Digital Potentiometers (POTs) | CAT5171

数字电位计 (POT)，256 抽头，可兼容 I2C

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CAT5171 是一款 256 位线性抽头数字 POT，非常适合用于取代机械电位计和可变电阻。弧刷设置通过可兼容 I2C 的数字接口控制。通电时，弧刷处于中档位置，电源稳定后可随时重新定位。此器件可以通过编程将弧刷位置重置为中档，或在运行期间进入关断状态。地址输入引脚 AD0 支持两个器件连接同一 I2C 总线。CAT5171 的运行范围是 2.7 V 至 5.5 V，消耗电流低于 2µA。低运行电流加上小封装占位，使得 CAT5171 非常适合电池供电的便携式应用。CAT5171 作为引脚可替代 AD5245，在 -40°C 至 +85°C 工业温度范围内运行。

  • Potentiometer Replacement
  • Transducer Adjustment of Pressure, Temperature, Position, Chemical, and Optical Sensors
  • RF Amplifier Biasing
  • Gain Control and Offset Adjustment

  • Industrial Equipment

  • 256-position
  • End-to-End Resistance: 50 kΩ, 100 kΩ
  • I2C Compatible Interface
  • Power-on Preset to Midscale
  • Single Supply 2.7 V to 5.5 V
  • Low Temperature Coefficient 100 ppm/°C
  • Low Power, IDD 2 µA max
  • Wide Operating Temperature -40°C to +85°C

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CAT5171TBI-00GT3

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CAD Model

Pb

A

H

P

SOT-23-8

527AK

1

260

REEL

3000

N

1

256

Potentiometer

I2C

100

VCC

No

5.5

$0.6013

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CAT5171TBI-50GT3

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Active

CAD Model

Pb

A

H

P

SOT-23-8

527AK

1

260

REEL

3000

N

1

256

Potentiometer

I2C

50

VCC

No

5.5

$0.3516

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可靠性数据

Die Related Summary Data

Device: CAT5171TBI-00GT3

Equivalent to wafer fab process: CMOS SUB

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等效器件小时

平均故障间隔时间/平均无故障时间（按小时计算）

FITS

CMOS SUB

2

920154574

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Re-calculate Data

Data is based on the following assumptions.

Note: The temperature and confidence level may be adjusted to your requirements.

Disclaimer: A reliability FIT rate calculated using this tool shall not be used for any functional safety purpose. In case a raw FIT rate needs to be estimated for a component which is targeted to be used in a safety critical application (i.e. compliant to ISO 26262 standard) it should be calculated according to generic safety standards (IEC62380, IEC61709, SN29500, FIDES, etc.)

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