FEATURES
· 0 to 1 MSPS Sampling Rate
· 18-Bit NMC Ensured Over Temperature
· Low ±0.1 mV Offset Error
· Low 0.2 ppm/°C Offset Error Temperature
Drift
· Low 0.6 ppm/°C Gain Error Temperature Drift
· Zero Latency
· Low Power: 220 mW at 1 MSPS
· Unipolar Single-Ended Input Range: 0 V to
Vref
· Onboard Reference
· Onboard Reference Buffer
· High-Speed Parallel Interface
· Wide Digital Supply 2.7 V ~ 5.25 V
· 8-/16-/18-Bit Bus Transfer
· 7x7 QFN Package

APPLICATIONS
· Medical Instruments
· Optical Networking
· Transducer Interface
· High Accuracy Data Acquisition Systems
· Magnetometers

DESCRIPTION
The ADS8481 is an 18-bit, 1-MSPS A/D converter
with an internal 4.096-V reference and a
pseudo-differential unipolar single-ended input. The
device includes a 18-bit capacitor-based SAR A/D
converter with inherent sample and hold. The
ADS8481 offers a full 18-bit interface, a 16-bit option
where data is read using two read cycles, or an 8-bit
bus option using three read cycles.
The ADS8481 is available in a 7x7 QFN package
and is characterized over the industrial –40°C to
85°C temperature range.