AD628_07 Datasheet, PDF (10/20 Pages) Analog Devices – High Common-Mode Voltage, Programmable Gain Difference Amplifier

AD628
1s
100
90
10
0
0
5
10
TIME (Seconds)
Figure 11. 0.1 Hz to 10 Hz Voltage Noise, RTI
60
50
G = +100
40
30
G = +10
20
10
G = +1
0
–10
G = +0.1
–20
–30
–40
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
Figure 12. Small Signal Frequency Response,
VOUT = 200 mV p-p, G = +0.1, +1, +10, and +100
60
50
G = +100
40
30
G = +10
20
10
G = +1
0
–10
G = +0.1
–20
–30
–40
10
100
1k
10k
100k
1M
FREQUENCY (Hz)
Figure 13. Large Signal Frequency Response,
VOUT = 20 V p-p, G = +0.1, +1, +10, and +100
40
9638 UNITS
35
30
25
20
15
10
5
0
0 1 2 3 4 5 6 7 8 9 10
GAIN ERROR (ppm)
Figure 14. Typical Distribution of +1 Gain Error
150
100
50
0 +25°C
–40°C
+85°C
UPPER CMV LIMIT
V_REF = 0V
–50
–100
+85°C
–40°C
LOWER CMV LIMIT
–150
0
5
10
15
20
V_S (±V)
Figure 15. Common-Mode Operating Range vs.
Power Supply Voltage for Three Temperatures
500µV
100
90
V_S = ±15V
R_L = 1kΩ
R_L = 2kΩ
R_L = 10kΩ
10
0
4.0V
OUTPUT VOLTAGE (V)
Figure 16. Normalized Gain Error vs. VOUT, VS = ±15 V
Rev. G | Page 10 of 20