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LTC2636IMS-HZ10 PDF预览

LTC2636IMS-HZ10

更新时间: 2024-10-28 05:43:51
品牌 Logo 应用领域
凌特 - Linear /
页数 文件大小 规格书
24页 350K
描述
Octal 12-/10-/8-Bit SPI VOUT DACs with10ppm/°C Reference

LTC2636IMS-HZ10 数据手册

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LTC2636  
Octal 12-/10-/8-Bit SPI V  
OUT  
DACs with10ppm/°C Reference  
FEATURES  
DESCRIPTION  
The LTC®2636 is a family of octal 12-, 10-, and 8-bit  
voltage-output DACs with an integrated, high-accuracy,  
low-drift 10ppm/°C reference in 14-lead DFN and 16-lead  
MSOP packages. It has a rail-to-rail output buffer and is  
guaranteed monotonic. The LTC2636-L has a full-scale  
output of 2.5V, and operates from a single 2.7V to 5.5V  
supply. The LTC2636-H has a full-scale output of 4.096V,  
and operates from a 4.5V to 5.5V supply. Each DAC can  
alsooperatewithanexternalreference,whichsetstheDAC  
full-scale output to the external reference voltage.  
n
Integrated Precision Reference  
2.5V Full-Scale 10ppm/°C (LTC2636-L)  
4.096V Full-Scale 10ppm/°C (LTC2636-H)  
n
Maximum INL Error: 2.5LSB (LTC2636-12)  
n
Low Noise: 0.75mV 0.1Hz to 200KHz  
P-P  
n
Guaranteed Monotonic Over –40°C to 125°C  
Temperature Range  
n
n
n
n
n
n
n
Selectable Internal or External Reference  
2.7V to 5.5V Supply Range (LTC2636-L)  
Ultralow Crosstalk Between DACs (<2.4nV•s)  
Low Power: 0.9mA at 3V (LTC2636-L)  
Power-On-Reset to Zero-Scale/Mid-Scale  
Double-Buffered Data Latches  
TheseDACscommunicateviaanSPI/MICROWIRE™-com-  
patible3-wireserialinterfacewhichoperatesatclockrates  
up to 50MHz. Hardware clear (CLR) and asynchronous  
DAC update (LDAC) pins are available in the MSOP pack-  
age. The LTC2636 incorporates a power-on reset circuit.  
Options are available for reset to zero-scale or reset to  
mid-scaleininternalreferencemode,orresettomid-scale  
in external reference mode after power-up.  
Tiny 14-Lead 4mm × 3mm DFN and 16-Lead MSOP  
Packages  
APPLICATIONS  
n
Mobile Communications  
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Process Control and Industrial Automation  
n
L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.  
SPI/MICROWIRE is a trademark of Linear Technology Corporation. All other trademarks are the  
property of their respective owners. Protected by U.S. Patents including 5396245, 5859606,  
6891433, 6937178, 7414561.  
Automatic Test Equipment  
n
Portable Equipment  
n
Automotive  
n
Optical Networking  
BLOCK DIAGRAM  
SWITCH  
REF  
INTERNAL REFERENCE  
V
REF  
GND  
V
V
CC  
12-Bit Integral Nonlinearity  
(LTC2636-LZ12)  
V
DAC A  
DAC B  
DAC C  
DAC H  
DAC G  
DAC F  
DAC E  
OUTA  
OUTH  
2
1
V
= 3V  
CC  
INTERNAL REF.  
V
V
V
V
REF  
REF  
REF  
REF  
V
OUTB  
OUTC  
V
OUTG  
V
0
V
V
V
OUTF  
V
OUTE  
–1  
–2  
V
REF  
REF  
DAC D  
OUTD  
0
1024  
2048  
3072  
4095  
CODE  
2636 TA01  
CS/LD  
SDI  
CONTROL LOGIC  
DECODE  
SCK  
(CLR)  
(LDAC)  
32-BIT SHIFT REGISTER  
POWER-ON RESET  
2636 BD  
( ) MSOP PACKAGE ONLY  
2636f  
1

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