FDI2056 Use
r’s Manual
v 2.0 r 1.1
– 03/13
Copyright © 2013 Metrolab Technology SA
72
www.metrolab.com
REFERENCE
5-
Technical Details
5-1 DIGITIZER PERFORMANCE
Parameter
Conditions
Min Typ
Max
Unit
ADC RESOLUTION
18
bit
ANALOG INPUT
Differential voltage range (full-scale FS)
±5 V on each input leg
±10 V on each input leg
±10
±20
V
V
External trigger source f
t
f
ADC
≥ 2·f
t
1
250000
Hz
ADC sampling rate f
ADC
8 programmable values
1
500000
S/s
Gain
13 programmable values
0.1
100
DC
FS = ± 10 V, ± 2
Digitizer Differential Nonlinearity
1.5
LSB
Integrator Integral Nonlinearity
30 min, 27°C
– 36°C
± 7
ppm
Integrator stability
24 h, 30°C
± 3
ppm
Integrator repeatability
30 min, 30°C
± 1
ppm
Gain error
30 min, 27°C
– 36°C
0.2
%
24 h, 30°C
0.2
%
Offset error
30 min, 27°C
– 36°C
17
ppm
24 h, 30°C
7
ppm
AC
f
ADC
= 500 kS/s,
OSR = 100, fin = 10 Hz
Digitizer Signal-to-Noise and Distortion
97
dB
Digitizer Signal Non-Harmonic Ratio
103
dB
Digitizer Total Harmonic Distortion
-99
dB
Integrator Signal-to-Noise and Distortion
108
dB
Integrator Signal Non-Harmonic Ratio
118
dB
Integrator Total Harmonic Distortion
-109
dB
TIMER RESOLUTION
50
ns
THROUGHPUT RATE
cPCI/PXI bus
1
MB/s
5-2 INTEGRATOR CHANNEL REGISTERS DESCRIPTION