ADS8866IDRCT.pdf

exas Instruments ADS886x 16-Bit SAR Analog-to-Digital Converters

Texas Instruments ADS886x 16-Bit SAR Analog-to-Digital Converters are 16-bit single-ended input analog-to-digital converters. The device operates from an external 2.5V to 5V reference, providing a wide range of signal range options without additional input signal scaling. The reference voltage is set independently of and beyond the analog supply voltage (AVDD). The devices provide an SPI-compatible serial interface that supports daisy-chain operation to cascade multiple devices. An optional busy indicator (only on ADS8860, ADS8861, ADS8862, ADS8863, ADS8864, ADS8865) allows for easy synchronization with the digital host. Device operation is optimized for very low power operation. Power consumption is directly proportional to speed. This feature makes the ADS886x ideal for low-speed applications.

CHARACTERISTIC

Sample Rate:

ADS8860, ADS8661 - 1MHz

ADS8862, ADS8863 - 680kHz

ADS8864, ADS8865 - 400kHz

ADS8866, ADS8867 - 100kHz

No Latency Output

Unipolar, Single-Ended Input Range:

ADS8860, ADS8862, ADS8864, ADS8866 -0 to +VREF

ADS8861, ADS8863, ADS8865, ADS8867 -VREF to +VREF

SPI™-Compatible Serial Interface with Daisy-Chain Option

Excellent AC and DC Performance

Wide Operating Range:

AVDD: 2.7V to 3.6V

DVDR:

ADS8860, ADS8861 - 2.7V to 3.6V (Independent of AVDD)

ADS8862, ADS8863, ADS8864, ADS8865, ADS8866, ADS8867 - 1.65V to 3.6V (Independent of AVDD)

REF: 2.5V to 5V (Independent of AVDD)

Operating Temperature: -40°C to +85°C

Low-Power Dissipation

Power-Down Current (AVDD): 50nA

Full-Scale Step Settling to 16 Bits:

ADS8860, ADS8861 - 290ns

ADS8862, ADS8863 - 540ns

ADS8864, ADS8865, ADS8866, ADS8867 - 1200ns

Packages: MSOP-10 and SON-10

APPLICATION

Automatic Test Equipment (ATE)

Instrumentation and Process Controls

Precision Medical Equipment

Low-Power, Battery-Operated Instruments