Diodes ZXCT1081 - Manual (Page 3)

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