Sundance SMT377 - Manual (Page 21)

Version 1.1 Page 21 of 22 SMT377 User Manual
DAC Analogue outputs.
The SMT377 has 8 analogue outputs. Each of them can be independently non-
amplified or amplified by an output op-amp.
Output mode: Amplified, Non-Amplified.
0-Ohm resistors located next to the output connectors are used to do a hardware
selection between both modes, as shown on the following picture:
Figure 6 - Output hardware configuration.
Output signal - dynamic.
DAC7634s have a settling time of 10 µs; therefore, the maximum sampling frequency
is 100KHz. It also means that the maximum frequency that can be generated is
50KHz (Nyquist theory).
Output signal – Static.
DAC7634s are 16-bit DACs for a scale of 5 Volts (-2.5V -> +2.5V). They can be used
for example for position regulation. A bit of a sample data represents 76
µVolts.