ISL22316WM

Single Digitally Controlled Potentiometer; Low Noise, Low Power I<sup>2</sup>C Bus, 128 Taps

OVERVIEW

The ISL22316WMUEP 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 I2 C 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 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.

Device Information
The specifications for an Enhanced Product (EP) device are defined in a Vendor Item Drawing (VID), which is controlled by the Defense Supply Center in Columbus (DSCC). "Hot-links" to the applicable VID and other supporting application information are provided on our website.

KEY FEATURES

  • Specifications per DSCC VID V62/08603-01XB
  • Full Mil-Temp Electrical Performance from -55°C to +125°C
  • Controlled Baseline with One Wafer Fabrication Site and One Assembly/Test Site
  • Full Homogeneous Lot Processing in Wafer Fab
  • No Combination of Wafer Fabrication Lots in Assembly
  • Full Traceability Through Assembly and Test by Date/Trace Code Assignment
  • Enhanced Process Change Notification
  • Enhanced Obsolescence Management
  • Eliminates Need for Up-Screening a COTS Component
  • 128 Resistor Taps
  • I2C Serial Interface
  • Two Address Pins, Up To Four Devices/Bus
  • Non-volatile Storage of Wiper Position
  • Wiper Resistance: 70Ω Typical @ 3.3V
  • Shutdown Mode
  • Shutdown Current 5µA Max
  • Power Supply: 2.7V to 5.5V
  • 10kΩ Total Resistance
  • High Reliability
  • Endurance: 1,000,000 Data Changes Per Bit Per Register
  • Register Data Retention:
  • 10 years @ T ≤ +125°C
  • 15 years @ T ≤ +90°C
  • 50 years @ T ≤ +55°C
  • 10 Ld MSOP

BLOCK DIAGRAM

 Block Diagram

PARAMETRICS

Parameters
ISL22316WM
Basic Information
Production Status
Mass Production
# of Devices/ Channels
1
# of Taps
128
Memory Type
Nonvolatile
Bus/Output Interface
I2C
Resistance Options (kΩ)
10
Supply Voltage Vcc (Min) (V)
2.7
Supply Voltage Vcc (Max) (V)
5.5
Supply Current Icc
5 µA
Resistance Taper
Linear
Wiper Current (mA)
3
Wiper Resistance (Ω)
70
Dual Supply Range (V)
N/A
Max Operating Temperature
125 °C
End-to-End Temperature Coefficient (ppm/øC)
50
Qualification Level
Standard
Single Supply Range (V)
0 to 5.5
Supply Voltage Vcc Range (V)
2.7 to 5.5
Temperature Range
-55 to +125

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