AD8251 datasheet(3/8 Pages) AD

Il numero della parte	AD8251

Spiegazioni elettronici	12MHz 20V/us G=1,2,4,8 Programmable Gain iCMOS Instrumentation Amplifier

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Produttore elettronici	AD [Analog Devices]

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Preliminary Technical Data

AD8251

Rev. PrB| Page 3 of 8

AD8251—SPECIFICATIONS

Table 1. VS = ±12 V, VREF = 0 V (@TA = 25oC, G = +1, RL = 2 kΩ, unless otherwise noted.)

AD8251ARM

Parameter

Conditions

Min

Typ

Max

Unit

COMMON-MODE REJECTION RATIO

(CMRR)

CMRR to 60 Hz with 1 k

Ω Source

Imbalance

VCM = -10 V to +10 V

G = 1

80

dB

G = 2

86

dB

G = 4

92

dB

G = 8

98

dB

CMRR to 50kHz

VCM = -10 V to +10 V

G = 1

80

dB

G = 2

dB

G = 4

dB

G = 8

dB

NOISE

Voltage Noise, 1kHz

G=1

32

nV/√Hz

G=2

20

nV/√Hz

G=4

15

nV/√Hz

G=8

13

nV/√Hz

RTI, 0.1 Hz to 10 Hz

G=1

μV p-p

G=2

μV p-p

G=4

μV p-p

G=8

μV p-p

Current Noise

f = 1kHz

fA/√Hz

VOLTAGE OFFSET

Offset, VOS

G=1, VS =

±5 V to ±12 V

250

μV

Over Temperature

T = -40

°C to +85°C

μV

Average TC

T = -40

°C to +85°C

μV/°C

Offset, VOS

G=2, VS =

±5 V to ±12 V

150

μV

Over Temperature

T = -40

°C to +85°C

μV

Average TC

T = -40

°C to +85°C

μV/°C

Offset, VOS

G=4, VS =

±5 V to ±12 V

100

μV

Over Temperature

T = -40

°C to +85°C

μV

Average TC

T = -40

°C to +85°C

μV/°C

Offset, VOS

G=8, VS =

±5 V to ±12 V

75

μV

Over Temperature

T = -40

°C to +85°C

μV

Average TC

T = -40

°C to +85°C

μV/°C

Offset Referred to the Input vs.

Supply (PSR)

VS =

±8 V to ±12 V

G = 1

115

dB

G = 2

110

dB

G = 4

110

dB

G = 8

96

110

dB

INPUT CURRENT

Input Bias Current

10

25

nA

Over Temperature

T = -40

°C to +85°C

35

nA

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