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參數(shù)資料
| 型號： | AD5262BRUZ20-RL7 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 15/24頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DGTL POT 256POS 20K 16TSSOP |
| 標準包裝： | 1 |
| 接片： | 256 |
| 電阻（歐姆）： | 20k |
| 電路數(shù)： | 2 |
| 溫度系數(shù)： | 標準值 35 ppm/°C |
| 存儲器類型： | 易失 |
| 接口： | 4 線 SPI（芯片選擇） |
| 電源電壓： | 4.5 V ~ 16.5 V，±4.5 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-TSSOP（0.173"，4.40mm 寬） |
| 供應商設(shè)備封裝： | 16-TSSOP |
| 包裝： | 標準包裝 |
| 其它名稱： | AD5262BRUZ20-RL7DKR |
AD5260/AD5262
Rev. A | Page 22 of 24
d
ts can be programmed to the same setting
simultaneously.
ate state occurs that may not be acceptable for certain applications.
As a result, different devices can also be used in daisy-chaine
mode so that par
In voltage divider mode, a much lower resistance can be achieved
by paralleling a discrete resistor as shown in Figure 69. The
equivalent resistance becomes
W
eq
WB
R
R2
R1
D
R
+
=
)
//
(
256
_
(16)
+5V
OP1177
VO
–5V
R2A
2.1k
D1
D2
R2B
10k
VN
R1
1k
A
B
W
R1 = R1' = R2B = AD5262
D1 = D2 = 1N4148
AD5262
C'
2.2nF
R'
10k
AB
W
VP
C
2.2nF
FREQUENCY
ADJUSTMENT
R
10k
A
B
W
U1
AMPLITUDE
W
eq
WA
R
R2
R1
D
R
+
=
)
//
(
256
1
_
(17)
W
A
B
R2
R1
R2 << R1
026
95-
06
9
Figure 69. Lowering the Nominal Resistance
ADJUSTMENT
026
95-
0
67
cillator with Amplitude Control
le
o program
both channels coherently with the same settings.
change steps linearly. However, log taper adjustment is usually
preferred in applications like audio control. Figure 70 shows
another method of resistance scaling. In this circuit, the smaller
R2 is with respect to RAB, the more the pseudo-log taper
characteristic behaves.
Figure 67. Programmable Os
RESISTANCE SCALING
The AD5260/AD5262 offer 20 kΩ, 50 kΩ, and 200 kΩ nominal
resistance. For users who need lower resistance and still main-
tain the numbers of step adjustment, they can place multip
devices in parallel. For example, Figure 68 shows a simple
scheme of paralleling both channels of the AD5262. To adjust
half of the resistance linearly per step, users need t
VO
A
B
R1
R2
Vi
W
02
695
-0
70
W1
A1
B1
W2
A2
B2
V
LD
DD
0
26
95-
Figure 70. Resistor Scaling with Log Adjustment Characteristics
068
68. Reduce Resistance by Half with Linear Adjustment Characteristics
Figure
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| AD5262BRUZ50 | 功能描述:IC POT DUAL 50K 256POS 16TSSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:1 系列:- 接片:256 電阻（歐姆）:100k 電路數(shù):1 溫度系數(shù):標準值 35 ppm/°C 存儲器類型:非易失 接口:3 線串口 電源電壓:2.7 V ~ 5.25 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-WDFN 裸露焊盤 供應商設(shè)備封裝:8-TDFN-EP（3x3） 包裝:剪切帶 (CT) 產(chǎn)品目錄頁面:1399 (CN2011-ZH PDF) 其它名稱:MAX5423ETA+TCT |
| AD5262BRUZ50 | 制造商:Analog Devices 功能描述:IC DIGITAL POT 50KOHM 256 DUAL 16-TSSO |
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| AD5262-EVAL | 制造商:Analog Devices 功能描述:EVAL KIT FOR 1-/2CH 15 V DGTL POTENTIOMETERS - Bulk |
| AD5263 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Preliminary Technical Data |
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