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.