AD5757 Analog Devices, AD5757 Datasheet - Page 18

• Manufacturer Part Number: AD5757
• Description: Quad Channel, 16-Bit, Serial Input, 4-20mA Output DAC, Dynamic Power Control, HART Connectivity
• Manufacturer: Analog Devices

Specifications of AD5757

• Resolution (bits): 16bit
• Dac Update Rate: 60kSPS
• Dac Settling Time: 15µs
• Max Pos Supply (v): +33V
• Single-supply: No
• Dac Type: Current Out
• Dac Input Format: SPI

AD5757
Figure 31. DC-to-DC Converter Headroom vs. Output Current (See Figure 56)
Figure 30. Output Current vs. Time with DC-to-DC Converter (See Figure 56)
–10
10
–2
–4
–6
–8
8
7
6
5
4
3
2
1
0
8
6
4
2
0
0
0
2
5
AV
f
INDUCTOR = 10µH (XAL4040-103)
SW
CC
4
20mA OUTPUT
10mA OUTPUT
= 410kHz
= 5V
CURRENT (mA)
6
10
0mA TO 24mA RANGE
1kΩ LOAD
f
INDUCTOR = 10µH (XAL4040-103)
T
TIME (µs)
SW
A
= 25°C
= 410kHz
8
15
10
0mA TO 24mA RANGE
EXTERNAL R
12
1kΩ LOAD
20
T A = 25°C
14
SET
Rev. B | Page 18 of 44
–100
–120
–20
–40
–60
–80
0
10
AV
V
T
A
100
BOOST
DD
= 25°C
Figure 32. I
= 15V
= 15V
1k
FREQUENCY (Hz)
OUT_x
PSRR vs. Frequency
10k
100k
Data Sheet
1M
10M