Datasheet

AD8338 Data Sheet
Rev. A | Page 8 of 20
Figure 16. CMRR vs. Frequency over Gain, Offset Null On,
Referred to Input
Figure 17. Output Referred Noise vs. V
GAIN
Figure 18. Input Referred Noise vs. V
GAIN
Figure 19. Input Referred Noise vs. Frequency
Figure 20. Harmonic Distortion vs. Frequency
Figure 21. Harmonic Distortion vs. Output Amplitude
0
–100
–90
–80
–70
–60
–50
–40
–30
–20
–10
10k 100k 1M 10M
CMRR (dB)
FREQUENCY (Hz)
0dB
20dB
40dB
60dB
80dB
11279-115
100k
10k
1k
100
0 0.4 0.8 1.20.3 0.7 1.10.2 0.6 1.00.1 0.5 0.9
NOISE (nV/ Hz)
V
GAIN
(V)
11279-017
+85°C
–40°C
+25°C
1k
1
10
100
0 1.21.11.00.90.80.70.60.50.40.30.20.1
NOISE (nV/ Hz)
V
GAIN
(V)
11279-119
+85°C
–40°C
+25°C
1k
0.1
1
10
100
10k 100k 1M 100M10M
NOISE (nV/ Hz)
FREQUENCY (Hz)
11279-117
GAIN = 1, OFSN DISABLED
GAIN = 10, OFSN DISABLED
GAIN = 100, OFSN DISABLED
GAIN = 1000, OFSN ENABLED
GAIN = 10000, OFSN ENABLED
0
–90
–80
–70
–60
–50
–40
–30
–20
–10
50k 500k 5M
HARMONIC DISTORTION (dBc)
FREQUENCY (Hz)
HD2, 1kΩ
HD3, 1kΩ
HD2, 10kΩ
HD3, 10kΩ
V
OUT
= 0.5V p-p
11279-118
0
–10
–20
–30
–40
–50
–60
–70
–80
0.5 3.02.52.01.51.0
HARMONIC DISTORTION (dBc)
V
OUT
(V p-p)
HD2
HD3
11279-120