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ADS8345

現行

具有全差分輸入的 16 位元、100-kSPS、8 通道 SAR ADC

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產品規格表

ADS8345

現行
立即訂購

產品詳細資料

Resolution (Bits) 16 Sample rate (max) (ksps) 100 Number of input channels 8 Interface type SPI Architecture SAR Input type Differential Multichannel configuration Multiplexed Rating Catalog Reference mode External Input voltage range (max) (V) 2.6 Input voltage range (min) (V) 0 Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 3.2 Analog supply voltage (min) (V) 2.7 Analog supply voltage (max) (V) 5.25 SNR (dB) 85.5 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.25
Resolution (Bits) 16 Sample rate (max) (ksps) 100 Number of input channels 8 Interface type SPI Architecture SAR Input type Differential Multichannel configuration Multiplexed Rating Catalog Reference mode External Input voltage range (max) (V) 2.6 Input voltage range (min) (V) 0 Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 3.2 Analog supply voltage (min) (V) 2.7 Analog supply voltage (max) (V) 5.25 SNR (dB) 85.5 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.25
SSOP (DB) 20 56.16 mm² (7.2 mm × 7.8 mm) SSOP (DBQ) 20 51.9 mm² (8.65 mm × 6 mm)
  • BIPOLAR INPUT RANGE
  • PIN-FOR-PIN COMPATIBLE WITH THE ADS7844 AND ADS8344
  • SINGLE SUPPLY: 2.7V to 5V
  • 8-CHANNEL SINGLE-ENDED OR 4-CHANNEL DIFFERENTIAL INPUT
  • UP TO 100kHz CONVERSION RATE
  • 85dB SINAD
  • SERIAL INTERFACE
  • QSOP-20 AND SSOP-20 PACKAGES
  • APPLICATIONS
    • DATA ACQUISITION
    • TEST AND MEASUREMENT EQUIPMENT
    • INDUSTRIAL PROCESS CONTROL
    • PERSONAL DIGITAL ASSISTANTS
    • BATTERY-POWERED SYSTEMS
  • BIPOLAR INPUT RANGE
  • PIN-FOR-PIN COMPATIBLE WITH THE ADS7844 AND ADS8344
  • SINGLE SUPPLY: 2.7V to 5V
  • 8-CHANNEL SINGLE-ENDED OR 4-CHANNEL DIFFERENTIAL INPUT
  • UP TO 100kHz CONVERSION RATE
  • 85dB SINAD
  • SERIAL INTERFACE
  • QSOP-20 AND SSOP-20 PACKAGES
  • APPLICATIONS
    • DATA ACQUISITION
    • TEST AND MEASUREMENT EQUIPMENT
    • INDUSTRIAL PROCESS CONTROL
    • PERSONAL DIGITAL ASSISTANTS
    • BATTERY-POWERED SYSTEMS

The ADS8345 is an 8-channel, 16-bit, sampling Analog-to-Digital (A/D) converter with a synchronous serial interface. Typical power dissipation is 8mW at a 100kHz throughput rate and a +5V supply. The reference voltage (VREF) can be varied between 500mV and VCC/2, providing a corresponding input voltage range of ±VREF. The device includes a shutdown mode which reduces power dissipation to under 15µW. The ADS8345 is ensured down to 2.7V operation.

Low-power, high-speed, and an onboard multiplexer make the ADS8345 ideal for battery-operated systems such as personal digital assistants, portable multi-channel data loggers, and measurement equipment. The serial interface also provides low-cost isolation for remote data acquisition. The ADS8345 is available in a QSOP-20 or SSOP-20 package and is ensured over the –40°C to +85°C temperature range.

The ADS8345 is an 8-channel, 16-bit, sampling Analog-to-Digital (A/D) converter with a synchronous serial interface. Typical power dissipation is 8mW at a 100kHz throughput rate and a +5V supply. The reference voltage (VREF) can be varied between 500mV and VCC/2, providing a corresponding input voltage range of ±VREF. The device includes a shutdown mode which reduces power dissipation to under 15µW. The ADS8345 is ensured down to 2.7V operation.

Low-power, high-speed, and an onboard multiplexer make the ADS8345 ideal for battery-operated systems such as personal digital assistants, portable multi-channel data loggers, and measurement equipment. The serial interface also provides low-cost isolation for remote data acquisition. The ADS8345 is available in a QSOP-20 or SSOP-20 package and is ensured over the –40°C to +85°C temperature range.
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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 ADS8345: 16-Bit, 8-Channel Serial Output Sampling Analog-to-Digital Converter datasheet (Rev. C) 2003/4/15
白皮書 Voltage-reference impact on total harmonic distortion 2016/8/1
電子書 Best of Baker's Best: Precision Data Converters -- SAR ADCs 2015/5/21
應用說明 Determining Minimum Acquisition Times for SAR ADCs, part 2 2011/3/17
應用說明 Determining Minimum Acquisition Times for SAR ADCs, part 1 (Rev. A) 2010/11/10
應用說明 Interfacing the ADS8345 to TMS320C5416 DSP 2002/12/5

設計與開發

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開發板

ADS8345EVM — ADS8345 評估模組

The ADS8345EVM is an 8-channel, 16-bit analog-to-digital converter board based on the ADS8345 ADC. Typical power dissipation is 8mW at 100kHz throughput rate and a 5V supply. The device uses a synchronous serial interface which is buffered on the EVM.

Companion power devices:

  • TPS7A3001 Vin -3V to (...)
使用指南: PDF
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計算工具

ANALOG-ENGINEER-CALC — PC software analog engineer's calculator

類比工程師的計算機旨在加速類比電路設計工程師定期使用的許多重複計算。此基於 PC 的工具提供圖形介面，列出各種常見計算，從使用回饋電阻器設定運算放大器增益到選擇適當的電路設計元件以穩定類比數位轉換器 (ADC) 驅動緩衝電路。

除了作為獨立工具使用外，此計算機還與類比工程師口袋參考中描述的概念相得益彰。

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計算工具

JITTER-SNR-CALC — Jitter and SNR calculator

JITTER-SNR-CALC can be used for calculating theoretical Signal to Noise (SNR) performance of ADCs based on input frequency and clock jitter.

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設計工具

ADC-DAC-TO-VREF-SELECT-DESIGN-TOOL — The ADC-TO-VREF-SELECT tool enables the pairing of TI ADCs, DACs, and series voltage references.

The ADC-TO-VREF-SELECT tool enables the pairing of TI analog-to-digital converters (ADCs) and series voltage references. Users can select an ADC device and the desired reference voltage, and the tool will list up to two voltage reference recommendations.
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SSOP (DB) 20 Ultra Librarian
SSOP (DBQ) 20 Ultra Librarian
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