Digital Potentiometers (POTs) | CAT5172

数字电位计 (POT)，256 抽头，可兼容 SPI

Obsolete

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概览

CAT5172 是一款 256 位线性锥化数字 POT，适用于替代机械电位计和可变电阻。与机械电位计一样，CAT5172 具有电阻元件，可跨越 VCC 到接地，或者在电源轨之间的任何位置浮动。弧刷设置通过可兼容 SPI 的数字接口进行控制。通电后，弧刷采用中间范围位置，可在电源稳定之后任何时间重新定位。CAT5172 运行电压为 2.7 V 至 5.5 V，消耗电流不到 2 µA。这种低运行电流，结合小封装占位，使得 CAT5172 适用于电池供电的便携式设备。

  • 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
  • SPI 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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Reference Price

CAT5172TBI-50GT3

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Obsolete

CAD Model

Pb

A

H

P

SOT-23-8

527AK

1

260

REEL

3000

N

1

256

Potentiometer

SPI

50

VCC

No

5.5

Price N/A

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可靠性数据

Die Related Summary Data

Device: CAT5172TBI-50GT3

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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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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