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LTC2320HUKG-14#PBF

产品描述14 位模数转换器 8 输入 4 SAR 52-QFN(7x8)
产品类别半导体    数据采集ADC/DAC – 专业   
文件大小2MB,共34页
制造商ADI(亚德诺半导体)
官网地址https://www.analog.com
标准
下载文档 详细参数 全文预览

LTC2320HUKG-14#PBF概述

14 位模数转换器 8 输入 4 SAR 52-QFN(7x8)

LTC2320HUKG-14#PBF规格参数

参数名称属性值
类别
厂商名称ADI(亚德诺半导体)
包装管件
位数14
采样率(每秒)1.5M
输入数8
输入类型差分
数据接口LVDS - 并联,SPI
配置S/H-MUX-ADC
比率 - S/H:ADC2:1
A/D 转换器数4
架构SAR
参考类型外部,内部
电压 - 供电,模拟3.13V ~ 3.47V,5V
电压 - 供电,数字3.13V ~ 3.47V,5V
特性同步采样
工作温度-40°C ~ 125°C
封装/外壳52-WFQFN 裸露焊盘
供应商器件封装52-QFN(7x8)
安装类型表面贴装型
基本产品编号LTC2320

文档预览

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FEATURES
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LTC2320-14
Octal, 14-Bit + Sign,
1.5Msps/Ch Simultaneous
Sampling ADC
DESCRIPTION
The
LTC
®
2320-14
is a low noise, high speed octal 14-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 LTC2320-
14 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 LTC2320-14 achieves
±1LSB INL typical, no missing codes at 14 bits and 81dB
SNR.
The LTC2320-14 has an onboard low drift (20ppm/°C
max) 2.048V or 4.096V temperature-compensated
reference. The LTC2320-14 also has a high speed SPI-
compatible serial interface that supports CMOS or LVDS.
The fast 1.5Msps per channel throughput with no latency
makes the LTC2320-14 ideally suited for a wide variety
of high speed applications. The LTC2320-14 dissipates
only 20mW per channel and offers nap and sleep modes
to reduce the power consumption to 26μW for further
power savings during inactive periods.
All registered trademarks and trademarks are the property of their respective owners.
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1.5Msps/Ch Throughput Rate
Eight Simultaneously Sampling Channels
Guaranteed 14-Bit, No Missing Codes
8V
P-P
Differential Inputs with Wide Input
Common Mode Range
81dB SNR (Typ) at f
IN
= 500kHz
–90dB THD (Typ) at f
IN
= 500kHz
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 20mW/Ch (Typ)
Small 52-Lead (7mm × 8mm) QFN Package
APPLICATIONS
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High Speed Data Acquisition Systems
Communications
Optical Networking
Multiphase Motor Control
TYPICAL APPLICATION
10µF
3.3V OR 5V
TRUE DIFFERENTIAL INPUTS
NO CONFIGURATION REQUIRED
IN
+
,
IN
ARBITRARY
DIFFERENTIAL
A
IN1+
S/H
A
IN1–
A
IN2+
S/H
A
IN2–
A
IN3+
S/H
A
IN3–
A
IN4+
S/H
A
IN4–
A
IN5+
S/H
A
IN5–
A
IN6+
S/H
A
IN6–
A
IN7+
S/H
A
IN7–
A
IN8+
S/H
A
IN8–
REF
EIGHT SIMULTANEOUS
SAMPLING CHANNELS
1µF
V
DD
MUX
GND
GND
OV
DD
1µF
1.8V TO 2.5V
14-BIT
+ SIGN
SAR ADC
CMOS/LVDS
SDR/DDR
REFBUFEN
32k Point FFT f
SMPL
= 1.5Msps,
f
IN
= 500kHz
SNR = 81.1dB
THD = –90.2dB
–20 SINAD = 80.8dB
SFDR = 94.7dB
–40
–60
–80
–100
–120
–140
0
0.1
0.2 0.3 0.4 0.5
FREQUENCY (MHz)
0.6
0
SMPL
IN
V
DD
V
DD
0V
0V
LTC2320-14
MUX
14-BIT
+ SIGN
SAR ADC
V
DD
BIPOLAR
V
DD
UNIPOLAR
CNV
14-BIT
+ SIGN
SAR ADC
SAMPLE
CLOCK
0V
0V
MUX
AMPLITUDE (dBFS)
MUX
14-BIT
+ SIGN
SAR ADC
SDO1
SDO2
SDO3
SDO4
SDO5
SDO6
SDO7
SDO8
CLKOUT
SCK
REFOUT1 REFOUT2 REFOUT3 REFOUT4
232014 TA01a
0.7
10µF
10µF
10µF
10µF
232014 TA01b
232014fa
For more information
www.linear.com/LTC2320-14
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