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Home » NEWEST Products » New by Manufacturer » Texas Instruments » ADS8881 18-bit, 1-MSPS, true-differential input ADC - TI |Mouser
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TI 18-bit, 1-MSPS, true-differential input ADC

TI ADS8881 18-bit, 1-MSPS, True-Differential Input ADC

TI ADS8881 is an 18-bit, 1-MSPS, true-differential input analog-to-digital converter (ADC). The device operates with a 2.5-V to 5-V external reference, offering a wide selection of signal ranges without additional input signal scaling. The reference voltage setting is independent of, and can exceed, the analog supply voltage (AVDD). The device offers an SPI-compatible serial interface that also supports daisy-chain operation for cascading multiple devices. An optional busy-indicator bit makes synchronizing with the digital host easy. The device supports unipolar true-differential analog input signals with a differential input swing of –VREF to +VREF. This true-differential analog input structure allows for a common-mode voltage of any value in the range of 0 V to +VREF (while both inputs are within the operating input range of –0.1 V to VREF + 0.1 V). Device operation is optimized for very low-power operation. Power consumption directly scales with speed. This feature makes the ADS8881 excellent for lower-speed applications.

Learn More About ADS888x Series

Features
  • Sample Rate: 1 MHz
  • No Latency Output
  • Unipolar, True-Differential Input Range: –VREF to +VREF
  • Wide Common-Mode Voltage Range: 0 V to VREF with 90-dB CMRR(min)
  • SPI™-Compatible Serial Interface with Daisy-Chain Option
  • Excellent AC and DC Performance:
    • SNR: 100 dB, THD: –115 dB
    • INL: ±1.5 LSB (typ), ±3.0 LSB (max)
    • DNL: +1.5 and –1 LSB (max), 18-Bit NMC
  • Wide Operating Range:
    • AVDD: 2.7 V to 3.6 V
    • DVDD: 2.7 V to 3.6 V (Independent of AVDD)
    • REF: 2.5 V to 5 V (Independent of AVDD)
    • Operating Temperature: –40°C to +85°C
  • Low Power Dissipation:
    • 5.5 mW at 1 MSPS
    • 0.55 mW at 100 kSPS
    • 55 µW at 10 kSPS
  • Power-Down Current (AVDD): 50 nA
  • Full-Scale Step Settling to 18 Bits: 290 ns
  • Packages: MSOP-10 and SON-10
ADS8881 Diagram
ADS8881 Diagram
  • Texas Instruments