ADS8339 - 16-Bit, 250kSPS, Serial Interface Micropower, Miniature SAR ADC

The ADS8339 is a 16-bit, 250-kSPS, analog-to-digital converter (ADC). The device operates with a 2.25-V to 5.5-V external reference. The device includes a capacitor-based, successive-approximation register (SAR) ADC with an inherent sample-and-hold circuit.

The device includes a 25-MHz, SPI-compatible serial interface. The interface is designed to support daisy-chaining or cascading of multiple devices. Furthermore, a busy indicator makes synchronizing with the digital host easy. The unipolar, single-ended input range for the device supports an input swing of 0 V to V_ref.

The device is optimized for low-power operation and power consumption scales directly with speed. This feature makes the device attractive for lower speed applications. The ADS8339 is available in a VSSOP-10 package.

• Sample Rate: 250 kHz
• 16-Bit Resolution
• Zero Latency at Full Speed
• Unipolar Single-Ended Input Range:
  • 0 V to V_ref
• SPI™-Compatible Serial Interface with Daisy-Chain Option
• Uses Internal Clock for Conversion
• Excellent Performance:
  • 93.6 dB SNR (typ) at 10-kHz Input
  • –106 dB THD (typ) at 10-kHz Input
  • ±2.0 LSB INL (max)
  • ±1.0 LSB DNL (max)
• Low-Power Dissipation:
  • 17.5 mW (typ) at 250 kSPS
• Power Scales Linearly with Speed:
  • 1.75 mW at 25 kSPS
• Power Dissipation During Power-Down State:
  • 0.25 µW (typ)
• Package: VSSOP-10