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LTC2372-16_15 PDF预览

LTC2372-16_15

更新时间： 2024-02-14 10:28:35
品牌 Logo 应用领域
凌特 - Linear /
页数 文件大小 规格书
50页 2802K
描述
16-Bit, 500ksps, 8-Channel SAR ADC with 96dB SNR

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LTC2372-16_15 数据手册

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LTC2372-16  
16-Bit, 500ksps, 8-Channel  
SAR ADC with 96dB SNR  
FeaTures  
DescripTion  
500ksps Throughput Rate  
The LTC®2372-16 is a low noise, high speed, 8-channel  
16-bitsuccessiveapproximationregister(SAR)ADC.Oper-  
atingfromasingle5Vsupply,theLTC2372-16hasahighly  
configurable, low crosstalk 8-channel input multiplexer,  
supporting fully differential, pseudo-differential unipolar  
and pseudo-differential bipolar analog input ranges. The  
LTC2372-16 achieves 1LSB INL (maximum) in all input  
ranges, no missing codes at 16-bits and 96dB (fully  
differential)/93.5dB (pseudo-differential) SNR (typical).  
n
n
16-Bit Resolution with No Missing Codes  
n
8-Channel Multiplexer with Selectable Input Range  
n
Fully Differential (±±40ꢀ6ꢁV  
n
Pseudo-Differential Unipolar (0ꢁ to ±40ꢀ6ꢁV  
n
Pseudo-Differential Bipolar (±ꢂ40±8ꢁV  
n
INL: ±1LSB (MaxiꢃuꢃV  
n
SNR: ꢀ6dB (Fully DifferentialV/ꢀ345dB (Pseudo-  
DifferentialV (TypicalV at f = 1kHz  
IN  
IN  
n
n
n
n
n
n
n
n
n
n
THD: –110dB (TypicalV at f = 1kHz  
The LTC2372-16 has an onboard low drift (20ppm/°C  
max) 2.048V temperature-compensated reference and  
a single-shot capable reference buffer. The LTC2372-16  
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  
internaloscillatorsetstheconversiontime,easingexternal  
timing considerations. The LTC2372-16 dissipates only  
27mW 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 LTC2372-16 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 Buffer  
No Pipeline Delay, No Cycle Latency  
Power Dissipation 27mW (Typical)  
Guaranteed Operation to 125°C  
32-Lead 5mm × 5mm QFN Package  
applicaTions  
n
Programmable Logic Controllers  
n
Industrial Process Control  
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. Protected by U.S. Patents, including 7705765, 7961132, 8319673.  
n
High Speed Data Acquisition  
n
Portable or Compact Instrumentation  
n
ATE  
Integral Nonlinearity  
vs Output Code  
Typical applicaTion  
5V  
1.0  
4.096V  
1.8V TO 5V  
FULLY DIFFERENTIAL  
BIPOLAR  
UNIPOLAR  
0.8  
0V  
10µF  
2.2µF  
0.1µF  
0.6  
0.4  
0V  
10Ω  
V
V
OV  
DD  
DD  
DDLBYP  
4.096V  
CH0  
CH1  
CH2  
CH3  
CH4  
CH5  
CH6  
CH7  
COM  
RESET  
RDL  
0.2  
+
LTC2372-16  
1200pF  
1200pF  
0V  
4.096V  
0V  
–0.0  
–0.2  
–0.4  
–0.6  
–0.8  
–1.0  
+
–
MUX  
16-BIT  
SAMPLING ADC  
SDO  
SCK  
SDI  
BUSY  
CNV  
10Ω  
–
SAMPLE  
CLOCK  
4.096V  
0V  
REFBUF REFIN  
47µF 0.1µF  
GND  
237216 TA01a  
0
16384  
32768  
49152  
65536  
2.048V  
OUTPUT CODE  
237216 TA01b  
237216f  
1
For more information www.linear.com/LTC2372-16  
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