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參數(shù)資料
| 型號(hào)： | DS1847B-010 |
| 英文描述： | Dual Temperature-Controlled NV Variable Resistor |
| 中文描述： | 雙溫控非易失可變電阻 |
| 文件頁數(shù)： | 6/17頁 |
| 文件大小： | 239K |
| 代理商： | DS1847B-010 |
DS1847
6 of 17
PROGRAMMING THE LOOK-UP TABLE (LUT)
The following equation can be used to determine which resistor position setting, 00h – FFh, should be
written in the LUT to achieve a given resistance at a specific temperature.
2
2
25
25
1
25
25
1
)
,
,
(
C
z
C
y
x
C
w
C
v
u
R
C
R
pos
DS1847-050
= 3.78964 for the 50k resistor
= 19.74866 for the 10k resistor
DS1847-010
= 8.394533 for both 10k resistors
R = resistance desired at the output terminal
C = temperature in degrees Celsius
u, v, w, x, y, and z are calibration constants programmed into each of the corresponding look-up tables.
Their addresses and LSB values are given in Table 1. Resistor 1 variables are found in Look-Up Table 1
of the EEPROM, and Resistor 2 variables are found in Look-Up Table 2. After these values are read, they
should be overwritten with the appropriate temperature-specific resistance settings.
LOOK-UP VARIABLE ADDRESSES
Table 1
Address in
LUT (HEX)
28 – 29
u
2A – 2B
v
2C – 2D
w
2E – 2F
x
30 – 31
y
32 – 33
z
Variable
LSB
2
-8
10
-6
10
-9
2
-8
10
-7
10
-10
When shipped from the factory, all other memory locations in the LUTs are programmed to FFh (except
bytes 00h-07h of Table 1 and 2 which may be factory programmed to values other than FFh).
Note:
Memory locations 44h – 47h, which cover the temperature range (+96oC to +102oC), are outside
of the specified operating temperature range (-40oC to +95oC). However, the values stored in these
locations will act as valid resistance settings if the temperature exceeds +95oC. Therefore, Dallas
Semiconductor recommends that the user programs a resistance value into
all
LUT locations. Failure to
do so will result in the part being set to the default value.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS1847B-050 | Dual Temperature-Controlled NV Variable Resistor |
| DS1847E-010 | Dual Temperature-Controlled NV Variable Resistor |
| DS1847E-050 | Dual Temperature-Controlled NV Variable Resistor |
| DS1847 | Dual Temperature-Controlled NV Variable Resistor |
| DS1848B-010 | Dual Temperature-Controlled NV Variable Resistor & Memory |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1847B-010/T&R | 制造商:Maxim Integrated Products 功能描述:DUAL NV TEMP CNTRL VAR RES 10/10K T - Tape and Reel |
| DS1847B-010/T&R | 功能描述:數(shù)字電位計(jì) 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(chǔ)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 |
| DS1847B-010+ | 功能描述:數(shù)字電位計(jì) IC Dual Temp Controlled NV Variable Resistor 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(chǔ)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 |
| DS1847B-010+T&R | 制造商:Maxim Integrated Products 功能描述:DGTL POTENTIOMETER 256POS 10KOHM DUAL 16CSBGA - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC RES TEMP-CNTRL 10/10K 16-BGA 制造商:Maxim Integrated Products 功能描述:Digital Potentiometer ICs Dual Temp Controlled NV Variable Resistor |
| DS1847B-010+T&R | 功能描述:數(shù)字電位計(jì) IC Dual Temp Controlled NV Variable Resistor 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(chǔ)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 |
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