ISL95810

Single Digitally Controlled Potentiometer (XDCP™)

Product Status: Mass Production

OVERVIEW

The ISL95810 integrates a digitally controlled potentiometer (XDCP) 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 wiper is 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 content 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 three-terminal potentiometer or as two-terminal variable resistor in a wide variety of applications including control, parameter adjustments, and signal processing.

KEY FEATURES

  • 256 resistor taps - 0.4% resolution
  • I2C serial interface
  • Wiper resistance: 70Ω typical @ 3.3V
  • Non-volatile storage of wiper position
  • Standby current 5µA max
  • Power supply: 2.7V to 5.5V
  • 50kΩ, 10kΩ total resistance
  • High reliability
  • Endurance: 200,000 data changes per bit per register
  • Register data retention: 50 years @ T ≤ +75°C
  • 8 Ld MSOP and 8 Ld TDFN packaging
  • Pb-free plus anneal available (RoHS compliant)

BLOCK DIAGRAM

 Block Diagram

PARAMETRICS

Parameters
ISL95810
Basic Information
Production Status
Mass Production
# of Devices/ Channels
1
# of Taps
256
Memory Type
Nonvolatile
Bus/Output Interface
I2C
Resistance Options (kΩ)
10, 50
Supply Voltage Vcc (Min) (V)
2.7
Supply Voltage Vcc (Max) (V)
5.5
Supply Current Icc
5 µA
Resistance Taper
Linear
VL Min. Terminal Voltage
0 V
VL Max. Terminal Voltage
5.5 V
Wiper Current (mA)
3
Wiper Resistance (Ω)
70
Dual Supply Range (V)
N/A
Max Operating Temperature
85 °C
End-to-End Temperature Coefficient (ppm/øC)
45
Middlepoint Ratiometric Tempco
4
Features
Same as ISL90810 with memory
Qualification Level
Standard
Single Supply Range (V)
0 to 5.5
Supply Voltage Vcc Range (V)
2.7 to 5.5
Can Sample
YES
Temperature Range
-40 to +85

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