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參數(shù)資料
| 型號： | DS3911T+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 10/24頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DAC 10BIT I2C QUAD 14TDFN |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 100 |
| 位數(shù)： | 10 |
| 數(shù)據(jù)接口： | I²C，串行 |
| 轉(zhuǎn)換器數(shù)目： | 4 |
| 電壓電源： | 單電源 |
| 功率耗散（最大）： | 1.74W |
| 工作溫度： | -40°C ~ 100°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 14-WFDFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 14-TDFN-EP（3x5） |
| 包裝： | 管件 |
| 輸出數(shù)目和類型： | 4 電壓，單極 |
| 采樣率（每秒）： | * |
DS3911
Temperature-Controlled, Nonvolatile,
I2C Quad DAC
18
Maxim Integrated
Lower Memory, Register 03h: TINDEX
Lower Memory, Register 04h–05h: TEMP VALUE
POWER-ON VALUE
0000h
ACCESS
R
MEMORY TYPE
Volatile
04h
S
26
25
24
23
22
21
20
05h
2-1
2-2
2-3
2-4
0
BIT 7
BIT 0
Left-justified signed two’s complement direct-to-temperature measurement. The lower 4 bits always return zero.
The temperature reading is clamped to -128NC and +127.9375NC.
POWER-ON VALUE
00h
ACCESS
When AEN = 1: R
ACCESS
When AEN = 0: R/W
MEMORY TYPE
Volatile
03h
27
26
25
24
23
22
21
20
BIT 7
BIT 0
The TINDEX register is the temperature indexed address pointer. The TINDEX value corresponds directly to the
LUT memory address for the given temperature ranges. The DAC OFFSET address is calculated based on the
TINDEX value, so only one pointer is necessary.
The pointer value is calculated based on the current temperature reading (see the below equation). The calculation
uses different math depending on which LUT range (2NC or 4NC) the current temperature measurement resides in.
temp 56
Temperature 40
Temperature 8
TINDEX
128
4
2
<≥
+
=
+=
+
A 1NC hysteresis is implemented in the TINDEX value calculation by adding 1NC to temperature changes of nega-
tive slope.
When the AEN bit is high, the TINDEX register is read-only and the pointer is updated after the temperature and
voltage conversions have completed. When the AEN bit is cleared, I2C writes to the TINDEX register are enabled
and updates from the LUT controller are blocked. The register can be used to force DAC updates to be based
on the user-selected index. The TINDEX register directly addresses the LUT memory locations by dropping
TINDEX[7] and forcing it high. When AEN = 0, any address between 80h and FFh can be addressed. To obtain
known results in the DAC VALUE register, TINDEX should be kept between 80h and AFh.
TINDEX value is clamped for temperatures below -40NC and above 102NC.
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| DS3911T+ | 功能描述:ADC / DAC多通道 Fast APD Bias RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換速率: 分辨率:8 bit 接口類型:SPI 電壓參考: 電源電壓-最大:3.6 V 電源電壓-最小:2 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-40 |
| DS3911T+T | 功能描述:ADC / DAC多通道 Fast APD Bias RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換速率: 分辨率:8 bit 接口類型:SPI 電壓參考: 電源電壓-最大:3.6 V 電源電壓-最小:2 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-40 |
| DS3920 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Fast Current Mirror |
| DS3920_1112 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Fast Current Mirror |
| DS3920T-001+ | 功能描述:電流和電力監(jiān)控器、調(diào)節(jié)器 Fast APD Bias RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Current Regulators 電源電壓-最大:48 V 電源電壓-最小:5.5 V 工作溫度范圍:- 40 C to + 150 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HPSO-8 封裝:Reel |
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