AD712
100
80
OPEN LOOP GAIN – dB
100
80
OPEN LOOP GAIN – dB
PHASE MARGIN – C
125
110
120
POWER SUPPLY REJECTION – dB
100
+ SUPPLY
80
60
40
GAIN
PHASE
2k
100pF
LOAD
60
40
115
R
L
= 2k
25 C
60
– SUPPLY
V
S
= 15V SUPPLIES
WITH 1V p-p SINE
WAVE 25 C
110
105
40
20
20
0
–20
10
0
–20
10M
100
95
0
5
10
SUPPLY VOLTAGE
15
Volts
20
20
100
1k
10k
100k
FREQUENCY – Hz
1M
0
10
100
1k
10k
100k
1M
SUPPLY MODULATION FREQUENCY – Hz
Figure 10. Open-Loop Gain and
Phase Margin vs. Frequency
Figure 11. Open-Loop Gain vs.
Supply Voltage
Figure 12. Power Supply Rejection
vs. Frequency
100
OUTPUT VOLTAGE – Volts p–p
30
VOLTS
OUTPUT SWING FROM 0V TO
R
L
= 2k
25 C
V
S
= 15V
10
8
6
4
2
0
–2
–4
–6
–8
–10
0.5
0.6
0.7
0.8
0.9
SETTLING TIME – s
1.0
ERROR 1% 0.1% 0.01%
1% 0.1% 0.01%
80
V
S
= 15V
V
CM
= 1Vp-p
25 C
25
20
CMR – dB
60
15
40
10
20
5
0
100k
0
10
100
1k
10k
100k
FREQUENCY – Hz
1M
1M
INPUT FREQUENCY – Hz
10M
Figure 13. Common Mode Rejec-
tion vs. Frequency
Figure 14. Large Signal Frequency
Response
Figure 15. Output Swing and Error
vs. Settling Time
–70
1k
25
–80
3V RMS
R
L
= 2k
C
L
= 100pF
INPUT NOISE VOLTAGE – nV/ Hz
20
100
–90
SLEW RATE – V/ s
1
10
100
1k
FREQUENCY – Hz
10k
100k
THD – dB
15
–100
10
–110
10
5
–120
–130
100
1
1k
10k
FREQUENCY – Hz
100k
0
0
100 200 300 400 500 600 700 800 900
INPUT ERROR SIGNAL – mV
(AT SUMMING JUNCTION)
Figure 16. Total Harmonic Distor-
tion vs. Frequency
Figure 17. Input Noise Voltage
Spectral Density
Figure 18. Slew Rate vs. Input
Error Signal
REV. B
–5–
AD [ ANALOG DEVICES ]
