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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：2
- Number of Taps：128
- 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 AD5122ABCPZ100-RL7 is a dual-channel, nonvolatile digital potentiometer featuring 128 tap positions and an I2C interface. It offers a nominal resistance of 100 kΩ with a maximum tolerance of ±8% and a temperature coefficient of 35 ppm/°C. The device supports single-supply operation from 2.3 V to 5.5 V and a logic supply range of 1.8 V to 5.5 V. Key electrical characteristics include a wiper current of ±6 mA, a bandwidth of 0.43 MHz at 100 kΩ, and a fast power-up time of less than 75 µs for EEPROM restoration.
Feature Summary
- Dual-channel architecture with 128-position resolution and nonvolatile EEPROM storage
- I2C-compatible serial interface supporting standard (100 kHz) and fast (400 kHz) modes
- Wide operating temperature range from −40°C to +125°C
- Linear gain setting mode via INDEP pin for independent string resistor programming
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 official documentation to confirm reel packaging specifications. Ensure the 100 kΩ resistance option matches the design requirements, as the family also includes 10 kΩ variants. Confirm that the LFCSP package dimensions align with the PCB footprint constraints.
Selection Notes
Select this component when dual-channel adjustment with persistent settings is required. The 100 kΩ value provides lower current drive capability compared to the 10 kΩ version; verify that the application current does not exceed the ±1.5 mA limit per terminal for the 100 kΩ variant. Ensure the system voltage remains within the 2.3 V to 5.5 V range for proper operation.
Part Context
This part belongs to the AD5122A/AD5142A family of dual-channel digital potentiometers. The AD5122A specifically denotes the 128-tap resolution model with I2C control, distinguishing it from the SPI-based AD5122 and the 256-tap AD5142A. The 'BCPZ' indicates the 16-lead LFCSP package with lead-free construction.
Replacement Considerations
The AD5122BRUZ10-RL7 serves as a parameter-equivalent alternative within the same family, offering identical functionality but with a 10 kΩ resistance value instead of 100 kΩ.
