AD5380 Analog Devices, AD5380 Datasheet - Page 20

• Manufacturer Part Number: AD5380
• Description: 40-Channel 14-Bit 3 V/5 V Single-Supply Voltage-Output DAC
• Manufacturer: Analog Devices

Specifications of AD5380

• Resolution (bits): 14bit
• Dac Update Rate: 125kSPS
• Dac Settling Time: 8µs
• Max Pos Supply (v): +5.5V
• Single-supply: Yes
• Dac Type: Voltage Out
• Dac Input Format: Par,Ser,SPI

AD5380
–0.05
–0.10
–0.15
–0.20
0.20
0.15
0.10
0.05
Figure 21. AD5380-5 Output Amplifier Source and Sink Capability
600
500
400
300
200
100
–1
0
0
100
6
5
4
3
2
1
0
–40
0
FULL SCALE
Figure 22. Headroom at Rails vs. Source/Sink Current
REFOUT = 1.25V
–20
0.25
(VDD–VOUT) AT FULL-SCALE SOURCING CURRENT
Figure 23. REFOUT Noise Spectral Density
3/4 SCALE
1/4 SCALE
–10
0.50
ZERO SCALE
ERROR AT ZERO SINKING CURRENT
MIDSCALE
–5
1k
0.75
I
SOURCE
FREQUENCY (Hz)
CURRENT (mA)
–2
1.00
REFOUT = 2.5V
/I
SINK
0
(mA)
AVDD = 5V
T
REFOUT DECOUPLED
WITH 100nF CAPACITOR
1.25
AVDD = DVDD = 5V
2
A
= 25°C
10k
5
1.50
V
REF
T
A
AVDD = 5V
V
T
10
= 25°C
= 2.5V
A
REF
= 25°C
1.75
= 2.5V
20
100k
2.00
40
Rev. A | Page 20 of 40
2.456
2.455
2.454
2.453
2.452
2.451
2.450
2.449
Figure 24. AD5380-3 Output Amplifier Source and Sink Capability
–1
6
5
4
3
2
1
0
–40
0
AVDD = DVDD = 5V
T
DAC LOADED WITH MIDSCALE
EXTERNAL REFERENCE
Y AXIS = 5μV/DIV
X AXIS = 100ms/DIV
A
MIDSCALE
AVDD = DVDD = 3V
V
T
= 25°C
Figure 25. Adjacent Channel DAC-to-DAC Crosstalk
REF
A
50
–20
= 25°C
= 1.25V
100
ZERO SCALE
Figure 26. 0.1 Hz to 10 Hz Noise Plot
–10
150
3/4 SCALE
–5
200
SAMPLE NUMBER
CURRENT (mA)
–2
250
0
300
1/4 SCALE
AVDD = DVDD = 5V
V
T
14ns/SAMPLE NUMBER
2
350
REF
A
= 25°C
AV
FULL SCALE
= 2.5V
400
5
EXITS SOFT PD
DD
TO MIDSCALE
= DV
V
450
REF
10
T
A
DD
= 25°C
= 2.5V
500
= 5V
20
550
–40