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LTC2374-16

更新时间： 2024-09-25 14:57:51
品牌 Logo 应用领域
亚德诺 - ADI /
页数 文件大小 规格书
44页 2296K
描述
具 96dB SNR 的 16 位、1.6Msps、8 通道 SAR ADC

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中文翻译

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LTC2374-16 数据手册

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LTC2374-16  
16-Bit, 1.6Msps, 8-Channel  
SAR ADC with 96dB SNR  
FeaTures  
DescripTion  
The LTC®2374-16 is a low noise, high speed, 8-channel  
16-bitsuccessiveapproximationregister(SAR)ADC.Oper-  
atingfromasingle5Vsupply,theLTC2374-16hasahighly  
configurable, low crosstalk 8-channel input multiplexer,  
supporting fully differential, pseudo-differential unipolar  
and pseudo-differential bipolar analog input ranges. The  
LTC2374-16 achieves ±1LSꢀ INL (maximum) in all input  
ranges, no missing codes at 16-bits and 96dꢀ (fully dif-  
ferential)/ 93dꢀ (pseudo-differential) SNR (typical).  
n
1.6Msps Throughput Rate  
n
16-Bit Resolution with No Missing Codes  
n
8-Channel Multiplexer with Selectable Input Range  
n
Fully Differential (±±.ꢀ06ꢁV  
n
Pseudo-Differential Unipolar (ꢀꢁ to ±.ꢀ06ꢁV  
n
Pseudo-Differential Bipolar (±ꢂ.ꢀ±8ꢁV  
n
INL: ±1LSB (MaxiꢃuꢃV  
n
SNR: 06dB (Fully DifferentialV/03dB (Pseudo-  
DifferentialV (TypicalV at f = 1kHz  
IN  
IN  
n
n
n
n
n
n
n
n
n
THD: –11±dB (TypicalV at f = 1kHz  
TheLTC2374-16hasanonboardlowdrift(20ppm/°Cmax)  
2.048V temperature-compensated reference anda single-  
shot capable reference buffer. The LTC2374-16 also has a  
high speed SPI-compatible serial interface that supports  
1.8V, 2.5V, 3.3V and 5V logic through which a sequencer  
with a depth of 16 may be programmed. An internal os-  
cillator sets the conversion time, easing external timing  
considerations. The LTC2374-16 dissipates only 55mW  
and automatically naps between conversions, leading to  
reduced power dissipation that scales with the sampling  
rate. A sleep mode is also provided to reduce the power  
consumption of the LTC2374-16 to 300μW for further  
power savings during inactive periods.  
Programmable Sequencer  
Selectable Digital Gain Compression  
Single 5V Supply with 1.8V to 5V I/O Voltages  
SPI-Compatible Serial I/O  
Onboard 2.048V Reference and Reference ꢀuffer  
No Pipeline Delay, No Cycle Latency  
Power Dissipation 55mW (Typical)  
32-Lead 5mm × 5mm QFN Package  
applicaTions  
n
Programmable Logic Controllers  
n
Industrial Process Control  
n
High Speed Data Acquisition  
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and  
SoftSpan is a trademark of Analog Devices, Inc. All other trademarks are the property of their  
respective owners. Protected by U.S. Patents, including 7705765, 7961132, 8319673.  
n
Portable or Compact Instrumentation  
n
ATE  
Typical applicaTion  
Integral Nonlinearity  
vs Output Code  
+
–
IN /IN  
5V  
1.0  
UNIPOLAR  
FULLY DIFFERENTIAL  
BIPOLAR  
UNIPOLAR  
1.8V TO 5V  
0.8  
0.6  
+4.096V  
0V  
10µF  
2.2µF  
0.1µF  
0.4  
FULLY  
DIFFERENTIAL  
+4.096V  
10Ω  
10Ω  
V
V
+
OV  
DD  
0.2  
DD  
DDLBYP  
CH0  
CH1  
CH2  
CH3  
CH4  
CH5  
CH6  
CH7  
COM  
RESET  
RDL  
+
–
LTC2374-16  
0.0  
1200pF  
1200pF  
+2.048V  
0V  
–0.2  
–0.4  
–0.6  
–0.8  
–1.0  
MUX  
16-BIT  
SAMPLING ADC  
SDO  
SCK  
SDI  
BUSY  
CNV  
–
BIPOLAR  
+4.096V  
SAMPLE  
CLOCK  
REFBUF REFIN  
47µF 0.1µF  
GND  
+2.048V  
0V  
237416 TA01a  
0
16384  
32768  
OUTPUT CODE  
49152  
65536  
237416 TA01b  
237416fa  
1
For more information www.linear.com/LTC2374-16  
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