參數(shù)資料
型號: MAX5478EUD
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: 數(shù)字電位計
英文描述: Dual, 256-Tap, Nonvolatile, I2C-Interface, Digital Potentiometers
中文描述: 50K DIGITAL POTENTIOMETER, 2-WIRE SERIAL CONTROL INTERFACE, 256 POSITIONS, PDSO14
封裝: 4.40 X 5 MM, MO-153AB-1, TSSOP-14
文件頁數(shù): 13/15頁
文件大?。?/td> 383K
代理商: MAX5478EUD
M
Dual, 256-Tap, Nonvolatile, I
2
C-Interface,
Digital Potentiometers
______________________________________________________________________________________
13
Offset Voltage and Gain Adjustment
Connect the high and low terminals of one potentiome-
ter of a MAX5477 between the NULL inputs of a
MAX410 and the wiper to the op amp’s positive supply
to nullify the offset voltage over the operating tempera-
ture range. Install the other potentiometer in the feed-
back path to adjust the gain of the MAX410 (Figure 12).
Adjustable Voltage Reference
Figure 13 shows the MAX5477/MAX5478/MAX5479
used as the feedback resistors in multiple adjustable
voltage reference applications. Independently adjust
the output voltages of the MAX6160 parts from 1.23V to
V
IN
- 0.2V by changing the wiper positions of the
MAX5477/MAX5478/MAX5479.
MAX6160
IN
5V
OUT
ADJ
GND
HA
LA
WA
VOUT1
IN
OUT
ADJ
GND
HB
LB
WB
V
OUT2
1/2 MAX5477
1/2 MAX5478
1/2 MAX5479
MAX6160
1/2 MAX5477
1/2 MAX5478
1/2 MAX5479
FOR THE MAX5477
V
OUT_
= 1.23V x10k
R
FOR THE MAX5478
V
OUT_
= 1.23V x50k
R
FOR THE MAX5479
V
OUT_
= 1.23V x100k
R
WHERE R = R
HL
x D / 256
AND D = DECIMAL VALUE OF WIPER CODE
R
R
Figure 13. Adjustable Voltage Reference
3
2
5V
7
4
1
6
8
MAX410
HA
LA
WA
R2
R1
HB
LB
WB
1/2 MAX5477
1/2 MAX5477
R
= R
x D / 256
WHERE R
= END-TO-END RESISTANCE
AND = D DECIMAL VALUE OF WIPER CODE
Figure 12. Offset Voltage Adjustment Circuit
MAX5477
MAX5478
MAX5479
V
IN
R
2
HB
WB
LB
R
1
V
OUT
R
3
HA
WA
LA
C
MAX410
V+
V-
R
, R
= R
HL
x D / 256
WHERE R
= END-TO-END RESISTANCE
AND D = DECIMAL VALUE OF WIPER CODE
Figure 11. Programmable Filter
16
1
2
3
4
12
11
10
9
15
14
13
5
6
7
8
N.C.
HA
WA
LA
HB
WB
LB
WP
SCL
SDA
A0
A1
A2
GND
N.C.
V
DD
TOP VIEW
MAX5477
MAX5478
MAX5479
14
13
12
11
10
9
8
1
2
3
4
5
6
7
V
DD
SCL
SDA
A0
HB
LA
WA
HA
A1
A2
GND
WP
LB
WB
TSSOP
(4.4mm x 5mm)
THIN QFN
(3mm x 3mm)
MAX5477
MAX5478
MAX5479
Pin Configurations
Chip Information
TRANSISTOR COUNT: 12,651
PROCESS: BiCMOS
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX5478EUD+ 功能描述:數(shù)字電位計 IC Dual 256-Tap NV I2C-Interface RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel
MAX5478EUD+ 制造商:Maxim Integrated Products 功能描述:DIGITAL POT 256 TAP I2C DUAL 5478
MAX5478EUD+T 功能描述:數(shù)字電位計 IC Dual 256-Tap NV I2C-Interface RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel
MAX5478EUD-T 功能描述:數(shù)字電位計 IC RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel
MAX5478EVCMODU 功能描述:數(shù)字電位計 IC Evaluation Kit/Evaluation System for the MAX5477/MAX5478/MAX5479 RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel