Datasheet > AD8221AC-P7

AD8221AC-P7

更新时间： 2022-04-21 15:35:04

品牌	Logo	应用领域
亚德诺 - ADI		仪表放大器
页数	文件大小	规格书
24页	512K
描述
Precision Instrumentation Amplifier

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AD8221AC-P7 数据手册

AD8221

SPECIFICATIONS

V_S= ±±1 V, V_REF= 0 V, T_A= 21°C, G = ±, R_L= 2 kΩ, unless otherwise noted.

Table 1.

AR Grade

BR Grade

Parameter

Conditions

Min

Typ

Max

Min

Typ

Max

Unit

COMMON-MODE REJECTION RATIO

CMRR DC to 60 Hz with 1 kΩ

Source Imbalance

V_CM= −10 V to +10 V

G = 1

G = 10

G = 100

G = 1000

CMRR at 10 kHz

G = 1

100

120

130

110

130

140

V_CM= −10 V to +10 V

100

G = 10

100

110

G = 100

G = 1000

NOISE

RTI noise =

e_NI²+ (e_NO/G)²

√

Voltage Noise, 1 kHz

Input Voltage Noise, e_NI

Output Voltage Noise, e_NO

RTI

V_IN+, V_IN−, V_REF= 0

nV/√Hz

f = 0.1 Hz to 10 Hz

G = 1

G = 10

G = 100 to 1000

Current Noise

μV p-p

fA/√Hz

pA p-p

0.5

0.25

0.5

0.25

f = 1 kHz

f = 0.1 Hz to 10 Hz

VOLTAGE OFFSET¹

Input Offset, V_OSI

Over Temperature

Average TC

Output Offset, V_OSO

Over Temperature

Average TC

V_S= 5 V to 15 V

T = −40°C to +85°C

0.4

300

0.66

0.3

200

0.45

μV

μV/°C

μV

V_S= 5 V to 15 V

T = −40°C to +85°C

μV/°C

Offset RTI vs. Supply (PSR)

G = 1

G = 10

G = 100

G = 1000

V_S= 2.3 V to 18 V

110

120

130

140

110

130

140

150

110

124

130

114

130

140

INPUT CURRENT

Input Bias Current

Over Temperature

Average TC

Input Offset Current

Over Temperature

Average TC

0.5

1.5

2.0

0.2

0.4

pA/°C

T = −40°C to +85°C

0.2

0.1

0.6

0.8

0.4

0.6

pA/°C

REFERENCE INPUT

R_IN

I_IN

Voltage Range

Gain to Output

kΩ

μA

V_IN+, V_IN−, V_REF= 0

+V_S

0.0001

+V_S

0.0001

–V_S

V/V

Rev. C | Page 3 of 24

1 234 5 6 7...24

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