SISA4080 datasheet(4/5 Pages) SS

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Current Sense Amplifier – SiSA4080

Rev 1.0

14/10/20

LIMITS

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Output Resistance

ROUT

VSENSE = 100mV

0.1

Ω

Output Voltage

Headroom

VCC - VOUT

VCC = 4.5V, VRS+ = 48V,

IOUT (sourcing) = +500µA,

VSENSE = 100mV

0.15

0.27

Supply Current

ICC

VCC = VRS+ = 76V, no load

190

µA

3. Output voltage is internally clamped not to exceed 18V

DC Electrical Characteristics continued

VCC = VRS+ = 4.5V to 76V, VSENSE = (VRS+ - VRS-) = 0V, RLOAD = 100kΩ, TA = -40 to +125°C unless otherwise noted.

LIMITS

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Bandwidth

VCC = VRS+ = 48V,

VOUT = 2.5V

270

kHz

Output Settling Time

to 1% of final value

tSETTLE

VSENSE = 10mV to 100mV

µs

Power-Up Time

tPU

VCC = VRS+ = 48V,

VSENSE = 100mV,

Output to 1% of final value

µs

Saturation

Recovery Time

tRECOVERY

Output settles to 1% of final

value, device does not

experience phase reversal

when overdriven

µs

Output

Capacitance Load

CLOAD

No sustained oscillations

500

AC Electrical Characteristics4

VCC = VRS+ = 4.5V to 76V, VSENSE = (VRS+ - VRS-) = 0V, RLOAD = 100kΩ, CLOAD = 20pF, TA = -40 to +125°C unless otherwise noted.

4. Not production tested in die form, characterized by chip design.

FULL-SCALE

LOAD CURRENT,

ILOAD (A)

CURRENT-SENSE

RESISTOR (mΩ)

FULL-SCALE,

VSENSE (mV)

FULL-SCALE

OUTPUT VOLTAGE (V)

0.100

1000

100

6.0

1.000

100

6.0

10.000

100

6.0

Typical Component Values

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