Overview
Description
The ISL22316 integrates a single digitally controlled potentiometer (DCP) and non-volatile memory on a monolithic CMOS integrated circuit. The digitally controlled potentiometer is implemented with a combination of resistor elements and CMOS switches. The position of the wipers is controlled by the user through the I2C bus interface. The potentiometer has an associated volatile wiper register (WR) and a non-volatile initial value register (IVR) that can be directly written to and read by the user. The contents of the WR control the position of the wiper. At power up, the device recalls the contents of the DCP's IVR to the WR. The DCP can be used as a three-terminal potentiometer or as a two-terminal variable resistor in a wide variety of applications including control, parameter adjustments, and signal processing.
Features
- 128 resistor taps
- I2C serial interface
- Two address pins, up to four devices/bus
- Non-volatile storage of wiper position
- Wiper resistance: 70Ω typical at 3.3V
- Shutdown mode
- Shutdown current 5µA max
- Power supply: 2.7V to 5.5V
- 50kΩ or 10kΩ total resistance
- High reliability
- Endurance: 1,000,000 data changes per bit per register
- Register data retention: 50 years at T ≤ 55 °C
- 10 Ld MSOP or 10 Ld TDFN package
- Pb-free (RoHS compliant)
Comparison
Applications
Design & Development
Software & Tools
Boards & Kits
Evaluation
RTKA-BDGSTKDBEVKIT1Z
Active
DAQ on a Stick with Honeywell Pressure Sensor Kit
The DAQ on a Stick with Honeywell Pressure Sensor uses Renesas' data acquisition (DAQ) on a stick reference design with Honeywell's NBP Series-Uncompensated/Unamplified 0psi to 30psi basic board mount pressure sensor. This demo shows a complete signal chain solution from the Honeywell sensor,...
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Evaluation
RTKA-BDGSTKEV2Z
Active
DAQ on a Stick Strain Gauge Kit
The DAQ on a Stick Renesas Strain Gauge is one of a series of reference designs highlighting Renesas' precision products with different microcontrollers. This reference design is a self-contained demo showing a complete signal chain solution using Renesas precision parts and a Renesas...
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Evaluation
RTKA-SEMITECRTDEVAZ
Active
DAQ on a Stick with Semitec RTD Temperature Sensor Kit
This reference design shows the operation of Renesas' precision products in a temperature sensor application. The application uses Renesas' data acquisition (DAQ) on a stick reference design that has been modified to work with a Semitec 103AP-2 RTD temperature sensor. The system operates over...
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Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.
Product Options
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