Analog Devices AD604 , Figure 9. Gain Error vs. VGN for Two Gain Scaling Values , Figure 14. Output Referred Noise vs. VGN for Three Temperatures , Figure 11. Gain Match; VGN1 = VGN2 = 2.50 V , Figure 10. Gain Match; VGN1 = VGN2 = 1.0 V , Figure 12. AC Response for Various Values of VGN , Figure 13. Output Offset vs. VGN for Three Temperatures

AD604
Rev. E | Page 8 of 32
VGN(V)
GAIN ERROR (dB)
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
FREQUENCY(Hz)
GAIN (dB)
50
40
–50
30
20
10
0
–10
–20
–30
–40
100k 1M 10M 100M0.2 0.7 1.2 1.7 2.2 2.7
20dB/V
VREF= 2.5V
30dB/V
VREF= 1.67V
00540-009
Figure 9. Gain Error vs. VGN for Two Gain Scaling Values
DELTA GAIN(d B)
PERCENTAGE
25
20
15
10
5
0
–1.0 –0.8 –0.6 –0.4 –0.2 0.1 0.3 0.5 0. 7 0.9
N=50
VGN1= 1.0V
VGN2= 1.0V
ΔG(dB)=
G(CH1)– G(CH2)
00540-010
Figure 10. Gain Match; VGN1 = VGN2 = 1.0 V
DELTA GAIN(d B)
PERCENTAGE
25
20
15
10
5
0
–1.0 –0.8 –0.6 –0.4 –0.2 0.1 0.3 0.5 0. 7 0.9
N=50
VGN1= 2.50V
VGN2= 2.50V
ΔG(dB)=
G(CH1)– G(CH2)
00540-011
Figure 11. Gain Match; VGN1 = VGN2 = 2.50 V
VGN= 2.9V
VGN= 2.5V
VGN= 1.5V
VGN= 0.5V
VGN= 0.1V
VGN= 0V
00540-012
VGN(V)
2.55
Figure 12. AC Response for Various Values of VGN
VOCM= 2.5V
2.54
2.53
2.52
2.51
2.50
2.49
2.48
2.45
2.46
2.47
–40°C
+25°C
+85°C
V
OUT
(V)
0.2 0.7 1.2 1.7 2.2 2.7
00540-013
210
Figure 13. Output Offset vs. VGN for Three Temperatures
VGN(V)
190
170
150
130
110
90
0.10.50.91.31.72.12.52.9
NOISE (nV/ Hz)
–40°C
+25°C
+85°C
00540-014
Figure 14. Output Referred Noise vs. VGN for Three Temperatures