Features: • Solid-state potentiometer
• Up/Down interface
• 32 wiper tap points per potentiometer
- Wiper position stored in nonvolatile memory and recalled on power-up
• 31 resistive elements per potentiometer
- Temperature compensated
- Maximum resistance tolerance ±25%
- Terminal voltage, 0 to VCC
• Low power CMOS
- VCC = 5V±10%
- Active current, 200µA typ.
-Standby current, 2.0µA max
• High reliability
- Endurance 200,000 data changes per bit
- Register data retention, 100 years
• RTOTAL value = 50kΩ
• Packages
- 8 Ld MSOP
• Pb-free plus anneal available (RoHS compliant)
ApplicationElectronic digitally controlled (XDCP) potentiometers provide three powerful application advantages; (1) the variability and reliability of a solid-state potentiometer (2) the flexibility of computer-based digital controls, and (3) the retentivity of nonvolatile memory used for the storage of multiple potentiometer settings or data.
Pinout
SpecificationsTemperature under bias . . . . . . . . . . ...... .-65 to +135
Storage temperature . . . . . . . . . . . . . . . . .-65 to +150
Voltage on CS, INC, U/D, RH, RL and VCC
with respect to VSS . . . . . . . . . . . . . . . . . . . . . -1V to +6.5V
Lead temperature (soldering 10 seconds) . . . . . . . . . 300
Maximum reflow temperature (40 seconds). . . . . . . . 240
Maximum resistor current . . . . . . . . . . . . . . . . . . . . .. . 2mA
Temperature Range
Industrial. . . . . . . . . . . . . . . . . . . . . . . . . . .. .-40 to +85
Supply Voltage
VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5V ±10%(7)
CAUTION: Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to
the device. This is a stress rating only; the functional operation of the device (at these or any
other conditions above those listed in the operational sections of this specification) is not
implied. Exposure to absolute maximum rating conditions for extended periods may affect
device reliability.
DescriptionThe Intersil X93155 is a digitally controlled potentiometer (XDCP). The device consists of a resistor array, wiper switches, a control section, and nonvolatile memory. The wiper position is controlled by a 3-wire interface.
The X93155 potentiometer is implemented by a resistor array composed of 31 resistive elements and a wiper switching network. The position of the wiper element is controlled by the CS, U/D, andINC inputs. The position of the wiper can
be stored in nonvolatile memory and then be recalled upon a subsequent power-up operation.
The X93155 is connected as a two-terminal variable resistor and can be used in a wide variety of applications including:
- Bias and Gain Control
- LCD Contrast Adjustment
X93155 Data Sheet
