Datasheet > AD628ARM-REEL7

AD628ARM-REEL7

更新时间： 2022-12-11 21:12:01

品牌	Logo	应用领域
亚德诺 - ADI		放大器
页数	文件大小	规格书
20页	247K
描述
High Common-Mode Voltage Programmable Gain Difference Amplifier

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数据手册

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AD628ARM-REEL7 数据手册

AD628

T_A= 25°C, V_S= +5 V, R_L= 2 kΩ, R_EXT1= 10 kΩ, R_EXT2= ∞, V_REF= +2.5 unless otherwise noted.

Table 2.

AD628AR

Typ

AD628ARM

Typ Max Unit

Parameter

Conditions

Min

Max Min

DIFF AMP + OUTPUT AMP

Gain Equation

Gain Range

G = +0.1(1+ R_EXT1/R_EXT2).

See Figure 29.

V_OCM= 2.25 V. RTI of input pins².

Output Amp G = +1.

V/V

+3.0 mV

0.1¹

−3.0

100

+3.0 −3.0

0.1¹

100

Offset Voltage

vs. Temperature

CMRR

µV/°C

(µV/V)/°C

RTI of input pins. G = 0.1 to 100.

500 Hz.

Minimum CMRR Over Temperature −40°C to +85°C.

vs. Temperature

PSRR (RTI)

V_S= 4.5 V to 10 V.

Input Voltage Range

Common Mode³

Differential

−12

−15

+17 −12

+15 −15

+17

+15

Dynamic Response

Small Signal BW –3 dB

Full Power Bandwidth

Settling Time

G = +0.1.

440

kHz

µs

G = +0.1, to 0.01%, 30 V step.

Slew Rate

0.3

V/µs

Noise (RTI)

Spectral Density

1 kHz.

0.1 Hz to 10 Hz.

350

nV/√Hz

µV p-p

DIFF-AMP

Gain

Error

0.1

V/V

ppm

–0.1

−2.5

+0.01 +0.1 –0.1

+0.01 +0.1

Nonlinearity

vs. Temperature

Offset Voltage

vs. Temperature

Input Impedance

Differential

Common Mode

CMRR

RTI of input pins.

+2.5 −2.5

+2.5 mV

µV/°C

220

kΩ

RTI of input pins. G = +0.1 to +100. 75

500 Hz.

Minimum CMRR Over Temperature −40°C to +85°C.

vs. Temperature

Output Resistance

Error

(µV/V)/°C

kΩ

−0.1

+0.1 −0.1

+0.1

OUTPUT AMPLIFIER

Gain Equation

Nonlinearity

Output Offset Voltage

vs. Temperature

Output Voltage Swing

G = (1 + R_EXT1/R_EXT2).

G = +1, V_OUT= 1 V to 4 V.

RTI of output amp.

V/V

ppm

0.15 mV

0.5

−0.15

0.15 −0.15

0.6

4.1

0.6

4.1

µV/°C

R_L= 10 kΩ.

R_L= 2 kΩ.

0.9

Bias Current

Offset Current

CMRR

1.5

0.2

0.5

1.5

0.2

0.5

V_CM= 1 V to 4 V.

V_OUT= 1 V to 4 V.

130

Open-Loop Gain

Rev. C | Page 5 of 20

1 2 3 456 7 8...20

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