AD8270
Rev. 0 | Page 3 of 20
SPECIFICATIONS
DIFFERENCE AMPLIFIER CONFIGURATIONS
VS = ±15 V, VREF = 0 V, TA = 25°C, RLOAD = 2 kΩ, specifications referred to input, unless otherwise noted.
Table 2.
G = 0.5
G = 1
G = 2
Parameter
Conditions
Min
Typ
Max
Min
Typ
Max
Min
Typ
Max
Unit
DYNAMIC PERFORMANCE
Bandwidth
20
15
10
MHz
Slew Rate
30
V/μs
Settling Time to 0.01%
10 V step on output
700
800
700
800
700
800
ns
Settling Time to 0.001%
10 V step on output
750
900
750
900
750
900
ns
NOISE/DISTORTION
Harmonic Distortion
f = 1 kHz, VOUT = 10 V p-p,
RLOAD = 600 Ω
84
145
95
dB
f = 0.1 Hz to 10 Hz
2
1.5
1
μV p-p
f = 1 kHz
52
38
26
nV/√Hz
GAIN
Gain Error
0.08
%
Gain Drift
TA = 40°C to +85°C
1
10
1
10
1
10
ppm/°C
INPUT CHARACTERISTICS
450
1500
300
1000
225
750
μV
Average Temperature Drift
TA = 40°C to +85°C
3
2
1.5
μV/°C
Common-Mode Rejection
Ratio
DC to 1 kHz
70
86
76
92
80
98
dB
Power Supply Rejection Ratio
2
10
2
10
2
10
μV/V
15.4
+15.4
15.4
+15.4
15.4
+15.4
V
7.5
10
7.5
kΩ
Bias Current
500
nA
OUTPUT CHARACTERISTICS
Output Swing
13.8
+13.8
13.8
+13.8
13.8
+13.8
V
TA = 40°C to +85°C
13.7
+13.7
13.7
+13.7
13.7
+13.7
V
Short-Circuit Current Limit
Sourcing
100
mA
Sinking
60
mA
POWER SUPPLY
Supply Current
(per Amplifier)
2.3
2.5
2.3
2.5
2.3
2.5
mA
TA = 40°C to +85°C
3
mA
1 Includes amplifier voltage and current noise, as well as noise of internal resistors.
2 Includes input bias and offset errors.
3 At voltages beyond the rails, internal ESD diodes begin to turn on. In some configurations, the input voltage range may be limited by the internal op amp (see the
4 Internal resistors are trimmed to be ratio matched but have ±20% absolute accuracy. Common
-mode resistance was calculated with both inputs in parallel. Common-
mode impedance at only one input is 2× the resistance listed.