Digital Potentiometers (POTs) | CAT5140

数字电位计 (POT)，256 抽头，带 I2C 接口和集成的 EEPROM

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CAT5140 是一款单沟道非易失性 256 抽头数字 POT。此数字 POT 由一组在两个外部可访问端点之间联接的等值电阻元件组成。每个电阻元件之间的抽头点可以选择通过内部 CMOS 开关联接更宽的输出，组成一个线性抽头电子电位计。CAT5140 包括一个易失性孤刷寄存器 (WR) 和一个用于孤刷位置的 8 位非易失性 EEPROM，以及 5 非附加的非易失性寄存器组成，用于通用数据存储。这些寄存器的编程通过 I2C 接口控制。通电时，孤刷位置将重置为非易失性内存寄存器 (IVR) 存储的最新值。CAT5140 基于 -40°C 至 +85°C 的工业温度范围运行。

  • Gain Adjustment and Line Impedance Matching
  • Automated Calibration
  • Contrast, Brightness and Volume Control
  • LCD Screen Adjustment

  • Instrumentation for Handheld, Portable Devices
  • Industrial Automation for Handheld, Portable Devices
  • Portable Games

  • 400 kHz I2C Compatible Interface
  • 256 Position Linear Taper Potentiometer
  • End-to-End Resistance = 50 kΩ / 100 kΩ
  • TCR = 100 ppm/°C (typical)
  • Standby Current = 2 µA (max)
  • Typical Wiper Resistance = 70 Ω @ 3.3 V
  • Operating Voltage = 2.5 V to 5.5 V
  • 6 Registers 8-bit Non-volatile EEPROM
  • 2,000,000 Data Write Stores
  • 100 Year Data Retention
  • 8-Lead MSOP Package
  • Pb-free RoHS Compliant: NiPdAu Plating

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CAT5140ZI-00-GT3

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Obsolete

CAD Model

Pb

A

H

P

MSOP8 3.0x3.0

1

260

REEL

3000

N

1

256

Potentiometer

I2C

100

VCC

Yes

5.5

Price N/A

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CAT5140ZI-50-GT3

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Last Shipments

CAD Model

Pb

A

H

P

MSOP8 3.0x3.0

1

260

REEL

3000

N

1

256

Potentiometer

I2C

50

VCC

Yes

5.5

Price N/A

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可靠性数据

Die Related Summary Data

Device: CAT5140ZI-00-GT3

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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