Datasheet

Data Sheet AD737
Rev. I | Page 9 of 24
V
IN
= 200mV rms
C
AV
= 100µF
C
F
= 22µF
–0.8
–0.6
–0.2
–0.4
0
0.4
0.2
0.6
0.8
–60 –20–40 200 60 80 100 12040 140
TEMPERATURE (°C)
ADDITIONAL ERROR (% of Reading)
00828-011
Figure 10. Additional Error vs. Temperature
0
200
100
400
300
500
0 0.2 0.4 0.6 0.8 1.0
RMS INPUT LEVEL (V)
DC SUPPLY CURRENT (µA)
00828-012
Figure 11. DC Supply Current vs. RMS Input Level
10µV
100µV
1mV
10mV
100 1k 10k 100k
–3dB FREQUENCY (Hz)
INPUT LEVEL (rms)
00828-013
AC-COUPLED
Figure 12. RMS Input Level vs. –3 dB Frequency; Negative DC Output
–2.5
–2.0
–1.5
–1.0
–0.5
0
0.5
1.0
10mV 100mV 1V 2V
INPUT LEVEL (rms)
ERROR (% of Reading)
00828-014
C
AV
= 22µF, C
C
= 47µF,
C
F
= 4.7µF
Figure 13. Error vs. RMS Input Level Using Circuit in Figure 29
1
10
100
10 100 1k
FREQUENCY (Hz)
AVERAGING CAPACITOR (µF)
00828-015
–1%
–0.5%
V
IN
= 200mV rms
C
C
= 47µF
C
F
= 47µF
Figure 14. Value of Averaging Capacitor vs. Frequency
for Specified Averaging Error
1mV
10mV
100mV
1V
1 10 100 1k
FREQUENCY (Hz)
INPUT LEVEL (rms)
00828-016
AC-COUPLED
C
AV
= 10µF, C
C
= 47µF,
C
F
= 47µF
–0.5%
–1%
Figure 15. RMS Input Level vs. Frequency for Specified Averaging Error