特性
- 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)
描述
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 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 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.
产品参数
| 属性 | 值 |
|---|---|
| Resistance Taper | Linear |
| Taps (#) | 256 |
| Resistance Options (kΩ) | 2.5, 50 |
| Channels (#) | 1 |
| Interface | I2C |
| Memory Type | Nonvolatile |
| Supply Voltage Vcc Range | 2.7 to 5.5, 2.7-5.5 |
| Supply Current Icc (µA) | 5 |
| Single Supply Voltage Range (V) | 0 - 5.5 |
| Wiper Current (mA) | 3 |
| Wiper Resistance (ohms) | 70 |
| VL Terminal Voltage (Min) (V) | 0 |
| VL Terminal Voltage (Max) (V) | 5.5 |
| End-to-End Temperature Coefficient (ppm/°C) | 45 |
| Middlepoint Ratiometric Tempco | 4 |
| Advanced Features | Same as ISL90810 with memory |
| Qualification Level | Standard |