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AD8278BRZ Folha de dados(PDF) 6 Page - Analog Devices

Nome de Peças AD8278BRZ
Descrição Electrónicos  Low Power, Wide Supply Range, Low Cost Difference Amplifiers,
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Fabricante Electrônico  AD [Analog Devices]
Página de início  http://www.analog.com
Logo AD - Analog Devices

AD8278BRZ Folha de dados(HTML) 6 Page - Analog Devices

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AD8278/AD8279
Rev. C | Page 6 of 24
VS = +2.7 V to <±5 V, VREF = midsupply, TA = 25°C, RL = 10 kΩ connected to midsupply, G = 2 difference amplifier configuration, unless
otherwise noted.
Table 5.
G = 2
Grade B
Grade A
Parameter
Conditions
Min
Typ
Max
Min
Typ
Max
Unit
INPUT CHARACTERISTICS
System Offset1
150
300
150
500
μV
Over Temperature
TA = −40°C to +85°C
300
500
μV
vs. Power Supply
VS = ±5 V to ±18 V
5
10
μV/V
Average Temperature
Coefficient
TA = −40°C to +85°C
0.6
2
3
5
μV/°C
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
−1.5 (VS + 0.1)
+1.5 (VS − 1.5)
−1.5 (VS + 0.1)
+1.5 (VS − 1.5)
V
Impedance3
Differential
30
30
Common Mode
30
30
DYNAMIC PERFORMANCE
Bandwidth
450
450
kHz
Slew Rate
1.3
1.3
V/μs
Channel Separation
f = 1 kHz
130
130
dB
Settling Time to 0.01%
2 V step on output,
CL = 100 pF, VS = 2.7 V
9
9
μs
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
±10
mA
Capacitive Load Drive
200
200
pF
NOISE5
Output Voltage Noise
f = 0.1 Hz to 10 Hz
2.8
2.8
μV p-p
f = 1 kHz
94
100
94
100
nV/√Hz
POWER SUPPLY6
AD8278 Supply Current
TA = −40°C to +85°C
200
200
μA
AD8279 Supply Current
TA = −40°C to +85°C
375
375
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 for details.
Input Voltage Range
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 22
Figure 25
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.
27
Figure 28


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