AD8277 datasheet(4/20 Pages) AD

部件名	AD8277

功能描述	Low Power, Wide Supply Range, Low Cost Unity-Gain Difference Amplifiers

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AD8276/AD8277

Rev. A | Page 4 of 20

VS = +2.7 V to <±5 V, VREF = midsupply, TA = 25°C, RL = 10 kΩ connected to midsupply, G = 1 difference amplifier configuration, unless

otherwise noted.

Table 3.

G = 1

Grade B

Grade A

Parameter

Conditions

Min

Typ

Max

Min

Typ

Max

Unit

INPUT CHARACTERISTICS

System Offset1

100

200

100

500

μV

vs. Temperature

TA = −40°C to +85°C

200

500

μV

Average Temperature

Coefficient

TA = −40°C to +85°C

0.5

2

5

μV/°C

vs. Power Supply

VS = ±5 V to ±18 V

5

10

μV/V

Common-Mode Rejection

Ratio (RTI)

VS = 2.7 V, VCM = 0 V

to 2.4 V, RS = 0 Ω

86

80

dB

VS = ±5 V, VCM = −10 V

to +7 V, RS = 0 Ω

86

80

dB

Input Voltage Range2

−2(VS + 0.1)

+2(VS − 1.5)

−2(VS + 0.1)

+2(VS − 1.5)

V

Impedance3

Differential

80

kΩ

Common Mode

40

kΩ

DYNAMIC PERFORMANCE

Bandwidth

450

kHz

Slew Rate

1.0

V/μs

Settling Time to 0.01%

8 V step on output,

CL = 100 pF, VS = 10 V

5

μs

Channel Separation

f = 1 kHz

130

dB

GAIN

Gain Error

0.005

0.02

0.01

0.05

%

Gain Drift

TA = −40°C to +85°C

1

5

ppm/°C

OUTPUT CHARACTERISTICS

Output Swing4

RL = 10 kΩ ,

TA = −40°C to +85°C

−VS + 0.1

+VS − 0.15

−VS + 0.1

+VS − 0.15

V

Short-Circuit Current

Limit

±10

mA

Capacitive Load Drive

200

pF

NOISE5

Output Voltage Noise

f = 0.1 Hz to 10 Hz

2

μV p-p

f = 1 kHz

65

nV/√Hz

POWER SUPPLY

Supply Current6

TA = −40°C to +85°C

200

μA

Operating Voltage

Range

2.0

36

2.0

36

V

TEMPERATURE RANGE

Operating Range

−40

+125

−40

+125

°C

1 Includes input bias and offset current errors, RTO (referred to output).

2 The input voltage range may also be limited by absolute maximum input voltage or by the output swing. See the

section in the

section for details.

Input Voltage Range

Theory of Operation

3 Internal resistors are trimmed to be ratio matched and have ±20% absolute accuracy.

4 Output voltage swing varies with supply voltage and temperature. See Figur

through

for details.

e 18

Figure 21

5 Includes amplifier voltage and current noise, as well as noise from internal resistors.

6 Supply current varies with supply voltage and temperature. See Figure

and

for details.

23

Figure 24

类似零件编号 - AD8277

制造商	部件名	数据表	功能描述
Analog Devices	AD8277	513Kb / 24P	Low Power, Wide Supply Range, Low Cost Difference Amplifiers, REV. C
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