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Linear Technology LTC2142-14: 14-bit 65Msps Dual ADC, DDR LVDS Outputs, 5-140MHz, req DC890, LVDS_XFMR and DC1075 DC1620 DC1620A-J Data Sheet

Product codes
DC1620A-J
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Page of 38
LTC2142-14/
LTC2141-14/LTC2140-14
38
21421014fa
Linear Technology  Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417 
(408) 432-1900 
●
 FAX: (408) 434-0507 
 ● 
 www.linear.com
© LINEAR TECHNOLOGY CORPORATION 2011
LT 0712 REV A • PRINTED IN USA
 RELATED PARTS
PART NUMBER
DESCRIPTION
COMMENTS
ADCs
LTC2259-14/LTC2260-14/
LTC2261-14
14-Bit, 80Msps/105Msps/125Msps 
1.8V ADCs, Ultralow Power
89mW/106mW/127mW, 73.4dB SNR, 85dB SFDR, DDR LVDS/DDR CMOS/CMOS 
Outputs, 6mm × 6mm QFN-40
LTC2262-14
14-Bit, 150Msps 1.8V ADC, Ultralow 
Power
149mW, 72.8dB SNR, 88dB SFDR, DDR LVDS/DDR CMOS/CMOS Outputs, 
6mm × 6mm QFN-40
LTC2266-14/LTC2267-14/
LTC2268-14
14-Bit, 80Msps/105Msps/125Msps 
1.8V Dual ADCs, Ultralow Power
216mW/250mW/293mW, 73.4dB SNR, 85dB SFDR, Serial LVDS Outputs, 
6mm × 6mm QFN-40
LTC2266-12/LTC2267-12/
LTC2268-12
12-Bit, 80Msps/105Msps/125Msps 
1.8V Dual ADCs, Ultralow Power
216mW/250mW/293mW, 70.5dB SNR, 85dB SFDR, Serial LVDS Outputs, 
6mm × 6mm QFN-40
RF Mixers/Demodulators
LTC5517
40MHz to 900MHz Direct Conversion 
Quadrature Demodulator
High IIP3: 21dBm at 800MHz, Integrated LO Quadrature Generator
LTC5557
400MHz to 3.8GHz High Linearity 
Downconverting Mixer
23.7dBm IIP3 at 2.6GHz, 23.5dBm IIP3 at 3.5GHz, NF = 13.2dB, 3.3V Supply 
Operation, Integrated Transformer
LTC5575
800MHz to 2.7GHz Direct Conversion 
Quadrature Demodulator
High IIP3: 28dBm at 900MHz, Integrated LO Quadrature Generator, Integrated RF 
and LO Transformer
Amplifiers/Filters
LTC6412
800MHz, 31dB Range, Analog-Controlled 
Variable Gain Amplifier
Continuously Adjustable Gain Control, 35dBm OIP3 at 240MHz, 10dB Noise Figure, 
4mm × 4mm QFN-24
LTC6605-7/LTC6605-10/
LTC6605-14
Dual Matched 7MHz/10MHz/14MHz 
Filters with ADC Drivers
Dual Matched 2nd Order Lowpass Filters with Differential Drivers, 
Pin-Programmable Gain, 6mm × 3mm DFN-22
Signal Chain Receivers
LTM9002
14-Bit Dual Channel IF/Baseband 
Receiver Subsystem
Integrated High Speed ADC, Passive Filters and Fixed Gain Differential Amplifiers
TYPICAL APPLICATIONS
CMOS,
DDR CMOS,
OR
DDR LVDS
OUTPUTS
1.8V
V
DD
1.8V
OV
DD
CLOCK
CONTROL
D1_13
D1_0
21421014 TA03a
CH 1
ANALOG
INPUT
OUTPUT
DRIVERS
t
t
t
GND
OGND
S/H
14-BIT
ADC CORE
CH 2
ANALOG
INPUT
S/H
14-BIT
ADC CORE
D2_13
D2_0
t
t
t
65MHz
CLOCK
FREQUENCY (MHz)
–100
–110
–120
–70
–60
–80
–90
AMPLITUDE (dBFS)
–50
–30
–40
–20
–10
0
21421014 TA03b
0
5
10
15
20
25
30
2-Tone FFT, f
IN
 = 70MHz and 69MHz