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Analog Devices Inc. AD5262BRU200-REEL7
- Part No.:
- AD5262BRU200-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Potentiometers
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AD5262BRU200-REEL7.pdf
- Description:
- IC DGT POT 200KOHM 256TP 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,844
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Product details
Overview
AD5262BRU200-REEL7 from Analog Devices is a dual-channel, 256-position, 200 kΩ digital potentiometer operating from 5 V to 15 V single supply or ±5.5 V dual supply. It functions as an electronically programmable rheostat or potentiometer divider with 35 ppm/°C temperature coefficient and SPI-compatible 4-wire interface. Used in precision gain/offset adjustment and stereo audio level control where mechanical potentiometer replacement is required.
For engineers reviewing the AD5262BRU200-REEL7 datasheet, AD5262BRU200-REEL7 pinout, AD5262BRU200-REEL7 application, or AD5262BRU200-REEL7 equivalent, key selection criteria include dual-channel independent programming, 200 kΩ end-to-end resistance, 15 V absolute maximum terminal voltage, midscale power-on reset, and TSSOP-16 package compatibility with industrial temperature range (−40°C to +85°C).
Technical Context
The AD5262BRU200-REEL7 implements two independent 256-step RDACs using CMOS switch-array architecture with ladder-based wiper positioning. Each channel features its own 9-bit serial register and address-decoded latch (A0 = 0 for RDAC1, A0 = 1 for RDAC2), enabling selective update without disturbing the other channel.
It supports both rheostat (A–W or B–W) and potentiometer divider (A–W–B) configurations with guaranteed monotonicity, ±½ LSB INL in divider mode, and 5 ppm/°C voltage-divider temperature coefficient at mid-scale. The device uses open-drain SDO for daisy-chaining and includes active-low SHDN and PR pins for shutdown and hardware midscale preset.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | Dual, independently programmable RDACs - enables stereo audio control or matched gain/offset tuning in differential circuits. |
| End-to-End Resistance | 200 kΩ ±30% - sets maximum current handling (±5 mA continuous) and defines resolution granularity in voltage divider applications. |
| Resolution | 8-bit (256 positions) - provides 0.39% step resolution; sufficient for 1% gain trimming and coarse DAC replacement. |
| Temperature Coefficient | 35 ppm/°C (resistor), 5 ppm/°C (voltage divider at mid-scale) - ensures stable ratio matching across −40°C to +85°C industrial range. |
| 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 12 V/15 V analog signal chains without level-shifting. |
| Interface | SPI-compatible 4-wire (CS, CLK, SDI, SDO), 25 MHz max clock - allows microcontroller direct connection with no protocol translation. |
| Settling Time | 5 μs to ±1 LSB (RAB = 20 kΩ) - enables fast reconfiguration in closed-loop calibration or dynamic filter tuning. |
Pinout & Package
AD5262BRU200-REEL7 is housed in a 16-lead thin shrink small-outline package (TSSOP) with 0.65 mm pitch, optimized for high-density PCB layouts and automated assembly. Thermal resistance θJA = 150°C/W enables operation at full rating in ambient up to +85°C without forced airflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (SDO) | Serial Data Output | Open-drain output requiring external pull-up; enables daisy-chaining multiple AD5262 devices without additional logic. |
| 2 (A1), 16 (A2) | Channel 1 & 2 Terminal A | Fixed end of resistor ladder; connects to high-side reference or signal source in potentiometer configuration. |
| 3 (W1), 15 (W2) | Channel 1 & 2 Wiper | Programmable tap point; delivers variable voltage/current based on digital code; low 60–150 Ω wiper resistance minimizes insertion loss. |
| 4 (B1), 14 (B2) | Channel 1 & 2 Terminal B | Fixed end of resistor ladder; typically grounded or connected to low-side reference; tied to W during shutdown. |
| 5 (VDD) | Positive Supply | Accepts 4.5–16.5 V; supports direct use in 12 V/15 V systems; sum |VDD| + |VSS| ≤ 15 V limits dual-supply operation. |
| 6 (SHDN) | Active-Low Shutdown | Puts A terminals in open-circuit state and connects W to B; reduces supply current to 5 μA while retaining latch settings. |
| 7 (CLK) | Serial Clock Input | Positive-edge triggered; 25 MHz max rate enables <400 ns per bit; requires clean transitions to avoid metastability. |
| 8 (SDI) | Serial Data Input | Accepts 9-bit word (A0 + D7–D0); MSB-first format; compatible with standard MCU SPI peripherals in 3-wire mode. |
| 9 (CS) | Chip Select | Active-low enable; rising edge latches last 9 bits into target RDAC register based on A0 address bit. |
| 10 (PR) | Active-Low Preset | Forces both RDAC latches to 0x80 (midscale); used for fail-safe recovery or manual recalibration without software intervention. |
| 11 (GND) | Ground Reference | Analog and digital ground common pin; requires low-impedance connection to minimize noise coupling into wiper path. |
| 12 (VSS) | Negative Supply | Supports −5 V operation; enables true bipolar signal handling (e.g., ±5 V op-amp interfaces) when paired with VDD = +5 V. |
| 13 (VL) | Logic Supply | 2.7–5.5 V input; must match host MCU I/O voltage; powers internal logic and defines VIH/VIL thresholds (2.4 V/0.8 V @ 5 V). |
Key Features
| Feature | Design Value |
|---|---|
| 200 kΩ End-to-End Resistance | Enables high-impedance bias networks and low-current sensor interfaces while maintaining >100 kΩ minimum step resistance for stable DAC-like operation. |
| Independent Dual-Channel Control | Allows simultaneous but non-interfering adjustment of two signal paths - critical for balanced audio, differential amplifiers, or dual-sensor conditioning. |
| Midscale Power-On Reset | Guarantees known 50% resistance state at startup without firmware initialization - eliminates undefined output transients in safety-critical systems. |
| 15 V Absolute Maximum Terminal Voltage | Permits direct use in industrial 12 V/15 V analog front-ends without external voltage clamping or level-shifting circuitry. |
| Low 5 ppm/°C Voltage-Divider Tempco | Maintains precise division ratio stability over temperature - essential for calibrated measurement systems and reference scaling applications. |
| Daisy-Chainable SPI Interface | Reduces GPIO count and simplifies firmware by cascading multiple AD5262BRU200-REEL7 units on one SPI bus with minimal external components. |
Applications
| Instrumentation Gain Calibration | Stereo Audio Level Control |
|---|---|
|
Use Scenario: Precision DC gain adjustment in programmable gain instrumentation amplifiers for sensor signal conditioning. IC Role / Device Role / Timing Role: Two-terminal rheostat (A–W) in feedback path of op-amp; digitally sets closed-loop gain without mechanical drift. Use Value: 200 kΩ resistance and 35 ppm/°C tempco ensure <0.1% gain error over −40°C to +85°C; eliminates manual trimmer replacement. |
Use Scenario: Independent left/right channel volume control in professional audio mixing consoles with digital recall capability. IC Role / Device Role / Timing Role: Potentiometer divider (A–W–B) per channel; wiper feeds op-amp inverting input to attenuate line-level signals. Use Value: Dual-channel independence and 5 μs settling allow synchronized mute/fade transitions; 256 steps provide smooth 0.4 dB/step resolution. |
| Programmable Voltage Reference | Line Impedance Matching |
|
Use Scenario: Generating stable, software-adjustable reference voltages for ADCs or comparators in multi-range data acquisition systems. IC Role / Device Role / Timing Role: Potentiometer divider with fixed VA = VREF, VB = GND; VW supplies adjustable reference to downstream ICs. Use Value: 5 ppm/°C voltage-divider tempco ensures reference stability better than 10 ppm total error over temperature; replaces discrete resistor networks. |
Use Scenario: Dynamic impedance matching of RF or high-speed digital transmission lines to minimize reflections under varying load conditions. IC Role / Device Role / Timing Role: Rheostat (A–W) placed in series with driver output; resistance tuned to match characteristic impedance (e.g., 50 Ω, 75 Ω). Use Value: 200 kΩ max resistance supports wide matching range; 15 V rating allows use with high-voltage line drivers; SPI interface enables real-time adaptation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5262BRU50-REEL7 | Same dual-channel architecture and pinout, but 50 kΩ end-to-end resistance and higher 130 kHz −3 dB bandwidth (vs. 30 kHz at 200 kΩ). | Better suited for higher-frequency AC signal adjustment (e.g., programmable filters) where lower resistance reduces RC time constants. | Select when bandwidth >100 kHz or current drive >±10 mA is required; not drop-in due to resistance mismatch in voltage-divider designs. |
| MAX5487ETE+ | Single-channel, 100 kΩ, I²C interface, 2.7–5.5 V supply only; lacks dual supply support and 15 V rating. | Targeted at low-voltage embedded systems (e.g., battery-powered IoT sensors); no bipolar operation capability. | Choose for space-constrained, low-power designs with I²C infrastructure; unsuitable for 12 V/15 V analog signal chains or dual-supply op-amps. |
Compared with AD5262BRU50-REEL7 and MAX5487ETE+, the AD5262BRU200-REEL7 uniquely supports 15 V operation, dual-supply analog interfacing, and high-impedance voltage scaling - making it optimal for industrial instrumentation and legacy 12 V/15 V equipment upgrades.
Availability
AD5262BRU200-REEL7 is available at Aetrix Electronics and suitable for instrumentation gain calibration, stereo audio level control, programmable voltage reference generation, and line impedance matching requiring stable component supply across extended temperature and voltage ranges.
Supply support for AD5262BRU200-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.
The AD526x family was designed specifically for robust, high-voltage digital potentiometer replacement in industrial, test & measurement, and audio systems - emphasizing wide supply range, low tempco, and reliable SPI interfacing.
FAQ
What is the maximum supply voltage the AD5262BRU200-REEL7 can withstand?
The AD5262BRU200-REEL7 supports a single-supply range up to 16.5 V (absolute maximum VDD to GND = +17 V) and dual-supply operation up to ±5.5 V. Its resistor terminals tolerate voltages between VSS and VDD, enabling direct use in 12 V and 15 V analog signal paths without external protection. Exceeding these limits risks permanent damage per Absolute Maximum Ratings table.
Does the AD5262BRU200-REEL7 retain its wiper position after power cycling?
Yes - the AD5262BRU200-REEL7 retains its programmed wiper position in volatile latch memory across power cycles. However, it defaults to midscale (0x80) at power-on due to internal power-on reset circuitry tied to the VL pin. To preserve custom settings across power loss, external nonvolatile storage and firmware reload are required.
Can the AD5262BRU200-REEL7 operate with a 3.3 V logic supply while using a 15 V analog supply?
Yes - the VL pin accepts 2.7 V to 5.5 V independently of VDD/VSS. With VL = 3.3 V, the AD5262BRU200-REEL7 accepts 3.3 V logic levels (VIH = 2.1 V min, VIL = 0.6 V max) while driving 15 V analog signals between A, W, and B terminals. This enables seamless interfacing with 3.3 V microcontrollers in high-voltage analog systems.
How does the AD5262BRU200-REEL7 handle crosstalk between its two channels?
The AD5262BRU200-REEL7 specifies −64 dB analog crosstalk (CTA) between channels at 10 kHz with 20 kΩ/200 kΩ RAB. This means a full-scale 5 Vp-p signal on one wiper induces <100 μVp-p interference on the adjacent channel's wiper - sufficient for most audio and instrumentation applications where channel isolation >60 dB is acceptable.
Is the AD5262BRU200-REEL7 suitable for use as a programmable current source?
Yes - configured as a rheostat (A–W) with fixed voltage across A–B, the AD5262BRU200-REEL7 delivers programmable current IW = VAB/RWB. At 200 kΩ and ±5 V, max current is ±25 μA; at mid-scale (100 kΩ), it provides 50 μA/V resolution. Its 35 ppm/°C tempco ensures stable current setting over temperature, validated in "Programmable 4 mA-to-20 mA Current Source" application note.
AD5262BRU200-REEL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Taper:
- Linear
- Configuration:
- Potentiometer
- Number of Circuits:
- 2
- Number of Taps:
- 256
- Resistance (Ohms):
- 200k
- 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:
- 16-TSSOP
- Operating Temperature:
- -40°C ~ 85°C
- Resistance - Wiper (Ohms) (Typ):
- 60
AD5262BRU200-REEL7 FAQ
1.How can I place an order for AD5262BRU200-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD5262BRU200-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 AD5262BRU200-REEL7 reliable?
The price and inventory of AD5262BRU200-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD5262BRU200-REEL7 is usually 5 days.
3.What payment methods are accepted for AD5262BRU200-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD5262BRU200-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD5262BRU200-REEL7?
AD5262BRU200-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD5262BRU200-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 AD5262BRU200-REEL7?
For technical support, including AD5262BRU200-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD5262BRU200-REEL7 requirements.
6.How does Aetrix verify that AD5262BRU200-REEL7 is sourced from the original manufacturer or authorized distributors?
All AD5262BRU200-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 AD5262BRU200-REEL7 meets industry standards.
7.What is the process for return or replacement of AD5262BRU200-REEL7?
All AD5262BRU200-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with AD5262BRU200-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 AD5262BRU200-REEL7 part is unused and in its original packaging.
Return procedure for AD5262BRU200-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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