參數(shù)資料
型號(hào): AD5260BRUZ50
廠商: Analog Devices Inc
文件頁(yè)數(shù): 15/24頁(yè)
文件大?。?/td> 0K
描述: IC DGTL POT 50K SPI 14-TSSOP
標(biāo)準(zhǔn)包裝: 96
接片: 256
電阻(歐姆): 50k
電路數(shù): 1
溫度系數(shù): 標(biāo)準(zhǔn)值 35 ppm/°C
存儲(chǔ)器類(lèi)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(lèi)型: 表面貼裝
封裝/外殼: 14-TSSOP(0.173",4.40mm 寬)
供應(yīng)商設(shè)備封裝: 14-TSSOP
包裝: 管件
產(chǎn)品目錄頁(yè)面: 787 (CN2011-ZH PDF)
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.
Figure 68 and Figure 69 show that the digital potentiometers
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
相關(guān)PDF資料
PDF描述
AD5260BRUZ200 IC POT DGTL 200K 256POS 14-TSSOP
MS3450W16-9P CONN RCPT 4POS WALL MNT W/PINS
MS27472E18F28PA CONN RCPT 28POS WALL MT W/PINS
AD5280BRUZ20 IC DGTL POT 15V 20K 14-TSSOP
MS3106A28-5S CONN PLUG 5POS STRAIGHT W/SCKT
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD5260BRUZ50-REEL7 功能描述:IC DGTL POT SNGL 50K 14-TSSOP RoHS:是 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:- 標(biāo)準(zhǔn)包裝:3,000 系列:DPP 接片:32 電阻(歐姆):10k 電路數(shù):1 溫度系數(shù):標(biāo)準(zhǔn)值 300 ppm/°C 存儲(chǔ)器類(lèi)型:非易失 接口:3 線串行(芯片選擇,遞增,增/減) 電源電壓:2.5 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:8-WFDFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:8-TDFN(2x3) 包裝:帶卷 (TR)
AD5262 制造商:AD 制造商全稱(chēng):Analog Devices 功能描述:256-Position and 33-Position Digital Potentiometers
AD5262BRU20 功能描述:IC POT DUAL 20K 256POS 16TSSOP RoHS:否 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:- 標(biāo)準(zhǔn)包裝:3,000 系列:DPP 接片:32 電阻(歐姆):10k 電路數(shù):1 溫度系數(shù):標(biāo)準(zhǔn)值 300 ppm/°C 存儲(chǔ)器類(lèi)型:非易失 接口:3 線串行(芯片選擇,遞增,增/減) 電源電壓:2.5 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:8-WFDFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:8-TDFN(2x3) 包裝:帶卷 (TR)
AD5262BRU200 功能描述:IC POT DUAL 200K 256POS 16TSSOP RoHS:否 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:- 標(biāo)準(zhǔn)包裝:3,000 系列:DPP 接片:32 電阻(歐姆):10k 電路數(shù):1 溫度系數(shù):標(biāo)準(zhǔn)值 300 ppm/°C 存儲(chǔ)器類(lèi)型:非易失 接口:3 線串行(芯片選擇,遞增,增/減) 電源電壓:2.5 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:8-WFDFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:8-TDFN(2x3) 包裝:帶卷 (TR)
AD5262BRU200-REEL7 功能描述:IC POT DUAL 200K 256POS 16TSSOP RoHS:否 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:- 標(biāo)準(zhǔn)包裝:3,000 系列:DPP 接片:32 電阻(歐姆):10k 電路數(shù):1 溫度系數(shù):標(biāo)準(zhǔn)值 300 ppm/°C 存儲(chǔ)器類(lèi)型:非易失 接口:3 線串行(芯片選擇,遞增,增/減) 電源電壓:2.5 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:8-WFDFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:8-TDFN(2x3) 包裝:帶卷 (TR)