参数资料
型号: AD5446YRMZ-RL7
厂商: Analog Devices Inc
文件页数: 4/29页
文件大小: 0K
描述: IC DAC 14BIT SRL 10MSOP
设计资源: Versatile High Precision Programmable Current Sources Using DACs, Op Amps, and MOSFET Transistors (CN0151)
标准包装: 1,000
位数: 14
数据接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
转换器数目: 1
电压电源: 单电源
功率耗散(最大): 50.5µW
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 10-TFSOP,10-MSOP(0.118",3.00mm 宽)
供应商设备封装: 10-MSOP
包装: 带卷 (TR)
输出数目和类型: 2 电流,单极;2 电流,双极
采样率(每秒): 2.7M
Data Sheet
AD5444/AD5446
Rev. E | Page 11 of 28
04588-
057
10k
100k
1M
10M
100M
FREQUENCY (Hz)
3
–9
0
GA
IN
(d
B)
TA = 25°C
VDD = 5V
–6
–3
VREF = ±2V, AD8038 CCOMP = 1pF
VREF = ±2V, AD8038 CCOMP = 1.5pF
VREF = ±15V, AD8038 CCOMP = 1pF
VREF = ±15V, AD8038 CCOMP = 1.5pF
VREF = ±15V, AD8038 CCOMP = 1.8pF
Figure 24. Reference Multiplying Bandwidth vs. Frequency
and Compensation Capacitor
04588-
058
50
200
225
250
TIME (ns)
0.08
–0.06
O
UT
P
UT
VO
LT
AG
E
(V)
–0.02
175
100
125
150
75
0.06
0.04
0.02
0
–0.04
TA = 25°C
VREF = 0V
AD8038 AMP
CCOMP = 1.8pF
VDD = 5V
0x7FF TO 0x800
NRG = 2.154nV-s
VDD = 3V
0x7FF TO 0x800
NRG = 1.794nV-s
VDD = 5V
0x800 TO 0x7FF
NRG = 0.694nV-s
VDD = 5V
0x800 TO 0x7FF
NRG = 0.694nV-s
Figure 25. Midscale Transition, VREF = 0 V
50
200
225
250
TIME (ns)
–1.66
–1.80
O
UT
P
UT
VO
LT
AG
E
(V)
–1.76
175
100
125
150
75
–1.68
–1.70
–1.72
–1.74
–1.78
TA = 25°C
VREF = 3.5V
AD8038 AMP
CCOMP = 1.8pF
VDD = 5V
0x7FF TO 0x800
NRG = 2.154nV-s
VDD = 3V
0x7FF TO 0x800
NRG = 1.794nV-s
VDD = 5V
0x800 TO 0x7FF
NRG = 0.694nV-s
VDD = 5V
0x800 TO 0x7FF
NRG = 0.694nV-s
04588-
059
Figure 26. Midscale Transition, VREF = 3.5 V
04588-
060
1
10
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
10
–100
–90
–70
–50
–30
–10
PSR
R
(d
B)
TA = 25°C
VDD = 3V
AD8038 AMPLIFIER
–80
–60
–40
–20
0
FULL SCALE
ZERO SCALE
Figure 27. Power Supply Rejection Ratio vs. Frequency
04588-
061
T
HD
+
N
(d
B)
TA = 25°C
VDD = 5V
VREF = ±3.5V
100
1k
10k
100k
FREQUENCY (Hz)
–60
–90
–85
–75
–65
–80
–70
Figure 28. THD + Noise vs. Frequency
04588-
062
0
50
fOUT (kHz)
100
0
S
F
DR
(d
B)
40
20
30
40
10
80
60
20
TA = 25°C
VREF = 3.5V
AD8038 AMP
MCLK = 500kHz
MCLK = 1MHz
MCLK = 200kHz
Figure 29. Wideband SFDR vs. fOUT Frequency
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