Comprehensive Product Summary – ADLINK PXI-2020 Simultaneous Sampling Data Acquisition Card

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### 1. Product Overview

Product Name: PXI-2020
Model: PXI-2020
Series: PXI-2020/2022 Simultaneous Sampling DAQ Series
Article Number: PXI-2020
Manufacturer: ADLINK Technology Inc.
Manufacturer Address: 9F, No.166 Jian Yi Road, Chungho City, Taipei County 235, Taiwan
Website: [www.adlinktech.com](http://www.adlinktech.com)
Product Type: PXI Bus Analog-to-Digital (AD) Data Acquisition Card
Form Factor: 3U EuroCard PXI module

The ADLINK PXI-2020 is a high-performance, 8-channel, 16-bit, 250 kS/s simultaneous-sampling analog input card designed for PXI systems. It provides precise, low-noise data acquisition with differential inputs, flexible triggering, and synchronization capabilities. The PXI-2020 is part of ADLINK’s PXI-2020/2022 series, engineered for laboratory automation, ATE, and industrial measurement applications requiring accurate, simultaneous analog data capture.

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### 2. Key Features

- Simultaneous Sampling: 8 differential analog input channels (PXI-2020) or 16 channels (PXI-2022) with simultaneous 16-bit sampling at up to 250 kS/s per channel.
- High Resolution: 16-bit A/D conversion using ADI AD7685 converter for precise signal digitization.
- Programmable Input Range: Bipolar input ranges of ±10 V and ±2.5 V with programmable gain settings (x1, x4).
- Auto Calibration: Fully automated calibration with onboard 5.000 V reference, eliminating manual trim adjustments.
- Flexible Triggering: Supports software, external digital, PXI Star, and PXI Trigger Bus triggers with multiple trigger modes (pre-, post-, middle-, and delay-trigger).
- Digital I/O: 4-channel programmable TTL/CMOS digital input/output lines.
- Timer/Counter: Two 32-bit general-purpose up/down timer/counters with programmable clock and gate sources.
- Synchronization: Multi-module synchronization via PXI Trigger Bus and System Synchronization Interface (SSI).
- Memory Buffer: 8 K-sample (16 KB) onboard FIFO for continuous data streaming.
- PXI Compliance: PXI Specification Rev. 2.2 compliant, supporting both 3.3 V and 5 V PCI signaling.
- Software Support: Compatible with Windows and Linux; drivers available for LabVIEW™, MATLAB®, and ADLINK’s DAQPilot and D2K-DASK libraries.
- Form Factor: Compact 3U PXI module (100 mm x 160 mm).

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### 3. Technical Specifications

Analog Input
- Channels: 8 differential (PXI-2020)
- Resolution: 16 bits
- Sampling Rate: 250 kS/s per channel
- Input Range: ±10 V, ±2.5 V (programmable)
- Input Impedance: 1 GΩ
- Input Coupling: DC
- Input Type: Bipolar differential
- Programmable Gain: x1, x4
- Overvoltage Protection: ±30 V continuous (power on/off)
- A/D Converter: ADI AD7685
- FIFO Buffer: 8 K-sample (16 KB)
- DNL: ±0.8 LSB
- INL: ±1.5 LSB typical, ±3.0 LSB max
- Offset Error: ±0.6 mV typical
- Gain Error: ±0.05% of input
- Offset Drift: 0.1 mV/°C typical
- Bandwidth (-3 dB): 1 MHz (gain=1), 700 kHz (gain=4)
- System Noise: 0.5 mV RMS (gain=1), 0.2 mV RMS (gain=4)
- CMRR: 80 dB
- SFDR: 87 dB
- SINAD: 82 dB
- THD: –85 dB
- SNR: 84 dB
- ENOB: 13.3 bits

Digital I/O
- Channels: 4 programmable I/O lines
- Logic Compatibility: TTL/CMOS
- Input Low Voltage: ≤0.8 V
- Input High Voltage: ≥2.0 V
- Output Low Voltage: ≤0.4 V
- Output High Voltage: ≥2.8 V
- Drive Capability: ±24 mA
- Power-on State: Input, pull-low with 10 kΩ resistor

Timer/Counter
- Channels: 2
- Resolution: 32-bit
- Base Clock: 20 MHz
- Compatibility: 3.3 V/5 V TTL
- Modes: Event counting, pulse generation, period/pulse-width measurement, gated pulse generation

Auto Calibration
- Reference Voltage: +5.000 V
- Warm-up Time: 15 minutes
- Temperature Drift: ±3 ppm/°C
- Stability: 50 ppm/1000 hrs

General
- Dimensions: 100 mm (H) × 160 mm (L)
- Form Factor: 3U PXI module
- Connector: 68-pin VHDCI female (ACL-10568-1)
- Operating Temperature: 0 to 55°C
- Storage Temperature: –20 to 80°C
- Humidity: 10–90% RH (operating), 5–95% RH (storage), non-condensing
- Power Requirements: +3.3 V @ 1.5 A, +5 V @ 1.3 A, +12 V @ 0.35 A

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### 4. Functionality

The PXI-2020 performs high-precision analog-to-digital conversion across eight differential channels simultaneously. Each channel’s signal passes through a high-impedance buffer, programmable gain amplifier, and anti-aliasing filter before digitization by a 16-bit ADC. The card supports both internal and external timebase sources, enabling flexible sampling rate control and synchronization with other PXI modules.

Use Cases and Applications:
- Automotive and cable testing
- Transient signal measurement
- Automated Test Equipment (ATE)
- Laboratory and industrial automation
- Biotech and biomedical instrumentation

Compatibility:
- PXI backplane systems (Rev. 2.2 compliant)
- Operating Systems: Windows 2000/XP/Vista/2003, Linux
- Software: AD-Logger, DAQBench, MATLAB®, LabVIEW™, VB.NET, VC++, Delphi

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### 5. Components & Accessories

Included Items:
- PXI-2020 DAQ Card
- ADLINK All-in-One DVD (drivers and software)
- Software Installation Guide
- User’s Manual

Optional Accessories:
- SMB-SMB-1M: 1 m SMB-to-SMB cable
- SMB-BNC-1M: 1 m SMB-to-BNC cable
- DIN-68S-01: Terminal board with one 68-pin SCSI-II connector and DIN-rail mounting
- ACL-10568-1: 68-pin SCSI-VHDCI cable (1 m) for SSI synchronization

Connectors:
- 1 × 68-pin VHDCI connector (analog/digital I/O)
- 4 × SMB connectors (TRG IO, CLK IN, CLK OUT0, CLK OUT1)

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### 6. Installation & Setup

Requirements:
- PXI chassis compliant with PXI Rev. 2.2
- Anti-static handling precautions (wrist strap, mat)

Installation Steps:
1. Power off the PXI chassis.
2. Align the PXI-2020 with the chassis guide rails.
3. Insert until the connector engages; secure with front-panel screws.
4. Power on the chassis; the system auto-configures the card (Plug and Play).

Software Setup:
- Install drivers from ADLINK DVD.
- Supported libraries: D2K-DASK (Windows), D2K-DASK/X (Linux), DAQPilot (LabVIEW), DAQ-MTLB (MATLAB).
- Configuration handled automatically via PCI Plug-and-Play; no jumpers required.

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### 7. Performance & Capabilities

Sampling Performance:
- Maximum Rate: 250 kS/s per channel
- Simultaneous 8-channel acquisition
- Internal Timebase: 80 MHz oscillator
- External Clock Input: 1–20 MHz TTL-compatible

Triggering:
- Sources: Software, AFI[0–7], PXI Star, PXI Trigger Bus[5], SMB TRG IO
- Modes: Pre-, Post-, Middle-, Delay-trigger
- Minimum Pulse Width: 12.5 ns
- Polarity: Rising or falling edge (software-selectable)

Synchronization:
- Multi-module synchronization via PXI Trigger Bus (SSI)
- Master/slave configuration for timebase and trigger sharing
- Supports PXI_STAR and PXI_10M clock distribution

Efficiency & Limitations:
- High throughput via scatter-gather DMA
- 8 K-sample FIFO ensures continuous acquisition
- Limited to PXI systems (not CompactPCI-compatible for PXI_STAR functions)

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### 8. Standards & Compliance

- PXI Specification: Rev. 2.2 compliant
- PCI Signaling: Supports 3.3 V and 5 V
- Safety & Environmental:
- Operating temperature: 0–55°C
- Storage temperature: –20–80°C
- Humidity: 10–90% non-condensing
- Calibration Reference: ADR02 5 V precision reference chip
- EMC/ESD Handling: Requires anti-static precautions during installation

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### 9. Additional Information

Warranty & Support:
- Standard ADLINK warranty (contact regional office for terms)
- Global technical support via email and phone
- Service centers in Taiwan, USA, China, Europe, Japan, Korea, Singapore, and India

Maintenance:
- Recommended warm-up: 15 minutes before operation
- Auto-calibration available via software; no manual adjustment required
- Periodic recalibration advised for long-term accuracy

Firmware & Software Updates:
- Available through ADLINK’s support portal
- Compatible with DAQPilot, D2K-DASK, and DAQBench software suites

Safety Notes:
- Operate within specified environmental limits
- Avoid moisture and excessive heat
- Disconnect power before installation or removal
- Handle only in ESD-safe environments

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### Summary

The ADLINK PXI-2020 is a robust, precision-engineered PXI analog input card optimized for simultaneous multi-channel data acquisition. With 16-bit resolution, 250 kS/s sampling, and advanced synchronization and triggering capabilities, it is ideal for high-speed, high-accuracy measurement systems. Its fully automated calibration, flexible software support, and PXI compliance make it a versatile solution for industrial, scientific, and research applications requiring reliable, synchronized analog data capture.