AD5737 Analog Devices, AD5737 Datasheet - Page 18

• Manufacturer Part Number: AD5737
• Description: Quad Channel, 12-Bit, Serial Input, 4-20mA Output DAC with Dynamic Power Control and HART Connectivity
• Manufacturer: Analog Devices

Specifications of AD5737

• Resolution (bits): 12bit
• Dac Settling Time: 15µs
• Max Pos Supply (v): +33V
• Single-supply: No
• Dac Type: Current Out
• Dac Input Format: Ser,SPI

AD5737
REFERENCE
–100
–150
150
100
–50
Figure 38. REFOUT Output Noise (0.1 Hz to 10 Hz Bandwidth)
16
14
12
10
–2
–1
–2
–3
50
8
6
4
2
0
4
3
2
1
0
0
0
0
0
Figure 39. REFOUT Output Noise (100 kHz Bandwidth)
AV
T
A
Figure 37. REFOUT Voltage Turn-On Transient
DD
= 25°C
AV
T
AV
REFOUT
T
A
= 15V
A
0.2
DD
= 25°C
DD
= 25°C
2
= 15V
5
0.4
4
TIME (ms)
TIME (ms)
TIME (s)
0.6
10
6
0.8
15
8
1.0
1.2
1
20
0
Rev. A | Page 18 of 44
average output voltage shift is −4 mV. Measurement of these parts after seven
This second shift is due to the relaxation of stress incurred during soldering.)
days shows that the outputs typically shift back 2 mV toward their initial values.
Figure 40. REFOUT Voltage vs. Temperature (When the AD5737 is soldered
onto a PCB, the reference shifts due to thermal shock on the package. The
5.00000
4.99995
4.99990
4.99985
4.99980
4.99975
4.99970
4.99965
4.99960
5.002
5.001
5.000
4.999
4.998
4.997
4.996
4.995
5.0050
5.0045
5.0040
5.0035
5.0030
5.0025
5.0020
5.0015
5.0010
5.0005
5.0000
–40
0
10
T
Figure 41. REFOUT Voltage vs. Load Current
A
–20
= 25°C
Figure 42. REFOUT Voltage vs. AV
2
15
0
LOAD CURRENT (mA)
30 DEVICES SHOWN
AV
TEMPERATURE (°C)
DD
4
20
= 15V
20
AV
DD
(V)
40
6
25
60
DD
Data Sheet
AV
T
A
8
DD
= 25°C
80
= 15V
30
100
10