Basic Information

Model: PCI‑20428W‑1AN (often abbreviated as PCI‑20428W‑1)

Bus: 32-bit PCI (5V, half-length card)

Type: Synchronous sampling multi-function DAQ (analog I/O + digital I/O + counter)

Status: Out of production (EOL), replacement models include PCIe‑6363/PCIe‑6351 and others in the X series

Position: High-speed dynamic signals, 42V automotive applications, radar / sonar / ultrasound, excitation-response synchronous testing

Core parameters

Analog Input (AI)

Channels: 2 differential synchronous sampling

Resolution: 12 bits

Sampling rate: 5 MS/s/channel (synchronous)

Input range: ±0.2 V to ±42 V (programmable gain)

Input impedance: 1 MΩ (differential)

Bandwidth: 2 MHz (typical)

Analog Output (AO)

Channels: 2 synchronous outputs

Resolution: 16 bits

Refresh rate: 4 MS/s (synchronous)

Output range: ±10 V

Drive capability: ±5 mA/channel

Digital I/O (DIO)

Channels: 8 TTL (bidirectional programmable)

Level: TTL compatible (high ≥ 2.4V, low ≤ 0.4V)

Rate: Up to 10 MHz

Counter/Trigger

Counter: 2 24-bit (frequency measurement / counting / pulse generation)

Trigger: Digital trigger (edge / level selectable), supports external trigger / external clock

Synchronization: Multi-card synchronization (RTSI bus)

Electrical and Physical

Power consumption: +5 V @ 2 A; +12 V @ 300 mA

Dimensions: 17.5 × 10.7 cm (half-length PCI)

Operating temperature: 0 ℃ ~ +55 ℃

On-board cache: None (direct DMA transmission)

Software compatibility

Drivers: NI-DAQmx (traditional), supports LabVIEW, LabWindows/CVI, VC++, VB, Python

System: Windows 2000/XP/Vista/7 (Win10 requires compatibility mode)

Applications: Dynamic signal analysis, Hardware-in-the-Loop (HIL), High-speed control, Sensor calibration

Retirement and replacement (direct upgrade)

Retirement date: September 28, 2018 (NI legacy product line)

Recommended replacement:

PCIe‑6363: PCIe bus, 4 channels AI (16 bits, 2 MS/s), 4 channels AO, 8 channels DIO, compatible with DAQmx

PCIe‑6351: PCIe bus, 16 channels AI (16 bits, 1.25 MS/s), 2 channels AO, 24 channels DIO, high性价比

USB‑6363： USB bus, portable without enclosure, parameters the same as PCIe‑6363