Measurement Specialties PC-CARD-DAS16/12AO manual Specifications, Analog input, Accuracy

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Chapter 5

Specifications

Typical for 25 °C unless otherwise specified.

Specifications in italic text are guaranteed by design.

Analog input

 

Table 1. Analog input specifications

 

 

 

A/D converter type

 

ADS7804

Resolution

 

12 bits

Number of channels

 

16 single-ended / 8 differential, software selectable

Input ranges

 

±10 V, ±5 V, ±2.5 V, ±1.25 V, 0 to 10 V, 0 to 5 V, 0 to 2.5 V, 0 to 1.25 V,

 

 

software programmable

A/D pacing

 

Internal counter - 82C54.

(software programmable)

 

External source - A/D External Pacer,

 

 

software programmable for rising or falling edge

 

 

Software polled

A/D trigger sources

 

External edge trigger (A/D External Trigger)

A/D triggering modes

 

Rising or falling edge trigger - software selectable

A/D gate sources

 

A/D External Trigger, gate high or low, software selectable

 

 

A/D Pacer Gate, gate high

Burst mode

 

Software selectable option, burst rate = 100 kHz

Data transfer

 

From 4k sample FIFO via REPINSW

 

 

Programmed I/O

A/D conversion time

 

10 µs max

Calibrated throughput

 

100 kHz

Calibration

 

Auto-calibration, calibration factors for each range stored on

 

 

board in nonvolatile RAM

Accuracy

Accuracies are listed for a 100 kHz sampling rate, single channel operation, a 60 minute warm-up, and operational temperatures within ±2 °C of internal calibration temperature. The calibrator test source high side is tied to Channel 0 In and the low side tied to AGND.

 

Table 2. Absolute accuracy specifications

 

 

 

Range

 

Absolute Accuracy

 

 

 

±10.00 V

 

±3 LSB max

±5.000 V

 

±3 LSB max

±2.500 V

 

±3 LSB max

±1.250 V

 

±3 LSB max

0 to 10.00 V

 

±3 LSB max

0 to 5.000 V

 

±3 LSB max

0 to 2.500 V

 

±3 LSB max

0 to 1.250 V

 

±3 LSB max

Each PC-CARD-DAS16/12AO is tested at the factory to assure the board’s overall error does not exceed accuracy limits described in Table 2.

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Contents Page PC-CARD-DAS16/12AO Management committed to your satisfaction Trademark and Copyright Information Table of Contents PC-CARD-DAS16/12AO Users Guide Where to find more information About this Users GuideWhat you will learn from this users guide Conventions in this users guideOverview PC-CARD-DAS16/12AO features PC-CARD-DAS16/12AO block diagramIntroducing the PC-CARD-DAS16/12AO ChapterSoftware features Installing the PC-CARD-DAS16/12AO What comes with your PC-CARD-DAS16/12AO shipment?Hardware Additional documentation Optional componentsIf your Pcmcia card is not detected Installing the software Installing the PC-CARD-DAS16/12AOUnpacking the PC-CARD-DAS16/12AO Connecting the board for I/O operations Connectors, cables I/O connectorPin out I/O connector Board connector, cables, and accessory equipmentCabling CPCC-50M-4 Field wiring and signal termination Calibrating the PC-CARD-DAS16/12AORegister-level programming Programming and Developing ApplicationsProgramming languages Packaged applications programs Analog input ranges Functional DetailsConversion speed and amplification Triggering and transfer Pacer clockCounter/pacer logic diagram Specifications Analog input specificationsAbsolute accuracy specifications Analog inputChannel to channel crosstalk specifications Noise performance specificationsCrosstalk Noise performanceDifferential linearity error ±0.5 LSB max Analog output sectionCounter Digital input/outputInterrupt Power consumption Connector and pin outMiscellaneous EnvironmentalDifferential analog input mode pin out Single-ended analog input mode pin outDeclaration of Conformity USAMailinfo@mccdaq.com