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LTC2325IUKG-12#TRPBF

产品描述IC ADC 12BIT 5MSPS 52QFN
产品类别半导体    模拟混合信号IC   
文件大小1MB,共30页
制造商Linear ( ADI )
官网地址http://www.analog.com/cn/index.html
下载文档 详细参数 选型对比 全文预览

LTC2325IUKG-12#TRPBF概述

IC ADC 12BIT 5MSPS 52QFN

LTC2325IUKG-12#TRPBF规格参数

参数名称属性值
位数12
采样率(每秒)5M
输入数4
输入类型差分
数据接口LVDS - 并联,SPI
配置S/H-ADC
无线电 - S/H:ADC1:1
A/D 转换器数4
架构SAR
参考类型外部, 内部
电压 - 电源,模拟3.13 V ~ 3.47 V,5V
电压 - 电源,数字3.13 V ~ 3.47 V,5V
特性同步采样
工作温度-40°C ~ 85°C
封装/外壳52-WFQFN 裸露焊盘
供应商器件封装52-QFN(7x8)

文档预览

下载PDF文档
LTC2325-12
Quad, 12-Bit + Sign, 5Msps/Ch
Simultaneous Sampling ADC
FeaTures
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DescripTion
The
LTC
®
2325-12
is a low noise, high speed quad 12-bit
+ sign successive approximation register (SAR) ADC with
differential inputs and wide input common mode range.
Operating from a single 3.3V or 5V supply, the LTC2325-12
has an 8V
P-P
differential input range, making it ideal for
applications which require a wide dynamic range with
high common mode rejection. The LTC2325-12 achieves
±0.5LSB INL typical, no missing codes at 12 bits and
77dB SNR.
The LTC2325-12 has an onboard low drift (20ppm/°C max)
2.048V or 4.096V temperature-compensated reference.
The LTC2325-12 also has a high speed SPI-compatible
serial interface that supports CMOS or LVDS. The fast
5Msps per channel throughput with one cycle latency
makes the LTC2325-12 ideally suited for a wide variety
of high speed applications. The LTC2325-12 dissipates
only 45mW per channel and offers nap and sleep modes
to reduce the power consumption to 26μW for further
power savings during inactive periods.
L,
LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
ThinSOT is a trademark of Analog Devices, Inc. All other trademarks are the property of their
respective owners.
n
n
n
n
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n
n
5Msps/Ch Throughput Rate
Four Simultaneously Sampling Channels
Guaranteed 12-Bit, No Missing Codes
8V
P-P
Differential Inputs with Wide Input
Common Mode Range
77dB SNR (Typ) at f
IN
= 2.2MHz
–86dB THD (Typ) at f
IN
= 2.2MHz
Guaranteed Operation to 125°C
Single 3.3V or 5V Supply
Low Drift (20ppm/°C Max) 2.048V or 4.096V
Internal Reference
1.8V to 2.5V I/O Voltages
CMOS or LVDS SPI-Compatible Serial I/O
Power Dissipation 45mW/Ch (Typ)
Small 52-Lead (7mm × 8mm) QFN Package
applicaTions
n
n
n
n
High Speed Data Acquisition Systems
Communications
Optical Networking
Multiphase Motor Control
Typical applicaTion
TRUE DIFFERENTIAL INPUTS
NO CONFIGURATION REQUIRED
IN
V
DD
ARBITRARY
+
,
IN
10µF
3.3V OR 5V
V
DD
A
IN1+
S/H
A
IN1–
A
IN2+
S/H
A
IN2–
GND
1µF
1.8V TO 2.5V
32k Point FFT f
SMPL
= 5Msps,
f
IN
= 2.2MHz
SNR = 77.1dB
THD = –85.7dB
–20 SINAD = 76.2dB
SFDR = 90.3dB
–40
–60
–80
–100
–120
–140
0
0.5
1
1.5
FREQUENCY (MHz)
2
2.5
232512 TA01b
0
V
DD
DIFFERENTIAL
GND
O
VDD
12-BIT
+SIGN
SAR ADC
12-BIT
+SIGN
SAR ADC
12-BIT
+SIGN
SAR ADC
12-BIT
+SIGN
SAR ADC
0V
0V
LTC2325-12
V
DD
BIPOLAR
V
DD
UNIPOLAR
A
IN3+
S/H
A
IN3–
A
IN4+
S/H
A
IN4–
REF
FOUR SIMULTANEOUS
SAMPLING CHANNELS
SDO1
SDO2
SDO3
SDO4
CLKOUT
SCK
CNV
SAMPLE
CLOCK
0V
0V
REFOUT1 REFOUT2 REFOUT3 REFOUT4
1µF
10µF
10µF
10µF
10µF
232512 TA01a
AMPLITUDE (dBFS)
CMOS/LVDS
SDR/DDR
REFBUFEN
232512f
For more information
www.linear.com/LTC2325-12
1

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描述 IC ADC 12BIT 5MSPS 52QFN IC ADC 12BIT 5MSPS 52QFN IC ADC 12BIT 5MSPS 52QFN IC ADC 12BIT 5MSPS 52QFN IC ADC 12BIT 5MSPS 52QFN IC ADC 12BIT 5MSPS 52QFN
位数 12 12 12 12 12 12
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