AD8221ARZ

更新时间： 2024-02-13 02:48:24

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	718K
描述
Precision Instrumentation Amplifier

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数据手册

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AD8221ARZ 数据手册

AD8221

AR Grade

Typ Max

BR Grade

Parameter

Conditions

Min

Typ

Max

Unit

TEMPERATURE RANGE

Specified Performance

Operating Range⁴

–40

+85

+125

–40

+85

+125

°C

¹Total RTI V_OS= (V_OSI) + (V_OSO/G).

²Does not include the effects of external resistor R_G.

³One input grounded. G = 1.

⁴See Typical Performance Characteristics for expected operation between 85°C to 125°C.

Table 2.

ARM Grade

Parameter

Conditions

Unit

Min

Typ

Max

COMMON-MODE REJECTION RATIO (CMRR)

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

G = 10

G = 100

G = 1000

100

120

130

V_CM= –10 V to +10 V

100

e_NI²+ (e_NO/G)²

RTI noise = √

NOISE

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

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

μV

μV/°C

μV

135

0.9

600

1.00

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

100

120

140

100

120

INPUT CURRENT

Input Bias Current

Over Temperature

Average TC

Input Offset Current

Over Temperature

Average TC

0.5

pA/°C

T = −40°C to +85°C

Rev. B | Page 5 of 24

0.3

1.5

pA/°C

1 2 3 456 7 8...24

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