LTC2150-12_15 Datasheet, PDF (1/30 Pages) Linear Technology – Single 12-Bit 250Msps/ 210Msps/170Msps ADCs

FEATURES
nn _{68.5dB SNR}
nn _{90dB SFDR}
nn _{Low Power: 347mW/333mW/306mW Total}
nn _{Single 1.8V Supply}
nn _{DDR LVDS Outputs}
nn _{Easy-to-Drive 1.5VP-P Input Range}
nn _{1.25GHz Full Power Bandwidth S/H}
nn _{Optional Clock Duty Cycle Stabilizer}
nn _{Low Power Sleep and Nap Modes}
nn _{Serial SPI Port for Configuration}
nn _{Pin-Compatible 14-Bit Versions}
nn _{40-Lead (6mm × 6mm) QFN Package}
APPLICATIONS
nn _{Communications}
nn _{Cellular Basestations}
nn _{Software Defined Radios}
nn _{Medical Imaging}
nn _{High Definition Video}
nn _{Testing and Measurement Instruments}
LTC2152-12/
LTC2151-12/LTC2150-12
Single 12-Bit 250Msps/
210Msps/170Msps ADCs
DESCRIPTION
The LTC^®2152-12/LTC2151-12/LTC2150-12 are a family
of 250Msps/210Msps/170Msps 12-bit A/D converters
designed for digitizing high frequency, wide dynamic range
signals. They are perfect for demanding communications
applications with AC performance that includes 68.5dB
SNR and 90dB spurious free dynamic range (SFDR). The
1.25GHz input bandwidth allows the ADC to undersample
high input frequencies with good performance. The latency
is only six clock cycles.
DC specs include ±0.26LSB INL (typ), ±0.16LSB DNL (typ)
and no missing codes over temperature. The transition
noise is 0.54LSB_RMS.
The digital outputs are double-data rate (DDR) LVDS.
The ENC⁺ and ENC^– inputs can be driven differentially 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.
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.
TYPICAL APPLICATION
V_DD
ANALOG
INPUT
S/H
12-BIT
PIPELINED
ADC
CORRECTION
LOGIC
CLOCK
CLOCK/DUTY
CYCLE
CONTROL
GND
OUTPUT
DRIVERS
OV_DD
D10_11
•
•
•
D0_1
DDR
LVDS
OGND
21521012 TA01a
LTC2152-12: 32K Point 2-Tone FFT,
f_IN = 71MHz and 69MHz, 250Msps
0
–20
–40
–60
–80
–100
–120
0
20 40 60 80 100 120
FREQUENCY (MHz)
21521012 TA01b
For more information www.linear.com/LTC2152-12
21521012fa
1