Application Information
The TQMC701 is a VITA 93.0 compatible single-width
QMC providing 8 channels of simultaneous sampling
single ended or true differential bipolar analog inputs, 4
channels of simultaneous update analog voltage output
and 16 ESD-protected 5 V tolerant TTL digital I/O lines.
The 16 bit analog input channels support per channel
software configurable input modes and voltage ranges.
Each channel can be operated in bipolar single-ended,
unipolar single-ended and bipolar differential mode. In the
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
voltage ranges are selectable between ±5 V, ±10 V,
±12.5 V and ±20 V. Sampling rate for all channels active is
up to 1 Msps.
The 16 bit analog output channels support per channel
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 conversion
time is typ. 10 μs and the DAC outputs are capable to
drive a load of 2 kΩ, with a capacitance of up to 4000 pF.
All 16 digital I/O lines are ESD-protected and 5 V-tolerant.
Every I/O line is individually programmable as input or
output if not used for external synchronization. TTL I/O
lines can be set to high, low, or tristate.
Every TQMC701 is factory calibrated. The calibration
information is stored in a user-accessible on-board serial
EEPROM individual to every module. The correction data
values may be used to perform a hardware correction for
A/D channels per input range and D/A channels per output
range during functional operation.
In addition, there is a temperature sensor on every module
to allow supervisory and data temperature coherence
evaluation.
The TQMC701 provides different operation modes to
perform manual and automatic A/D and D/A conversions.
For automatic conversions there are dedicated A/D and
D/A sequencer units. These include on-board data buffer
and DMA controller for A/D data transfer, D/A data fetch
and conversion rate generators.
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 may be generated on-board for internal use.
Optionally these can be provided via the I/O connector if
the card is operating as a master card in a Multi-Board
configuration (externally synchronization). The conversion
clock (conversion rate) and frame trigger signals may also
be sourced externally to be used internally.
The TQMC701 is available as air cooled and conduction
cooled variant.
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