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LTC2641IDD-12TRPBF

更新时间： 2024-11-10 04:43:43
品牌 Logo 应用领域
凌特 - Linear /
页数 文件大小 规格书
20页 303K
描述
16-/14-/12-Bit VOUT DACs in 3mm 】 3mm DFN

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LTC2641IDD-12TRPBF 数据手册

 浏览型号LTC2641IDD-12TRPBF的Datasheet PDF文件第2页浏览型号LTC2641IDD-12TRPBF的Datasheet PDF文件第3页浏览型号LTC2641IDD-12TRPBF的Datasheet PDF文件第4页浏览型号LTC2641IDD-12TRPBF的Datasheet PDF文件第5页浏览型号LTC2641IDD-12TRPBF的Datasheet PDF文件第6页浏览型号LTC2641IDD-12TRPBF的Datasheet PDF文件第7页 
LTC2641/LTC2642  
16-/14-/12-Bit V DACs in  
OUT  
3mm × 3mm DFN  
FEATURES  
DESCRIPTION  
The LTC®2641/LTC2642 are families of 16-, 14- and 12-bit  
unbufferedvoltageoutputDACs.TheseDACsoperatefrom  
asingle2.7Vto5.5Vsupplyandareguaranteedmonotonic  
over temperature. The LTC2641-16/LTC2642-16 provide  
16-bit performance ( 2LꢀS ꢁIL and 1LꢀS DILN over  
temperature. UnbufferedDACoutputsresultinlowsupply  
current of 120μA and a low offset error of 1LꢀS.  
■
Tiny 3mm × 3mm 8-Pin DFN Package  
■
Maximum 16-Bit INL Error: ±±LꢀB oꢁer Temperature  
■
Low 1±0μA ꢀupply Current  
■
Guaranteed Monotonic oꢁer Temperature  
■
Low 0.5nV•sec Glitch Impulse  
■
2.7V to 5.5V ꢀingle ꢀupply Operation  
■
Fast 1μs ꢀettling Time to 16 Sits  
■
Unbuffered Voltage Output Directly Drives 60k Loads  
Soth the LTC2641 and LTC2642 feature a reference input  
50MHz ꢀPꢁTM/QꢀPꢁTM/MꢁCROWꢁRETM Compatible  
■
range of 2V to V . V  
swings from 0V to V . For  
DD OUT  
REF  
ꢀerial ꢁnterface  
bipolar operation, the LTC2642 includes matched scaling  
■
Power-On Reset Clears DAC Output to Zero ꢀcale  
resistors for use with an external precision op amp (such  
(LTC2641N or Midscale (LTC2642N  
as the LT1678N, generating a V output swing at R .  
REF  
FS  
■
ꢀchmitt-Trigger ꢁnputs for Direct Optocoupler  
The LTC2641/LTC2642 use a simple ꢀPꢁ/MꢁCROWꢁRE  
compatible 3-wire serial interface which can be operated  
at clock rates up to 50MHz and can interface directly  
with optocouplers for applications requiring isolation. A  
power-on reset circuit clears the LTC2641’s DAC output  
to zero scale and the LTC2642’s DAC output to midscale  
when power is initially applied. A logic low on the CLR pin  
asynchronously clears the DAC to zero scale (LTC2641N  
or midscale (LTC2642N. These DACs are all specified over  
the commercial and industrial ranges.  
ꢁnterface  
Asynchronous CLR Pin  
■
⎯
⎯
⎯
■
8-Lead MꢀOP and 3mm × 3mm DFI Packages  
(LTC2641N  
10-Lead MꢀOP and 3mm × 3mm DFI Packages  
(LTC2642N  
■
⎯
⎯
⎯
APPLICATIONS  
■
High Resolution Offset and Gain Adjustment  
■
Process Control and ꢁndustrial Automation  
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.  
All other trademarks are the property of their respective owners.  
■
Automatic Test Equipment  
Data Aquisition ꢀystems  
■
TYPICAL APPLICATION  
Bipolar 16-Bit DAC  
LTC±64±-16 Integral Nonlinearity  
V
REF  
2.7V TO 5.5V  
2V TO V  
DD  
0.1μF  
1μF  
0.1μF  
1.0  
V
V
= 5V  
REF  
DD  
0.8  
0.6  
= 2.5V  
R
REF  
V
FB  
DD  
LTC2642  
2.5V RANGE  
5pF  
–
0.4  
INV  
0.2  
BIPOLAR V  
OUT  
REF  
1/2 LT1678  
+
–V  
TO V  
REF  
V
0
OUT  
16-BIT DAC  
POWER-ON  
RESET  
–0.2  
–0.4  
–0.6  
–0.8  
–1.0  
INL 25°C  
INL 90°C  
INL –45°C  
CS  
16-BIT DATA LATCH  
SCLK  
DIN  
CLR  
CONTROL  
LOGIC  
0
32768  
CODE  
49152  
16384  
65535  
16-BIT SHIFT REGISTER  
GND  
26412 TA01a  
LT1372 • G10  
26412f  
1
1234567...20

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