AD8224_15 datasheet(3/28 Pages) AD

Il numero della parte	AD8224

Spiegazioni elettronici	Precision, Dual-Channel, JFET Input, Rail-to-Rail Instrumentation Amplifier

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Produttore elettronici	AD [Analog Devices]

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3 / 28 page

Data Sheet

AD8224

Rev. C | Page 3 of 28

SPECIFICATIONS

VS+ = +15 V, VS− = −15 V, VREF = 0 V, TA = 25°C, G = 1, RL = 2 kΩ1, unless otherwise noted. Table 2 displays the specifications for an

individual instrumentation amplifier configured for a single-ended output or dual instrumentation amplifiers configured for differential

outputs as shown in Figure 63.

Table 2. Individual Amplifier in Single-Ended Configuration or Dual Amplifiers in Differential Output Configuration2, VS = ±15 V

A Grade

B Grade

Parameter

Test Conditions

Min

Typ

Max

Min

Typ

Max

Unit

COMMON-MODE REJECTION RATIO (CMRR)

CMRR DC to 60 Hz with

1 kΩ Source Imbalance

VCM = ±10 V

G = 1

78

86

dB

G = 10

94

100

dB

G = 100

94

100

dB

G = 1000

94

100

dB

CMRR at 10 kHz

VCM = ±10 V

G = 1

74

80

dB

G = 10

84

90

dB

G = 100

84

90

dB

G = 1000

84

90

dB

NOISE

RTI noise =

√(eni2 + (eno/G)2)

Voltage Noise, 1 kHz

Input Voltage Noise, eni

VIN+, VIN− = 0 V

14

17

nV/√Hz

Output Voltage Noise, eno

VIN+, VIN− = 0 V

90

100

nV/√Hz

RTI, 0.1 Hz to 10 Hz

G = 1

5

µV p-p

G = 1000

0.8

µV p-p

Current Noise

f = 1 kHz

1

fA/√Hz

VOLTAGE OFFSET

RTI VOS =

(VOSI) + (VOSO/G)

Input Offset, VOSI

300

175

µV

Average TC

T = −40°C to +85°C

10

5

µV/°C

Output Offset, VOSO

1200

800

µV

Average TC

T = −40°C to +85°C

10

5

µV/°C

Offset RTI vs. Supply (PSR)

VS = ±5 V to ±15 V

G = 1

86

dB

G = 10

96

100

dB

G = 100

96

100

dB

G = 1000

96

100

dB

INPUT CURRENT

Input Bias Current

25

10

pA

Over Temperature3

T = −40°C to +85°C

300

pA

Input Offset Current

2

0.6

pA

Over Temperature3

T = −40°C to +85°C

5

pA

REFERENCE INPUT

RIN

40

kΩ

IIN

VIN+, VIN− = 0 V

70

µA

Voltage Range

−VS

+VS

−VS

+VS

V

Gain to Output

1 ±

0.0001

1 ±

0.0001

V/V

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