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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 control word.
VECANA01 Maximum Ratings
Ground Voltage Difference: AGND and DGND ................................ ±0.3V Power Supply Voltages: VANA+ .............................................................................................. +7V VANA ............................................................................................ 7V VDIG+ ............................................................................................... +7V VDIG ............................................................................................. 7V Digital Inputs ......................................................... 0.3V to VDIG +0.3V Maximum Junction Temperature ................................................ +165°C Internal Power Dissipation ......................................................... 825mW Lead Temperature (soldering, 10s) ........................................... +300°C
VECANA01 Features
·10 FULLY DIFFERENTIAL INPUTS ·5 SIMULTANEOUS SAMPLED CHANNELS PLUS 2 SYNCHRONIZED SAMPLING CHANNELS ·3 SYNCHRONIZED 12-BIT ADCs ·12.8ms THROUGHPUT RATE ·DIGITALLY SELECTABLE INPUT RANGES ·±5V POWER SUPPLIES ·SERIAL DIGITAL INPUT/OUTPUTS ·7 SIGN AND 3 DIGITALLY PROGRAMMABLE WINDOW COMPARATOR
VECANA01 Typical Application
·AC MOTOR SPEED CONTROLS ·THREE PHASE POWER CONTROL ·UNINTERRUPTABLE POWER SUPPLIES ·VIBRATION ANALYSIS