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Current Sense Amplifier – SiSA4080

Rev 1.0

14/10/20

Absolute Maximum Ratings1 (Voltages referenced to GND unless otherwise stated)

PARAMETER

SYMBOL

VALUE

UNIT

Supply Voltage

VCC

-0.3 to +80

V

RS+ or RS-

VIN

-0.3 to +80

V

Output Voltage

VOUT

-0.3 to the lesser of +18 or (VCC + 0.3)

V

Differential Input Voltage

VRS+ - VRS-

±80

V

Current into any pin

IIN

±20

mA

Storage Temperature

TSTG

-65 to +150

°C

Operating Junction Temperature

TJ

-40 to 125

°C

Recommended Operating Conditions (Voltages referenced to GND unless otherwise stated)

PARAMETER

SYMBOL

MIN

MAX

UNIT

Operating Temperature

TA

-40

+125

°C

DC Supply Voltage

VCC

4.5

76

V

Common Mode Voltage

VCM

4.5

76

V

1. Operation above the absolute maximum rating may cause device failure. Operation at the absolute maximum ratings, for extended periods, may

reduce device reliability.

LIMITS

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

25°C

-

±0.1

±0.6

-40 to +85°C

-

-

±1

Input

Offset Voltage

VOS

VCC=VRS+=48V

-40 to +125°C

-

-

±1.2

mV

Input

Bias Current

VCC = VRS+ = 76V

-

5

12

Input

Leakage Current

IRS+ , IRS-

VCC = 0, VRS+ = 76V

-

0.01

2

µA

Full-Scale

Sense Voltage

VSENSE

-

-

±100

-

mV

Gain

AV

-

-

60

-

V/V

25°C

-

±0.1

±0.6

-40 to +85°C

-

-

±1

Gain Error

ΔAV

VCC=VRS+=48V

VSENSE =

10mV to 100mV

-40 to +125°C

-

-

±1.2

%

Power-Supply

Rejection Ratio

PSRR

VRS+ = 48V,VCC = 4.5V to 76V,

VSENSE = 50mV

100

122

-

Common-Mode

Rejection Ratio

CMRR

VCC = 48V,VRS+ = 4.5V to 76V,

VSENSE = 50mV

100

124

-

dB

Input Common-Mode

Voltage Range

2

CMVR

CMRR > 100 dB

4.5

-

76

V

DC Electrical Characteristics

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

2. The common-mode range at the low end of 4.5V applies to the most positive potential at RS+ or RS-. Depending on the polarity of VSENSE and the

device’s gain, either RS+ or RS- can extend below 4.5V by the device’s typical full-scale value of VSENSE