W connection as programmable series termination, tuned to match characteristic impedance (e.g., 120 Ω). Use Value: Compensates for trace/cable impedance variations across production batches, improving signal integrity without hardware change. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5260BRUZ20-REEL7 | 20 kΩ end-to-end resistance; identical pinout, timing, and feature set. | Better suited for low-impedance, high-bandwidth applications (310 kHz −3 dB bandwidth vs. 130 kHz at 50 kΩ). | Select when faster settling or lower wiper resistance (typ. 60 Ω) is required in active filter or fast-settling gain control. |
| AD5260BRUZ200-REEL7 | 200 kΩ end-to-end resistance; same package, interface, and tempco (35 ppm/°C). | Optimized for high-impedance bias networks and low-current references where 200 kΩ minimizes loading effects. | Choose for ultra-low quiescent current designs or when higher resolution per volt is needed in voltage divider topologies. |
Compared with AD5260BRUZ20-REEL7 and AD5260BRUZ200-REEL7, the AD5260BRUZ50-REEL7 offers balanced bandwidth (130 kHz), wiper resistance (typ. 90 Ω), and voltage coefficient-making it the default choice for general-purpose programmable gain, offset, and reference scaling where 50 kΩ matches standard op-amp feedback conventions.
Availability
AD5260BRUZ50-REEL7 is available at Aetrix Electronics and suitable for instrumentation gain control, stereo audio level adjustment, programmable voltage reference, and line impedance matching requiring stable component supply across industrial, medical, and test equipment programs.
Supply support for AD5260BRUZ50-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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA, with design centers worldwide and a legacy of precision signal chain innovation since 1965.
The AD5260 is part of Analog Devices' precision digital potentiometer product line, engineered specifically for replacing mechanical trimmers in high-reliability, temperature-stable analog adjustment applications across industrial, instrumentation, and medical systems.
FAQ
What is the maximum supply voltage rating for AD5260BRUZ50-REEL7?
The AD5260BRUZ50-REEL7 supports absolute maximum ratings of VDD to GND = −0.3 V to +17 V and VDD to VSS ≤ 17 V. Its specified operating range is +4.5 V to +16.5 V single-supply or ±4.5 V to ±5.5 V dual-supply. Exceeding +16.5 V or violating the |VDD| + |VSS| ≤ 15 V constraint risks permanent damage per Absolute Maximum Ratings Table 4.
Does AD5260BRUZ50-REEL7 retain its wiper position during shutdown?
Yes, AD5260BRUZ50-REEL7 retains its programmed resistance value in shutdown mode. When SHDN is asserted low, the A-terminal opens and W connects to B, but the internal RDAC latch maintains the last loaded 8-bit code. Upon exit from shutdown, the wiper immediately resumes the prior resistance setting without reinitialization.
Can AD5260BRUZ50-REEL7 operate with VL = 3.3 V while using VDD = +15 V?
Yes, AD5260BRUZ50-REEL7 supports VL = 2.7 V to 5.5 V independently of VDD/VSS. With VL = 3.3 V, digital inputs VIH and VIL thresholds adjust to 2.1 V and 0.6 V respectively, enabling direct interfacing to 3.3 V microcontrollers while maintaining full +15 V analog signal swing capability.
What is the wiper resistance specification for AD5260BRUZ50-REEL7?
The wiper resistance (RW) of AD5260BRUZ50-REEL7 is specified as 60 Ω minimum and 150 Ω maximum at TA = 25°C, measured with IW = 1 V/RAB. This low on-resistance minimizes insertion error in precision voltage dividers and ensures predictable gain accuracy in op-amp feedback networks.
Is AD5260BRUZ50-REEL7 pin-compatible with other members of the AD5260 family?
Yes, all AD5260 variants-including AD5260BRUZ20-REEL7, AD5260BRUZ50-REEL7, and AD5260BRUZ200-REEL7-share identical 14-lead TSSOP packaging and pinout. Resistance value differences do not affect physical or electrical compatibility; only the A–B terminal resistance changes between variants.
AD5260BRUZ50-REEL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 14-TSSOP (0.173", 4.40mm 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 ~ 16.5V, ±5V
- Features:
- Cascade Pin
- Tolerance:
- ±30%
- Temperature Coefficient (Typ):
- 35ppm/°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 14-TSSOP
- Operating Temperature:
- -40°C ~ 85°C
- Resistance - Wiper (Ohms) (Typ):
- 60
AD5260BRUZ50-REEL7 FAQ
1.How can I place an order for AD5260BRUZ50-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD5260BRUZ50-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 AD5260BRUZ50-REEL7 reliable?
The price and inventory of AD5260BRUZ50-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD5260BRUZ50-REEL7 is usually 5 days.
3.What payment methods are accepted for AD5260BRUZ50-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD5260BRUZ50-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD5260BRUZ50-REEL7?
AD5260BRUZ50-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD5260BRUZ50-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 AD5260BRUZ50-REEL7?
For technical support, including AD5260BRUZ50-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD5260BRUZ50-REEL7 requirements.
6.How does Aetrix verify that AD5260BRUZ50-REEL7 is sourced from the original manufacturer or authorized distributors?
All AD5260BRUZ50-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 AD5260BRUZ50-REEL7 meets industry standards.
7.What is the process for return or replacement of AD5260BRUZ50-REEL7?
All AD5260BRUZ50-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with AD5260BRUZ50-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 AD5260BRUZ50-REEL7 part is unused and in its original packaging.
Return procedure for AD5260BRUZ50-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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