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參數(shù)資料
| 型號： | DS1851E-010+T&R |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 15/18頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DAC DUAL NV TEMP CNTRL 8TSSOP |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 位數(shù)： | 8 |
| 數(shù)據(jù)接口： | 串行 |
| 轉(zhuǎn)換器數(shù)目： | 2 |
| 電壓電源： | 單電源 |
| 工作溫度： | -40°C ~ 95°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-TSSOP（0.173"，4.40mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-TSSOP |
| 包裝： | 帶卷 (TR) |
| 輸出數(shù)目和類型： | 2 電壓，單極 |
| 采樣率（每秒）： | * |
DS1851
6 of 18
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.
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.
65h to 6Fh
User Memory
General-purpose user memory
70h
DAC-V Setting
In the user-controlled setting mode, this block
contains the DAC-V setting.
71h
DAC-G Setting
In the user-controlled setting mode, this block
contains the DAC-G setting.
72h to 7Fh
User Memory
General-purpose user memory
80h to A7h
User-Defined Look-Up Table
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.
DAC OPERATION
One DAC performs an 8-bit analog conversion using the difference between Vrc and VCC as the reference.
The output values follow the following equation:
OutV = Vrc + (VCC – Vrc) * 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 Vrg and GND as the
reference. The output values follow the following equation:
OutG = Vrg - (Vrg – GND) * DACreg2/255
DACreg2 is the decimal equivalent of the digital value to be converted to analog.
2
-1 2-2 2-3 2-4 X X X X
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1852 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Optical Transceiver Diagnostic Monitor |
| 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 輸入類型:Differential 信噪比:107 dB 接口類型: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 |
| DS1852B-000/C | 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 輸入類型:Differential 信噪比:107 dB 接口類型: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 |
| DS1852B-000/T&R | 制造商:Maxim Integrated Products 功能描述:IC MONITOR TXRX OPTICAL 25-BGA |
| DS1852B-000/T&R | 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 輸入類型:Differential 信噪比:107 dB 接口類型: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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