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參數(shù)資料
| 型號(hào)： | LTC2379IDE-18#PBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | ADC |
| 英文描述： | 1-CH 18-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO16 |
| 封裝： | 4 X 3 MM, LEAD FREE, PLASTIC, MO-229WGED-3, DFN-16 |
| 文件頁(yè)數(shù)： | 1/24頁(yè) |
| 文件大?。?/td> | 2848K |
| 代理商： | LTC2379IDE-18#PBF |
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LTC2379-18
1
237918f
TYPICAL APPLICATION
FEATURES
DESCRIPTION
18-Bit, 1.6Msps, Low Power
SAR ADC with 101.2dB SNR
The LTC2379-18 is a low noise, low power, high speed
18-bit successive approximation register (SAR) ADC. Op-
erating from a 2.5V supply, the LTC2379-18 has a ±VREF
fullydifferentialinputrangewithVREFrangingfrom2.5Vto
5.1V.TheLTC2379-18consumesonly18mWandachieves
±2LSB INL maximum, no missing codes at 18-bits with
101.2dB SNR.
The LTC2379-18 has a high speed SPI-compatible se-
rial interface that supports 1.8V, 2.5V, 3.3V and 5V logic
while also featuring a daisychain mode. The fast 1.6Msps
throughput with no cycle latency makes the LTC2379-18
ideally suited for a wide variety of high speed applications.
Aninternaloscillatorsetstheconversiontime,easingexter-
nal timing considerations. The LTC2379-18 automatically
powers down between conversions, leading to reduced
power dissipation that scales with the sampling rate.
The LTC2379-18 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
function that maps zero-scale code from 0V to 0.1 VREF
and full-scale code from VREF to 0.9 VREF. For a typical
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.
32k Point FFT fS = 1.6Msps, fIN = 2kHz
APPLICATIONS
n
1.6Msps Throughput Rate
n
±2LSB INL (Max)
n
Guaranteed 18-Bit No Missing Codes
n
Low Power: 18mW at 1.6Msps, 18W at 1.6ksps
n
101.2dB SNR (typ) at fIN = 2kHz
n
–120dB THD (typ) at fIN = 2kHz
n
Digital Gain Compression (DGC)
n
Guaranteed Operation to 125°C
n
2.5V Supply
n
Fully Differential Input Range ±VREF
n
VREF Input Range from 2.5V to 5.1V
n
No Pipeline Delay, No Cycle Latency
n
1.8V to 5V I/O Voltages
n
SPI-Compatible Serial I/O with Daisychain Mode
n
Internal Conversion Clock
n
16-pin MSOP and 4mm
× 3mm DFN Packages
n
Medical Imaging
n
High Speed Data Acquisition
n
Portable or Compact Instrumentation
n
Industrial Process Control
n
Low Power Battery-Operated Instrumentation
n
ATE
FREQUENCY (kHz)
0
100 200 300 400
800
700
600
500
–180
AMPLITUDE
(dBFS)
–60
–40
–20
–80
–100
–120
–140
–160
0
237918 TA02
SNR = 101.2dB
THD = –120dB
SINAD = 101.1dB
SFDR = 121dB
20
VREF
0V
VREF
0V
20
3300pF
–
+
VREF
SAMPLE CLOCK
237918 TA01
10F
0.1F
2.5V
REF
1.8V TO 5V
2.5V TO 5.1V
47F
(X5R, 0805 SIZE)
REF
GND
CHAIN
RDL/SDI
SDO
SCK
BUSY
CNV
REF/DGC
LTC2379-18
VDD
OVDD
IN+
IN–
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.
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| LTC2379CDE-18#TRPBF | 1-CH 18-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO16 |
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參數(shù)描述 |
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| LTC2379IMS-18#PBF | 功能描述:IC ADC 18BIT SPI/SRL 16MSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 其它有關(guān)文件:TSA1204 View All Specifications 標(biāo)準(zhǔn)包裝:1 系列:- 位數(shù):12 采樣率（每秒）:20M 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:2 功率耗散（最大）:155mW 電壓電源:模擬和數(shù)字 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-TQFP 供應(yīng)商設(shè)備封裝:48-TQFP（7x7） 包裝:Digi-Reel® 輸入數(shù)目和類型:4 個(gè)單端，單極；2 個(gè)差分，單極 產(chǎn)品目錄頁(yè)面:1156 (CN2011-ZH PDF) 其它名稱:497-5435-6 |
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| LTC2379IMS-18#TRPBF | 功能描述:IC ADC 18BIT SPI/SRL 16MSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 位數(shù):14 采樣率（每秒）:83k 數(shù)據(jù)接口:串行，并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:95mW 電壓電源:雙 ± 工作溫度:0°C ~ 70°C 安裝類型:通孔 封裝/外殼:28-DIP（0.600"，15.24mm） 供應(yīng)商設(shè)備封裝:28-PDIP 包裝:管件 輸入數(shù)目和類型:1 個(gè)單端，雙極 |
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