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參數(shù)資料
| 型號(hào)： | DS1851E-010TR |
| 英文描述： | Dual Temperature-Controlled NV Digital-to-Analog Converters |
| 中文描述： | 雙溫控非易失數(shù)字模擬轉(zhuǎn)換器 |
| 文件頁(yè)數(shù)： | 6/17頁(yè) |
| 文件大小： | 202K |
| 代理商： | DS1851E-010TR |
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DS1851
6 of 17
Memory Location
Name of Location
Function of Location
63h
Temperature LSB
This byte contains the LSB of the 12-bit 2’s
complement temperature output from the
temperature sensor.
2
-1
2
-2
2
-3
2
-4
X
X
X X
64h
Address Pointer
Calculated, current DAC address (80h–A7h).
The user-defined DAC setting at this location in
the respective look-up table will be loaded into
70h and 71h to set the two DACs.
General-purpose user memory
In the user-controlled setting mode, this block
contains the DAC-V setting.
In the user-controlled setting mode, this block
contains the DAC-G setting.
General-purpose user memory
This block contains the user-defined temperature
settings of the DACs. Values between 00h and
FFh can be written to either table to set the 8-bit
DACs. The first address location, 80h, is used to
set the DAC at -40°C. Each successive memory
location will contain the DAC setting for the
previous temperature +4°C. For example,
memory address 81h is the address that will set
the DAC in a -36°C environment.
65h to 6Fh
70h
User Memory
DAC-V Setting
71h
DAC-G Setting
72h to 7Fh
80h to A7h
User Memory
User-Defined Look-Up Table
DAC OPERATION
One DAC performs an 8-bit analog conversion using the difference between V
rc
and V
CC
as the reference.
The output values follow the following equation:
OutV = V
rc
+ (V
CC
– V
rc
) * DACreg1/255
DACreg1 is the decimal equivalent of the digital value to be converted to analog.
The other DAC performs an 8-bit analog conversion using the difference between V
rg
and GND as the
reference. The output values follow the following equation:
OutG = V
rg
- (V
rg
– GND) * DACreg2/255
DACreg2 is the decimal equivalent of the digital value to be converted to analog.
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| DS1852B-000 | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類(lèi)型:Differential 信噪比:107 dB 接口類(lèi)型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
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