DS1267

±5Vデュアルデジタルポテンショメータチップ

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ステータス 製品のステータスコードについての説明

入手可能:生産中

製品概要

The DS1267 has two 256-position potentiometers, with wiper positions each set by stored 8-bit values. The DS1267 communicates through a 3-wire serial port interface that drives an internal control logic unit. Multiple DS1267s can be linked or daisy-chained for control by a single processor.

Digital potentiometers improve upon mechanical devices with processor control and programmability, greater reliability and accuracy, and packaging options that facilitate automatic assembly. This digital potentiometer offers extremely low-power use and reliable, accurate performance throughout the industrial temperature range.

The DS1267 is ideal for controlling the incoming signal levels in modems and for level adjustment and control of RF and audio signals in cellular telephones. Digital potentiometers are also used for battery charging and control circuitry, tuning and calibration, offset trimming of operational amplifiers, gain control, and power supply regulation.
 

データシート

英語 このデータシートをPDF形式でダウンロードするダウンロードする Rev 1 (PDF, 328kB)
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主な特長

  • Two 256-step (or 8-bit) digital potentiometers
  • Stacking configures device as one 512-step (or 9-bit) digital potentiometer
  • Wipers digitally set and read through serial port
  • Ultra low-power consumption, quiet, pumpless design
  • 3-wire serial control interface
  • Operating ranges:
    • Single +5V or ±5V supplies
    • -40°C to +85°C
 

アプリケーション/用途

  • アプリケーション
  • 光ファイバトランシーバモジュール
  • 携帯電話およびPDA
  • ポータブル電子機器
  • 電源キャリブレーション
  • 無線チューナ
  • 8 & 9ビットDAC機能の代替
  • メカニカルポテンショメータの代替
  • RFトランシーバ
   

主な仕様:

Digital Potentiometers
Part Number Taper POTs Control Interface Wiper Memory Steps REND-TO-END
(kΩ)
Res. Tol.
(%)
Temp. Coeff.
(ppm/°C)
Wiper Resistance
(Ω)
ICC @5V
(µA)
Smallest Available Pckg.
(mm2)
Budgetary Price
typ typ max max w/pins See Notes
DS1267  Linear 2 3-Wire Serial Volatile 256
10
50
100
20 750 400 22 45.2 $3.57 @1k
全Digital Potentiometers (126)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.


DS1267:ブロックダイアグラム
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情報インデックス

Rev 1; 1999-10-21
このページの最終更新日: 2009-10-26




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