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ZXCT1081
ZXCT1081  
Document number: DS32102 Rev. 1 - 2 
3 of 11
www.diodes.com
March 2010
?Diodes Incorporated 
 Product Line of
Diodes Incorporated
 
 Electrical Characteristics (Test conditions: T
A
 = 25癈, V
IN
 = 12V, V
CC
 = 5V, V
SENSE
(a)
 = 100mV unless otherwise stated)
Symbol
Parameter
Condition
Min.
Typ.
Max.
Unit
I
CC
 
CC Supply Current
CC
 = 12V
40
80
120
礎
I
SENSE
+
SENSE+ Input Current
15
30
60
礎
I
SENSE
-
SENSE- Input Current
10
40
80
nA
O 0
 
Zero V
SENSE
(a)
 error
(b)
 
SENSE
(a)
 = 0V
0
 
35
mV
O 10
 
Output Offset Voltage
(c)
 
SENSE
(a)
 = 10mV
-30
 
+30
mV
Gain
V
OUT
/擵
SENSE
(a)
 
SENSE
(a)
 = 10mV to 150mV
9.95
10
10.05
 
OUT
TC
(d)
 
OUT
 Variation with Temperature
 
30
 
ppm/癈
CC
 
Total Output Error
-3
 
3
%
I
OH
 
Output Source Current
OUT
 = 30mV
 
1
 
mA
I
OL
 
Output Sink Current
OUT
 = +30mV
 
20
 
礎
PSRR
CC Supply Rejection Ration
CC
 = 4.5V to 12V
54
60
 
dB
CMRR
Common-Mode Sense Rejection Ratio
IN
 + 40V to 3V
60
75
 
dB
BW
-3dB Small Signal Bandwidth
SENSE
(a)
 
AC
 = 10mV   
 
50
 
kHz
Notes:   (a) VSENSE = "V
SENSE
+" - "V
SENSE
-" 
(b) The ZXCT1081 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.
(c) 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>.
(d)Temperature dependent measurements are extracted from characterization and simulation results.      
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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