AD623_16 datasheet(6/27 Pages) AD

No de pièce	AD623

Description	Single and Dual-Supply, Rail-to-Rail, Low Cost Instrumentation Amplifier

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Fabricant	AD [Analog Devices]

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6 / 27 page

Data Sheet

AD623

Rev. E | Page 5 of 26

DUAL SUPPLIES

Typical at 25°C dual supply, VS = ±5 V, and RL = 10 kΩ, unless otherwise noted.

Table 3.

Test Conditions/

Comments

AD623A

AD623ARM

AD623B

Parameter

Min

Typ

Max

Min

Typ

Max

Min

Typ

Max

Unit

GAIN

G = 1 + (100 k/RG)

Gain Range

1

1000

1

1000

1

1000

Gain Error1

G1 VOUT =

−4.8 V to +3.5 V

G > 1 VOUT =

0.05 V to 4.5 V

G = 1

0.03

0.10

0.03

0.10

0.03

0.05

%

G = 10

0.10

0.35

0.10

0.35

0.10

0.35

%

G = 100

0.10

0.35

0.10

0.35

0.10

0.35

%

G = 1000

0.10

0.35

0.10

0.35

0.10

0.35

%

Nonlinearity

G1 VOUT =

−4.8 V to +3.5 V

G > 1 VOUT =

−4.8 V to +4.5 V

G = 1 to 1000

50

ppm

Gain vs. Temperature

G = 1

5

10

5

10

5

10

ppm/°C

G > 11

50

ppm/°C

VOLTAGE OFFSET

Total RTI error =

VOSI + VOSO/G

Input Offset, VOSI

25

200

500

25

100

μV

Over Temperature

350

650

160

μV

Average Tempco

0.1

2

0.1

2

0.1

1

μV/°C

Output Offset, VOSO

200

1000

500

2000

200

500

μV

Over Temperature

1500

2600

1100

μV

Average Tempco

2.5

10

2.5

10

2.5

10

μV/°C

Offset Referred to the

Input vs. Supply (PSR)

G = 1

80

100

80

100

80

100

dB

G = 10

100

120

100

120

100

120

dB

G = 100

120

140

120

140

120

140

dB

G = 1000

120

140

120

140

120

140

dB

INPUT CURRENT

Input Bias Current

17

25

17

25

17

25

nA

Over Temperature

27.5

nA

Average Tempco

25

pA/°C

Input Offset Current

0.25

2

0.25

2

0.25

2

nA

Over Temperature

2.5

nA

Average Tempco

5

pA/°C

INPUT

Input Impedance

Differential

2||2

GΩ||pF

Common-Mode

2||2

GΩ||pF

Input Voltage Range2

VS =

+2.5 V to ±6 V

(−VS) –

0.15

(+VS) –

1.5

(−VS) –

0.15

(+VS) –

1.5

(−VS) –

0.15

(+VS) –

1.5

V

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