DAS1414C DSP data acquisition system

Host processor card

- 40 MIPS high performance 16-bit fixed point digital signal processor (ADSP-2181)

- 80kbytes of on-chip memory (code and data)

- 64kbyte program EEPROM

- simple monitor program for serial port downloading

- system software downloaded from the host PC – extreme flexibility

- easy communication with the host PC using simple serial port communications

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A/D conversion and analog inputs

- 8 differential or single ended inputs (software selectable)

- overvoltage protection for -35V..35V out of operating range

- software programmable gain/input range : ±0.1V, ±1V,±10V

- approximately 1MHz bandwidth

- 300kHz maximum sample rate, 14-bit resolution

- 10us settling time to 0.01%

- simultaneous sampling capability of 2 selected channels

- integral non-linearity: ±1LSB typical

- total harmonic distortion (THD): 90 dB typical

- external digital triggering, software analog triggering based on converted input voltage

- external clock for conversion

D/A conversion and analog outputs

- four independent channels with fixed ±10V range

- 14-bit resolution, 1LSB typical nonlinearity

- 100KHz update rate

- 10us settling to 0.01%

- three current generator outputs (1A,1A,100mA, 5ms settling time)

Digital ports

- 8 TTL outputs

- 8 TTL inputs

- programmable TTL clock out up to 20MHz

Relays

- two independent SPDT isolated relays

- max. current: 1A

Sensor ports

- three ports for sensors

- 5V power, DAC outputs

- high resolution 16-bit sigma-delta A/D conversion, two differential and two single ended inputs

- software programmable gain on differential inputs

Serial communication port

- one isolated RS232 compatible serial port, 115200 bits per second data rate

- one asynchronous serial port for internal communications

LCD display

- 4 lines, 16 characters per line

- LED background illumination

Software support

- DSP system software and system loader

- LabVIEW library and examples