Digital Potentiometers (POTs) | CAT5269

数字电位计 (POT)，双路 256 抽头，带 I2C 接口

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概览

CAT5269 是两数字 POT，集成了控制逻辑和 18 字节的 NVRAM 内存。每个数字 POT 由一系列电阻元件组成，这些电阻元件联接在两个外部可访问的端点之间。每个电阻元件之间的抽头点通过 CMOS 开关连接到弧刷输出。一个单独的 8 位控制寄存器 (WCR) 独立控制每个数字 POT 的弧刷抽头开关。与每个弧刷控制寄存器相关联的是四个 8 位非易失性内存数据寄存器 (DR)，用于存储最多四个弧刷设置。通过 2 线串行总线写入弧刷控制寄存器或任何非易失性数据寄存器。通电时，四个电位计中的每个电位计的第一个数据寄存器 (DR0) 的内容自动加载到各自的弧刷控制寄存器中。CAT5269 可用作电位计或两端子可变电阻。它适用于各种应用中的电路电平或系统电平调整。它可以在 -40°C 到 85°C 的工业运行温度范围内使用。

  • Audio Equipment
  • Industrial Controls
  • Automobiles
  • Industrial Equipment
  • Two linear taper digital potentiometers
  • 256 resistor taps per potentiometer
  • End to end resistance 50 kΩ or 100 kΩ
  • Potentiometer control and memory access via 2-wire interface (I²C like)
  • Low wiper resistance, typically 100 Ω
  • Nonvolatile memory storage for up to four wiper settings for each potentiometer
  • Automatic recall of saved wiper settings at power up
  • 2.5 to 6.0 volt operation
  • Standby current less than 1 μA
  • 1,000,000 nonvolatile WRITE cycles
  • 100 year nonvolatile memory data retention
  • Industrial temperature range

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Package Type

Case Outline

MSL Type

MSL Temp (°C)

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ON Target

# of Pots

# of Taps

Type

Control Interface

Resistance Typ (kΩ)

VH Max (V)

Wiper Position Memory

VDD Max (V)

Reference Price

CAT5269YI-00-T2

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Obsolete

CAD Model

Pb

A

H

P

TSSOP-24

948AR

1

260

REEL

2000

N

2

256

Potentiometer

I2C

100

VCC

Yes

6

Price N/A

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