Digital Potentiometers (POTs) | CAT5221

デジタル・ポテンショメータ (POT)、64 タップ、I2C インタフェース搭載

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CAD Model

Overview

CAT5221 は、2 つのデジタル POT を統合したもので、制御ロジックおよび 16 バイトの EEPROM メモリを備えています。各デジタル POT は、外部アクセス可能な 2 つの終端間に直列接続された 63 個の抵抗素子で構成されています。各抵抗素子間のタップ・ポイントは、CMOS スイッチでワイパ出力に接続されます。別体の 6 ビット・ワイパ制御レジスタ (WCR) で、各デジタル POT のワイパ・タップ・スイッチを個別に制御します。各ワイパ制御レジスタと連携する 4 つの 6 ビット不揮発性メモリ・データ・レジスタ (DR) により、ワイパ設定が最大 4 つまで保存されます。ワイパ制御レジスタや不揮発性データ・レジスタへの書き込みは、I²C シリアル・バスを介して行われます。電源投入時、4 つのポテンショメータそれぞれで、第 1 データ・レジスタ (DR0) の内容が、各ワイパ制御レジスタ (WCR) に自動でロードされます。CAT5221 は、ポテンショメータまたは 2 端子可変抵抗器として使用できます。幅広いアプリケーションの回路レベルまたはシステム・レベルでの調整を可能にします。

  • Audio Equipment
  • Industrial controls
  • Industrial Equipment
  • Automobiles
  • Two linear-taper digital potentiometers
  • 64 resistor taps per potentiometer
  • End to end resistance 2.5 kΩ, 10 kΩ, 50 kΩ or 100 kΩ
  • Potentiometer control and memory access via I²C interface
  • Low wiper resistance, typically 80 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 1.0 µA
  • 1,000,000 nonvolatile WRITE cycles
  • 100 year nonvolatile memory data retention
  • Industrial temperature ranges

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Package Type

Case Outline

MSL Type

MSL Temp (°C)

Container Type

Container Qty.

ON Target

# of Pots

# of Taps

Type

Control Interface

Resistance Typ (kΩ)

VH Max (V)

Wiper Position Memory

VDD Max (V)

Reference Price

CAT5221WI-00-T1

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Obsolete

CAD Model

Pb

A

H

P

SOIC-20W

751BJ

3

260

REEL

1000

N

2

64

Potentiometer

I2C

100

VCC

Yes

6

Price N/A

More Details

CAT5221WI-10-T1

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Last Shipments

CAD Model

Pb

A

H

P

SOIC-20W

751BJ

3

260

REEL

1000

N

2

64

Potentiometer

I2C

10

VCC

Yes

6

Price N/A

More Details

CAT5221WI-25-T1

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Obsolete

CAD Model

Pb

A

H

P

SOIC-20W

751BJ

3

260

REEL

1000

N

2

64

Potentiometer

I2C

2.5

VCC

Yes

6

Price N/A

More Details

CAT5221WI-50-T1

Loading...

Obsolete

CAD Model

Pb

A

H

P

SOIC-20W

751BJ

3

260

REEL

1000

N

2

64

Potentiometer

I2C

50

VCC

Yes

6

Price N/A

More Details

CAT5221YI-00-T2

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Obsolete

CAD Model

Pb

A

H

P

TSSOP-20

948AQ

1

260

REEL

2000

N

2

64

Potentiometer

I2C

100

VCC

Yes

6

Price N/A

More Details

CAT5221YI-10-T2

Loading...

Obsolete

CAD Model

Pb

A

H

P

TSSOP-20

948AQ

1

260

REEL

2000

N

2

64

Potentiometer

I2C

10

VCC

Yes

6

Price N/A

More Details

CAT5221YI-25-T2

Loading...

Obsolete

CAD Model

Pb

A

H

P

TSSOP-20

948AQ

1

260

REEL

2000

N

2

64

Potentiometer

I2C

2.5

VCC

Yes

6

Price N/A

More Details

CAT5221YI-50-T2

Loading...

Obsolete

CAD Model

Pb

A

H

P

TSSOP-20

948AQ

1

260

REEL

2000

N

2

64

Potentiometer

I2C

50

VCC

Yes

6

Price N/A

More Details

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