參數(shù)資料
型號(hào)： DS3911T+T
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 23/24頁(yè)
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： 2,500
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： 帶卷 (TR)
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
8
Maxim Integrated
Detailed Description
The DS3911 operates in one of two modes: lookup table
(LUT) mode or digital-to-analog converter (DAC) mode.
In LUT mode, the DAC’s output is controlled as a func-
tion of the temperature measured by the device’s internal
temperature sensor and the pulse-density modulation
profile stored in the associated DAC’s LUT. In DAC mode,
the DAC’s output is controlled by the specific DAC’s DAC
VALUE, and DAC3 VALUE) using the I2C interface.
Detailed descriptions of these modes as well as additional
device features are discussed in subsequent sections.
Delta-Sigma DAC Output and Control
Four delta-sigma DAC outputs are provided, DAC0 to
DAC3. With the addition of an external RC filter, these
outputs provide four 10-bit resolution-analog outputs
with the full-scale range set by the input VREF pin. Each
output is either manually controlled or controlled using a
temperature-indexed LUT. A delta-sigma converter pro-
duces a digital output using pulse-density modulation.
It provides much lower output ripple than a standard
digital PWM output, given the same clock rate and filter
components.
Figure 2 shows two recommended filters. These external
RC filter components are chosen to greatly reduce the
output ripple while maintaining the desired response
time. Using resistors smaller than the recommended val-
ues can degrade the output accuracy.
The device’s delta-sigma outputs are 10 bits. For illus-
trative purposes, a 3-bit example is provided. Figure 3
shows each possible output of this 3-bit delta-sigma DAC.
The reference input voltage, VREF, is the supply voltage
for the output buffer of all DACs. The power supply con-
nected to VREF must be able to support the edge-rate
requirements of the delta-sigma outputs. In a typical
application, a 0.1FF capacitor should be connected
between the VREF and GND pins.
Figure 2. Recommended RC Filter for DAC Outputs
Figure 3. 3-Bit (8-Position) Delta-Sigma Example
DS3911
DAC
1k
1k
0.1F
VOLTAGE OUTPUT
DS3911
DAC
1k
1k
0.1F
CURRENT SINK
2k
1
2
3
4
5
6
7
0
DAC OUPUT
DAC
VALUE
REGISTER
SETTING
(3-BIT
EXAMPLE)
相關(guān)PDF資料
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
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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
DS3920T-001+T 功能描述:電流和電力監(jiān)控器、調(diào)節(jié)器 Fast APD Bias w/20mA limit 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
DS3920T-002+ 功能描述:電流和電力監(jiān)控器、調(diào)節(jié)器 Fast Current Mirror 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
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*