Datasheet > AD8270_08

AD8270_08

更新时间： 2022-04-23 23:00:11

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	606K
描述
Precision Dual-Channel, Difference Amplifier

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AD8270_08 数据手册

AD8270

SPECIFICATIONS

DIFFERENCE AMPLIFIER CONFIGURATIONS

V_S= 15 V, V_REF= 0 V, T_A= 25°C, R_LOAD= 2 kΩ, specifications referred to input, unless otherwise noted.

Table 2.

G = 0.5

G = 1

G = 2

Parameter

Conditions

Min

Typ Max

Min

Typ Max

Min

Typ Max

Unit

DYNAMIC PERFORMANCE

Bandwidth

Slew Rate

Settling Time to 0.01%

Settling Time to 0.001%

NOISE/DISTORTION

Harmonic Distortion

MHz

V/μs

10 V step on output

700 800

750 900

700 800

750 900

700 800

750 900

f = 1 kHz, V_OUT= 10 V p-p,

R_LOAD= 600 Ω

f = 0.1 Hz to 10 Hz

f = 1 kHz

145

Voltage Noise¹

1.5

μV p-p

nV/√Hz

GAIN

Gain Error

0.08

Gain Drift

T_A= −40°C to +85°C

ppm/°C

INPUT CHARACTERISTICS

Offset²

450 1500

300 1000

225 750

μV

Average Temperature Drift T_A= −40°C to +85°C

1.5

μV/°C

Common-Mode Rejection

Ratio

DC to 1 kHz

Power Supply Rejection Ratio

Input Voltage Range³

Common-Mode Resistance⁴

Bias Current

+15.4

μV/V

kΩ

−15.4

+15.4 −15.4

7.5

500

OUTPUT CHARACTERISTICS

Output Swing

−13.8

−13.7

+13.8 −13.8

+13.7 −13.7

+13.8 −13.8

+13.7 −13.7

+13.8

+13.7

T_A= −40°C to +85°C

Sourcing

Sinking

Short-Circuit Current Limit

100

POWER SUPPLY

Supply Current

(per Amplifier)

2.3

2.5

2.3

2.5

2.3

2.5

T_A= −40°C to +85°C

¹Includes amplifier voltage and current noise, as well as noise of internal resistors.

²Includes input bias and offset errors.

³At voltages beyond the rails, internal ESD diodes begin to turn on. In some configurations, the input voltage range may be limited by the internal op amp (see the

Input Voltage Range section for details).

⁴Internal resistors are trimmed to be ratio matched but have 20% absolute accuracy. Common-mode resistance was calculated with both inputs in parallel. Common-

mode impedance at only one input is 2× the resistance listed.

Rev. 0 | Page 3 of 20

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