AD5737 Analog Devices, AD5737 Datasheet - Page 16

• 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
Figure 28. Output Current Settling Time with External PMOS Transistor
Figure 26. Output Current Settling Time with DC-to-DC Converter
Figure 27. Output Current Settling Time with DC-to-DC Converter
30
25
20
15
10
30
25
20
15
10
–0.25
–0.25
25
20
15
10
5
0
5
0
5
0
–5
0
0
over Temperature (See Figure 55)
0.25
0.25
0
over AV
0.50
0.50
5
CC
TIME (ms)
TIME (ms)
0mA TO 24mA RANGE
1kΩ LOAD
f
INDUCTOR = 10µH (XAL4040-103)
AV
0mA TO 24mA RANGE
1kΩ LOAD
f
INDUCTOR = 10µH (XAL4040-103)
T
TIME (µs)
0.75
0.75
(See Figure 55)
SW
SW
A
CC
T
EXTERNAL PMOS (NTLJS4149)
4mA TO 20mA RANGE
R
V
= 25°C
AV
AV
AV
T
T
T
A
= 410kHz
= 410kHz
LOAD
BOOST_x
A
A
A
= 5V
= 25°C
I
I
CC
CC
CC
OUT
OUT
= –40°C
= +25°C
= +105°C
1.00
1.00
= 300Ω
= 4.5V
= 5.0V
= 5.5V
10
(4mA TO 20mA STEP)
(20mA TO 4mA STEP)
= 24V
1.25
1.25
1.50
1.50
15
1.75
1.75
20
Rev. A | Page 16 of 44
Figure 30. DC-to-DC Converter Headroom vs. Output Current (See Figure 55)
–100
–120
–10
–20
–40
–60
–80
10
–2
–4
–6
–8
8
7
6
5
4
3
2
1
0
8
6
4
2
0
0
0
10
0
Figure 29. Output Current, AC-Coupled vs. Time
AV
V
T
with DC-to-DC Converter (See Figure 55)
2
BOOST_x
A
100
DD
= 25°C
Figure 31. I
5
= 15V
AV
f
INDUCTOR = 10µH (XAL4040-103)
SW
CC
4
20mA OUTPUT
10mA OUTPUT
= 15V
= 410kHz
OUTPUT CURRENT (mA)
= 5V
1k
FREQUENCY (Hz)
OUT_x
6
10
0mA TO 24mA RANGE
1kΩ LOAD
f
INDUCTOR = 10µH (XAL4040-103)
T
TIME (µs)
SW
A
PSRR vs. Frequency
= 25°C
10k
= 410kHz
8
100k
15
10
0mA TO 24mA RANGE
EXTERNA L R
Data Sheet
12
1M
1kΩ LOAD
20
T
A
= 25°C
14
SET
10M