- 您现在的位置：买卖IC网 > PDF目录8541 > DS3911T+T (Maxim Integrated Products)IC DAC 10BIT I2C QUAD 14TDFN PDF资料下载
参数资料
| 型号： | DS3911T+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/24页 |
| 文件大小： | 0K |
| 描述： | IC DAC 10BIT I2C QUAD 14TDFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 位数： | 10 |
| 数据接口： | I²C，串行 |
| 转换器数目： | 4 |
| 电压电源： | 单电源 |
| 功率耗散（最大）： | 1.74W |
| 工作温度： | -40°C ~ 100°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 14-WFDFN 裸露焊盘 |
| 供应商设备封装： | 14-TDFN-EP（3x5） |
| 包装： | 带卷 (TR) |
| 输出数目和类型： | 4 电压，单极 |
| 采样率（每秒）： | * |
DS3911
Temperature-Controlled, Nonvolatile,
I2C Quad DAC
10
Maxim Integrated
memory locations by dropping TINDEX[7] and forcing
it high. When AEN = 0, any address between 80h and
FFh can be addressed. To get known results in the DAC
and AFh.
The device monitors the internal temperature by repeat-
edly polling the temperature sensor’s result at a rate of
tFRAME. Each cycle, for the DAC whose corresponding
EN bit is set, the device reads the internal temperature
once, and, based on that temperature, calculates the
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.
These two locations provide the values that eventually
become the 10-bit DAC input, DAC VALUE. This data
that gets loaded into the DAC VALUE register is a math
function of the temperature-indexed LUT value and the
temperature-indexed OFFSET value, as follows:
DAC[9:0] = LUT Setting + 4 x OFFSET Setting
where the DAC[9:0] DAC control value is left-justified in
the 16-bit DAC VALUE register.
DAC VALUE[15:0] = DAC[9:0] x 64
Example Calculation for DAC1:
Assumptions:
1) Temperature is 43NC.
2) DAC1 OFFSET index associated with 43NC is memory
table location FCh and contains data = 2Ah.
3) DAC1 LUT index associated with 43NC is memory
table location 94h and contains data = 7Bh.
DAC1 = 7Bh + 4 x 2Ah = 123h = 291
DAC1 VALUE = 291 x 64
Note: Loss of information occurs if the result of the DAC
VALUE math function described above is greater than
OFFSET values to ensure this overflow does not occur.
The eight DAC OFFSET registers can be independently
set to achieve any desired temperature coefficient
(tempco) on its associated DAC. Figure 4 demonstrates
Figure 4. DAC OFFSET LUT Examples
DAC OFFSET LUTs
EIGHT REGISTERS PER DAC
0
255
511
DELTA-SIGMA
DACs
767
1023
EACH OFFSET REGISTER CAN BE INDEPENDENTLY SET BETWEEN
0 AND 1020. 1020 = 4 x FFh. THIS EXAMPLE ILLUSTRATES POSITIVE
AND NEGATVE TEMPCO.
DAC
LUT
BITS
7:0
F8h
DAC
LUT
BITS
7:0
F9h
DAC
LUT
BITS
7:0
FAh
DAC
LUT
BITS
7:0
FBh
DAC
LUT
BITS
7:0
FCh
DAC
LUT
BITS
7:0
FDh
DAC
LUT
BITS
7:0
FEh
DAC
LUT
BITS
7:0
FFh
0
255
511
-40°C
-8°C
+8°C
+24°C +40°C +56°C +70°C +88°C +104°C
DELTA-SIGMA
DACs
767
1023
EACH OFFSET REGISTER CAN BE INDEPENDENTLY
SET BETWEEN 0 AND 1020. 1020 = 4 x FFh. THIS
EXAMPLE ILLUSTRATES POSITIVE TEMPCO.
DAC
LUT
BITS
7:0
F8h
DAC
LUT
BITS
7:0
F9h
DAC
LUT
BITS
7:0
FAh
DAC
LUT
BITS
7:0
FBh
DAC
LUT
BITS
7:0
FCh
DAC
LUT
BITS
7:0
FDh
DAC
LUT
BITS
7:0
FEh
DAC
LUT
BITS
7:0
FFh
DAC OFFSET LUTs
EIGHT REGISTERS PER DAC
-40°C
-8°C
+8°C
+24°C +40°C +56°C +70°C +88°C +104°C
OFFSET MEMORY
LOCATIONS FOR
THE GIVEN
TEMPERATURE
相关PDF资料 |
PDF描述 |
|---|---|
| LT6553CGN#TRPBF | IC AMP VIDEO TRIPLE GAIN2 16SSOP |
| VE-J4X-MW-S | CONVERTER MOD DC/DC 5.2V 100W |
| VE-B3F-MU-F4 | CONVERTER MOD DC/DC 72V 200W |
| LT6553CGN#TR | IC AMP VIDEO TRIPLE GAIN2 16SSOP |
| VE-J4V-MW-S | CONVERTER MOD DC/DC 5.8V 100W |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS3920 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Fast Current Mirror |
| DS3920_1112 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Fast Current Mirror |
| DS3920T-001+ | 功能描述:电流和电力监控器、调节器 Fast APD Bias RoHS:否 制造商:STMicroelectronics 产品:Current Regulators 电源电压-最大:48 V 电源电压-最小:5.5 V 工作温度范围:- 40 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:HPSO-8 封装:Reel |
| DS3920T-001+T | 功能描述:电流和电力监控器、调节器 Fast APD Bias w/20mA limit RoHS:否 制造商:STMicroelectronics 产品:Current Regulators 电源电压-最大:48 V 电源电压-最小:5.5 V 工作温度范围:- 40 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:HPSO-8 封装:Reel |
| DS3920T-002+ | 功能描述:电流和电力监控器、调节器 Fast Current Mirror RoHS:否 制造商:STMicroelectronics 产品:Current Regulators 电源电压-最大:48 V 电源电压-最小:5.5 V 工作温度范围:- 40 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:HPSO-8 封装:Reel |
发布紧急采购，3分钟左右您将得到回复。