Zxct1080, High voltage high-side current monitor, Electrical characteristics – Diodes ZXCT1080 User Manual
Page 3
ZXCT1080
HIGH VOLTAGE HIGH-SIDE CURRENT MONITOR
ZXCT1080
Document number: DS33454 Rev. 4 - 2
3 of 11
December 2011
© Diodes Incorporated
Electrical Characteristics
T
A
= 25
°C, V
IN
= 12V, V
CC
= 5V, V
SENSE
(Note 4
) = 100mV (unless otherwise specified)
Symbol
Parameter
Conditions
T
A
Min
(Note 5)
Typ.
Max
(Note 5)
Units
I
CC
V
CC
Supply Current
V
CC
= 12V,
V
SENSE
=0V
(Note 4
)
25°C 40
80
120
µA
Full range
145
I
S+
S+ Input Current
V
SENSE
= 0V
(Note 4
)
25°C 15
27
42
µA
Full range
60
I
S-
S- Input Current
25°C
15
40
80
nA
V
O(0)
Zero V
SENSE
error
(Note 4, 6
)
25°C 0
35
mV
V
O(10)
Output Offset Voltage
(Note 7
)
V
SENSE
= 10mV
(Note 4
)
25°C -25 +25
mV
Full range
-55
+55
Gain
ΔV
OUT
/
ΔV
SENSE
(Note 4)
V
SENSE
= 10mV to 150mV
(Note 4
)
25°C 9.9
10
10.1
V/V
Full range
9.8
10.2
V
OUT
TC
(Note 8
)
V
OUT
variation with
temperature
30
ppm/°C
A
CC
Total output error
-3
3
%
I
OH
Output Source Current
ΔV
OUT
= -30mV
1
mA
I
OL
Output Sink Current
ΔV
OUT
= +30mV
20
µA
PSRR
V
CC
Supply Rejection
Ration
V
CC
= 4.5V to 12V
54
60
dB
CMRR
Common-Mode Sense
Rejection Ratio
V
IN
= 60V to 3V
68
80
dB
BW
-3dB small signal
bandwidth
V
SENSE
(AC)
= 10mVpp
(Note 4
)
500
kHz
Notes: 4.
V
SENSE
= "V
S+
" - "V
S-
"
5. All Min and Max specifications over full temperature range are guaranteed by design and characterization
6. The ZXCT1080 operates from a positive power rail and the internal voltage-current converter current flow is unidirectional; these result in the output
offset voltage for V
SENSE
= 0V always being positive.
7. For V
SENSE
> 10mV, the internal voltage-current converter is fully linear. This enables a true offset to be defined and used. V
O(10)
is expressed
as the variance about an output voltage of 100mV>
8. Temperature dependent measurements are extracted from characterization and simulation results.