PCI-6111 2-Channel Simultaneous-Sampling Multifunction DAQ Device
The PCI-6111 is a two-channel S Series multifunction data acquisition device for high-speed synchronized measurements. Each analog input has a dedicated 12-bit ADC and can acquire at up to 5 MS/s per channel.
The two channels are sampled simultaneously, preserving the timing and phase relationship between paired signals. This makes the PCI-6111 particularly suitable for two-channel stimulus-response measurements, phase comparison, ultrasound, sonar and automotive electronic testing.
In addition to analog acquisition, the board provides two analog outputs, eight bidirectional digital I/O lines and two 24-bit counter/timers.
Key Features of the PCI-6111
- Two simultaneous analog input channels
- 12-bit analog input resolution
- 5 MS/s maximum sampling rate per channel
- Dedicated ADC for each input
- Input ranges extending to ±42 V
- Two analog output channels
- 4 MS/s maximum analog output update rate
- Eight bidirectional digital I/O lines
- Two 24-bit counter/timers
- Digital hardware triggering
- NI-DAQmx software support
PCI-6111 Technical Specifications
| Product Model | PCI-6111 |
|---|---|
| Part Number | 777530-01 |
| Product Type | S Series multifunction DAQ device |
| Bus Interface | PCI |
| Analog Inputs | 2 differential channels |
| ADC Resolution | 12 bits |
| Maximum Sample Rate | 5 MS/s per channel |
| Simultaneous Sampling | Yes |
| Input Ranges | ±42 V, ±20 V, ±10 V, ±5 V, ±2 V, ±1 V, ±0.5 V and ±0.2 V |
| Analog Input FIFO | 8,192 samples |
| Analog Outputs | 2 |
| Maximum AO Update Rate | 4 MS/s |
| Digital I/O | 8 bidirectional lines |
| Counters/Timers | 2 × 24-bit |
| Front Connection | 68-pin SCSI-type connector |
| Driver | NI-DAQmx |
PCI-6111 Part Number and Accessories
| Item | Part Number or Type | Description |
|---|---|---|
| PCI-6111 | 777530-01 | Two-channel, 12-bit, 5 MS/s/ch PCI multifunction DAQ device |
| Shielded Cable | Compatible 68-pin DAQ cable | Connects the PCI board to a terminal or BNC accessory |
| SCB-68 Series | Shielded connector block | Provides screw-terminal signal access |
| BNC-2110 | BNC terminal accessory | Convenient for oscilloscope-style and laboratory connections |
Verify the cable pinout and connector gender before ordering. Not every 68-pin NI cable is wired for every DAQ family.
Two-Channel Synchronized Measurement
The PCI-6111 is optimized for applications that need two high-speed measurements with precise alignment. Typical examples include comparing a generated stimulus with a measured response or evaluating two points in a signal chain.
Because each channel owns its ADC, changing the number of enabled channels does not divide a shared converter’s sampling capacity.
Wide Selectable Input Ranges
Selectable bipolar ranges allow the board to accommodate both relatively high-voltage signals and lower-level measurements. Choosing the smallest suitable range improves the use of the available 12-bit converter resolution.
The ±42 V range does not mean the board is isolated. Signal sources must remain within the specified common-mode and input limits, and grounding must be designed carefully.
Stimulus-Response Capability
The two analog outputs can generate signals that are synchronized with analog acquisition. Engineers can use this architecture for transfer-function testing, actuator-response evaluation and automated electronic validation.
External amplification or conditioning is required when a DUT needs more current, voltage or isolation than the analog outputs can provide directly.
PCI-6111 Applications
- Two-channel phase measurement
- Stimulus-response testing
- 42 V automotive electronics testing
- Radar and sonar development
- Ultrasound measurement
- Transient capture
- Electronic design validation
- Frequency and pulse measurement
- Automated laboratory testing
PCI-6111 Installation Workflow
Step 1: Check PCI Compatibility
Verify that the computer has a full-length compatible PCI slot and sufficient internal clearance.
Step 2: Install the Driver
Install a compatible NI-DAQmx version before installing or configuring the board.
Step 3: Fit the PCI-6111
Power down the host, insert the device securely and fasten the rear bracket.
Step 4: Connect Signal Hardware
Attach the shielded cable and connector accessory, then confirm the input assignments against the correct pinout.
Step 5: Validate Operation
Run a self-test in NI MAX and perform a low-voltage test acquisition before connecting the final DUT.
PCI-6111 Troubleshooting
The device is missing in NI MAX
Check the PCI connection, Windows Device Manager, NI-DAQmx version and whether the legacy board is supported by the operating system.
There is a phase shift between channels
Ensure that both channels belong to one hardware-timed task and use the same sample clock and trigger.
The input clips unexpectedly
Verify the selected range, common-mode voltage and peak signal amplitude. Transient peaks may exceed the range even when the average level appears acceptable.
Analog output does not match the waveform
Check the output scaling, update rate, regeneration mode, load impedance and grounding.
PCI-6111 Comparison
| Model | AI Channels | Resolution | Rate per Channel | Best Fit |
|---|---|---|---|---|
| PCI-6111 | 2 | 12-bit | 5 MS/s | High-speed paired measurements |
| PCI-6110 | 4 | 12-bit | 5 MS/s | Four-channel synchronized capture |
| PCI-6115 | 4 | 12-bit | 10 MS/s | Higher-speed acquisition |
| PCI-6120 | 4 | 16-bit | 800 kS/s | Higher-resolution measurement |
Frequently Asked Questions
How many analog inputs does the PCI-6111 have?
It provides two differential, simultaneously sampled analog inputs.
Can both inputs operate at 5 MS/s?
Yes. The specified maximum rate is 5 MS/s per channel.
Does it support analog generation?
Yes. The PCI-6111 includes two analog output channels with rates up to 4 MS/s.
Is the PCI-6111 isolated?
No. Appropriate grounding, signal conditioning and external isolation must be added when required.
Recommended Related Products
- PCI-6110 Four-Channel S Series DAQ
- PCI-6115 10 MS/s/ch S Series DAQ
- PCI-6120 16-Bit S Series DAQ
- View More NI DAQ Devices
Request a Quote for the PCI-6111
Contact us for availability and pricing for the PCI-6111 2-channel simultaneous-sampling DAQ device. Compatible cables, terminal blocks and alternative NI DAQ devices can also be supplied.
