AD8452 datasheet(4/35 Pages) AD

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Data Sheet

AD8452

Rev. 0 | Page 3 of 34

SPECIFICATIONS

AVCC = 15 V, AVEE = −15 V, VIN = 24 V, and TA = 25°C, unless otherwise noted.

ANALOG FRONT-END AND CONTROLLER SPECIFICATIONS

Table 1.

Parameter

Test Conditions/Comments

Min

Typ

Max

Unit

CURRENT SENSE INSTRUMENTATION

AMPLIFIER

Gain

V/V

Gain Error

VISMEA = ±10 V

±0.1

Gain Drift

TA = TMIN to TMAX

ppm/°C

Offset Voltage Referred to Input (RTI)

ISREFH pin and ISREFL pin grounded

−100

+100

µV

Offset Voltage Drift

TA = TMIN to TMAX

−0.6

−0.1

+0.6

µV/°C

Input Bias Current

Input Common-Mode Voltage Range

VISVP − VISVN = 0 V

AVEE + 2.3

AVCC − 2.4

Differential Input Impedance

150

GΩ

Common-Mode Input Impedance

150

GΩ

Output Voltage Swing

RL = 10 kΩ

AVEE + 1.5

AVCC − 1.2

Reference Input Voltage Range

ISREFH pin and ISREFL pin tied together

AVEE + 1.5

AVCC − 1.5

Reference Bias Current

VISVP = VISVN = 0 V

µA

Output Voltage Level Shift

ISREFL pin grounded

Maximum

ISREFH pin connected to VREF pin

12.5

Scale Factor

VISMEA/VISREFH

4.4

5.6

mV/V

Short-Circuit Current

Common-Mode Rejection Ratio (CMRR)

ΔVCM = 20 V

120

Temperature Coefficient

TA = TMIN to TMAX

0.01

µV/V/°C

Power Supply Rejection Ratio (PSRR)

ΔVS = 10 V

122

140

Small Signal −3 dB Bandwidth

675

kHz

Slew Rate

ΔVISMEA = 10 V

V/µs

VOLTAGE SENSE DIFFERENCE AMPLIFIER

Gain

0.4

V/V

Gain Error

VIN = ±10 V

±0.1

Gain Drift

TA = TMIN to TMAX

ppm/°C

Offset Voltage Referred to Output (RTO)

BVREFH pin and BVREFL pin grounded

−250

+250

µV

Offset Voltage Drift

TA = TMIN to TMAX

−2

−0.1

µV/°C

Differential Input Voltage Range

VBVN = 0 V, VBVREFL = 0 V

−17

+17

Input Common-Mode Voltage Range

VBVMEA = 0 V

−40

+40

Differential Input Impedance

400

kΩ

Input Common-Mode Impedance

140

kΩ

Output Voltage Swing

RL = 10 kΩ

AVEE + 1.5

AVCC − 1.2

Reference Input Voltage Range

BVREFH pin and BVREFL pin connected

AVEE + 1.5

AVCC − 1.5

Output Voltage Level Shift

BVREFL pin grounded

Maximum

BVREFH pin connected to VREF pin

11.0

12.5

14.0

Scale Factor

VBVMEA/VBVREFH

4.4

5.6

mV/V

Short-Circuit Current

CMRR

ΔVCM = 10 V, RTO

Temperature Coefficient

TA = TMIN to TMAX

0.05

µV/V/°C

PSRR

ΔVS = 10 V, RTO

114

123

Small Signal −3 dB Bandwidth

3.0

MHz

Slew Rate

ΔVBVMEA = 10 V

0.9

V/µs

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