Datasheet

Data Sheet AD5686R/AD5685R/AD5684R
Rev. B | Page 17 of 32
Figure 44. 0.1 Hz to 10 Hz Output Noise Plot, 2.5 V Internal Reference
Figure 45. Noise Spectral Density
Figure 46. Total Harmonic Distortion @ 1 kHz
Figure 47. Settling Time vs. Capacitive Load
Figure 48. Multiplying Bandwidth, External Reference = 2.5 V, ±0.1 V p-p,
10 kHz to 10 MHz
CH1 10µV M1.0s A CH1 802mV
1
T
10485-147
V
DD
= 5V
T
A
= 25°C
INTERNAL REFERENCE = 2.5V
0
200
400
600
800
1000
1200
1400
1600
10 1M
100k1k 10k100
NSD (nV/ Hz)
FREQUENCY (Hz)
FULL-SCALE
MIDSCALE
ZERO-SCALE
10485-148
V
DD
= 5V
T
A
= 25°C
INTERNAL REFERENCE = 2.5V
–180
–160
–140
–120
–100
–80
–60
–40
–20
0
20
0 20000160008000 1200040002000 1800010000 140006000
THD (dBV)
FREQUENCY (Hz)
10485-149
V
DD
= 5V
T
A
= 25°C
INTERNAL REFERENCE = 2.5V
3.0
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
4.0
1.590 1.6301.6201.600 1.610 1.6251.605 1.6151.595
V
OUT
(V)
TIME (ms)
0nF
0.1nF
10nF
0.22nF
4.7nF
10485-150
V
DD
= 5V
T
A
= 25°C
INTERNAL REFERENCE = 2.5V
–60
–50
–40
–30
–20
–10
0
10k 10M1M100k
BANDWIDTH (dB)
FREQUENCY (Hz)
10485-151
V
DD
= 5V
T
A
= 25°C
EXTERNAL REFERENCE = 2.5V, ±0.1V p-p