AD5446 Analog Devices, AD5446 Datasheet - Page 11
AD5446
Manufacturer Part Number
AD5446
Description
14-Bit High Bandwidth Multiplying DAC with Serial Interface
Manufacturer
Analog Devices
Datasheet
1.AD5446.pdf
(28 pages)
Specifications of AD5446
Resolution (bits)
14bit
Dac Update Rate
2.7MSPS
Dac Settling Time
80ns
Max Pos Supply (v)
+5.5V
Single-supply
Yes
Dac Type
Current Out
Dac Input Format
Ser,SPI
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AD5446YRMZ
Manufacturer:
ADI
Quantity:
352
Part Number:
AD5446YRMZ
Manufacturer:
ADI/亚德诺
Quantity:
20 000
–0.02
–0.04
–0.06
–1.66
–1.68
–1.70
–1.72
–1.74
–1.76
–1.78
–1.80
0.08
0.06
0.04
0.02
–3
–6
–9
Figure 24. Reference Multiplying Bandwidth vs. Frequency
3
0
0
10k
50
50
T
V
A
DD
= 25°C
V
V
V
V
V
= 5V
Figure 26. Midscale Transition, V
REF
REF
REF
REF
REF
Figure 25. Midscale Transition, V
75
75
= ±2V, AD8038 C
= ±2V, AD8038 C
= ±15V, AD8038 C
= ±15V, AD8038 C
= ±15V, AD8038 C
and Compensation Capacitor
100k
100
100
V
0x800 TO 0x7FF
NRG = 0.694nV-s
V
0x800 TO 0x7FF
NRG = 0.694nV-s
V
0x800 TO 0x7FF
NRG = 0.694nV-s
DD
DD
DD
V
0x800 TO 0x7FF
NRG = 0.694nV-s
= 5V
V
0x7FF TO 0x800
NRG = 2.154nV-s
= 5V
V
0x7FF TO 0x800
NRG = 2.154nV-s
DD
125
125
= 5V
FREQUENCY (Hz)
DD
DD
= 5V
= 5V
V
0x7FF TO 0x800
NRG = 1.794nV-s
COMP
COMP
= 5V
V
0x7FF TO 0x800
NRG = 1.794nV-s
TIME (ns)
TIME (ns)
DD
COMP
COMP
COMP
DD
150
1M
150
= 3V
= 3V
= 1pF
= 1.5pF
= 1pF
= 1.5pF
= 1.8pF
175
175
REF
REF
= 3.5 V
10M
200
= 0 V
200
T
V
AD8038 AMP
C
T
V
AD8038 AMP
C
A
REF
A
COMP
REF
COMP
= 25°C
= 25°C
= 0V
= 3.5V
= 1.8pF
225
= 1.8pF
225
100M
250
250
Rev. C | Page 11 of 28
–100
–10
–20
–30
–40
–50
–60
–70
–80
–90
–60
–65
–70
–75
–80
–85
–90
100
10
80
60
40
20
0
0
100
Figure 27. Power Supply Rejection Ratio vs. Frequency
1
0
T
V
AD8038 AMPLIFIER
T
V
V
T
V
AD8038 AMP
A
DD
A
A
REF
DD
REF
MCLK = 1MHz
Figure 29. Wideband SFDR vs. f
= 25°C
= 25°C
= 25°C
= 3V
= 5V
= 3.5V
= ±3.5V
10
Figure 28. THD + Noise vs. Frequency
10
MCLK = 500kHz
100
1k
FREQUENCY (Hz)
FREQUENCY (Hz)
20
FULL SCALE
1k
f
OUT
(kHz)
10k
30
AD5444/AD5446
OUT
ZERO SCALE
10k
Frequency
100k
MCLK = 200kHz
40
1M
100k
10M
5
0