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ADS8284

不推薦在新設計中採用

具板載 ADC 驅動器 OPA 的 18 位元、1MSPS、4 通道、偽雙極差動 ADC

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ADS8284 不建議用於新設計
此產品將繼續向現有客戶提供。新設計應考量替代產品。
open-in-new 比較替代產品
功能相似於所比較的產品。
ADS8382 現行 具有參考和偽雙極全差分輸入的 18 位元 600KSPS 序列 ADC Lower sampling rate (600 kSPS)

ADS8284

不推薦在新設計中採用
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產品詳細資料

Resolution (Bits) 18 Sample rate (max) (ksps) 1000 Number of input channels 4 Interface type Parallel Architecture SAR Rating Catalog Reference mode External, Internal Operating temperature range (°C) -40 to 85 Analog supply voltage (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 SNR (dB) 97.5 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.25
Resolution (Bits) 18 Sample rate (max) (ksps) 1000 Number of input channels 4 Interface type Parallel Architecture SAR Rating Catalog Reference mode External, Internal Operating temperature range (°C) -40 to 85 Analog supply voltage (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 SNR (dB) 97.5 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.25
VQFN (RGC) 64 81 mm² (9 mm × 9 mm)
  • 1.0-MHz Sample Rate, Zero Latency at Full Speed
  • 18-Bit Resolution
  • Supports Pseudo-Bipolar Differential Input Range:
    -4 V to +4 V with 2-V Common-Mode
  • Built-In Four Channel, Differential Ended Multiplexer;
    with Channel Count Selection and Auto/Manual Mode
  • On-Board Differential ADC Driver (OPA)
  • Buffered Reference Output to Level Shift Bipolar
    ±4-V Input with External Resistance Divider
  • Reference/2 Output to Set Common-Mode for External
    Signal Conditioner
  • 18-/16-/8-Bit Parallel Interface
  • SNR: 98.4dB Typ at 2-kHz I/P
  • THD: –119dB Typ at 2-kHz I/P
  • Power Dissipation: 331.25 mW at 1 MSPS Including
    ADC Driver
  • Internal Reference
  • Internal Reference Buffer
  • 64-Pin QFN Package
  • 1.0-MHz Sample Rate, Zero Latency at Full Speed
  • 18-Bit Resolution
  • Supports Pseudo-Bipolar Differential Input Range:
    -4 V to +4 V with 2-V Common-Mode
  • Built-In Four Channel, Differential Ended Multiplexer;
    with Channel Count Selection and Auto/Manual Mode
  • On-Board Differential ADC Driver (OPA)
  • Buffered Reference Output to Level Shift Bipolar
    ±4-V Input with External Resistance Divider
  • Reference/2 Output to Set Common-Mode for External
    Signal Conditioner
  • 18-/16-/8-Bit Parallel Interface
  • SNR: 98.4dB Typ at 2-kHz I/P
  • THD: –119dB Typ at 2-kHz I/P
  • Power Dissipation: 331.25 mW at 1 MSPS Including
    ADC Driver
  • Internal Reference
  • Internal Reference Buffer
  • 64-Pin QFN Package

The ADS8284 is a high-performance analog system-on-chip (SoC) device with an 18-bit, 1-MSPS A/D converter, 4-V internal reference, an on-chip ADC driver (OPA), and a 4-channel differential multiplexer. The channel count of the multiplexer and auto/manual scan modes of the device are user selectable.

The ADC driver is designed to leverage the very high noise performance of the differential ADC at optimum power usage levels.

The ADS8284 outputs a buffered reference signal for level shifting of a ±4-V bipolar signal with an external resistance divider. A Vref/2 output signal is available to set the common-mode of a signal conditioning circuit. The device also includes an 18-/16-/8-bit parallel interface.

The ADS8284 is available in a 9 mm × 9 mm, 64-pin QFN package and is characterized from -40°C to 85°C.

For all available packages, see the orderable addendum at the end of the data sheet.

The ADS8284 is a high-performance analog system-on-chip (SoC) device with an 18-bit, 1-MSPS A/D converter, 4-V internal reference, an on-chip ADC driver (OPA), and a 4-channel differential multiplexer. The channel count of the multiplexer and auto/manual scan modes of the device are user selectable.

The ADC driver is designed to leverage the very high noise performance of the differential ADC at optimum power usage levels.

The ADS8284 outputs a buffered reference signal for level shifting of a ±4-V bipolar signal with an external resistance divider. A Vref/2 output signal is available to set the common-mode of a signal conditioning circuit. The device also includes an 18-/16-/8-bit parallel interface.

The ADS8284 is available in a 9 mm × 9 mm, 64-pin QFN package and is characterized from -40°C to 85°C.

For all available packages, see the orderable addendum at the end of the data sheet.
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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 18-Bit, 1-MSPS, Pseudo-Bipolar Differential SAR ADC with On-Chip ADC Driver (OP datasheet (Rev. A) 2014/4/23

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