National Instruments Data Acquisition Device E Series - Manual (Page 137)

Appendix A Device-Specific Information
E Series User Manual A-2 ni.com
NI 6011E (NI PCI-MIO-16XE-50) Dither
You cannot disable dither on the NI 6011E (NI PCI-MIO-16XE-50). The
ADC resolution on this device is so fine that the ADC and the PGIA
inherently produce almost 0.5 LSB
rms
of noise. This configuration is
equivalent to having a dither circuit that is always enabled.
NI 6011E (NI PCI-MIO-16XE-50) Block Diagram
Figure A-1 shows a block diagram of the NI 6011E
(NI PCI-MIO-16XE-50).
Figure A-1. NI 6011E (NI PCI-MIO-16XE-50) Block Diagram
PCI Bus
Configuration
Memory
Timing
PFI / Trigger
I/O Connector
2
Digital I/O (8)
16-Bit
Sampling
A/D
Converter
Programmable
Gain
Amplifier
Calibration
Mux
Mux Mode
Selection
Switches
Voltage
REF
Calibration
DACs
4
Calibration
DACs
DAC0
DAC1
DAQ - STC
Analog Input
Timing/Control
Analog Output
Timing/Control
Digital I/O
Trigger
Counter/
Timing I/O
RTSI Bus
Interface
DMA/
Interrupt
Request
Bus
Interface
(8)
(8)
AI Control
IRQ
DMA
AO Control
Data (16)
EEPROM
Address/Data
Control
Data (16)
Analog
Input
Control
EEPROM
Control
DMA
Interface
MIO
Interface
DAQ-STC
Bus
Interface
Analog
Output
Control
I/O
Bus
Interface
Address (5)
Analog
Muxes
ADC
FIFO
MITE
Generic
Bus
Interface
PCI
Bus
Interface
+
Data (16)
RTSI Bus
2
–