参数资料
型号: DC1369A-G
厂商: Linear Technology
文件页数: 1/34页
文件大小: 0K
描述: BOARD DEMO 125MSPS LTC2261-12
软件下载: QuikEval II System
设计资源: DC1369A Design Files
标准包装: 1
系列: *
相关产品: DC890B-ND - BOARD USB DATA COLLECTION
LTC2261-12
LTC2260-12/LTC2259-12
1
226112fc
For more information www.linear.com/LTC2261-12
Typical applicaTion
FeaTures
applicaTions
DescripTion
12-Bit, 125/105/80Msps
Ultralow Power 1.8V ADCs
n
Communications
n
Cellular Base Stations
n
Software Defined Radios
n
Portable Medical Imaging
n
Multi-Channel Data Acquisition
n
Nondestructive Testing
n
70.8dB SNR
n
85dB SFDR
n
Low Power: 124mW/103mW/87mW
n
Single 1.8V Supply
n
CMOS, DDR CMOS or DDR LVDS Outputs
n
Selectable Input Ranges: 1VP-P to 2VP-P
n
800MHz Full-Power Bandwidth S/H
n
Optional Data Output Randomizer
n
Optional Clock Duty Cycle Stabilizer
n
Shutdown and Nap Modes
n
Serial SPI Port for Configuration
n
Pin Compatible 14-Bit and 12-Bit Versions
n
40-Pin (6mm
× 6mm) QFN Package
pling 12-bit A/D converters designed for digitizing high
frequency, wide dynamic range signals. They are perfect
for demanding communications applications with AC
performancethatincludes70.8dBSNRand85dBspurious
free dynamic range (SFDR). Ultralow jitter of 0.17psRMS
allows undersampling of IF frequencies with excellent
noise performance.
DC specs include ±0.3LSB INL (typical), ±0.1LSB DNL
(typical) and no missing codes over temperature. The
transition noise is a low 0.3LSBRMS.
The digital outputs can be either full-rate CMOS, double-
data rate CMOS, or double-data rate LVDS. A separate
output power supply allows the CMOS output swing to
range from 1.2V to 1.8V.
The ENC+ and ENCinputs may be driven differentially or
single ended with a sine wave, PECL, LVDS, TTL or CMOS
inputs. An optional clock duty cycle stabilizer allows high
performance at full speed for a wide range of clock duty
cycles.
2-Tone FFT, fIN = 70MHz and 75MHz
+
INPUT
S/H
CORRECTION
LOGIC
OUTPUT
DRIVERS
12-BIT
PIPELINED
ADC CORE
CLOCK/DUTY
CYCLE
CONTROL
D11
D0
125MHz
CLOCK
ANALOG
INPUT
226112 TA01a
CMOS
OR
LVDS
1.2V
TO 1.8V
1.8V
VDD
OVDD
OGND
GND
FREQUENCY (MHz)
0
–100
–110
–120
–70
–60
–80
–90
AMPLITUDE
(dBFS) –50
–30
–40
–20
–10
0
10
20
30
40
50
60
226112 TA01b
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.
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