ADS8584S - 16-Bit High-Speed 4-Channel Simultaneous-Sampling ADC With Bipolar Inputs on a Single Supply

The ADS8584S device is an 4-channel, integrated data acquisition (DAQ)system based on a simultaneous-sampling, 16-bit successive approximation (SAR) analog-to-digitalconverter (ADC) operating at a maximum of 330 kSPS per channel. The device featuresa complete analog front-end for each channel, including a programmable gain amplifier (PGA) withhigh input impedance of 1 MΩ, input clamp, low-pass filter, and an ADC input driver.The device also features a low-drift, precision reference with a buffer to drive the ADC. Aflexible digital interface supporting serial, parallel, and parallel byte communication enables thedevice to be used with a variety of host controllers.

The ADS8584S can be configured to accept ±10-V or ±5-V true bipolarinputs using a single 5-V supply. The high input impedance allows direct connection with sensorsand transformers, thus eliminating the need for external driver circuits. The high performance andaccuracy, along with zero-latency conversions offered by this device, also make theADS8584S a great choice for many industrial automation and controlapplications.

• 16-Bit ADC with Integrated Analog Front-End
• Simultaneous Sampling: 4-Channels
• Pin-Programmable Bipolar Inputs: ±10 V and ±5 V
• High Input Impedance: 1 MΩ
• 5-V Analog Supply: 2.3-V to 5-V Digital Supply
• Overvoltage Input Clamp with 7-kV ESD
• Low-Drift, On-Chip Reference (2.5 V) and Buffer
• Excellent Performance:
  • 330-kSPS Max Throughput per Channel
  • DNL: ±0.35 LSB; INL: ±0.45 LSB
  • SNR: 96.4 dB; THD: −114 dB
• Over Temperature Performance:
  • Max Offset Drift: 3 ppm/°C
  • Gain Drift: 6 ppm/°C
• On-Chip Digital Filter for Oversampling
• Flexible Parallel, Byte, and Serial Interface
• Temperature Range: –40°C to +125°C
• Package: 64-Pin LQFP

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