Comprehensive Product Summary: ADLINK PXI-2501 Multi-Function Data Acquisition Card

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### 1. Product Overview

Product Name: PXI-2501
Model Number: PXI-2501
Series: PXI/DAQ/DAQe-2500 Series (NuDAQ-2500 Family)
Article Number: PXI-2501
Manufacturer: ADLINK Technology Inc.
Product Type: PXI Bus Data Acquisition (DAQ) and Analog Output Card
Description: PXI DA Card, 4-Channel, 1 MS/s, 12-bit simultaneous waveform generation with auto-calibration and integrated analog/digital triggering.

The PXI-2501 is a high-performance, multi-function PXI data acquisition card designed for precision analog output, analog input, digital I/O, and timing/counter applications. It belongs to ADLINK’s NuDAQ-2500 Series, which includes PCI, PXI, and PXI Express variants (DAQ-, PXI-, and DAQe-2500). The PXI-2501 model provides 4 analog output channels and 8 analog input channels, optimized for waveform generation, process control, and signal analysis.

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### 2. Key Features

- PXI Specification Compliance: Fully compliant with PXI Specification Rev. 2.2, supporting 32-bit 3.3V/5V PXI bus.
- High-Speed Analog Output: 4 channels, 12-bit resolution, maximum update rate of 1 MS/s per channel.
- Analog Input Capability: 8 single-ended channels, 14-bit resolution, 400 kS/s sampling rate.
- Simultaneous Waveform Generation: Hardware-based arbitrary waveform generation with onboard FIFO memory.
- Auto-Calibration: Fully automatic internal calibration using a precision 5V reference (±2 ppm/°C).
- Triggering Flexibility: Supports software, external analog/digital, and SSI (System Synchronization Interface) triggers.
- Synchronization: Multi-card synchronization via PXI trigger bus or SSI bus.
- Digital I/O: 24-channel TTL/CMOS compatible programmable I/O (8255 PIO compatible).
- Timer/Counter: Two 16-bit general-purpose up/down counters with 40 MHz base clock.
- Scatter-Gather DMA: High-speed data transfer for both analog input and output.
- Software Support: Compatible with LabVIEW®, MATLAB®, C/C++, Visual Basic, and Visual Studio.NET.
- Operating Systems: Windows 7/8 (x86/x64) and Linux.
- Utility Software: AD-Logger for data logging and monitoring.
- Plug-and-Play Configuration: Automatic resource allocation via PXI bus.

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### 3. Technical Specifications

Analog Output (AO):
- Channels: 4 voltage outputs
- Resolution: 12-bit
- Output Ranges: 0–10 V, ±10 V, 0–AOEXTREF, ±AOEXTREF
- Maximum Update Rate: 1 MS/s
- Slew Rate: 20 V/μs
- Settling Time: 3 μs to ±0.5 LSB
- Offset Error: ±8 mV
- Gain Error: ±0.04% of full-scale output
- Output Drive Capability: ±5 mA
- Load Stability: Up to 1500 pF passive load
- Output Coupling: DC
- Protection: Short-circuit to ground
- FIFO Buffer Size: 8 k-samples
- Data Transfer: Programmed I/O, scatter-gather DMA

Analog Input (AI):
- Channels: 8 single-ended
- Resolution: 14-bit, no missing codes
- Sampling Rate: 400 kS/s
- Input Ranges: Bipolar ±10 V, Unipolar 0–10 V
- Offset Error: ±4 mV
- Gain Error: ±0.1% of FSR
- Input Impedance: 1 GΩ / 6 pF
- Overvoltage Protection: ±30 V (power on), ±15 V (power off)
- Coupling: DC
- FIFO Buffer Size: 2 k-samples
- Data Transfer: Polling or scatter-gather DMA

Digital I/O (DIO):
- Channels: 24 programmable I/O (8255 compatible)
- Logic Levels: TTL/CMOS (5V)
- Data Transfer: Programmed I/O

Timer/Counter:
- Channels: 2
- Resolution: 16-bit
- Base Clock: 40 MHz internal, external up to 10 MHz
- Compatibility: TTL/CMOS

General:
- Auto Calibration: Yes (+5 V reference, ±2 ppm/°C)
- Dimensions: 160 mm × 100 mm (PXI form factor)
- Connector: 68-pin VHDCI female (AMP-787254-1)
- Operating Temperature: 0°C to 55°C
- Storage Temperature: -20°C to 70°C
- Humidity: 5–95%, non-condensing
- Power Requirements: +5 V @ 1.6 A typical
- Weight: Approx. 300 g (typical PXI module weight)

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### 4. Functionality

The PXI-2501 integrates analog output, analog input, digital I/O, and timing functions into a single PXI module. It is designed for high-speed waveform generation, signal acquisition, and control applications.

Operation Principles:
- Analog Output: Generates continuous or arbitrary waveforms using onboard FIFO and hardware timing. Supports both software-controlled and hardware-timed updates.
- Analog Input: Acquires analog signals with 14-bit precision, supporting post-trigger, delay-trigger, and retrigger modes.
- Digital I/O: Provides 24 programmable lines for control, monitoring, or synchronization with external devices.
- Timer/Counter: Two 16-bit counters can be used for event counting, frequency measurement, or pulse generation.
- Triggering: Supports software, external analog/digital, and SSI triggers for precise synchronization.
- Synchronization: Multiple PXI-2501 cards can be synchronized via PXI trigger bus or SSI bus for multi-channel systems.

Use Cases:
- Arbitrary waveform generation
- Process control and automation
- Transient signal measurement
- Automated Test Equipment (ATE)
- Laboratory instrumentation
- Biomedical signal generation and acquisition

Compatibility:
- PXI chassis and controllers
- ADLINK terminal boards (DIN-68S-01, ACL-10568-1)
- Software: LabVIEW, MATLAB, Visual Studio, C/C++, VB.NET

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### 5. Components & Accessories

Included Items:
- PXI-2501 DAQ card
- ADLINK All-in-One CD (drivers, SDKs, utilities)
- Software Installation Guide
- User’s Manual

Optional Accessories:
- Terminal Boards:
- DIN-68S-01 (68-pin screw terminal board)
- ACL-10568-1 (shielded cable assembly)
- ACL-SSI-2/3/4 (synchronization interface cables)
- Cables: 68-pin VHDCI to SCSI-type shielded cables

Connectors:
- 68-pin VHDCI female connector for analog, digital, and timing signals
- Supports external reference inputs, triggers, and synchronization lines

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### 6. Installation & Setup

Requirements:
- PXI chassis with available slot
- Supported OS: Windows 7/8 (x86/x64), Linux
- Minimum +5 VDC power supply (1.6 A typical)

Installation Steps:
1. Power off the PXI chassis and insert the PXI-2501 into an available slot.
2. Secure the module and connect the VHDCI cable to the terminal board.
3. Power on the system; the PXI bus automatically configures resources (plug-and-play).
4. Install drivers and software from the ADLINK CD.
5. Verify installation using ADLINK’s PCI_SCAN utility.

Configuration:
- No jumpers required; all settings are software-configurable.
- Supports automatic IRQ and DMA assignment.
- Calibration constants are loaded automatically from onboard EEPROM.

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### 7. Performance & Capabilities

Analog Output Performance:
- Update Rate: 1 MS/s per channel
- Slew Rate: 20 V/μs
- Settling Time: 3 μs to ±0.5 LSB
- Output Drive: ±5 mA
- Output Stability: Up to 1500 pF load

Analog Input Performance:
- Sampling Rate: 400 kS/s
- Resolution: 14-bit
- Input Range: ±10 V or 0–10 V
- Input Impedance: 1 GΩ
- Overvoltage Protection: ±30 V continuous

Digital I/O:
- 24 channels, TTL/CMOS compatible
- Configurable as input or output per port

Timer/Counter:
- 16-bit resolution, up to 10 MHz external clock
- Supports event counting, pulse generation, and frequency measurement

Efficiency & Limitations:
- High throughput via scatter-gather DMA minimizes CPU load.
- FIFO buffers (8k AO, 2k AI) ensure continuous data streaming.
- Maximum D/A update rate limited to 1 MHz; A/D sampling limited to 400 kS/s.
- External reference voltage must remain within ±10 V.

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### 8. Standards & Compliance

- PXI Specification: Rev. 2.2 compliant
- Bus Interface: 32-bit PXI (3.3V/5V signaling)
- Electrical Compatibility: TTL/CMOS logic levels
- Environmental Compliance:
- Operating: 0°C–55°C, 10–90% RH non-condensing
- Storage: -20°C–70°C, 5–95% RH non-condensing
- Calibration Reference: 5.0 V ±2 ppm/°C
- Safety & EMC: Designed to meet industrial EMC and safety standards (CE equivalent)
- Software Compliance: Compatible with major development environments and OS platforms

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### 9. Additional Information

Warranty:
- Standard 2-year limited warranty (1 year in China)
- Covers manufacturing defects and hardware failures under normal use
- Excludes damage from misuse, improper installation, or environmental factors

Support & Service:
- Global technical support via ADLINK regional offices
- Email: service@adlinktech.com
- Website: [www.adlinktech.com](http://www.adlinktech.com)
- Toll-Free (US): +1-866-4-ADLINK
- European Office: Düsseldorf, Germany
- Asia-Pacific Offices: Taiwan, Singapore, India, China (Beijing, Shanghai, Shenzhen)

Maintenance:
- Recommended warm-up time: 15 minutes before calibration
- Auto-calibration should be performed periodically for optimal accuracy
- Store in a dry, temperature-controlled environment

Software & Updates:
- Drivers: D2K-DASK (Windows), D2K-DASK/X (Linux)
- LabVIEW Driver: DAQ-LVIEW PnP
- ActiveX Controls: D2K-OCX
- Optional Software: DAQBench (ActiveX-based GUI toolkit)
- Firmware and driver updates available via ADLINK website

Calibration:
- Factory-calibrated before shipment
- Auto-calibration compensates for temperature drift and aging
- Calibration constants stored in onboard EEPROM
- User can save up to three calibration profiles for different environments

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### Summary

The ADLINK PXI-2501 is a robust, high-precision PXI data acquisition and analog output card engineered for demanding test, measurement, and control applications. With 4 channels of 12-bit analog output at 1 MS/s, 8 channels of 14-bit analog input at 400 kS/s, and integrated digital I/O and timing functions, it provides a complete solution for waveform generation, signal analysis, and process automation. Its hardware-based waveform generation, auto-calibration, and synchronization capabilities make it ideal for multi-channel, high-speed, and high-accuracy applications in industrial, laboratory, and research environments.

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Keywords for Technical Search:
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