X9118

Dual Supply/Low Power/1024-Tap/2-Wire Bus Single Digitally-Controlled (XDCP™) Potentiometer

Product Status: 量産中

OVERVIEW

The X9118 is a single digitally controlled potentiometer (XDCP) on a monolithic CMOS integrated circuit.

The digital controlled potentiometer is implemented using 1023 resistive elements in a series array. Between each element are tap points connected to the wiper terminal through switches. The position of the wiper on the array is controlled by the user through the 2-wire bus interface. The potentiometer has associated with it a volatile Wiper Counter Register (WCR) and a four non-volatile Data Registers that can be directly written to and read by the user. The contents of the WCR controls the position of the wiper on the resistor array though the switches. Power-up recalls the contents of the default data register (DR0) to the WCR.

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

KEY FEATURES

  • 1024 resistor taps – 10-bit resolution
  • 2-wire serial interface for write, read and transfer operations of the potentiometer
  • Wiper resistance, 40Ω typical @ 5V
  • Four non-volatile data registers for each potentiometer
  • Non-volatile storage of multiple wiper positions
  • Power on recall: Loads saved wiper position on power-up
  • Standby current < 15µA Max
  • System VCC: 2.7V to 5.5V operation
  • Analog V+/V-: -5V to +5V
  • 100kΩ end-to-end resistance
  • Endurance: 100,000 data changes per bit per register
  • 100 years data retention
  • 14 Ld TSSOP
  • Low power CMOS
  • Pb-free (RoHS compliant)

PARAMETRICS

Parameters
X9118
Basic Information
Production Status
量産中
チャネル当たりのデバイス数
1
タップ数
1024
メモリタイプ
Nonvolatile
バス/出力インタフェース
2-Wire
抵抗オプション (kΩ)
100
電源電圧Vcc (V) (min)
2.7
電源電圧Vcc (V) (max)
5.5
電源電流Icc
3 µA
抵抗変化特性
Linear
VL端子電圧 (min)
-5.5 V
VL端子電圧 (max)
5.5 V
ワイパ電流 (mA)
3
ワイパ抵抗 (Ω)
40
二電源範囲 (V)
-2.7 to -5.5, +2.7 to +5.5
最大動作温度
85 °C
エンドツーエンド温度係数 (ppm/øC)
300
中間点レシオメトリック温度係数
20
認定レベル
Standard
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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