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ADS9803

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20-bit eight-channel 2 MSPS per channel simultaneous sampling ADC with programmable gain amplifier

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ADS9803

現行
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產品詳細資料

Resolution (Bits) 20 Sample rate (max) (ksps) 2000 Number of input channels 8 Interface type Enhanced SPI, Serial CMOS Architecture SAR Input type Differential, Single-ended Multichannel configuration Simultaneous Sampling Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 12 Input voltage range (min) (V) -12 Features Over-Voltage Protection, PGA Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 220 Analog supply voltage (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 SNR (dB) 92.3 Digital supply (min) (V) 1.75 Digital supply (max) (V) 1.85
Resolution (Bits) 20 Sample rate (max) (ksps) 2000 Number of input channels 8 Interface type Enhanced SPI, Serial CMOS Architecture SAR Input type Differential, Single-ended Multichannel configuration Simultaneous Sampling Rating Catalog Reference mode External, Internal Input voltage range (max) (V) 12 Input voltage range (min) (V) -12 Features Over-Voltage Protection, PGA Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 220 Analog supply voltage (min) (V) 4.75 Analog supply voltage (max) (V) 5.25 SNR (dB) 92.3 Digital supply (min) (V) 1.75 Digital supply (max) (V) 1.85
VQFN (RSH) 56 49 mm² 7 x 7
  • 8-channel, 20-bit ADC with analog front-end:
    • Simultaneous sampling
    • Constant 1MΩ input impedance front-end
    • 2MSPS/ch speed for 8-channels
    • Speed-boost mode: 8MSPS/ch for 2-channels
  • Programmable analog input ranges:
    • ±12V, ±10V, ±7V, ±5V, ±3.5V, and ±2.5V
    • Single-ended and differential inputs
    • Common-mode voltage range: ±12V
    • Input overvoltage protection: Up to ±18V
  • User-selectable analog input bandwidth:
    • 22.7kHz and 700kHz
  • Integrated low-drift precision references:
    • ADC reference: 4.096V
    • 2.5V reference output for external circuits
  • Excellent AC and DC performance at full-throughput:
    • DNL: ±0.5ppm, INL: ±2.5ppm
    • SNR: 90.3dBFS, THD: –113dB
  • Power supply:
    • Analog and digital: 5V and 1.8V
    • Digital interface: 1.2V to 1.8V
  • Temperature range: –40°C to +125°C
  • 8-channel, 20-bit ADC with analog front-end:
    • Simultaneous sampling
    • Constant 1MΩ input impedance front-end
    • 2MSPS/ch speed for 8-channels
    • Speed-boost mode: 8MSPS/ch for 2-channels
  • Programmable analog input ranges:
    • ±12V, ±10V, ±7V, ±5V, ±3.5V, and ±2.5V
    • Single-ended and differential inputs
    • Common-mode voltage range: ±12V
    • Input overvoltage protection: Up to ±18V
  • User-selectable analog input bandwidth:
    • 22.7kHz and 700kHz
  • Integrated low-drift precision references:
    • ADC reference: 4.096V
    • 2.5V reference output for external circuits
  • Excellent AC and DC performance at full-throughput:
    • DNL: ±0.5ppm, INL: ±2.5ppm
    • SNR: 90.3dBFS, THD: –113dB
  • Power supply:
    • Analog and digital: 5V and 1.8V
    • Digital interface: 1.2V to 1.8V
  • Temperature range: –40°C to +125°C

The ADS9803 is an eight-channel data acquisition (DAQ) system based on a simultaneous sampling, 20-bit successive approximation register (SAR) analog-to-digital converter (ADC). The ADS9803 features a complete analog front-end (AFE) for each channel with an input clamp. The device also features a 1MΩ input impedance and a programmable gain amplifier (PGA) with user-selectable bandwidth options. The high input impedance allows direct connection with sensors and transformers, thus eliminating the need for external driver circuits. Configure the ADS9803 to accept ±12V, ±10V, ±7V, ±5V, ±3.5V, and ±2.5V bipolar inputs with up to ±12V input common-mode voltage.

A digital interface supporting 1.2V to 1.8V operation enables the ADS9803 to be used without external voltage level translators.

The ADS9803 is an eight-channel data acquisition (DAQ) system based on a simultaneous sampling, 20-bit successive approximation register (SAR) analog-to-digital converter (ADC). The ADS9803 features a complete analog front-end (AFE) for each channel with an input clamp. The device also features a 1MΩ input impedance and a programmable gain amplifier (PGA) with user-selectable bandwidth options. The high input impedance allows direct connection with sensors and transformers, thus eliminating the need for external driver circuits. Configure the ADS9803 to accept ±12V, ±10V, ±7V, ±5V, ±3.5V, and ±2.5V bipolar inputs with up to ±12V input common-mode voltage.

A digital interface supporting 1.2V to 1.8V operation enables the ADS9803 to be used without external voltage level translators.
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* Data sheet ADS980x 20-Bit, 2MSPS/Ch, 8-Channel, Simultaneous-Sampling ADCs With Integrated Analog Front-End datasheet PDF | HTML 2025年 8月 14日

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ADS98xx IBIS Model

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