Low Cost, High Value Multifunction I/O

PCI-20428W Overview

The PCI-20428W Series Low-Cost PC Data Acquisition Boards are ideal for general-purpose data acquisition, test, measurement and control applications. They include all the basics: analog inputs and outputs, digital inputs and outputs, and a counter/timer. They also include premium DMA features not normally found in low-cost boards, such as:

Triggered DMA capability for transient capture at up to 100kHz.
Analog output DMA capability for waveform generation at up to 100,000 samples per second.
Concurrent analog input and analog output DMA for stimulus/response applications.

Features & Benefits

100kHz Multichannel Analog I/O Throughput
16SE/8Diff 12-Bit Analog Inputs
Two 12-Bit Analog Outputs
DMA Transfer to/from Host Memory
8 Digital Inputs, 8 Digital Outputs
One 16-Bit Counter
Completely Software Programmable
Waveform Generation, Transient Capture Capabilities
Ideal for OEM Applications

Reference Links

Configuration Example

Signal Conditioning & Termination Panels

PCI-20428W Specifications

Parameter	Conditions	Specifications
Analog Inputs
Number of Channels	Single-ended Differential	16 8
Resolution>		12 bits (1 part in 4096)
Voltage Ranges		0-5V, 0-10V, ±5V, ±10V
Software Programmable Gains	PCI-20428W-1A PCI-20428W-2A PCI-20428W-3A	1, 2, 4, 8 1
Gain Accuracy	Gain = 1 Gain = 10 or 100	± 0.012% ± 0.05% typical, ±0.25% max
Over Voltage Protection	Power on/Power Off	±35V/±20V
Offset Voltage	Referred to output	±2.44mV
Bias Current		500pA
Input Impedance		10**9 ohms/10pF
Common Mode Rejection	60Hz, 100 ohm imbalance Gain<=10 Gain=100	-80dB (0.02 LSB/V) -92dB (0.05 LSB/V)
Monotonicity		12 bits
Linearity Error		0.012%FS, ±1/2 LSB
Throughput, Multichannel	DMA, Triggered DMA	100KHz
	Analog Outputs (PCI-20428W-1A/-2A)
Number of Channels		2
Resolution		12 Bits (1 part in 4096)
Voltage Ranges		0-10V, ±5V, ±10V
Throughput		100kHz
	Digital I/O
Number of Ports	8 channels (bits) each	2 (1 input, 1 output)
Input Levels Input Current	High level/Low level	TTL compatible 20µA/20µA
Output Levels Source/Sink Current	Vout=High/Low	TTL compatible 400µA/8mA
	Counters
Number of Channels		1
Clock Speed		16MHz
Input Levels		TTL compatible
Output Levels Source/Sink Current	Vout=High/Low	TTL compatible 15mA/64mA
Rate Generators
Number		2 (1 analog input, 1 analog output)
Resolution		125nS
Output Frequency Range 16-bit With Prescaler		122Hz to 4MHz 0.002Hz to 2MHz
Input Levels		TTL compatible
Output Levels Source/Sink Current	Vout=High/Low	TTL compatible 15mA/64mA
Interrupts
Sources		EOC, AI Rate Generator, AO Rate Generator
PC Levels		IRQ2, IRQ3, IRQ5
DMA Channels
Number		2 (1 analog input, 1 analog output)
PC Levels	Jumper-selected	DMA1, DMA3
Resolution		125nS
Modes Input Output	Triggered/Non-triggered Triggered/Non-triggered	Linear/Circular Buffer Linear/Circular Buffer
Physical Characteristics
Power Requirements	Vin=+5V	1A
Size	Length x Height	9.0" x 4.2"(22.86cm x 10.67cm)
Operating Temperature Range		0 to 70° C