ADA4254ACPZ-R7 datasheet(4/59 Pages) AD

4 / 59 page

ADA4254

Data Sheet

Rev. B | Page 4 of 59

SPECIFICATIONS

TA = 25°C, VDDH = 28 V, VSSH = −28 V, AVDD = 5 V, AVSS = 0 V, DVDD = 3.3 V, DVSS = 0 V, VOCM = AVDD/2, and no load,

unless otherwise noted.

Table 1.

Parameter

Test Conditions/Comments

Min

Typ

Max

Unit

OFFSET VOLTAGE

Total offset, referred to input (RTI) =

VOSI +

OSO

Gain

Differential Offset Voltage

Input Offset Voltage (VOSI)

±3

±14

μV

Output Offset Voltage (VOSO)

±40

±125

μV

Differential Offset Voltage

Drift

TA = −40°C to +105°C1, total offset drift,

RTI = VOSI/T +

OSO

Gain

VOSI/T

±0.03

±0.08

μV/°C

VOSO/T

±0.98

±2.5

μV/°C

Differential Offset Voltage vs.

VDDH and VSSH (Power

Supply Rejection Ratio

(PSRR)), RTI

VDDH − VSSH = 10 V to 56 V

Gain (G) = 1/16 V/V

G = 1 V/V

110

120

G = 128 V/V

140

154

Differential Offset Voltage vs.

AVDD (PSRR), RTI

AVDD − AVSS = 2.7 V to 5.5 V

G = 1/16 V/V

G = 1 V/V

100

G = 128 V/V

118

136

Differential Offset vs. External

Clock Frequency, RTI

Clock frequency = 0.8 MHz to 1.2 MHz

G = 1/16 V/V

±0.2

μV/kHz

G = 1 V/V

±0.1

μV/kHz

G = 128 V/V

±0.002

μV/kHz

COMMON–MODE REJECTION

RATIO (CMRR), RTI

+IN = −IN = −25 V to +25 V, scaling gain = 1 V/V

CMRR to 60 Hz

G = 1/16 V/V

102

G = 1 V/V

116

126

G = 128 V/V

140

150

G = 1/16

TA = −40°C to +105°C1

G = 1

TA = −40°C to +105°C1

112

G = 128

TA = −40°C to +105°C1

136

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