AD5644R Analog Devices, AD5644R Datasheet - Page 14

• Manufacturer Part Number: AD5644R
• Manufacturer: Analog Devices

Specifications of AD5644R

• 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

AD5624R/AD5644R/AD5664R
Figure 30. I
–0.5
–1.0
–1.5
–2.0
–2.5
1.0
0.5
0
6
5
4
3
2
1
0
6
5
4
3
2
1
0
2.7
Figure 29. I
Figure 28. Zero-Scale Error and Offset Error vs. Supply
T
V
T
A
V
T
0.92
A
DD
DD
A
= 25°C
0.41
= 25°C
= 25°C
DD
= 5.5V
= 5.5V
Histogram with Internal Reference, V
3.2
DD
Histogram with External Reference, 5.5 V
0.42
0.94
3.7
V
I
I
DD
DD
0.43
DD
(mA)
(mA)
4.2
(V)
0.96
ZERO-SCALE ERROR
0.44
OFFSET ERROR
4.7
0.98
REFOUT
0.45
5.2
= 2.5 V
Rev. B | Page 14 of 28
Figure 32. I
–0.1
–0.2
–0.3
–0.4
–0.5
0.5
0.4
0.3
0.2
0.1
0
–10
8
7
6
5
4
3
2
1
0
8
7
6
5
4
3
2
1
0
Figure 31. I
Figure 33. Headroom at Rails vs. Source and Sink
V
T
V
V
V
T
0.39
A
DD
DD
A
DD
REFOUT
DAC LOADED WITH
FULL-SCALE
SOURCING CURRENT
–8
= 25°C
DD
= 25°C
= 3.6V
= 3V
= 3.6V
Histogram with Internal Reference, V
0.90
DD
–6
= 1.25V
Histogram with External Reference, 3.6 V
V
V
0.40
DD
REFOUT
–4
= 5V
0.92
= 2.5V
CURRENT (mA)
–2
0.41
I
I
DD
DD
0
(mA)
(mA)
DAC LOADED WITH
ZERO-SCALE
SINKING CURRENT
0.94
2
0.42
4
REFOUT
0.96
6
0.43
= 1.25 V
8
10