AD8556ARZ datasheet(4/28 Pages) AD

부품명	AD8556ARZ

상세설명	Digitally Programmable Sensor Signal Amplifier with EMI Filters

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AD8556

Rev. A | Page 4 of 28

SPECIFICATIONS

ELECTRICAL SPECIFICATIONS

VDD = 5.0 V, VSS = 0.0 V, VCM = 2.5 V, VO = 2.5 V, −40°C ≤ TA ≤ +140°C, unless otherwise specified.

Table 1.

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

INPUT STAGE

Input Offset Voltage

VOS

−40°C ≤ TA ≤ +125°C

2

10

μV

−40°C ≤ TA ≤ +140°C

3

12

μV

Input Offset Voltage Drift

TCVOS

25

65

nV/°C

Input Bias Current

IB

TA = 25°C

38

49

54

nA

−40°C ≤ TA ≤ +125°C

58

nA

−40°C ≤ TA ≤ +140°C

60

nA

Input Offset Current

IOS

TA = 25°C

0.2

2.5

nA

−40°C ≤ TA ≤ +125°C

3.0

nA

−40°C ≤ TA ≤ +140°C

4.0

nA

Input Voltage Range

2.1

2.9

V

Common-Mode Rejection Ratio

CMRR

VCM = 2.1 V to 2.9 V, AV = 70

80

92

dB

VCM = 2.1 V to 2.9 V, AV = 1280

94

112

dB

Linearity

VO = 0.2 V to 3.4 V

20

ppm

VO = 0.2 V to 4.8 V

1000

ppm

Differential Gain Accuracy

Second stage gain = 17.5 to 100

0.35

1.6

%

Second stage gain = 140 to 200

0.5

2.5

%

Differential Gain Temperature Coefficient

Second stage gain = 17.5 to 100

7

20

ppm/°C

Second stage gain = 140 to 200

10

40

ppm/°C

RF

14

18

22

kΩ

RF Temperature Coefficient

600

ppm/°C

DAC

Accuracy

AV = 70, offset codes = 8 to 248

0.2

0.6

%

Ratiometricity

AV = 70, offset codes = 8 to 248

50

ppm

Output Offset

AV = 70, offset codes = 8 to 248

5

35

mV

Temperature Coefficient

−40°C ≤ TA ≤ +125°C

3.3

15

ppm FS/°C

−40°C ≤ TA ≤ +140°C

25

ppm FS/°C

VCLAMP

Input Bias Current

TA = 25°C, VCLAMP = 5 V

200

nA

−40°C ≤ TA ≤ +125°C, VCLAMP = 5 V

500

nA

−40°C ≤ TA ≤ +140°C, VCLAMP = 5 V

550

nA

Input Voltage Range

1.2

4.94

V

OUTPUT BUFFER STAGE

Buffer Offset

3

7

mV

Short-Circuit Current

ISC

5

10

mA

Output Voltage, Low

VOL

RL = 10 kΩ to 5 V

20

mV

Output Voltage, High

VOH

RL = 10 kΩ to 0 V

4.94

V

POWER SUPPLY

Supply Current

ISY

−40°C ≤ TA ≤ +125°C, VO = 2.5 V,

VPOS = VNEG = 2.5 V, VDAC code = 128

2.0

2.7

mA

−40°C ≤ TA ≤ +140°C, VO = 2.5 V,

VPOS = VNEG = 2.5 V, VDAC Code = 128

2.78

mA

Power Supply Rejection Ratio

PSRR

AV = 70

109

125

dB

Supply Voltage Required During Programming

10

°C < T

PROG

< 40

°C, supply capable of

driving 250 mA

5.0

5.25

5.5

V

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