Datasheet

AD8278/AD8279
Rev. C | Page 9 of 24
TYPICAL PERFORMANCE CHARACTERISTICS
V
S
= ±15 V, T
A
= 25°C, R
L
= 10 kΩ connected to ground, G = ½ difference amplifier configuration, unless otherwise noted.
600
500
400
300
200
100
0
–150 –100 –50 0 50 100 150
NUMBER OF HITS
SYSTEM OFFSET VOLTAGE (µV)
08308-005
N = 3840
MEAN = –16.8
SD = 41.7673
Figure 7. Distribution of Typical System Offset Voltage, G = 2
800
600
700
500
400
300
200
100
0
–60 –40 –20 0 20 40 60
NUMBER OF HITS
CMRR (µV/V)
08308-006
N = 3837
MEAN = 7.78
SD = 13.569
Figure 8. Distribution of Typical Common-Mode Rejection, G = 2
10
–20
–15
–10
–5
0
5
–50–35–20–5102540557085
CMRR (µV/V)
TEMPERATURE (°C)
08308-007
REPRESENTATIVE DATA
Figure 9. CMRR vs. Temperature, Normalized at 25°C, G = ½
80
–100
–80
–60
–40
–20
0
20
40
60
–50 –35 –20 –5 10 25 40 55 70 85
SYSTEM OFFSET (µV)
TEMPERATURE (°C)
REPRESENTATIVE DATA
08308-008
Figure 10. System Offset vs. Temperature, Normalized at 25°, G = ½
20
–30
–25
–20
–15
–10
–5
0
5
10
15
–50 –35 –20 –5 10 25 40 55 70 85
GAIN ERROR (µV/V)
TEMPERATURE (°C)
REPRESENTATIVE DATA
08308-009
Figure 11. Gain Error vs. Temperature, Normalized at 25°C, G = ½
30
–30
–20
–10
0
10
20
–20 –15 –10 –5 0 5 10 15 20
COMMON-MODE VOLTAGE (V)
OUTPUT VOLTAGE (V)
V
S
= ±15V
V
S
= ±5V
08308-010
Figure 12. Input Common-Mode Voltage vs. Output Voltage,
±15 V and ±5 V Supplies, G = ½