参数资料
型号: LTC2364IDE-18#TRPBF
厂商: Linear Technology
文件页数: 1/24页
文件大小: 0K
描述: IC ADC 18BIT 250K 1CH 16DFN
产品培训模块: LTC2369- 18-/16-bit Pseudo-Differential SAR ADC Family Overview
标准包装: 2,500
位数: 18
采样率(每秒): 250k
数据接口: 串行,SPI?
转换器数目: 1
功率耗散(最大): 4.25mW
电压电源: 模拟和数字
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 16-WFDFN 裸露焊盘
供应商设备封装: 16-DFN(4x3)
包装: 带卷 (TR)
输入数目和类型: 1 个伪差分,单极
配用: DC1813A-H-ND - BOARD SAR ADC LTC2364-18
LTC2364-18
1
236418f
18-Bit, 250ksps, Pseudo-
Differential Unipolar SAR
ADC with 97dB SNR
TYPICAL APPLICATION
FEATURES
DESCRIPTION
The LTC2364-18 is a low noise, low power, high speed
18-bit successive approximation register (SAR) ADC.
Operating from a 2.5V supply, the LTC2364-18 has a 0V
to VREF pseudo-differential unipolar input range with VREF
rangingfrom2.5Vto5.1V.TheLTC2364-18consumesonly
3.4mW and achieves ±2.5LSB INL maximum, no missing
codes at 18 bits with 97dB SNR.
The LTC2364-18 has a high speed SPI-compatible se-
rial interface that supports 1.8V, 2.5V, 3.3V and 5V logic
while also featuring a daisy-chain mode. The fast 250ksps
throughput with no cycle latency makes the LTC2364-18
ideally suited for a wide variety of high speed applications.
Aninternaloscillatorsetstheconversiontime,easingexter-
nal timing considerations. The LTC2364-18 automatically
powers down between conversions, leading to reduced
power dissipation that scales with the sampling rate.
32k Point FFT fS = 250ksps, fIN = 2kHz
APPLICATIONS
n
250ksps Throughput Rate
n
±2.5LSB INL (Max)
n
Guaranteed 18-Bit No Missing Codes
n
Low Power: 3.4mW at 250ksps, 3.4W at 250sps
n
97dB SNR (Typ) at fIN = 2kHz
n
–120dB THD (Typ) at fIN = 2kHz
n
Guaranteed Operation to 125°C
n
2.5V Supply
n
Pseudo-Differential Unipolar Input Range: 0V to 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 Daisy-Chain Mode
n
Internal Conversion Clock
n
16-Lead 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
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.
10
VREF
0V
10nF
+
SAMPLE CLOCK
236418 TA01a
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
LTC2364-18
LT6202
VDD
OVDD
IN+
IN
FREQUENCY (kHz)
0
25
50
75
100
125
–180
AMPLITUDE
(dBFS)
–60
–40
–20
–80
–100
–120
–140
–160
0
236418 TA01b
SNR = 97.2dB
THD = –121dB
SINAD = 97.2dB
SFDR = 125dB
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