ZXCT1081 datasheet(3/11 Pages) DIODES

3 / 11 page

ZXCT1081

Document number: DS32102 Rev. 1 - 2

3 of 11

www.diodes.com

March 2010

A Product Line of

Diodes Incorporated

Electrical Characteristics (Test conditions: TA = 25°C, VIN = 12V, VCC = 5V, VSENSE

(a)

= 100mV unless otherwise stated)

Symbol

Parameter

Condition

Min.

Typ.

Max.

Unit

ICC

VCC Supply Current

VCC = 12V

120

µA

ISENSE+

SENSE+ Input Current

µA

ISENSE-

SENSE- Input Current

VO(0)

Zero VSENSE

(a)

error

(b)

VSENSE

(a)

= 0V

VO(10)

Output Offset Voltage

(c)

VSENSE

(a)

= 10mV

-30

+30

Gain

ΔVOUT/ΔVSENSE

(a)

VSENSE

(a)

= 10mV to 150mV

9.95

10.05

VOUTTC

(d)

VOUT Variation with Temperature

ppm/°C

ACC

Total Output Error

-3

IOH

Output Source Current

VOUT = 30mV

IOL

Output Sink Current

VOUT = +30mV

µA

PSRR

VCC Supply Rejection Ration

VCC = 4.5V to 12V

CMRR

Common-Mode Sense Rejection Ratio

VIN + 40V to 3V

-3dB Small Signal Bandwidth

VSENSE

(a)

(AC) = 10mVpp

kHz

Notes:

(a) VSENSE = "VSENSE+" - "VSENSE-"

(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 VSENSE = 0V always being positive.

(c) For VSENSE > 10mV, the internal voltage-current converter is fully linear. This enables a true offset to be defined and used. VO(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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