FEATURES

· 0 to 1-MHz Sample Rate

· ±1.2 LSB Typ, ±2.5 LSB Max INL

· +0.75/-0.6 LSB Typ, +1.5/-1 LSB Max DNL

· 18-Bit NMC Ensured Over Temperature

· ±0.05-mV Offset Error

· ±0.05-PPM/°C Offset Error Drift

· ±0.035 %FSR Gain Error

· ±0.5-PPM/°C Gain Error Drift

· 99dB SNR, -121dB THD, 123dB SFDR

· Zero Latency

· Low Power: 225 mW at 1 MSPS

· Unipolar Differential Input Range: Vref to –Vref

· Onboard Reference with 6 PPM/°C Drift

· Onboard Reference Buffer

· High-Speed Parallel Interface

· Wide Digital Supply 2.7 V to 5.25 V

· 8-/16-/18-Bit Bus Transfer

· 48-Pin 7x7 QFN Package

APPLICATIONS

· Medical Instruments

· Optical Networking

· Transducer Interface

· High Accuracy Data Acquisition Systems

· Magnetometers

DESCRIPTION

The ADS8482 is an 18-bit, 1-MSPS A/C converter

with an internal 4.096-V reference and a

pseudo-bipolar, fully differential input. The device

includes a 18-bit capacitor-based SAR A/D converter

with inherent sample and hold. The ADS8482 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 ADS8482 is available in a 48-lead 7x7 QFN

package and is characterized over the industrial

–40°C to 85°C temperature range.