VECANA01

VECANA01 VECA NA01 www.ti.com 10-Channel, 12-Bit DATA ACQUISITION SYSTEM FEATURES q 10 FULLY DIFFERENTIAL INPUTS q 5 SIMULTANEOUS SAMPLED CHANNELS PLUS 2 SYNCHRONIZED SAMPLING CHANNELS q 3 SYNCHRONIZED 12-BIT ADCs q 12.8µs THROUGHPUT RATE q DIGITALLY SELECTABLE INPUT RANGES q ±5V POWER SUPPLIES q SERIAL DIGITAL INPUT/OUTPUTS q 7 SIGN AND 3 DIGITALLY PROGRAMMABLE WINDOW COMPARATOR IUP/N 2 A1P/N 2 A2P/N 2 IVP/N 2 B1P/N 2 B2P/N MUX2 2 IWP/N 2 AN1P/N AN2P/N AN3P/N 2 2 MUX3 Input Select Gain Select ADIN SH3 PGA3 ADC3 12-Bit ADOUT3 SH2 PGA2 ADC2 12-Bit ADOUT2 MUX1 SH1 PGA1 ADC1 12-Bit ADOUT1 2 APPLICATIONS q q q q AC MOTOR SPEED CONTROLS THREE PHASE POWER CONTROL UNINTERRUPTABLE POWER SUPPLIES VIBRATION ANALYSIS DESCRIPTION The VECANA01 consists of three 12-bit analog-todigital converters preceded by five simultaneously operating sample-hold amplifiers, and multiplexers for 10 differential inputs. The ADCs have simultaneous serial outputs for high speed data transfer and data processing. The VECANA01 also offers a programmable gain amplifier with programmable gains of 1.0V/V, 1.25V/V, 2.5V/V, and 5.0V/V. Channel selection and gain selection are selectable through the serial input control word. The high through put rate is maintained by simultaneously clocking in the 13-bit input control word for the next conversion while the present conversions are clocked out. The part also contains an 8-bit digital-to-analog converter whose digital input is supplied as part of the input contr...