AD8720_08 Datasheet, PDF (9/20 Pages) Analog Devices – Precision Dual-Channel, Difference Amplifier

10
GAIN = 2
5
GAIN = 1
0
–5
GAIN = 0.5
–10
–15
–20
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
Figure 16. Gain vs. Frequency
100M
100
90 GAIN = 2, 0.5
80
GAIN = 1
70
60
50
40
30
20
10
0
10
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
Figure 17. CMRR vs. Frequency
0
CROSSTALK (G = 1)
–20
–40
–60
–80
–100
–120
–140
10
100
1k
10k
FREQUENCY (Hz)
100k
Figure 18. Channel Separation vs. Frequency
AD8270
120
I_SHORT+
100
80
60
40
20
0
–20
–40
–60
I_SHORT–
–80
–100
–120
–40 –20 0
20 40 60 80 100 120
TEMPERATURE (°C)
Figure 19. Short-Circuit Current vs. Temperature
+V_{S +125°C}
+V_S – 2
+V_S – 4
–40°C
+25°C ^+85°C
0
–V_S + 2
+125°C
+85°C
+25°C
–V_S + 4
–40°C
–V_S
200
1k
10k
R_LOAD (Ω)
Figure 20. Output Voltage Swing vs. RLOAD
+V_S
+V_S – 3
–40°C
+25°C
+V_S – 6
0
+125°C
+85°C
–V_S + 6
–V_S + 3
+125°C
+85°C
+25°C
–V_S
0
–40°C
20
40
60
80
100
CURRENT (mA)
Figure 21. Output Voltage Swing vs. Current (IOUT)
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