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AD8278ARZ 데이터시트(PDF) 4 Page - Analog Devices

부품명 AD8278ARZ
상세설명  Low Power, Wide Supply Range, Low Cost Difference Amplifier, G = 쩍, 2
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AD8278
Rev. 0 | Page 4 of 24
VS = ±5 V to ±15 V, VREF = 0 V, TA = 25°C, RL = 10 kΩ connected to ground, G = 2 difference amplifier configuration, unless
otherwise noted.
Table 3.
Parameter
Conditions
G = 2
Unit
Grade B
Grade A
Min
Typ
Max
Min
Typ
Max
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
0.6
2
2
5
μV/°C
vs. Power Supply
VS = ±5 V to ±18 V
5
10
μV/V
Common-Mode
Rejection Ratio (RTI)
VS = ±15 V, VCM = ±27 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
120
120
Common Mode
30
30
DYNAMIC PERFORMANCE
Bandwidth
550
550
kHz
Slew Rate
1.1
1.4
1.1
1.4
V/μs
Settling Time to 0.01%
10 V step on output,
CL = 100 pF
10
10
μs
Settling Time to 0.001%
11
11
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
5
10
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
350
350
pF
NOISE5
Output Voltage Noise
f = 0.1 Hz to 10 Hz
2.8
2.8
μV p-p
f = 1 kHz
90
95
90
95
nV/√Hz
POWER SUPPLY
Supply Current6
200
200
μA
vs. Temperature
TA = −40°C to +85°C
250
250
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
section in the The
for details.
Input Voltage Range
ory 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 20
Figure 23
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.
24
Figure 26
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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