ADS8482

BurrĆBrown Products from Texas Instruments ADS8482 SLAS386A – JULY 2005 – REVISED JUNE 2006 18-BIT, 1-MSPS, PSEUDO-BIPOLAR, FULLY DIFFERENTIAL INPUT, MICROPOWER SAMPLING ANALOG-TO-DIGITAL CONVERTER WITH PARALLEL INTERFACE, REFERENCE FEATURES APPLICATIONS 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 Medical Instruments Optical Networking Transducer Interface High Accuracy Data Acquisition Systems Magnetometers ±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 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. Onboard Reference Buffer High-Speed Parallel Interface Wide Digital Supply 2.7 V to 5.25 V The ADS8482 is available in a 48-lead 7x7 QFN package and is characterized over the industrial –40°C to 85°C temperature range. 8-/16-/18-Bit Bus Transfer 48-Pin 7x7 QFN Package HIGH SPEED SAR CONVERT...