Specifications, Analog input | Measurement Specialties PCI-DAS1002

Specifications

Typical for 25 °C unless otherwise specified.

Specifications in italic text are guaranteed by design.

	Table 1. Analog input specifications

Parameter	Specification

A/D converter type	ADS7800 or equivalent
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 5V, 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 edge trigger
A/D pre-trigger mode	Unlimited pre- and post-trigger samples. Total number of samples must be greater than
	512.
Burst mode	Software selectable option, burst rate = 150 kHz
Data transfer	From 1024 sample FIFO via REPINSW
	Programmed I/O
A/D conversion time	3 µs max
Analog front end settling time	6 µs for a full scale step to 1 LSB
Calibrated throughput	200 kHz
Calibration	Auto-calibration, calibration factors for each range stored on board in nonvolatile RAM
A/D full-scale gain drift	±0.25 LSB/°C max
A/D zero drift	±0.25 LSB/°C max
Common mode range	±10 V min
CMRR @ 60 Hz	-70 dB min
Input leakage current	±20 nA max
Input impedance	10 MOhms min
Absolute maximum input	±35 volts
voltage
Warm-up time	15 minutes