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TPL8002-25

アクティブ

Tandem 64 タップ、デジタル ポテンショメータ (デジポット)

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データシート

TPL8002-25

アクティブ
データシート ご注文はこちら

製品詳細

Number of steps 64 Number of channels 2 End-to-end resistance (typ) (Ω) 2500 Resistance taper Log End-to-end resistance tolerance (max) (%) 30 Interface type Parallel Memory Volatile Bandwidth (MHz) 8 Wiper resistance (typ) (Ω) 420 Operating temperature range (°C) -40 to 85 Rating Catalog
Number of steps 64 Number of channels 2 End-to-end resistance (typ) (Ω) 2500 Resistance taper Log End-to-end resistance tolerance (max) (%) 30 Interface type Parallel Memory Volatile Bandwidth (MHz) 8 Wiper resistance (typ) (Ω) 420 Operating temperature range (°C) -40 to 85 Rating Catalog
TSSOP (PW) 16 32 mm² (5 mm × 6.4 mm)
  • Adjustable Gain From 23.25 dB to –24 dB
  • 64-Tap Positions With 0.75 dB Per Step
  • Supports 8-MHz Analog Bandwidth
  • Operating Range up to –4-V VEE/+4-V VDD
  • 100-µA Maximum Static Supply Current
  • ±30% End-to-End Resistance Tolerance
  • Absolute Tolerance of ±0.3 dB
  • Operating Temperature Range From
    –40°C to 85°C
  • ESD Performance Tested Per JESD 22
    • 2000-V Human-Body Model
      (A114-B,Class II)
  • APPLICATIONS
    • Tandem Adjustable Feedback and Gain
      Resistors for Operational Amplifers
  • Adjustable Gain From 23.25 dB to –24 dB
  • 64-Tap Positions With 0.75 dB Per Step
  • Supports 8-MHz Analog Bandwidth
  • Operating Range up to –4-V VEE/+4-V VDD
  • 100-µA Maximum Static Supply Current
  • ±30% End-to-End Resistance Tolerance
  • Absolute Tolerance of ±0.3 dB
  • Operating Temperature Range From
    –40°C to 85°C
  • ESD Performance Tested Per JESD 22
    • 2000-V Human-Body Model
      (A114-B,Class II)
  • APPLICATIONS
    • Tandem Adjustable Feedback and Gain
      Resistors for Operational Amplifers

The TPL8002-25 is a programmable resistor device implementing two digital potentiometers with 64 wiper positions each that are tandem controlled through a 6-bit parallel interface. The device has fixed wiper resistances at the respective wiper contacts that tap the potentiometer resistors at a point determined by the binary code present at its digital inputs.

The resistive wiper tap terminals, RSW, of the TPL8002-25 are typically connected to the inverting inputs (–) of an external differential path inverting operational amplifier configuration, with the non-inverting inputs (+) connected through to ground. The application’s differential input to the configuration is the device’s RG terminals. The differential output of the external operational amplifiers is connected to the device’s RF terminals, and thus becomes the differential output of the application configuration.

The resistance between the wiper contacts and the end points RG and RF of the TPL8002-25 provides a logarithmic gain/attenuation response of the configuration. With a digital code of decimal 0 (b000000) the configuration has an inverting maximum attenuation of –24 dB. With a digital code of decimal 32 (b100000) the configuration has inverting unity gain of 0.00 dB. With a digital code of decimal 63 (b111111) the configuration has an inverting maximum gain of +23.25 dB. The response of the configuration with respect to the digital code varies in fixed steps of 0.75 dB.

The TPL8002-25 is a programmable resistor device implementing two digital potentiometers with 64 wiper positions each that are tandem controlled through a 6-bit parallel interface. The device has fixed wiper resistances at the respective wiper contacts that tap the potentiometer resistors at a point determined by the binary code present at its digital inputs.

The resistive wiper tap terminals, RSW, of the TPL8002-25 are typically connected to the inverting inputs (–) of an external differential path inverting operational amplifier configuration, with the non-inverting inputs (+) connected through to ground. The application’s differential input to the configuration is the device’s RG terminals. The differential output of the external operational amplifiers is connected to the device’s RF terminals, and thus becomes the differential output of the application configuration.

The resistance between the wiper contacts and the end points RG and RF of the TPL8002-25 provides a logarithmic gain/attenuation response of the configuration. With a digital code of decimal 0 (b000000) the configuration has an inverting maximum attenuation of –24 dB. With a digital code of decimal 32 (b100000) the configuration has inverting unity gain of 0.00 dB. With a digital code of decimal 63 (b111111) the configuration has an inverting maximum gain of +23.25 dB. The response of the configuration with respect to the digital code varies in fixed steps of 0.75 dB.
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上位の文書 タイプ タイトル フォーマットオプション 最新の英語版をダウンロード 日付
* データシート Tandem 64 Tap Digital Potentiometer データシート 2009/08/17
アプリケーション概要 Replacing Digital Potentiometers with Precision DACs 2019/07/03

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