Isolated A/D Converter Performance
Electrical Specifications
Unless otherwise noted, all specifications are at V
IN+
= -200 mV to +200 mV and V
IN-
= 0 V; all Typical
specifications are at T
A
= 25°C and V
DD1
= V
DD2
= V
DD
= 5 V; all Minimum/Maximum specifications are at
T
A
= -40°C to +85°C, V
DD1
= V
DD2
= V
DD
= 4.5 to 5.5 V.
Parameter
Resolution
Integral Nonlinearity
Symbol
Min.
15
INL
6
0.025
1
4
0.7
326
30
0.14
1
2.5
Typ.
Max.
Units
bits
LSB
%
LSB
mV
µV/ °C
mV/V
mV
%
%
ppm/°C
%
mV
Test Conditions
Fig. Note
1
2
3
V
IN+
= 0 V
5
4
STATIC CONVERTER CHARACTERISTICS
3
4
Differential Nonlinearity
DNL
Uncalibrated Input Offset
V
OS
-1
Offset Drift vs. Temperature
dV
OS
/dT
A
Offset drift vs. V
DD1
dV
OS
/dV
DD1
Internal Reference Voltage
V
REF
Absolute Reference Voltage
-4
Tolerance
Reference Voltage
-1
Matching
V
REF
Drift vs. Temperature dV
REF
/dT
A
V
REF
Drift vs. V
DD1
dV
REF
/dV
DD1
Full Scale Input Range
-V
REF
Recommended Input
-200
Voltage Range
4
1
190
0.9
+V
REF
+200
6
T
A
= 25°C.
See Note 5
5
6
DYNAMIC CONVERTER CHARACTERISTICS
(Digital Interface IC is set to Conversion Mode 3.)
Signal-to-Noise Ratio
Total Harmonic Distortion
Signal-to-(Noise
+ Distortion)
Effective Number of Bits
Conversion Time
SNR
THD
SND
ENOB
t
C2
t
C1
t
C0
t
DSIG
t
OVR1
t
THR1
BW
CMR
62
73
-67
66
12
0.7
18
37
18
2.7
10
22
20
dB
V
IN+
= 35 Hz,
400 mV
pk-pk
(141 mV
rms
) sine
wave.
2,9
10
Signal Delay
Over-Range Detect Time
Threshold Detect Time
Signal Bandwidth
Isolation Transient
Immunity
2.0
18
15
1.0
22
44
22
4.2
bits
µs
8
Pre-Trigger Mode 2 7,
Pre-Trigger Mode 1 14
Pre-Trigger Mode 0
10
V
IN+
= 0 to 400 mV 12
step waveform
11
V
ISO
= 1 kV
7
8
kHz
kV/µs
9
10
11
12
13
1-264
AGILENT [ AGILENT TECHNOLOGIES, LTD. ]
