Datasheet

AD5629R/AD5669R Data Sheet
Rev. B | Page 18 of 32
0
–140
–120
–100
–80
–60
–40
–20
0 10,0008000600040002000
THD (dB)
FREQUENCY (Hz)
V
DD
= 5.5V
EXT REF = 5V
T
A
= 25°C
V
REF
= 2V ± 0.1V p-p
FREQUENCY = 10kHz
08819-148
Figure 42. Total Harmonic Distortion
9
0
1
2
3
4
6
7
8
5
010987654321
SETTLING TIME (µs)
CAPACITIVE LOAD (nF)
V
DD
= EXTERNAL REFERENCE = 5V
V
DD
= EXTERNAL REFERENCE = 3V
T
A
= 25°C
08819-149
Figure 43. Settling Time vs. Capacitive Load
5.5
–0.5
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
–10 1050–5
VOLTAGE (V)
TIME (µs)
V
OUT
A
CLR PULSE
EXT REF = 5V
08819-150
Figure 44. Hardware
CLR
10
–80
–70
–60
–50
–40
–30
–20
–10
0
10 100M10M1M100k1k01k100
V
OUT
(dBm)
FREQUENCY (Hz)
CH A
CH B
CH C
CH D
CH E
CH F
CH G
CH H
–3dB
V
DD
= 5.5V
EXT REF = 5V
T
A
= 25°C
V
REF
= 2V ± 0.2V p-p
08819-151
Figure 45. Multiplying Bandwidth
1.2510
1.2490
1.2492
1.2494
1.2496
1.2498
1.2500
1.2502
1.2504
1.2506
1.2508
–40 25 105
REFERENCE (ppm/°C)
TEMPERATURE (°C)
V
DD
= 5.5V
08819-152
Figure 46. 1.25 V Reference Temperature Coefficient vs. Temperature
2.503
2.495
2.496
2.497
2.498
2.499
2.500
2.501
2.502
105 25 –40
REFERENCE (ppm/°C)
TEMPERATURE (°C)
08819-153
Figure 47. 2.5 V Reference Temperature Coefficient vs. Temperature