参数资料
型号: LTC2158IUP-14#PBF
厂商: Linear Technology
文件页数: 1/28页
文件大小: 0K
描述: IC ADC DUAL 14BIT 310M 64-QFN
标准包装: 40
位数: 14
采样率(每秒): 310M
数据接口: 并联,串行,SPI
转换器数目: 2
功率耗散(最大): 873mW
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: 64-WFQFN 裸露焊盘
供应商设备封装: 64-QFN(9x9)
包装: 管件
输入数目和类型: 2 个差分
配用: DC1371A-ND - BOARD USB DATA ACQUISITION HS
1
215814f
LTC2158-14
Typical applicaTion
FeaTures
applicaTions
DescripTion
Dual 14-Bit 310Msps ADC
n
Communications
n
Cellular Basestations
n
Software Defined Radios
n
Medical Imaging
n
High Definition Video
n
Testing and Measurement Instruments
n
68.8dBFS SNR
n
88dB SFDR
n
Low Power: 724mW Total
n
Single 1.8V Supply
n
DDR LVDS Outputs
n
Easy-to-Drive 1.32VP-P Input Range
n
1.25GHz Full Power Bandwidth S/H
n
Optional Clock Duty Cycle Stabilizer
n
Low Power Sleep and Nap Modes
n
Serial SPI Port for Configuration
n
Pin-Compatible 12-Bit Version
n
64-Lead (9mm × 9mm) QFN Package
The LTC2158-14 is a 2-channel simultaneous sampling
310Msps 14-bit A/D converter designed for digitizing high
frequency, wide dynamic range signals. It is perfect for
demanding communications applications with AC per-
formance that includes 68.8dB SNR and 88dB spurious
free dynamic range (SFDR). The 1.25GHz input bandwidth
allows the ADC to undersample high frequencies with
good performance. The latency is only five clock cycles.
DC specs include ±1.2LSB INL (typ), ±0.35LSB DNL (typ)
and no missing codes over temperature. The transition
noise is 2.11LSBRMS.
The digital outputs are double data rate (DDR) LVDS.
The ENC+ and ENCinputs can be driven differentially with
asinewave,PECL,LVDS,TTL,orCMOSinputs.Anoptional
clock duty cycle stabilizer allows high performance at full
speed for a wide range of clock duty cycles.
L
, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
S/H
CORRECTION
LOGIC
OUTPUT
DRIVERS
14-BIT
PIPELINED
ADC CORE
CLOCK/DUTY
CYCLE
CONTROL
DA12_13
DA0_1
DB12_13
DB0_1
CLOCK
ANALOG
INPUT
215814 TA01
DDR
LVDS
DDR
LVDS
VDD
OVDD
OGND
GND
CHANNEL A
S/H
CORRECTION
LOGIC
OUTPUT
DRIVERS
14-BIT
PIPELINED
ADC CORE
ANALOG
INPUT
CHANNEL B
FREQUENCY (MHz)
0
–120
AMPLITUDE
(dBFS)
–100
–80
–60
–40
0
20
40
60
80
215814 TA01b
100
140
120
–20
LTC2158-14 32K Point 2-Tone FFT,
fIN = 71MHz and 69MHz, 310Msps
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