X95820

Dual Digital Controlled Potentiometers (XDCP™); Low Noise/Low Power/2-Wire Bus/256 Taps

Product Status: 量産中

OVERVIEW

The X95820 integrates two digitally controlled potentiometers (XDCP) on a monolithic CMOS integrated circuit.

The digitally controlled potentiometers are 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. Each 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 two DCP's IVR to the corresponding WRs.

The DCPs can be used as three-terminal potentiometers or as two-terminal variable resistors in a wide variety of applications including control, parameter adjustments, and signal processing.

KEY FEATURES

  • Two potentiometers in one package
  • 256 resistor taps-0.4% resolution
  • I2C serial interface
  • Three address pins, up to eight devices/bus
  • 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: 150,000 data changes per bit per register
  • Register data retention: 50 years @ T ≤75°C
  • 14 Ld TSSOP
  • Pb-free plus anneal available (RoHS compliant)

PARAMETRICS

Parameters
X95820
Basic Information
Production Status
量産中
チャネル当たりのデバイス数
2
タップ数
256
メモリタイプ
Nonvolatile
バス/出力インタフェース
I2C
抵抗オプション (kΩ)
10, 50
電源電圧Vcc (V) (min)
2.7
電源電圧Vcc (V) (max)
5.5
電源電流Icc
5 µA
抵抗変化特性
Linear
VL端子電圧 (min)
0 V
VL端子電圧 (max)
5.5 V
ワイパ電流 (mA)
3
ワイパ抵抗 (Ω)
70
二電源範囲 (V)
N/A
最大動作温度
85 °C
エンドツーエンド温度係数 (ppm/øC)
45
中間点レシオメトリック温度係数
4
特長
Dual version of ISL95810
認定レベル
Standard
単一電源範囲 (V)
0 to 5.5
電源電圧Vcc範囲 (V)
2.7 to 5.5
CANサンプル
YES
温度範囲
-40 to +85

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