AD8279 Просмотр технического описания (PDF) - Analog Devices
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AD8279 Datasheet PDF : 18 Pages
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AD8279
Preliminary Technical Data
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
INPUT CHARACTERISTICS
System Offset1
vs. Temperature
Average Temperature
Coefficient
vs. Power Supply
Common-Mode
Rejection Ratio (RTI)
Input Voltage Range2
Impedance3
Differential
Common Mode
DYNAMIC PERFORMANCE
Bandwidth
Slew Rate
Settling Time to 0.01%
Settling Time to 0.001%
Channel Separation
GAIN
Gain Error
Gain Drift
Conditions
G=2
Grade B
Grade A
Min
Typ Max
Min
Typ Max
TA = −40°C to +85°C
100 200
200
100 500
500
TA = −40°C to +85°C
0.6
VS = ±5 V to ±18 V
VS = ±15 V, VCM = ±27 V,
RS = 0 Ω
86
−1.5(VS + 0.1)
2
2
5
80
+1.5(VS − 1.5) −1.5(VS + 0.1)
5
10
+1.5(VS − 1.5)
120
120
30
30
1.1
10 V step on output,
CL = 100 pF
f = 1 kHz
550
1.4
10
11
130
550
1.1
1.4
10
11
130
TA = −40°C to +85°C
0.005 0.02
1
0.01 0.05
5
Gain Nonlinearity
OUTPUT CHARACTERISTICS
Output Voltage Swing4
Short-Circuit Current
Limit
Capacitive Load Drive
NOISE5
Output Voltage Noise
POWER SUPPLY
Supply Current6
vs. Temperature
Operating Voltage
Range7
TEMPERATURE RANGE
Operating Range
VOUT = 20 V p-p
VS = ±15 V, RL = 10 kΩ
TA = −40°C to +85°C
f = 0.1 Hz to 10 Hz
f = 1 kHz
TA = −40°C to +85°C
−VS + 0.2
±2
−40
5
+VS − 0.2
±15
350
2.8
90 95
200
250
±18
+125
−VS + 0.2
±2
−40
10
+VS − 0.2
±15
350
2.8
90 95
200
250
±18
+125
Unit
μV
μV
μV/°C
μV/V
dB
V
kΩ
kΩ
kHz
V/μs
μs
μs
dB
%
ppm/°
C
ppm
V
mA
pF
μV p-p
nV/√Hz
μA
μA
V
°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 Input Voltage Range section in the Theory of
Operation for details.
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 Figure 19 through Figure 22 for details.
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 23 and Figure 25 for details.
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.
Rev. PrA | Page 4 of 18
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