ISL22316

Features:

• 128 resistor taps
• I²C serial interface
- Two address pins, up to four devices/bus
• Non-volatile storage of wiper position
• Wiper resistance: 70 typical @ 3.3V
• Shutdown mode
• Shutdown current 5A max
• Power supply: 2.7V to 5.5V
• 50k or 10k total resistance
• High reliability
- Endurance: 1,000,000 data changes per bit per register
- Register data retention: 50 years @ T
• 10 Ld MSOP
• Pb-free plus anneal product (RoHS compliant)




Pinout






Specifications

Storage Temperature . . . . . . . . . . . . . . . . . . . . . .-65 to +150
Voltage at any Digital Interface Pin
with Respect to GND . . . . . . . . . . . . . . . . . . . . . -0.3V to V_CC+0.3
V_CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6V
Voltage at any DCP Pin with
Respect to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-0.3V to V_CC
Lead Temperature (Soldering, 10s) . . . . . . . . . . . . . . . . . . 300
IW (10s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±6mA
Latchup (Note 4) . . . . . . . . . . . . . . . . . Class II, Level B @ +125
ESD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5kV HBM
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1kV CDM




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 are 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 controls the position of the wiper. At power up the ISL22316 recalls the contents of the DCPs IVR to the WR. The DCP ISL22316 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.