TQMC701

8 single-ended or differential A/D channels, 4 D/A channels, and 16 digital I/O channels

QMC module with 8 single-ended or differential bipolar analog inputs, 4 analog outputs, and 16 digital ESD-protected 5V-tolerant TTL lines. All I/O lines are individually programmable as inputs or outputs. The TTL I/O lines can be set to high, low, or tristate.
The 16-bit ADC offers 8 input channels, each with a sampling rate of up to 1 Msps. Each channel can be operated in bipolar single-ended, unipolar single-ended, and bipolar differential mode. In single-ended modes it offers software selectable input voltage ranges of 0-5 V, 0-10 V, 0-12.5 V, ±2.5 V, ±5 V, ±6.25 V, ±10 V, and ±12.5 V. In differential mode, the input voltages are selectable between ±5 V, ±10 V, ±12.5 V, and ±20 V.
The DAC offers 4 channels with 16-bit analog output channels with software configurable output voltage ranges of 0-5 V, 0-10 V, 0-10.8 V, ±5 V, ±10 V, or ±10.8 V. The output voltage range can be set individually for each channel. The conversion time is typically 10 μs, and the DAC outputs can drive a load of 2 kΩ with a capacitance of up to 4000 pF.

Each TQMC701 is factory calibrated. The calibration information is stored in an integrated serial EEPROM that is unique to each TQMC701 module. The correction data values can be used to perform hardware correction for A/D channels per input range and D/A channels per output range during functional operation. In addition, each module has a temperature sensor that allows monitoring and data temperature coherence evaluation.

The TQMC701 offers different operating modes to perform manual and automatic A/D and D/A conversions. Dedicated A/D and D/A sequencer units are available for automatic conversions. These include an onboard data buffer and a DMA controller for A/D data transfer, D/A data fetch, and conversion rate generators. The sequencers provide optionally a frame mode for repetitive frames of A/D and D/A conversions upon an internal or external trigger signal event. Conversion clock (conversion rate) and frame trigger signals can be generated onboard for internal use. Optionally, these can be provided via the I/O connector when the card is operating as a master card in a multi-board configuration (external synchronization). The conversion clock (conversion rate) and frame trigger signals can also be generated externally for internal use.

Integrity, VxWorks, QNX, Linux, and Windows drivers are available.