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PDF AD5425 Datasheet ( Hoja de datos )

Número de pieza AD5425
Descripción High Bandwidth Multiplying DAC
Fabricantes Analog Devices 
Logotipo Analog Devices Logotipo
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Total 25 Páginas
		
AD5425 datasheet

1 Page

AD5425 pdf
AD5425
Parameter
Min Typ Max Unit
Digital THD
50 kHz fOUT
20 kHz fOUT
Output Noise Spectral Density
70 dB
73 dB
25 nV√Hz
SFDR Performance (Wide Band)
50 kHz fOUT
20 kHz fOUT
SFDR Performance (Narrow Band)
67 dB
68 dB
50 kHz fOUT
20 kHz fOUT
Intermodulation Distortion
73 dB
75 dB
79 dB
POWER REQUIREMENTS
Power Supply Range
IDD
Power Supply Sensitivity
2.5
0.4
1 Guaranteed by design and characterization, not subject to production test.
5.5
0.6
5
0.001
V
µA
µA
%/%
Data Sheet
Conditions/Comments
Clock = 1 MHz, VREF = 3.5 V, CCOMP = 1.8 pF
@ 1 kHz
Clock = 2 MHz , VREF = 3.5 V
Clock = 2 MHz, VREF = 3.5 V
f1 = 20 kHz, f2 = 25 kHz, clock = 2 MHz,
VREF = 3.5 V
TA = 25°C, logic inputs = 0 V or VDD
Logic inputs = 0 V or VDD, T = −40°C to +125°C
ΔVDD = ±5%
Rev. C | Page 4 of 24
Free Datasheet http://www.datasheet4u.com/

5 Page

AD5425 arduino
AD5425
0.7
TA = 25°C
0.6
0.5
VDD = 5V
0.4
0.3
0.2
0.1
0
0
VDD = 2.5V
VDD = 3V
1234
INPUT VOLTAGE (V)
Figure 16. Supply Current vs. Input Voltage
5
1.8
TA = 25°C
1.6
1.4
VIH
1.2
1.0
VIL
0.8
0.6
0.4
0.2
0
2.5 3.0 3.5 4.0 4.5 5.0 5.5
VOLTAGE (V)
Figure 17. Threshold Voltages vs. Supply Voltage
0.2
0
–0.2
–0.4
–0.6
TA = 25°C
VDD = 5V
VREF = ±3.5V
CCOMP = 1.8pF
AD8083 AMPLIFIER
–0.8
1 10 100
1k
10k 100k 1M 10M 100M
FREQUENCY (Hz)
Figure 18. Reference Multiplying Bandwidth—All 1s Loaded
Data Sheet
0.060
0.050
0.040
0.030
0.020
0.010
0
–0.010
–0.020
0
VDD 5V, 0V REF
NRG = 2.049nVs
07xFF TO 0x800
TA = 25°C
VREF = 0V
AD8038 AMPLIFIER
CCOMP = 1.8pF
VDD 3V, 0V REF
NRG = 0.088nVs
0x800 TO 0x7FF
VDD 3V, 0V REF
NRG = 1.877nVs
0x7FF TO 0x800
VDD 5V, 0V REF
NRG = 0.119nVs,
0x800 TO 0x7FF
50 100 150 200 250
TIME (ns)
Figure 19. Midscale Transition, VREF = 3.5 V
300
6
0
TA = 25°C
LOADING
–6 ZS TO FS
–12
–18
–24
–30
–36
–42
–48
–54
–60
–66
–72
–78
–84
–90
–96
–102
1
10
ALL ON
DB11
DB10
DB9
DB8
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
ALL OFF
TA = 25°C
VDD = 5V
VREF = ±3.5V
INPUT
CCOMP = 1.8pF
AD8083 AMPLIFIER
100 1k 10k 100k 1M 10M 100M
FREQUENCY (Hz)
Figure 20. Reference Multiplying Bandwidth vs. Frequency and Code
3
VREF = ±0.15V, AD8038 CC 1pF
VREF = ±2V, AD8038 CC 1pF
0
VREF = ±3.51V, AD8038 CC 1.8pF
VREF = ±2V, AD8038 CC 1.47pF
–3
VREF = ±0.15V, AD8038 CC 1.47pF
–6
TA = 25°C
VDD = 5V
–9 AD8038 AMPLIFIER
10k 100k
1M
FREQUENCY (Hz)
10M
100M
Figure 21. Reference Multiplying Bandwidth vs. Frequency and
Compensation Capacitor
Rev. C | Page 10 of 24
Free Datasheet http://www.datasheet4u.com/

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