AD8402ARZ50 Analog Devices Integrated Circuit (Small Outline Packages) In Stock
The AD8402ARZ50 is a dual-channel 50 kΩ digital potentiometer from Analog Devices, offering 256-position linear resistance control via a 3-wire SPI-compatible serial interface in a 14-pin SOIC package. It operates from a single 5 V supply or ±2.5 V dual supply and is widely used for programmable gain, offset, and attenuation circuits. Available from stock with worldwide shipping for industrial, audio, and instrumentation applications.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- AD8402ARZ50 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $3.1100(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual independent 50 kΩ channels with 256-position linear taper provide fine-grained resistance adjustment in one package
- 3-wire SPI-compatible serial interface enables easy daisy-chaining and microcontroller control without additional level shifters
- Single 5 V or dual ±2.5 V supply operation gives flexibility for both digital and split-supply analog signal chains
- 14-pin SOIC package with JEDEC R-PDSO-G14 footprint fits standard PCB assembly with minimal board area
Applications
The AD8402ARZ50 is commonly used in programmable gain amplifier (PGA) circuits, automatic gain control (AGC) loops, and digitally adjustable filter designs where software-controlled resistance trimming replaces manual potentiometers. It is well suited for audio signal processing, sensor bridge calibration, and instrumentation amplifier offset adjustment in test and measurement equipment. The dual-channel configuration also supports stereo volume control, differential signal attenuation, and balanced line driver networks in professional audio and communications hardware.
Specifications
| Pbfree Code | No |
| Manufacturer Package Code | R-14 |
| YTEOL | 10 |
| Additional Feature | IT CAN ALSO OPERATE FROM A 5V NOMINAL SUPPLY |
| Bandwidth-Nom | 0.125kHz |
| Control Interface | 3-WIRE SERIAL |
| Converter Type | DIGITAL POTENTIOMETER |
| JESD-30 Code | R-PDSO-G14 |
| JESD-609 Code | e3 |
| Number of Functions | 2 |
| Number of Positions | 256 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP14,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Resistance Law | LINEAR |
| Resistance Tolerance-Max | 2% |
| Resistor Terminal Voltage-Max | 5.5V |
| Supply Voltage-Nom | 3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Coefficient-Nom | 700ppm/°C |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Total Resistance-Nom | 50000Ω |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Taiwan |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the end-to-end resistance of the AD8402ARZ50?
The AD8402ARZ50 has a nominal end-to-end resistance of 50 kΩ, adjustable across 256 linear positions via the SPI interface. Each step changes the wiper resistance by approximately 195 Ω, allowing fine-grained resistance trimming for gain, offset, or attenuation control.
How many positions does the AD8402ARZ50 potentiometer support?
The AD8402ARZ50 supports 256 discrete wiper positions (8-bit resolution). The position is set by writing a single byte to each channel's data register over the 3-wire SPI interface, and the wiper position is retained as long as power is applied to the device.
What supply voltage does the AD8402ARZ50 require?
The AD8402ARZ50 operates from a single +5 V supply or from a dual ±2.5 V split supply, totaling 5 V. It can also operate from a nominal 5 V single supply as noted in its specifications, making it compatible with standard microcontroller and op-amp supply rails in mixed-signal designs.
What serial interface does the AD8402ARZ50 use?
The AD8402ARZ50 uses a 3-wire serial (SPI-compatible) interface for wiper position programming. Both channels can be loaded sequentially through the serial input with daisy-chain support, allowing multiple AD8402 devices to be controlled from a single SPI bus with minimal GPIO usage.
What are typical applications for the AD8402ARZ50?
Typical applications include programmable gain amplifiers, automatic gain control circuits, digitally controlled audio attenuation, sensor bridge null adjustment, and instrumentation amplifier offset calibration. The dual-channel design is particularly convenient for stereo audio volume control and differential signal path attenuation in communication equipment.
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Why Buy from FindMyChip
About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $6.7392 | $6.74 |
| 10+ | $4.9360 | $49.36 |
| 16+ | $4.4928 | $71.88 |
| 57+ | $4.1558 | $236.88 |
| 280+ | $3.8400 | $1075.20 |
| 500+ | $3.1100 | $1555.00 |
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