S Series Multifunction DAQ 12 or 16-Bit,
1 to 10 MS/s, 4 Analog Inputs
CH0+
CH0–
CH1+
CH1–
CH2+
CH2–
CH3+
CH3–
AI CH3
Mux
AI CH2
Mux
AI CH1
Mux
AI CH0
Mux
+
CH0
Amplifier
–
+
CH1
Amplifier
–
+
CH2
Amplifier
–
+
CH3
Amplifier
–
Anti-
Aliasing
Filter
CH0
12-Bit
ADC
12
CH0
Latch
Data (16)
Anti-
Aliasing
Filter
CH1
12-Bit
ADC
12
CH1
Latch
Data (16)
Anti-
Aliasing
Filter
CH2
12-Bit
ADC
12
CH2
Latch
Data (16)
Control
ADC
FIFO
Data (32)
Generic Mini
PCI
Bus
Bus
MITE
Interface
Interface
Address/Data
Anti-
Aliasing
Filter
CH3
12-Bit
ADC
12
CH3
Latch
Data (16)
I/O Connector
Calibration
Mux
2
Analog
Trigger
Circuitry
Trigger
Counter/
Timing I/O
Analog Input
Timing/Control
AI Control
EEPROM
IRQ
DMA
Trigger
Trigger Level
DACs
PFI / Trigger
DMA/IRQ
Bus
Interface
RTSI Bus
Interface
Analog Input
Control
DAQ-STC
Bus Interface
Analog
Output Control
EEPROM
Control
FPGA
DIO
Control
DMA
Interface
DIO
FIFO
I/O Bus
Interface
Timing
STC DIO (8)
Digital I/O (8)
DIO
Mux
DIO FIO
DAQ - STC
Analog Output
Timing/Control
Digital I/O
AO Control
FPGA Digital I/O (8)
DAC0
Data (12)
DAC
FIFO
Data (32)
DAC1
RTSI Bus
Calibration
DACs
Figure 2. NI 6120 and NI 6115 Hardware Block Diagram
4
National Instruments • Tel: (800) 813 3693 • info@ni.com • ni.com
PXI/CompactPCI Bus
NI [ NATIONAL INSTRUMENTS CORPORATION ]
