PCI-6154 | Product Introduction

The NI PCI-6154 is a S-series synchronous sampling multi-function DAQ card from National Instruments (NI), featuring channel-to-channel isolation. It is a PCI bus-based full-length card, with a focus on 4 isolated AI channels + 4 isolated AO channels + DIO + counter. It is suitable for testing scenarios in industrial environments with strong interference and requiring electrical isolation and synchronous control. Part number: 779340-01; discontinued (EOL), but spare parts and third-party supplies are still available.

I. Basic Information

Model: PCI‑6154

Brand: National Instruments (NI)

Series: S-Series (Synchronous Sampling, Isolated)

Bus: PCI (3.3 V / 5 V compatible, full-length card)

Connector: 37-pin D‑Sub

Driver: NI‑DAQmx

Operating Temperature: 0 ~ 50 °C

II. Analog Input AI (4 channels, isolated between channels)

Channels: 4 differential, each isolated, synchronous sampling NI

Resolution: 16 bits NI

Maximum Sampling Rate: 250 kS/s per channel (synchronous) NI

Input Range (software selectable): ±10 V, ±5 V, ±2 V, ±1 V NI

Coupling: DC NI

Input Impedance: >100 MΩ || 10 pF NI

Bias Current: ±100 pANI

Overvoltage Protection: ±25 V (power-on); ±15 V (power-off) NI

CMRR: 100 dB @ 60 Hz docs-be.ni.com

Crosstalk: -100 dB @ 10 kHz docs-be.ni.com

FIFO: 8,190 samples docs-be.ni.com

III. Analog Output AO (4 channels, isolated between channels)

Channels: 4 isolated, synchronous update docs-be.ni.com

Resolution: 16 bits docs-be.ni.com

Maximum Update Rate: 250 kS/s per channel docs-be.ni.com

Output Range: ±10 V (single channel); 4 channels can be combined to ±40 V

Drive Capability: ±5 mA

Setup Time: 10 µs (to ±0.5 LSB)

IV. Digital I/O (DIO)

Port 0: 6 digital inputs (PFI 0~5), TTL compatible NI

Port 1: 4 digital outputs (PFI 6~9), TTL compatible NI

Level: 5 V TTL/CMOS

Maximum Rate: 10 MHz

V. Counter / Timer

Channels: 2 32-bit general-purpose counters

Internal Clock: 20 MHz / 80 MHz / 100 kHz

Functions: Event counting, pulse generation, frequency measurement, encoder, PWM

VI. Trigger and Synchronization

Trigger Source: AI analog trigger, PFI external digital trigger

Synchronization: RTSI multi-card synchronization

Data Transmission: DMA, interrupt, programmable I/O

VII. Installation and Usage Tips (Core of the Manual) Installation

Turn off the power and disconnect the device. Insert it into the standard PCI slot and tighten the retaining screws.

After powering on, identify the device in MAX (Measurement & Automation Explorer) and confirm there are no errors.

Wiring (37-pin D-Sub)

AI: Differential wiring, AI+ / AI−,外壳 connected to ground.

AO： Single-ended or differential， isolated output， AO+ / AO−.

DIO： TTL level， common ground， avoid long-line interference.

Software configuration (NI-DAQmx)

Sampling mode： Simultaneous sampling.

Range： Select ±1 / ±2 / ±5 / ±10 V according to signal amplitude.

Trigger： Commonly used edge trigger (rising / falling).

Isolation and safety

Each AI/AO is 250 Vrms isolated， capable of isolating ground potential difference and common-mode interference.

Analog input is strictly prohibited from exceeding ±25 V； otherwise， it will damage the front end.

VIII. Core Features

4 isolated AI + 4 isolated AO， full-channel synchronous 250 kS/s NI

16-bit high resolution， electrical isolation (250 Vrms)， strong anti-common-mode interference NI

AO can be superimposed output (up to ±40 V)， suitable for high-voltage excitation

6DI + 4DO + 2×32-bit counters， complete functions

Applicable： Industrial control， automotive testing， data recording in strong interference environments， isolated excitation-response measurement