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Product Detailed Parameters
- Description：IC DGT POT 10KOHM 256TAP 24TSSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- 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
- Features：Cascade Pin
- Tolerance：±20%
- Temperature Coefficient (Typ)：500ppm/°C
- Mounting Type：Surface Mount
- Supplier Device Package：24-TSSOP
- Package / Case：24-TSSOP (0.173", 4.40mm Width)
- Operating Temperature：-40°C ~ 125°C
- Resistance - Wiper (Ohms) (Typ)：200
- Grade：-
- Qualification：-
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Overview
The AD8403ARUZ10-REEL is a quad-channel, 256-position digital potentiometer from Analog Devices. It features four independent variable resistors with a nominal end-to-end resistance of 10 kΩ and ±20% tolerance. The device operates on a single supply voltage ranging from 2.7 V to 5.5 V and supports an industrial temperature range of −40°C to +125°C. It utilizes a 3-wire SPI-compatible serial interface for data input, allowing programmable resistance adjustment between terminals A and W or B and W. The unit is housed in a 24-lead Thin Shrink Small Outline Package (TSSOP).
Feature Summary
- Quad-channel architecture with 256 tap positions per channel.
- Nominal resistance of 10 kΩ with ±1% channel-to-channel matching.
- SPI-compatible serial interface with daisy-chain capability via SDO pin.
- Power shutdown mode draws less than 5 μA current.
Applications
- Mechanical potentiometer replacement in space-constrained designs.
- Programmable filters, delays, and time constants.
- Volume control and panning adjustments.
- Line impedance matching circuits.
Procurement Notes
Verify the package type matches the 'U' suffix designation for TSSOP-24. Confirm the '10' suffix indicates the 10 kΩ resistance value. Check the 'REEL' suffix for tape and reel packaging requirements. Ensure the component meets RoHS compliance standards if required by the target application.
Selection Notes
Select this model when four independent digital potentiometers are required in a compact surface-mount footprint. The 10 kΩ resistance value offers a balance between power consumption and noise performance. Ensure the system voltage falls within the 2.7 V to 5.5 V range. Consider the volatile memory nature, requiring initialization upon power-up.
Part Context
This component belongs to the AD8400/AD8402/AD8403 family of digital potentiometers. While the AD8400 provides one channel and the AD8402 provides two, the AD8403 integrates four channels. The 'AR' prefix denotes the industrial temperature grade, and 'Z' indicates lead-free packaging.
Replacement Considerations
Direct replacements include other AD8403 variants with different resistance values (e.g., AD8403ARZ1K, AD8403ARZ50) or packages (e.g., AD8403ARZ). Cross-model substitution requires verifying channel count and pin compatibility.
