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LTC2378CMS-20PBF

更新时间： 2024-01-24 22:45:19
品牌 Logo 应用领域
凌特 - Linear /
页数 文件大小 规格书
28页 1062K
描述
20-Bit, 1Msps, Low Power SAR ADC with 0.5ppm INL

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LTC2378CMS-20PBF 技术参数

是否Rohs认证： 符合生命周期：Transferred
零件包装代码：MSOP包装说明：TSSOP, TSSOP16,.19,20
针数：16Reach Compliance Code：compliant
HTS代码：8542.39.00.01风险等级：5.15
最大模拟输入电压：5.1 V最小模拟输入电压：-2.5 V
最长转换时间：0.675 µs转换器类型：ADC, SUCCESSIVE APPROXIMATION
JESD-30 代码：R-PDSO-G16JESD-609代码：e3
长度：4.039 mm最大线性误差 (EL)：0.0002%
湿度敏感等级：1模拟输入通道数量：1
位数：20功能数量：1
端子数量：16最高工作温度：70 °C
最低工作温度：输出位码：2'S COMPLEMENT BINARY
输出格式：SERIAL封装主体材料：PLASTIC/EPOXY
封装代码：TSSOP封装等效代码：TSSOP16,.19,20
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：NOT SPECIFIED电源：2.5 V
认证状态：Not Qualified采样速率：1 MHz
座面最大高度：1.1 mm子类别：Analog to Digital Converters
标称供电电压：2.5 V表面贴装：YES
技术：CMOS温度等级：COMMERCIAL
端子面层：Matte Tin (Sn)端子形式：GULL WING
端子节距：0.5 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：3 mm
Base Number Matches：1

LTC2378CMS-20PBF 数据手册

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LTC2378-20  
20-Bit, 1Msps, Low Power  
SAR ADC with 0.5ppm INL  
FeaTures  
DescripTion  
The LTC®2378-20 is a low noise, low power, high speed  
20-bit successive approximation register (SAR) ADC.  
Operating from a 2.5V supply, the LTC2378-20 has a  
n
1Msps Throughput Rate  
n
±±0.ppꢀ INꢁ ꢂTyp)  
n
Guaranteed 2±-Bit No Missing Codes  
ꢁow Power: 21ꢀW at 1Msps, 21µW at 1ksps  
1±4dB SNR ꢂTyp) at f = 2kHz  
–12.dB THD ꢂTyp) at f = 2kHz  
n
V
fully differential input range with V ranging from  
REF REF  
n
2.5V to 5.1V. The LTC2378-20 consumes only 21mW and  
achieves 2ppm INL maximum, no missing codes at 20  
bits with 104dB SNR.  
IN  
IN  
n
n
n
n
n
n
n
n
n
n
n
Digital Gain Coꢀpression ꢂDGC)  
Guaranteed Operation to 85°C  
2.5V Supply  
The LTC2378-20 has a high speed SPI-compatible serial  
interface that supports 1.8V, 2.5V, 3.3V and 5V logic  
while also featuring a daisy-chain mode. The fast 1Msps  
throughput with no cycle latency makes the LTC2378-20  
ideally suited for a wide variety of high speed applications.  
Aninternaloscillatorsetstheconversiontime,easingexter-  
nal timing considerations. The LTC2378-20 automatically  
powers down between conversions, leading to reduced  
power dissipation that scales with the sampling rate.  
Fully Differential Input Range V  
REF  
V
Input Range from 2.5V to 5.1V  
REF  
No Pipeline Delay, No Cycle Latency  
1.8V to 5V I/O Voltages  
SPI-Compatible Serial I/O with Daisy-Chain Mode  
Internal Conversion Clock  
16-Lead MSOP and 4mm × 3mm DFN Packages  
The LTC2378-20 features a unique digital gain compres-  
sion(DGC)function,whicheliminatesthedriveramplifier’s  
negative supply while preserving the full resolution of the  
ADC. When enabled, the ADC performs a digital scaling  
applicaTions  
n
Medical Imaging  
n
High Speed Data Acquisition  
n
Portable or Compact Instrumentation  
Industrial Process Control  
Low Power Battery-Operated Instrumentation  
ATE  
function that maps zero-scale code from 0V to 0.1 • V  
REF  
n
and full-scale code from V  
to 0.9 • V . For a typical  
REF  
REF  
n
reference voltage of 5V, the full-scale input range is now  
0.5V to 4.5V, which provides adequate headroom for  
powering the driving amplifier from a single 5.5V supply.  
n
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and  
SoftSpan is a trademark of Linear Technology Corporation. All other trademarks are the  
property of their respective owners. Patents Pending. Protected by U.S. Patents, including  
7705765, 7961132, 8319673.  
Typical applicaTion  
Integral Nonlinearity vs Output Code  
2.0  
2.5V 1.8V TO 5V  
10µF  
1.5  
0.1µF  
1.0  
0.5  
V
OV  
DD  
CHAIN  
RDL/SDI  
SDO  
SCK  
BUSY  
CNV  
REF/DGC  
DD  
6800pF  
3300pF  
6800pF  
V
V
REF  
10Ω  
10Ω  
+
–
IN  
+
–
0
0V  
LTC2378-20  
REF  
–0.5  
–1.0  
–1.5  
–2.0  
IN  
SAMPLE CLOCK  
0V  
V
REF  
GND  
REF  
237820 TA01  
2.5V TO 5.1V  
47µF  
(X7R, 1210 SIZE)  
0
262144  
524288  
786432 1048576  
OUTPUT CODE  
237820 TA02  
237820f  
1
For more information www.linear.com/LTC2378-20  
1234567...28

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