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Home > Products > Integrated Circuits (ICs) > Data Acquisition - Digital Potentiometers > AD5242BRZ10
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AD5242BRZ10

In Stock 7773 pcs Reference Price(In US Dollars)
1+
$4.7282
Manufacturer Part Number:
AD5242BRZ10
Manufacturer / Brand
Analog Devices Inc.
Part of Description:
IC DGTL POT 10KOHM 256TAP 16SOIC
Datasheets:
AD5242BRZ10(1).pdfAD5242BRZ10(2).pdfAD5242BRZ10(3).pdfAD5242BRZ10(4).pdf
Lead Free Status / RoHS Status:
ROHS3 Compliant
Stock Condition:
New original, 7773 pcs Stock Available.
ECAD Model:
Ship From:
Hong Kong
Shipment Way:
DHL/Fedex/TNT/UPS

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Part Number AD5242BRZ10
Manufacturer / Brand Analog Devices Inc.
Stock Quantity 7773 pcs Stock
Category Integrated Circuits (ICs) > Data Acquisition - Digital Potentiometers
Description IC DGTL POT 10KOHM 256TAP 16SOIC
Lead Free Status / RoHS Status: ROHS3 Compliant
RFQ AD5242BRZ10 Datasheets AD5242BRZ10 Details PDF
AD5242BRZ10 Details PDF for FR.pdf
AD5242BRZ10 Details PDF for KR.pdf
AD5242BRZ10 Details PDF for IT.pdf
AD5242BRZ10 Details PDF for ES.pdf
AD5242BRZ10 Details PDF for DE.pdf
Voltage - Supply 2.7V ~ 5.5V, ±2.3V ~ 2.7V
Tolerance ±30%
Temperature Coefficient (Typ) 30ppm/°C
Taper Linear
Supplier Device Package 16-SOIC
Series -
Resistance - Wiper (Ohms) (Typ) 60
Resistance (Ohms) 10k
Package / Case 16-SOIC (0.154', 3.90mm Width)
Package Tube
Operating Temperature -40°C ~ 105°C
Number of Taps 256
Number of Circuits 2
Mounting Type Surface Mount
Memory Type Volatile
Interface I²C
Features Selectable Address
Configuration Potentiometer
Base Product Number AD5242

Packaging & ESD

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The packaging structure provides electrostatic protection based on Faraday cage principles.This helps protect sensitive components from static discharge during handling and transportation.


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AD5242BRZ10 Product Details:

The AD5242BRZ10 is a digital potentiometer manufactured by Analog Devices, Inc. (ADI), a leading provider of high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits (ICs). As a data acquisition component, this digital potentiometer is part of the AD5242 series and is designed to offer a versatile and reliable solution for a wide range of applications.

The AD5242BRZ10 features a 10kΩ resistance with a linear taper and 256 taps, providing precise and accurate control over the resistance value. This device is RoHS-compliant and comes in a 16-SOIC (Small Outline Integrated Circuit) package, which is a popular and compact surface-mount design. The operating temperature range of -40°C to 105°C ensures the device can withstand a wide variety of environmental conditions, making it suitable for use in various applications.

One of the key features of the AD5242BRZ10 is its selectable address, which allows multiple devices to be addressed on a common bus, enabling efficient system integration and optimization. This feature addresses the design challenge of managing multiple potentiometer devices within a single system, simplifying the overall system architecture and reducing complexity.

The device operates on a supply voltage range of 2.7V to 5.5V, or ±2.3V to ±2.7V, making it compatible with a variety of power supply configurations. The low resistance of the wiper, typically 60Ω, and the low temperature coefficient of 30 ppm/°C contribute to the device's high performance and reliability.

The AD5242BRZ10 is well-suited for a wide range of applications, including audio and video equipment, motor control systems, instrumentation and test equipment, and industrial automation and control systems. Its versatility and robust design make it an excellent choice for engineers and designers seeking a reliable and configurable digital potentiometer solution.

Regarding equivalent or alternative models, the AD5242 series from Analog Devices includes several variations, such as the AD5241 and AD5243, which offer different resistance values and tap configurations to cater to various application requirements. Additionally, digital potentiometers from other manufacturers, such as Microchip, Texas Instruments, and Maxim Integrated, may offer similar functionality and specifications, providing alternative options for designers and engineers.

AD5242BRZ10 Key Technical Attributes

Manufacturer Part Number: AD5242BRZ10

Manufacturer: ADI (Analog Devices, Inc.)

Digi-Key Part Number: AD5242BRZ10-ND

AD5242BRZ10 Packing Size

Type: Tube

Material: 16-SOIC (0.154", 3.90mm Width)

Pin Configuration: 16-SOIC

Thermal Characteristics: Operating Temperature -40°C ~ 105°C

Electrical Properties: Voltage - Supply: 2.7 V ~ 5.5 V, ±2.3 V ~ 2.7 V

AD5242BRZ10 Application

This digital potentiometer is ideal for applications requiring precise resistance adjustments in data acquisition and control systems. It seamlessly integrates into consumer electronics, automotive systems, and smart devices to automate and improve electronic adjustments.

AD5242BRZ10 Features

The AD5242BRZ10 features a digitally controlled potentiometer with 10k Ohm resistance and 256 taps. It provides inherent linear taper adjustments, supporting a dual-channel configuration. The device offers an interface IC, is made using volatile memory type technology, and operates within a wide voltage supply range. It has a typical wiper resistance of 60 Ohms and a temperature coefficient of 30 ppm/°C for consistent performance across varying temperatures.

AD5242BRZ10 Quality and Safety Features

The AD5242BRZ10 adheres to lead-free and RoHS compliance, ensuring it meets global environmental standards and supports safe usage in various electronics. The Moisture Sensitivity Level is rated at 1 (Unlimited), indicating a high resistance to moisture-induced damages during operation and storage.

AD5242BRZ10 Compatibility

This device supports an IC interface and dual voltage supply options, providing compatibility with a broad array of electronic circuits and systems. It is easy to integrate due to its standard 16-SOIC packaging and linear response characteristics.

AD5242BRZ10 Datasheet PDF

We have the most authoritative datasheet for the AD5242BRZ10 available on our website. Customers are highly recommended to download it from the current page to explore detailed specifications and application insights.

Quality Distributor

IC-Components is a premium distributor of Analog Devices, Inc. products, including the AD5242BRZ10. We assure the highest quality and reliability in delivering integrated circuits. Get a quote from us on our website to experience best-in-class service and supply.

Frequently Asked Questions

What are the key design considerations when replacing a mechanical potentiometer with the AD5242BRZ10 in a precision voltage divider application?
When substituting a mechanical potentiometer with the AD5242BRZ10, engineers must account for its 60 Ω typical wiper resistance, which introduces non-negligible error in low-resistance divider networks. Additionally, the ±30% resistance tolerance and 30 ppm/°C temperature coefficient require calibration or margin budgeting in high-accuracy systems. The volatile memory means the wiper position resets to midscale on power-up, so external initialization via I²C is necessary for deterministic startup behavior.
Can the AD5242BRZ10 be used in dual-supply (±2.5 V) systems, and what are the implications for signal swing and ground referencing?
Yes, the AD5242BRZ10 supports dual-supply operation from ±2.3 V to ±2.7 V, enabling bipolar signal handling. However, the analog terminals (A, B, W) must remain within the supply rails—exceeding them risks latch-up or damage. In dual-supply configurations, ensure the common-mode voltage of the connected circuitry stays within the valid range, and avoid floating grounds that could shift terminal potentials outside safe operating limits.
How does the selectable I²C address feature of the AD5242BRZ10 simplify board-level integration in multi-device systems?
The AD5242BRZ10 includes a hardware-addressable pin (A0) that allows two devices to share the same I²C bus with distinct addresses (0x2C or 0x2D), reducing GPIO overhead and eliminating the need for I²C multiplexers in designs requiring multiple digital pots. This is particularly useful in channel-dense applications like programmable gain amplifiers or bias trimming circuits where space and BOM count are constrained.
What are the reliability risks of using the AD5242BRZ10 in industrial environments operating near its 105°C maximum junction temperature?
Prolonged operation near 105°C accelerates electromigration and increases resistance drift due to the 30 ppm/°C tempco, potentially degrading long-term accuracy. While the MSL-1 rating ensures unlimited floor life, thermal cycling in industrial settings may stress bond wires and solder joints. Derating the operating temperature below 85°C and ensuring adequate PCB thermal relief improves MTBF, especially in enclosed or high-ambient-temperature enclosures.
Is the AD5242BRZ10 suitable for replacing the MCP4017T-103E/LT in a 3.3 V microcontroller-based calibration circuit, and what trade-offs should be considered?
The AD5242BRZ10 can replace the MCP4017T-103E/LT in 3.3 V systems, as both support 2.7–5.5 V operation and offer 10 kΩ resistance. However, the AD5242BRZ10 provides two independent circuits versus one, enabling more compact designs, but its 60 Ω wiper resistance is higher than the MCP4017’s ~50 Ω, affecting low-current divider accuracy. Additionally, the AD5242BRZ10’s volatile memory requires firmware initialization, unlike some non-volatile alternatives, adding software complexity.
What precautions are necessary when routing I²C signals to the AD5242BRZ10 in electrically noisy industrial environments?
In high-noise environments, use shielded twisted-pair wiring for SDA/SCL lines, place pull-up resistors close to the microcontroller, and limit trace length to reduce susceptibility to EMI. The AD5242BRZ10 lacks built-in I²C glitch filtering, so external RC filters (e.g., 100 Ω + 100 pF) may be needed. Ensure ground planes are solid beneath I²C traces and isolate analog and digital sections to prevent coupling that could corrupt communication or affect wiper positioning.
Can the AD5242BRZ10 be safely hot-swapped or power-cycled while the I²C bus is active, and what impact does this have on system behavior?
The AD5242BRZ10 is not designed for hot-swapping; applying power while the I²C bus is active can cause latch-up or erratic wiper states due to undefined input conditions. Always ensure the device is powered before or simultaneously with the I²C master. On power-up, the wiper defaults to code 128 (midscale), which may cause transient output shifts—implement a power-good signal or delay I²C communication until the system stabilizes to avoid unintended control actions.
How does the 256-tap resolution of the AD5242BRZ10 compare to lower-tap-count digital pots in terms of step size and monotonicity for audio or sensor calibration applications?
With 256 taps, the AD5242BRZ10 offers ~39 Ω per step (10 kΩ / 256), providing finer control than 64- or 128-tap alternatives, which is beneficial for precise sensor offset trimming or low-distortion audio volume control. The device is guaranteed monotonic, ensuring no missing codes during incremental adjustments—a critical requirement in closed-loop calibration systems where hysteresis or non-monotonic behavior could destabilize feedback loops.
What layout practices are recommended to minimize crosstalk between the two independent potentiometers in the AD5242BRZ10 when used in high-impedance signal paths?
To minimize crosstalk, separate the analog traces of the two potentiometers (e.g., Channel 1: A1/W1/B1 and Channel 2: A2/W2/B2) by at least 3× the trace width, avoid parallel routing over long distances, and use ground guards between them. Place decoupling capacitors (0.1 μF) close to the VDD pin, and keep high-speed digital lines (SCL, SDA) away from analog nodes. High-impedance nodes are especially vulnerable to capacitive coupling, so a solid ground plane beneath analog sections is essential.
Are there known compatibility issues when migrating from the AD5241BRZ10 to the AD5242BRZ10 in an existing I²C-controlled design?
Migrating from the single-channel AD5241BRZ10 to the dual-channel AD5242BRZ10 is generally straightforward due to pin and register compatibility, but the AD5242BRZ10 uses a different I²C address scheme—verify the A0 pin configuration to avoid bus conflicts. Both share the same 2.7–5.5 V supply range and 256-tap resolution, but the AD5242BRZ10’s second potentiometer requires additional firmware handling. Ensure the microcontroller can manage two independent wiper positions without timing conflicts during concurrent updates.

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AD5242BRZ10

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IC DGTL POT 10KOHM 256TAP 16SOIC

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