参数资料
型号: AD5254BRUZ50-RL7
厂商: Analog Devices Inc
文件页数: 4/32页
文件大小: 0K
描述: IC POT DGTL QUAD 50K 20TSSOP
标准包装: 1,000
接片: 256
电阻(欧姆): 50k
电路数: 4
温度系数: 标准值 650 ppm/°C
存储器类型: 非易失
接口: I²C(设备位址)
电源电压: 2.7 V ~ 5.5 V,±2.25 V ~ 2.75 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 20-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 20-TSSOP
包装: 带卷 (TR)
AD5253/AD5254
Data Sheet
Rev. C | Page 12 of 32
–60
–48
–24
–12
0
–36
–54
–30
–18
–6
–42
GAIN
(
d
B)
1k
10k
10
100
100k
1M
10M
FREQUENCY (Hz)
03824-0-027
0xFF
0x80
0x40
0x20
0x10
0x08
0x04
0x02
0x01
0x00
Figure 15. Gain vs. Frequency vs. Code, RAB = 50 kΩ, TA = 25°C
–60
–48
–24
–12
0
–36
–54
–30
–18
–6
–42
GAIN
(
d
B)
1k
10k
10
100
100k
1M
10M
FREQUENCY (Hz)
03824-0-028
0xFF
0x80
0x40
0x20
0x10
0x08
0x04
0x02
0x01
0x00
Figure 16. Gain vs. Frequency vs. Code, RAB = 100 kΩ, TA = 25°C
R
AB
(
)
CODE (Decimal)
03824-0-029
–100
–80
–60
–40
–20
0
20
40
60
80
100
0
32
64
96
128
160
192
224
256
100k
10k
50k
VDD = 5.5V
1k
Figure 17. ΔRAB vs. Code, TA = 25°C
CLOCK FREQUENCY (Hz)
03824-0-030
0
0.6
0.4
0.2
0.8
1.0
1.2
1
100
10
1k
10k
100k
1M
10M
VDD = 2.7V
TA = 25°C
VDD = 5.5V
I DD
(mA)
Figure 18. Supply Current vs. Digital Input Clock Frequency
03824-0-031
DIGITAL FEEDTHROUGH
CLK
VDD = 5V
VW
MIDSCALE TRANSITION
7FH
80H
400ns/DIV
Figure 19. Clock Feedthrough and Midscale Transition Glitch
03824-0-046
VWB0
(0xFF
STORED
IN EEMEM)
VWB3
(0xFF
STORED
IN EEMEM)
VDD = VA0 = VA3 = 3.3V
GND = VB0 = VB3
MIDSCALE
PRESET
RESTORE RDAC0
SETTING TO 0xFF
RESTORE RDAC3
SETTING TO 0xFF
VDD
(NO DE-
COUPLING
CAPS)
MIDSCALE
PRESET
Figure 20. tEEMEM_RESTORE of RDAC0 and RDAC3
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