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Linear Technology Electronic Components Datasheet

LTC2174IUKG-14 Datasheet

Low Power Quad ADC

No Preview Available !

LTC2175-14/
LTC2174-14/LTC2173-14
14-Bit, 125Msps/105Msps/
80Msps Low Power Quad ADCs
Features
Description
n 4-Channel Simultaneous Sampling ADC
n 73.1dB SNR
n 88dB SFDR
n Low Power: 558mW/450mW/376mW Total,
140mW/113mW/94mW per Channel
n Single 1.8V Supply
n Serial LVDS Outputs: 1 or 2 Bits per Channel
n Selectable Input Ranges: 1VP-P to 2VP-P
n 800MHz Full Power Bandwidth S/H
n Shutdown and Nap Modes
n Serial SPI Port for Configuration
n Pin Compatible 14-Bit and 12-Bit Versions
n 52-Pin (7mm × 8mm) QFN Package
Applications
n Communications
n Cellular Base Stations
n Software Defined Radios
n Portable Medical Imaging
n Multichannel Data Acquisition
n Nondestructive Testing
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.
The LTC®2175-14/LTC2174-14/LTC2173-14 are 4-channel,
simultaneous sampling 14-bit A/D converters designed
for digitizing high frequency, wide dynamic range signals.
They are perfect for demanding communications applica-
tions with AC performance that includes 73.1dB SNR and
88dB spurious free dynamic range (SFDR). Ultralow jitter
of 0.15psRMS allows undersampling of IF frequencies with
excellent noise performance.
DC specs include ±1LSB INL (typ), ±0.3LSB DNL (typ)
and no missing codes over temperature. The transition
noise is a low 1.2LSBRMS.
The digital outputs are serial LVDS to minimize the num-
ber of data lines. Each channel outputs two bits at a time
(2-lane mode). At lower sampling rates there is a one bit
per channel option (1-lane mode). The LVDS drivers have
optional internal termination and adjustable output levels
to ensure clean signal integrity.
The ENC+ and ENCinputs may be driven differentially
or single-ended with a sine wave, PECL, LVDS, TTL, or
CMOS inputs. An internal clock duty cycle stabilizer al-
lows high performance at full speed for a wide range of
clock duty cycles.
Typical Application
CHANNEL 1
ANALOG
S/H
INPUT
1.8V
VDD
14-BIT
ADC CORE
1.8V
OVDD
CHANNEL 2
ANALOG
S/H
INPUT
CHANNEL 3
ANALOG
S/H
INPUT
14-BIT
ADC CORE
14-BIT
ADC CORE
DATA
SERIALIZER
CHANNEL 4
ANALOG
S/H
INPUT
14-BIT
ADC CORE
ENCODE
INPUT
PLL
GND
OGND
OUT1A
OUT1B
OUT2A
OUT2B
OUT3A
OUT3B
OUT4A
OUT4B
DATA
CLOCK
OUT
FRAME
SERIALIZED
LVDS
OUTPUTS
217514 TA01
LTC2175-14, 125Msps,
2-Tone FFT, fIN = 70MHz and 75MHz
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
0 10 20 30 40 50 60
FREQUENCY (MHz)
217514 TA01b
21754314fa
1


Linear Technology Electronic Components Datasheet

LTC2174IUKG-14 Datasheet

Low Power Quad ADC

No Preview Available !

LTC2175-14/
LTC2174-14/LTC2173-14
Absolute Maximum Ratings
(Notes 1, 2)
Supply Voltages
VDD, OVDD................................................. –0.3V to 2V
Analog Input Voltage (AIN+, AIN–,
PAR/SER, SENSE) (Note 3)........... –0.3V to (VDD + 0.2V)
Digital Input Voltage (ENC+, ENC, CS,
SDI, SCK) (Note 4)..................................... –0.3V to 3.9V
SDO (Note 4).............................................. –0.3V to 3.9V
Digital Output Voltage................. –0.3V to (OVDD + 0.3V)
Operating Temperature Range
LTC2175C, 2174C, 2173C.......................... 0°C to 70°C
LTC2175I, 2174I, 2173I.........................–40°C to 85°C
Storage Temperature Range................... –65°C to 150°C
Pin ConfigurationS
TOP VIEW
52 51 50 49 48 47 46 45 44 43 42 41
AIN1+ 1
40 OUT2A+
AIN1– 2
39 OUT2A
VCM12 3
38 OUT2B+
AIN2+ 4
37 OUT2B
AIN2– 5
36 DCO+
REFH 6
35 DCO
REFH 7
53
34 OVDD
REFL 8
GND
33 OGND
REFL 9
32 FR+
AIN3+ 10
AIN3– 11
VCM34 12
AIN4+ 13
AIN4– 14
31 FR
30 OUT3A+
29 OUT3A
28 OUT3B+
27 OUT3B
15 16 17 18 19 20 21 22 23 24 25 26
UKG PACKAGE
52-LEAD (7mm × 8mm) PLASTIC QFN
TJMAX = 150°C, θJA = 28°C/W
EXPOSED PAD (PIN 53) IS GND, MUST BE SOLDERED TO PCB
Order Information
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC2175CUKG-14#PBF LTC2175CUKG-14#TRPBF LTC2175UKG-14
52-Lead (7mm × 8mm) Plastic QFN
0°C to 70°C
LTC2175IUKG-14#PBF LTC2175IUKG-14#TRPBF LTC2175UKG-14
52-Lead (7mm × 8mm) Plastic QFN
–40°C to 85°C
LTC2174CUKG-14#PBF LTC2174CUKG-14#TRPBF LTC2174UKG-14
52-Lead (7mm × 8mm) Plastic QFN
0°C to 70°C
LTC2174IUKG-14#PBF LTC2174IUKG-14#TRPBF LTC2174UKG-14
52-Lead (7mm × 8mm) Plastic QFN
–40°C to 85°C
LTC2173CUKG-14#PBF LTC2173CUKG-14#TRPBF LTC2173UKG-14
52-Lead (7mm × 8mm) Plastic QFN
0°C to 70°C
LTC2173IUKG-14#PBF LTC2173IUKG-14#TRPBF LTC2173UKG-14
52-Lead (7mm × 8mm) Plastic QFN
–40°C to 85°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based finish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
2
21754314fa


Part Number LTC2174IUKG-14
Description Low Power Quad ADC
Maker Linear
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LTC2174IUKG-14 Datasheet PDF






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