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AD8278BRMZ датащи(PDF) 3 Page - Analog Devices

номер детали AD8278BRMZ
подробное описание детали  Low Power, Wide Supply Range, Low Cost Difference Amplifiers,
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производитель  AD [Analog Devices]
домашняя страница  http://www.analog.com
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AD8278BRMZ датащи(HTML) 3 Page - Analog Devices

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AD8278/AD8279
Rev. C | Page 3 of 24
SPECIFICATIONS
VS = ±5 V to ±15 V, VREF = 0 V, TA = 25°C, RL = 10 kΩ connected to ground, G = ½ difference amplifier configuration, unless
otherwise noted.
Table 2.
G = ½
Grade B
Grade A
Parameter
Conditions
Min
Typ
Max
Min
Typ
Max
Unit
INPUT CHARACTERISTICS
System Offset1
50
100
50
250
μV
Over Temperature
TA = −40°C to +85°C
100
250
μV
vs. Power Supply
VS = ±5 V to ±18 V
2.5
5
μV/V
Average Temperature
Coefficient
TA = −40°C to +85°C
0.3
1
2
5
μV/°C
Common-Mode Rejection
Ratio (RTI)
VS = ±15 V, VCM = ±27 V,
RS = 0 Ω
80
74
dB
Input Voltage Range2
−3 (VS + 0.1)
+3 (VS − 1.5)
−3 (VS + 0.1)
+3 (VS − 1.5)
V
Impedance3
Differential
120
120
Common Mode
30
30
DYNAMIC PERFORMANCE
Bandwidth
1
1
MHz
Slew Rate
1.1
1.4
1.1
1.4
V/μs
Channel Separation
f = 1 kHz
130
130
dB
Settling Time to 0.01%
10 V step on output,
CL = 100 pF
9
9
μs
Settling Time to 0.001%
10
10
μs
GAIN
Gain Error
0.005
0.02
0.01
0.05
%
Gain Drift
TA = −40°C to +85°C
1
5
ppm/°C
Gain Nonlinearity
VOUT = 20 V p-p
7
12
ppm
OUTPUT CHARACTERISTICS
Output Voltage Swing4
VS = ±15 V, RL = 10 kΩ
TA = −40°C to +85°C
−VS + 0.2
+VS − 0.2
−VS + 0.2
+VS − 0.2
V
Short-Circuit Current Limit
±15
±15
mA
Capacitive Load Drive
200
200
pF
NOISE5
Output Voltage Noise
f = 0.1 Hz to 10 Hz
1.4
1.4
μV p-p
f = 1 kHz
47
50
47
50
nV/√Hz
POWER SUPPLY6
AD8278 Supply Current
200
200
μA
Over Temperature
TA = −40°C to +85°C
250
250
μA
AD8279 Supply Current
300
350
300
350
μA
Over Temperature
TA = −40°C to +85°C
400
400
μA
Operating Voltage Range7
±2
±18
±2
±18
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
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.
26
Figure 28
7 Unbalanced dual supplies can be used, such as −VS = −0.5 V and +VS = +2 V. The positive supply rail must be at least 2 V above the negative supply and reference
voltage.


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