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ADS7890

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具有序列介面和內部電壓參考的 14 位元 1.25MSPS 單通道 SAR ADC

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ADS7890

最後一次購買
產品規格表 立即訂購

產品詳細資料

Resolution (Bits) 14 Sample rate (max) (ksps) 1250 Number of input channels 1 Interface type SPI Architecture SAR Input type Pseudo-Differential, Single-ended Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 2.6 Input voltage range (min) (V) 0 Features Oscillator Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 45 Analog supply voltage (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 SNR (dB) 78 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.25
Resolution (Bits) 14 Sample rate (max) (ksps) 1250 Number of input channels 1 Interface type SPI Architecture SAR Input type Pseudo-Differential, Single-ended Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 2.6 Input voltage range (min) (V) 0 Features Oscillator Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 45 Analog supply voltage (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 SNR (dB) 78 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.25
TQFP (PFB) 48 81 mm² 9 x 9
  • 1.25 MHz Sample Rate, 14-Bit Resolution
  • Zero Latency
  • Unipolar, Pseudo Differential Input, Range:
    • 0 V to 2.5 V
  • SPI™ Compatible Serial Interface
  • 77.5 dB SNR and –95 dB THD at 0.5 MHz I/P
  • Power Dissipation 45 mW at 1.25 MSPS
  • Nap Mode (10 mW Power Dissipation)
  • Power Down (10 µW)
  • Internal Reference
  • Internal Reference Buffer
  • 48-Pin TQFP Package
  • APPLICATIONS
    • Optical Networking (DWDM, MEMS Based Switching)
    • Spectrum Analyzers
    • High Speed Data Acquisition Systems
    • High Speed Close-Loop Systems
    • Telecommunication

SPI is a trademark of Motorola, Inc.
  • 1.25 MHz Sample Rate, 14-Bit Resolution
  • Zero Latency
  • Unipolar, Pseudo Differential Input, Range:
    • 0 V to 2.5 V
  • SPI™ Compatible Serial Interface
  • 77.5 dB SNR and –95 dB THD at 0.5 MHz I/P
  • Power Dissipation 45 mW at 1.25 MSPS
  • Nap Mode (10 mW Power Dissipation)
  • Power Down (10 µW)
  • Internal Reference
  • Internal Reference Buffer
  • 48-Pin TQFP Package
  • APPLICATIONS
    • Optical Networking (DWDM, MEMS Based Switching)
    • Spectrum Analyzers
    • High Speed Data Acquisition Systems
    • High Speed Close-Loop Systems
    • Telecommunication

SPI is a trademark of Motorola, Inc.

The ADS7890 is a 14-bit 1.25-MSPS A-to-D converter with 2.5-V internal reference. The device includes a capacitor based SAR A/D converter with inherent sample and hold. The device offers a 14-bit serial SPI or DSP compatible interface. The device has a pseudo-differential input stage.

The –IN swing of ±200 mV is useful to compensate for ground voltage mismatch between the ADC and sensor and also to cancel common-mode noise. The device operates at lower power when used at lower conversion rates because of the nap feature. The device is available in a 48-pin TQFP package.

The ADS7890 is a 14-bit 1.25-MSPS A-to-D converter with 2.5-V internal reference. The device includes a capacitor based SAR A/D converter with inherent sample and hold. The device offers a 14-bit serial SPI or DSP compatible interface. The device has a pseudo-differential input stage.

The –IN swing of ±200 mV is useful to compensate for ground voltage mismatch between the ADC and sensor and also to cancel common-mode noise. The device operates at lower power when used at lower conversion rates because of the nap feature. The device is available in a 48-pin TQFP package.
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* Data sheet ADS7890 14-Bit 1.25-MSPS Low-Power SAR Analog-to-Digital Converter datasheet 2003年 11月 3日

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內含資訊：
  • RoHS
  • REACH
  • 產品標記
  • 鉛塗層/球物料
  • MSL 等級/回焊峰值
  • MTBF/FIT 估算值
  • 材料內容
  • 認證摘要
  • 進行中的可靠性監測
內含資訊：
  • 晶圓廠位置
  • 組裝地點