AD5643R Analog Devices, AD5643R Datasheet - Page 16

• Manufacturer Part Number: AD5643R
• Manufacturer: Analog Devices

Specifications of AD5643R

• Resolution (bits): 14bit
• Dac Update Rate: 250kSPS
• Dac Settling Time: 3.5µs
• Max Pos Supply (v): +5.5V
• Single-supply: Yes
• Dac Type: Voltage Out
• Dac Input Format: Ser,SPI

AD5623R/AD5643R/AD5663R
Figure 41. 0.1 Hz to 10 Hz Output Noise Plot, External Reference
Figure 42. 0.1 Hz to 10 Hz Output Noise Plot, Internal Reference
1
2.496
2.494
2.492
2.490
2.488
2.486
2.484
2.482
2.480
2.478
2.476
2.474
2.472
2.470
2.468
2.466
2.464
2.462
2.460
2.458
2.456
1
V
T
DAC LOADED WITH MIDSCALE
Y AXIS = 2µV/DIV
X AXIS = 4s/DIV
0
V
V
T
DAC LOADED WITH MIDSCALE
DD
A
A
DD
REFOUT
= 25°C
Figure 40. Analog Crosstalk, Internal Reference
= 25°C
= V
= 5V
50
REF
= 2.5V
= 5V
100
150
SAMPLE NUMBER
200
5s/DIV
V
V
T
5ns/SAMPLE NUMBER
ANALOG CROSSTALK = 4.462nV
250
DD
REFOUT
A
= 25°C
= 5V
300
= 2.5V
350
400
450
512
Rev. D | Page 16 of 32
800
700
600
500
400
300
200
100
Figure 43. 0.1 Hz to 10 Hz Output Noise Plot, Internal Reference
–100
1
–20
–30
–40
–50
–60
–70
–80
–90
0
100
Figure 44. Noise Spectral Density, Internal Reference
V
V
T
DAC LOADED WITH MIDSCALE
V
V
T
MIDSCALE LOADED
DD
REFOUT
A
A
DD
REFOUT
V
T
DAC LOADED WITH FULL SCALE
V
= 25°C
DD
A
REF
= 25°C
= 3V
= 3V
= 25°C
= 5V
= 2V ± 0.3V p-p
Figure 45. Total Harmonic Distortion
= 1.25V
= 1.25V
2k
1k
V
V
DD
REFOUT
FREQUENCY (Hz)
FREQUENCY (Hz)
= 5V
4k
4s/DIV
= 2.5V
10k
6k
1M
8k
10M
10k