Datasheet

AD795
Rev. C | Page 7 of 20
1.00
0.95
0.90
0.85
0.80
0.75
0.70
0.65
0.60
–15 –10 –5 0 5 10 15
COMMON-MODE VOLTAGE (V)
INPUT BIAS CURRENT (pA)
00845-010
Figure 10. Input Bias Current vs. Common-Mode Voltage
10
–4
10
–5
10
–6
10
–7
10
–8
10
–9
10
–10
10
–11
10
–12
10
–13
10
–14
–6 –5 –4 –3 –2 –1 0 1 2 3 4 5 6
DIFFERENTIAL INPUT VOLTAGE (±V)
INPUT BIAS CURRENT (A)
00845-011
+I
IN
–I
IN
Figure 11. Input Bias Current vs. Differential Input Voltage
15.0 100
10
1
0.1
0.01
12.5
10.0
7.5
5.0
–60 –40 –20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
VOLTAGE NOISE (nV/ Hz)
CURRENT NOISE (fA/
Hz)
00845-012
f = 1kHz
VOLTAGE NOISE
CURRENT NOISE
Figure 12. Voltage and Current Noise Spectral Density vs. Temperature
1k
100
10
1
1k 10
k
100k 1M 10M 100M 1G
SOURCE RESISTANCE (Ω)
VOLTAGE NOISE (µV p-p)
00845-013
NOISE BANDWIDTH: 0.1Hz TO 10Hz
Figure 13. Input Voltage Noise vs. Source Resistance
50
40
30
20
10
0
0123
INPUT VOLTAGE NOISE (µV p-p)
PERCENTAGE OF UNITS
00845-014
SAMPLE SIZE = 344
f = 0.1Hz TO 10Hz
Figure 14. Typical Distribution of Input Voltage Noise
1k
100
10
1
1 10 100 1k 10k 100k 1M 10M
FREQUENCY (Hz)
VOLTAGE NOISE (REFERRED TO INPUT) (nV/ Hz)
00845-015
Figure 15. Input Voltage Noise Spectral Density