R3 and IBIAS both have a tolerance of ±" />
參數(shù)資料
型號: AD5410ACPZ-REEL7
廠商: Analog Devices Inc
文件頁數(shù): 19/32頁
文件大?。?/td> 0K
描述: IC DAC 12BIT SRL 40LFCSP
設計資源: Simplified 12-Bit, 4 mA-to-20 mA Output Solution Using AD5410 (CN0081)
標準包裝: 1
設置時間: 40µs
位數(shù): 12
數(shù)據(jù)接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
轉換器數(shù)目: 1
電壓電源: 模擬和數(shù)字
功率耗散(最大): 950mW
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 40-VFQFN 裸露焊盤,CSP
供應商設備封裝: 40-LFCSP-VQ(6x6)
包裝: 標準包裝
輸出數(shù)目和類型: 1 電流,單極
采樣率(每秒): *
其它名稱: AD5410ACPZ-REEL7DKR
AD5410/AD5420
Data Sheet
Rev. F | Page 26 of 32
R3 and IBIAS both have a tolerance of ±10% and a temperature
coefficient of 30 ppm/°C. Connecting to R3SENSE rather than
AVDD avoids incorporating into R3 internal metal connections
that have large temperature coefficients and result in large
errors. See Figure 49 for a plot of R3 vs. ambient temperature
and Figure 50 for a plot of R3 vs. output current.
40.98
40.96
40.94
40.92
40.90
40.88
40.86
40.84
40.82
40.80
40.78
–40
–20
0
20
40
60
80
100
AMBIENT TEMPERATURE (°C)
R3
RE
SI
ST
ANCE
(
)
07027-
051
IOUT = 12mA
R3 = VR3/(12mA + 444A)
Figure 49. R3 Resistor Value vs. Temperature
42.0
41.8
41.6
41.4
41.2
41.0
40.8
40.6
40.4
40.2
40.0
0
5
10
15
20
25
IOUT (mA)
R3
(
)
07027-
052
TA = 25°C
R3 = VR3/(IOUT + 444A)
Figure 50. R3 Resistor Value vs. IOUT
To eliminate errors due to the tolerances of R3 and IBIAS, a two-
measurement calibration can be performed as the following
example illustrates:
1. Program code 0x1000 and measure IOUT and VR3. In this
example, the measured values are
IOUT = 1.47965 mA
VR3 = 79.55446 mV
2. Program Code 0xF000 and measure IOUT and VR3 again.
The measured values this time are
IOUT = 22.46754 mA
VR3 = 946.39628 mV
Using this information and Equation 2, two simultaneous
equations can be generated from which the values of R3 and
IBIAS can be calculated as follows:
OUT
R
BIAS
R
OUT
I
R
V
I
R
V
I
=
=
3
Simultaneous Equation 1
00147965
.
0
3
07955446
.
0
=
R
I
BIAS
Simultaneous Equation 2
02246754
.
0
3
94639628
.
0
=
R
I
BIAS
From these two equations,
302
.
41
3
=
R
Ω and
5
.
446
=
BIAS
I
μA
And Equation 2 becomes
A
V
I
R
OUT
5
.
446
302
.
41
3
=
相關PDF資料
PDF描述
VI-252-MY-F3 CONVERTER MOD DC/DC 15V 50W
VI-B6M-MV-F4 CONVERTER MOD DC/DC 10V 150W
VI-B6M-MV-F2 CONVERTER MOD DC/DC 10V 150W
VI-251-MY-F2 CONVERTER MOD DC/DC 12V 50W
VI-B6M-MV-F1 CONVERTER MOD DC/DC 10V 150W
相關代理商/技術參數(shù)
參數(shù)描述
AD5410AREZ 功能描述:IC DAC 12BIT 1CH SER 24TSSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉換器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:50 系列:- 設置時間:4µs 位數(shù):12 數(shù)據(jù)接口:串行 轉換器數(shù)目:2 電壓電源:單電源 功率耗散(最大):- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP,8-MSOP(0.118",3.00mm 寬) 供應商設備封裝:8-uMAX 包裝:管件 輸出數(shù)目和類型:2 電壓,單極 采樣率(每秒):* 產品目錄頁面:1398 (CN2011-ZH PDF)
AD5410AREZ-REEL7 功能描述:IC DAC 12BIT 1CH SER 24TSSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉換器 系列:- 產品培訓模塊:LTC263x 12-, 10-, and 8-Bit VOUT DAC Family 特色產品:LTC2636 - Octal 12-/10-/8-Bit SPI VOUT DACs with 10ppm/°C Reference 標準包裝:91 系列:- 設置時間:4µs 位數(shù):10 數(shù)據(jù)接口:MICROWIRE?,串行,SPI? 轉換器數(shù)目:8 電壓電源:單電源 功率耗散(最大):2.7mW 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-WFDFN 裸露焊盤 供應商設備封裝:14-DFN-EP(4x3) 包裝:管件 輸出數(shù)目和類型:8 電壓,單極 采樣率(每秒):*
AD5412 制造商:AD 制造商全稱:Analog Devices 功能描述:Low Power HART Modem
AD5412_09 制造商:AD 制造商全稱:Analog Devices 功能描述:Single Channel, 12-/16-Bit, Serial Input, Current Source and Voltage Output DACs
AD5412ACPZ 制造商:Analog Devices 功能描述:DAC 1-CH Segment 12-bit 40-Pin LFCSP EP