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Product Detailed Parameters
- Description：IC DGTL POT 100KOHM 16LFCSP
- 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)：100k
- Interface：I2C
- Memory Type：Non-Volatile
- Voltage - Supply：2.3V ~ 5.5V, ±2.25V ~ 2.75V
- Features：Selectable Address
- Tolerance：±8%
- Temperature Coefficient (Typ)：35ppm/°C
- Mounting Type：Surface Mount
- Supplier Device Package：16-LFCSP (3x3)
- Package / Case：16-WFQFN Exposed Pad, CSP
- Operating Temperature：-40°C ~ 125°C
- Resistance - Wiper (Ohms) (Typ)：130
- Grade：-
- Qualification：-
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Overview
The AD5143BCPZ100-RL7 is a quad-channel, nonvolatile digital potentiometer featuring 256-position resolution and an I2C interface. It offers a nominal resistance of 100 kΩ with ±8% tolerance and a temperature coefficient of 35 ppm/°C. The device supports single (2.3 V to 5.5 V) or dual-supply operation, drawing 700 nA at 5.5 V. It includes EEPROM for wiper position retention, operates from −40°C to +125°C, and is housed in a 16-lead LFCSP package.
Feature Summary
- Quad-channel architecture with 256-tap resolution and nonvolatile EEPROM storage
- I2C-compatible serial interface supporting standard (100 kHz) and fast (400 kHz) modes
- Wide bandwidth up to 3 MHz and low total harmonic distortion (-90 dB)
- Linear gain setting mode for precise resistor matching between channels
Applications
- Portable electronics level adjustment
- LCD panel brightness and contrast controls
- Programmable filters, delays, and time constants
- Programmable power supplies
Procurement Notes
Verify the specific suffix 'RL7' against the manufacturer's ordering guide to confirm reel packaging specifications. Confirm that the 'B' grade designation aligns with required performance tolerances. Ensure ESD precautions are observed during handling due to the sensitivity of the CMOS input structure.
Selection Notes
Select this component when four independent variable resistors are required in a compact footprint. The 100 kΩ value suits applications needing higher impedance than the 10 kΩ variant. Verify that the I2C address configuration via the ADDR pin meets system bus requirements. Ensure supply voltage remains within the 2.3 V to 5.5 V range for optimal linearity.
Part Context
This part belongs to the AD5123/AD5143 family of nonvolatile digital potentiometers. It shares the same physical package and core architecture as the AD5123 but provides 256 positions instead of 128. It differs from SPI variants like the AD5144 by utilizing only the I2C interface for control.
Replacement Considerations
Direct functional substitutes include the AD5123BCPZ100-RL7 for reduced resolution needs or the AD5144BCPZ100-RL7 if SPI compatibility is required. Cross-model replacements must account for differences in channel count and interface protocols.
