AD5643R Analog Devices, AD5643R Datasheet - Page 15

• 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

1
1
2
0.30
0.25
0.20
0.15
0.10
0.05
CH1 2.0V
0
–40
T
A
= 25°C
V
Figure 34. Supply Current vs. Temperature
V
DD
–20
OUT
Figure 35. Full-Scale Settling Time, 5 V
V
OUT
CH2 500mV
Figure 36. Power-On Reset to 0 V
= 909mV/DIV
0
TIME BASE = 4µs/DIV
TEMPERATURE (°C)
20
V
V
V
T
FULL-SCALE CODE CHANGE
0x0000 TO 0xFFFF
OUTPUT LOADED WITH 2kΩ
AND 200pF TO GND
DD
DD
A
DD
M100µs 125MS/s
A CH1
= 25°C
= V
= V
40
= V
REFIN
REFIN
REF
V
T
= 5V
A
DD
= 5V
= 3V
60
1.28V
= 25°C
= V
REF
MAX(C2)*
420.0mV
80
= 5V
8.0ns/pt
100
Rev. D | Page 15 of 32
1
3
2
2.538
2.537
2.536
2.535
2.534
2.533
2.532
2.531
2.530
2.529
2.528
2.527
2.526
2.525
2.524
2.523
2.522
2.521
2.498
2.497
2.496
2.495
2.494
2.493
2.492
2.491
CH1 5.0V
CH3 5.0V
Figure 38. Digital-to-Analog Glitch Impulse (Negative)
0
0
Figure 39. Analog Crosstalk, External Reference
Figure 37. Exiting Power-Down to Midscale
50
50
CH2
AD5623R/AD5643R/AD5663R
100
100
SLCK
SYNC
500mV
150
150
SAMPLE NUMBER
SAMPLE NUMBER
200
200
M400ns
V
250
V
T
5ns/SAMPLE NUMBER
ANALOG CROSSTALK = 0.424nV
250
OUT
DD
A
V
T
5ns/SAMPLE NUMBER
GLITCH IMPULSE = 9.494nV
1LSB CHANGE AROUND
MIDSCALE (0x8000 TO 0x7FFF)
A
DD
= 25°C
= V
= 25°C
= V
300
300
REF
REF
= 5V
350
350
= 5V
A CH1
V
400
400
DD
= 5V
450
450
1.4V
512
512