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LTC2654BIUF-L16PBF PDF预览

LTC2654BIUF-L16PBF

更新时间: 2024-11-08 05:43:51
品牌 Logo 应用领域
凌特 - Linear /
页数 文件大小 规格书
24页 333K
描述
Quad 16-/12-Bit Rail-to-Rail DACs with 10ppm/°C Max Reference

LTC2654BIUF-L16PBF 数据手册

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LTC2654  
Quad 16-/12-Bit Rail-to-Rail  
DACs with 10ppm/°C  
Max Reference  
FEATURES  
DESCRIPTION  
The LTC®2654 is a family of quad 16-/12-bit rail-to-rail  
DACswithintegrated10ppm/°Cmaximumreference. The  
DACs have built-in high performance, rail-to-rail, output  
buffers and are guaranteed monotonic. The LTC2654-L  
has a full-scale output of 2.5V with the integrated refer-  
ence and operates from a single 2.7V to 5.5V supply.  
The LTC2654-H has a full-scale output of 4.096V with  
the integrated reference and operates from a 4.5V to  
5.5V supply. Each DAC can also operate with an external  
reference, which sets the full-scale output to 2 times the  
external reference voltage.  
n
Precision Reference 10ppm/°C Max  
n
Maximum INL Error: ±±LꢀS aꢁ 1ꢂ6Siꢁs  
n
Low ±ꢃmꢄ ꢅMaxꢆ ꢇffseꢁ Error  
n
Guaranteed Monotonic Over Temperature  
n
Selectable Internal or External Reference  
n
2.7V to 5.5V Supply Range (LTC2654-L)  
n
Integrated Reference Buffers  
n
Ultralow Crosstalk Between DACs (<3nVs)  
n
Power-on-Reset to Zero-Scale/Mid-Scale  
n
Asynchronous DAC Update Pin  
n
Tiny 20-Lead 4mm × 4mm QFN and 16-Lead Narrow  
SSOP Packages  
These DACs communicate via a SPI/MICROWIRE™ com-  
patible4-wireserialinterfacewhichoperatesatclockrates  
up to 50MHz. The LTC2654 incorporates a power-on reset  
circuit that is controlled by the PORSEL pin. If PORSEL  
is tied to GND the DACs reset to zero-scale. If PORSEL is  
APPLICATIONS  
n
Mobile Communications  
n
Process Control and Industrial Automation  
tied to V , the DACs reset to mid-scale.  
CC  
n
Instrumentation  
L, LT, LTC, LTM, Linear Technology and the Linear logo 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, 6891433 and patent pending.  
n
Automatic Test Equipment  
n
Automotive  
BLOCK DIAGRAM  
REFIN/OUT  
REFCOMP  
INTERNAL REFERENCE  
INL Curve  
GND  
V
CC  
4
3
V
= 5V  
CC  
REFLO  
V
V
OUTA  
OUTD  
DAC A  
DAC B  
DAC D  
DAC C  
2
1
0
V
V
OUTC  
–1  
–2  
–3  
–4  
OUTB  
CS/LD  
PORSEL  
SDO  
POWER-ON  
RESET  
CONTROL LOGIC  
DECODE  
128  
16384  
32768  
CODE  
49152  
65535  
SCK  
2654 TA01b  
SDI  
32-BIT SHIFT REGISTER  
LDAC  
CLR  
2654 TA01a  
2654f  
1

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