TPMC533 User Manual Issue 1.0.1
Page 86 of 107
4 I/O Electrical Interface
ADC
4.1
The TPMC533 provides thirty-two true differential analog input channels (ADC Channels) available at the
Front I/O Connector.
Analog Devices AD7609 are used for the analog inputs. Each AD7609 provides eight 16Bit differential ADC
channels (ADC Channels A-H).
•
Both, the TPMC533-10R and the TPMC533-20R order option, provide four AD7609 (ADC1, ADC2,
ADC3 & ADC4)
→
thirty-two analog input channels
Protection
7kV ESD rating
±16.5V Overvoltage Clamp Protection
Input Type
True bipolar differential
Input Impedance
1M
Ω
Input Capacitance
5pF
Maximum Ground related Input Voltage
±5V and ±10V
Full Scale Range
±10V and ±20V
Common-Mode Input Range
±4V
Sample Rate
200kSPS
Table 4-1 : ADC Electrical Interface
Differential with Ground Reference
Differential without Ground Reference
Table 4-2 : ADC Input Schemes
If signals without a ground reference shall be connected to TPMC533, connect VIN+ and VIN- to GND with a
resistor to prevent the signal source to float out of the ADC’s common-mode range. In most cases the VIN-
connection suffices.
Unused ADC channels should be connected to GND.