# PCI 1721: 12-bit, 4-ch Analog Output PCI Card with 16-ch Digital I/O

## Features

· 10 MHz maximum digital update rate
· PCI-bus mastering for data transfer
· Auto calibration function
· Four analog output channels with 1,024 samples FIFO buffer
· 12-bit DAC per analog output channel
· Real-time waveform output (10 MHz max.) with internal/external pacer
· Synchronized output function
· Flexible output types and range settings
· Retains output settings after hot reset
· 16-ch digital I/O channels
· 10 MHz, 16-bit resolution counter
· BoardID™ switch

## Introduction

PCI-1721 is an advanced, high-speed analog output card for the PCI bus, featuring 12-bit, double-buffered DACs per channel. It’s ideal for industrial applications needing high-speed continuous or real-time waveform output.

## Specifications

### Analog Output

· Channels: 4
· Resolution: 12 bits
· FIFO Size: 1,024 samples
· Output Rate: 10 MHz or static update
· Reference Clock: Internal: 10 MHz, External: 10 MHz max.
· Output Range (Software Programmable):
- Internal Reference:
- Unipolar: 0 ~ 5 V, 0 ~ 10 V
- Bipolar: ±5 V, ±10 V
- Current Loop: 0 ~ 20 mA, 4 ~ 20 mA
- External Reference: 0 ~ +x V @ +x V (-10≤ x≤ 10), -x ~ +x V @ +x V (-10≤ x≤ 10)
· Slew Rate: 10 V/µs
· Driving Capability: 10 mA
· Output Impedance: 0.1 W max.
· Operation Modes: Single/continuous/waveform/synchronized output
· Accuracy: Relative: ±1 LSB, Differential Non-linearity: ±1 LSB (monotonic)

### Counter/Timer

· Channels: 1
· Resolution: 16 bits
· Compatibility: 5 V/TTL
· Max. Input Frequency: 9.6 MHz
· Reference Clock: Internal: 10 MHz, External: 10 MHz max.

### Digital Input/Output

· Channels: 16 (shared)
· Compatibility: 5 V/TTL
· Input Voltage: Logic 0: 0.8 V max., Logic 1: 2.0 V min.
· Output Capability: Sink: 0.5 V @ 24 mA, Source: 2.0 V @ -15 mA

### General

· Bus Type: PCI V2.2
· I/O Connectors: 1 x 68-pin SCSI female connector
· Dimensions: 175 x 100 mm (6.9" x 3.9")
· Power Consumption: Typical: +5 V @ 850 mA, +12 V @ 600 mA, Max: +5 V @ 1 A, +12 V @ 700 mA
· Operating Temperature: 0 ~ 60° C (32 ~ 140° F)
· Storage Temperature: -20 ~ 85° C (-4 ~ 185° F)
· Storage Humidity: 5 ~ 95% RH (non-condensing)
· Certifications: FCC, CE

## Ordering Information

· PCI-1721: 12-bit, 4-ch Advanced PCI Analog Output Card
· PCL-10168-1: 68-pin SCSI Shielded Cable, 1 m
· PCL-10168-2: 68-pin SCSI Shielded Cable, 2 m
· ADAM-3968: 68-pin DIN-rail SCSI Wiring Board