ADS8364

ADS8364 ® ADS8364 SBAS219C – JUNE 2002 – REVISED AUGUST 2006 250kSPS, 16-Bit, 6-Channel Simultaneous Sampling ANALOG-TO-DIGITAL CONVERTERS FEATURES q 6 INPUT CHANNELS q FULLY DIFFERENTIAL INPUTS q 6 INDEPENDENT 16-BIT ADC q 4µs TOTAL THROUGHPUT PER CHANNEL q TESTED NO MISSING CODES TO 14 BITS q BUFFERED REFERENCE INPUTS q LOW POWER: 450mW q TQFP-64 PACKAGE APPLICATIONS q MOTOR CONTROL q MULTI-AXIS POSITIONING SYSTEMS q 3-PHASE POWER CONTROL CH A0+ CH A0– DESCRIPTION The ADS8364 includes six, 16-bit, 250kSPS ADCs (Analogto- Digital converters) with 6 fully differential input channels grouped into two pairs for high-speed simultaneous signal acquisition. Inputs to the sample-and-hold amplifiers are fully differential and are maintained differential to the input of the ADC. This provides excellent common-mode rejection of 80dB at 50KHz that is important in high-noise environments. The ADS8364 offers a flexible high-speed parallel interface with a direct address mode, a cycle, and a FIFO mode. The output data for each channel is available as a 16-bit word. S/H Amp CDAC Comp HOLDA CH A1+ CH A1– CH B0+ CH B0– HOLDB CH B1+ CH B1– CH C0+ CH C0– S/H Amp S/H Amp S/H Amp S/H Amp SAR CDAC Comp CDAC Comp SAR CDAC CDAC Comp Comp Interface Conversion and Control FIFO Register 6x A0 A1 A2 ADD RD WR CS FD EOC CLK RESET BYTE 16 Data Input/Output HOLDC CH C1+ CH C1– REFIN REFOUT S/H Amp Internal 2.5V Reference SAR CDAC Comp Please be aware that an important notice conce...