Datasheet

AD8337
Rev. C | Page 9 of 32
10
–10
–800 800
05575-015
V
GAIN
(mV)
OFFSET VOLTAGE (mV)
V
S
= ±5V
V
S
= ±2.5V
+85°C
+25°C
–40°C
–8
–6
–4
–2
0
2
4
6
8
–600 –400 –200 0 200 400 600
Figure 15. Offset Voltage vs. V
GAIN
at Three Temperatures
(See Figure 48)
OUTPUT OFFSET VOLTAGE (mV)
0
80
40
20
30
10
70
50
60
500 UNITS
V
GAIN
= –0.4V
V
GAIN
=0V
V
GAIN
= +0.4V
% OF UNITS
–15 –10 –5 0 5 10 15 20 25
05575-016
Figure 16. Output Offset Voltage Histogram for Three Values of V
GAIN
1k
0.1
1M 500M
05575-017
FREQUENCY (Hz)
IMPEDANCE (Ω)
1
100
10
100M10M
V
S
= ±2.5V
V
S
= ±5V
Figure 17. VGA Output Impedance vs. Frequency
(See Figure 49)
40
15
–800 800
05575-018
V
GAIN
(mV)
NOISE (nV/√Hz)
25
0
20
30
–600 –200–400 400 600200
35
+85°C
+25°C
–40°C
Figure 18. Output-Referred Noise vs. V
GAIN
at Three Temperatures
(See Figure 50)
25
0
–800 800
05575-019
V
GAIN
(mV)
NOISE (nV/√Hz)
10
0
5
15
–600 –200–400 400 600200
20
+85°C
+25°C
–40°C
Figure 19. Short-Circuit, Input-Referred Noise at Three Temperatures
(See Figure 50)
7
0
100k 100M
05575-020
FREQUENCY (Hz)
NOISE (nV/√Hz)
2
3
5
6
4
1M 10M
1
PREAMP GAIN = +2
PREAMP GAIN = –1
V
GAIN
= 0.7V
R
FB1
= R
FB2
= 100Ω
Figure 20. Short-Circuit, Input-Referred Noise vs. Frequency at Maximum
Gain—Inverting and Noninverting Preamp Gain = −1 and +2
(See Figure 50)