Comprehensive Product Summary: ADLINK NuDAQ ACL‑8113A Isolated Analog Input Card

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### 1. Product Overview

Product Name: ACL‑8113A
Series: NuDAQ ISA‑Bus Data Acquisition Series
Model: ACL‑8113A (12‑bit, 32‑Channel Isolated Analog Input Card)
Article Number: ACL‑8113A
Manufacturer: ADLINK Technology Inc.
Manufacturer Address: 9F, No. 166, Jian Yi Road, Chungho City, Taipei 235, Taiwan, R.O.C.
Website: [www.adlink.com.tw](http://www.adlink.com.tw)
Support Contacts:
- Sales & Service: service@adlink.com.tw
- Technical Support (NuDAQ): nudaq@adlink.com.tw
- Software Support: sw@adlink.com.tw
- Telephone: +886‑2‑82265877
- Fax: +886‑2‑82265717

The ADLINK ACL‑8113A is a high‑performance, cost‑effective 12‑bit, 32‑channel single‑ended isolated analog input card designed for the ISA bus. It provides robust electrical isolation, high‑speed data acquisition, and flexible software control for industrial measurement, monitoring, and signal analysis applications.

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### 2. Key Features

- 32 Single‑Ended Analog Input Channels: Each channel is individually isolated to protect the host PC and connected equipment.
- High Voltage Isolation: Over 2500 VDC isolation between channels and system ground ensures safe operation in high‑voltage environments.
- 12‑bit Resolution: Provides fine granularity for analog‑to‑digital conversion, suitable for precision measurement.
- Wide Input Range: Supports both bipolar (±10 V, ±5 V, ±2.5 V, ±1.25 V, ±0.625 V) and unipolar (0–10 V, 0–5 V, 0–2.5 V, 0–1.25 V, 0–0.625 V) ranges.
- Software‑Programmable Gain Control: Selectable gains of ×1, ×2, ×4, ×8, and ×16 for each channel.
- On‑Board Signal Conditioning: Integrated RC filters and configurable I‑to‑V conversion circuits for flexible signal adaptation.
- High Conversion Speed: Up to 50 kHz maximum sampling rate using a successive approximation A/D converter (AD574 or equivalent).
- Compact Half‑Size ISA Card: 160 mm × 122 mm PCB with 4‑layer design and integral ground plane for noise immunity.
- Integral DC‑to‑DC Converters: Provide stable isolated power for analog circuitry.
- Software Triggered Conversion: Fully software‑controlled A/D triggering for flexible timing.
- Comprehensive Software Support: Includes DOS C/C++ libraries, Windows DLLs (ACLS‑DLL2), and LabVIEW drivers (ACLS‑LVIEW).
- Over‑Voltage Protection: Continuous protection up to ±35 V.
- High Accuracy: ±0.015 % of reading ± 1 LSB typical.
- Temperature Stability: 5 ppm/°C typical, 15 ppm/°C maximum.

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### 3. Technical Specifications

Analog Input (A/D):
- Channels: 32 isolated single‑ended inputs
- Resolution: 12 bits
- Input Ranges:
- 10 V Range:
- Bipolar: ±5 V, ±2.5 V, ±1.25 V, ±0.625 V, ±0.3125 V
- Unipolar: 0–10 V, 0–5 V, 0–2.5 V, 0–1.25 V, 0–0.625 V
- 20 V Range:
- Bipolar: ±10 V, ±5 V, ±2.5 V, ±1.25 V, ±0.625 V
- Unipolar: 0–10 V, 0–5 V, 0–2.5 V, 0–1.25 V
- Input Impedance: 10 MΩ typical
- Over‑Voltage Protection: ±35 V continuous
- Converter Type: 12‑bit successive approximation (AD574 or equivalent)
- Conversion Speed: 50 kHz maximum
- Accuracy: ±0.015 % of reading ± 1 LSB
- Non‑Linearity: ±1 bit maximum
- Trigger Mode: Software trigger
- Data Transfer: Program control (polling)
- Temperature Coefficient: 5 ppm typical, 15 ppm maximum

General Specifications:
- Connector: 37‑pin D‑type female connector
- Operating Temperature: 0 °C – 55 °C
- Storage Temperature: −20 °C – 80 °C
- Humidity: 5 – 95 % RH, non‑condensing
- Power Consumption: +5 V @ 960 mA (max)
- Dimensions: 160 mm (L) × 122 mm (W)
- PCB Type: 4‑layer with integral ground plane

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### 4. Functionality

Operating Principle:
The ACL‑8113A converts analog voltage signals into 12‑bit digital data through a successive approximation A/D converter. Each channel is isolated and can be configured for different voltage ranges and gains. The card communicates with the host PC via the ISA bus using I/O port addressing.

Use Cases and Applications:
- Industrial process monitoring and control
- Multi‑channel sensor and transducer data acquisition
- Waveform and transient signal capture
- Vibration and noise analysis
- Laboratory instrumentation and test automation
- Signal isolation in mixed‑voltage environments

Compatibility:
- ISA‑bus compatible PCs
- Supported operating systems: DOS, Windows 3.1/95/98/NT
- Software environments: Borland C/C++, Microsoft C, Visual C++, Visual Basic, Delphi, LabVIEW

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### 5. Components & Accessories

Package Contents:
- ACL‑8113A 32‑Channel Isolated A/D Card
- ADLINK Software CD (includes DOS library, Windows DLLs, LabVIEW drivers, and calibration utilities)
- User’s Manual

Connector Details:
- DB‑37 Female Connector Pinout:
- Channels AI0–AI31 (Analog Inputs)
- Multiple Analog Grounds (A.GND) for reference
- Pin assignment follows standard NuDAQ convention

Optional Accessories:
- Shielded 37‑pin D‑type cables
- Terminal boards for signal wiring
- Calibration tools (multimeter, voltage calibrator)

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### 6. Installation & Setup

Installation Requirements:
- Available ISA slot in host PC
- +5 V power supply (960 mA max)
- Anti‑static handling precautions (grounded wrist strap and mat)

Setup Procedure:
1. Unpacking: Handle in an ESD‑safe environment. Inspect for shipping damage.
2. Base Address Configuration:
- Selectable via 5‑position DIP switch (SW1).
- Default base address: Hex 220.
- Address range: 000h – 3F0h (16 consecutive I/O addresses).
3. Input Range Selection:
- JP1: Selects voltage range (10 V or 20 V).
- JP2: Selects input polarity (Bipolar or Unipolar).
4. Gain Control: Software‑programmable via register at Base + 9.
5. Channel Selection: Controlled via register at Base + 10.
6. Triggering: Software trigger initiated by writing to Base + 12.
7. Data Acquisition: Read 12‑bit data from Base + 4 (low byte) and Base + 5 (high byte).

Mounting:
- Standard half‑size ISA card form factor fits most industrial PCs.
- Secure with bracket screw to chassis.

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### 7. Performance & Capabilities

Speed and Throughput:
- Maximum conversion rate: 50 kHz (20 µs per conversion).
- Software‑controlled polling ensures deterministic operation for low‑speed or event‑driven sampling.

Capacity:
- 32 isolated channels allow simultaneous monitoring of multiple sensors or transducers.

Accuracy and Stability:
- ±0.015 % of reading ± 1 LSB accuracy.
- Temperature drift ≤ 15 ppm/°C.
- On‑board DC‑to‑DC converters maintain stable analog reference voltages.

Limitations:
- Software trigger only (no hardware or external trigger).
- Single‑ended input configuration (no differential mode).
- ISA bus interface limits use to legacy or industrial PC systems.

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### 8. Standards & Compliance

Electrical Isolation:
- Channel‑to‑system isolation: > 2500 VDC.
- Over‑voltage protection: ±35 V continuous.

Environmental Compliance:
- Operating temperature: 0 °C – 55 °C
- Storage temperature: −20 °C – 80 °C
- Humidity: 5 – 95 % non‑condensing

Industry Standards:
- ISA‑Bus compatible (16‑bit I/O addressing)
- Conforms to ADLINK NuDAQ hardware and software interface standards

Software Standards:
- Supports ADLINK ACLS‑DLL2 (Windows 3.1/95/98/NT)
- Supports ACLS‑LVIEW for LabVIEW integration
- DOS C/C++ library compatible with Borland C and Microsoft C compilers

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### 9. Additional Information

Calibration:
- Four variable resistors (VR1–VR4) for fine‑tuning A/D accuracy:
- VR1: Bipolar offset adjustment
- VR2: Bipolar full‑scale adjustment
- VR3: Amplifier offset adjustment
- VR4: Unipolar full‑scale adjustment
- Calibration procedure requires a 6½‑digit multimeter and stable DC voltage source.
- Separate routines for bipolar and unipolar calibration modes.

Software Support:
- DOS Library: Includes initialization, channel selection, gain control, and data acquisition functions (`_8113_Initial`, `_8113_AD_Acquire`, `_8113_MAD_Acquire`, etc.).
- Windows DLL (ACLS‑DLL2): Provides high‑level API for Windows applications.
- LabVIEW Driver (ACLS‑LVIEW): Enables graphical programming integration.

Programming Interface:
- Up to eight ACL‑8113A cards can be installed in one system.
- Base address and card number configurable via software.
- Functions support multi‑channel acquisition, gain selection, and data retrieval.

Warranty:
- Duration: 1 year from date of purchase.
- Coverage: Free from defects in materials and workmanship.
- Exclusions: Damage due to misuse, modification, or operation beyond specifications.
- Service Procedure: Return prepaid with proof of purchase; repair or replacement at manufacturer’s discretion.

Maintenance:
- Periodic calibration recommended for precision applications.
- Keep card free from dust and moisture; store in anti‑static packaging when not in use.

Support & Updates:
- Technical documentation and driver updates available from ADLINK website.
- Customer support via email and telephone.

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### Summary

The ADLINK NuDAQ ACL‑8113A is a robust, isolated 12‑bit analog input card engineered for industrial and laboratory data acquisition. Its 32 isolated single‑ended channels, high accuracy, and flexible software control make it ideal for multi‑channel measurement, process monitoring, and signal analysis. The card’s on‑board isolation, programmable gain, and comprehensive software libraries ensure reliable integration into both legacy ISA‑based systems and modern test environments requiring precise analog data capture.

With its combination of electrical protection, configurable input ranges, and extensive software support, the ACL‑8113A remains a dependable solution for engineers and system integrators seeking stable, high‑resolution analog input performance in industrial PC applications.