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Linear Technology Electronic Components Datasheet

LTC2208IUP-14 Datasheet

14-Bit ADC

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LTC2208-14
14-Bit, 130Msps ADC
FEATURES
n Sample Rate: 130Msps
n 77.1dBFS Noise Floor
n 98dB SFDR
n SFDR >81dB at 250MHz (1.5VP-P Input Range)
n PGA Front End (2.25VP-P or 1.5VP-P Input Range)
n 700MHz Full Power Bandwidth S/H
n Optional Internal Dither
n Optional Data Output Randomizer
n LVDS or CMOS Outputs
n Single 3.3V Supply
n Power Dissipation: 1.32W
n Clock Duty Cycle Stabilizer
n Pin Compatible 16-Bit Version
130Msps: LTC2208 (16-Bit)
n 64-Pin (9mm × 9mm) QFN Package
APPLICATIONS
n Telecommunications
n Receivers
n Cellular Base Stations
n Spectrum Analysis
n Imaging Systems
n ATE
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.
DESCRIPTION
The LTC®2208-14 is a 130Msps, sampling 14-bit A/D
converter designed for digitizing high frequency, wide
dynamic range signals with input frequencies up to
700MHz. The input range of the ADC can be optimized
with the PGA front end.
The LTC2208-14 is perfect for demanding communications
applications, with AC performance that includes 77.1dBFS
Noise Floor and 98dB spurious free dynamic range (SFDR).
Ultralow jitter of 70fsRMS allows undersampling of high
input frequencies with excellent noise performance.
Maximum DC specs include ±1.5LSB INL, ±0.5LSB DNL
(no missing codes).
The digital output can be either differential LVDS or
single-ended CMOS. There are two format options for the
CMOS outputs: a single bus running at the full data rate or
demultiplexed buses running at half data rate. A separate
output power supply allows the CMOS output swing to
range from 0.5V to 3.6V.
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 al-
lows high performance at full speed with a wide range of
clock duty cycles.
TYPICAL APPLICATION
3.3V
SENSE
VCM
2.2μF
1.25V
COMMON MODE
BIAS VOLTAGE
INTERNAL ADC
REFERENCE
GENERATOR
OVDD
AIN+
ANALOG
INPUT
AIN
+
S/H
AMP
14-BIT
PIPELINED
ADC CORE
CORRECTION
LOGIC AND
SHIFT REGISTER
OUTPUT
DRIVERS
CLOCK/DUTY
CYCLE
CONTROL
ENC + ENC
OGND
VDD
GND
PGA SHDN DITH MODE LVDS RAND
ADC CONTROL INPUTS
0.5V TO 3.6V
0.1μF
OF
CLKOUT
D13
D0
CMOS
OR
LVDS
0.1μF
0.1μF
3.3V
0.1μF
220814 TA01
32k Point FFT, fIN = 15.11MHz,
–1dB, PGA = 0, RAND “On”,
Dither “OFF”
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
0
10 20 30 40 50 60
FREQUENCY (MHz)
220814 G05
220814fb
1


Linear Technology Electronic Components Datasheet

LTC2208IUP-14 Datasheet

14-Bit ADC

No Preview Available !

LTC2208-14
ABSOLUTE MAXIMUM RATINGS
OVDD = VDD (Notes 1 and 2)
Supply Voltage (VDD)................................... –0.3V to 4V
Digital Output Ground Voltage (OGND)........ –0.3V to 1V
Analog Input Voltage (Note 3) ..... –0.3V to (VDD + 0.3V)
Digital Input Voltage .................... –0.3V to (VDD + 0.3V)
Digital Output Voltage................ –0.3V to (OVDD + 0.3V)
Power Dissipation............................................ 2000mW
Operating Temperature Range
LTC2208C-14 ........................................... 0°C to 70°C
LTC2208I-14 ........................................–40°C to 85°C
Storage Temperature Range ..................–65°C to 150°C
Digital Output Supply Voltage (OVDD).......... –0.3V to 4V
PIN CONFIGURATION
TOP VIEW
SENSE 1
GND 2
VCM 3
GND 4
VDD 5
VDD 6
GND 7
AIN+ 8
AIN– 9
65
GND 10
GND 11
ENC+ 12
ENC13
GND 14
VDD 15
VDD 16
48 D9+/DA4
47 D9/DA3
46 D8+/DA2
45 D8/DA1
44 D7+/DA0
43 D7/DNC
42 D6+/DNC
41 D6/CLKOUTA
40 CLKOUT+/CLKOUTB
39 CLKOUT/OFB
38 D5+_/DB13
37 D5 /DB12
36 D4+/DB11
35 D4/DB10
34 D3+/DB9
33 D3/DB8
UP PACKAGE
64-LEAD (9mm s 9mm) PLASTIC QFN
EXPOSED PAD (PIN 65) IS GND, MUST BE SOLDERED TO PCB BOARD
TJMAX = 150°C, θJA = 20°C/W
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC2208CUP-14#PBF LTC2208CUP-14#TRPBF LTC2208UP-14
64-Lead (9mm × 9mm) Plastic Plastic QFN 0°C to 70°C
LTC2208IUP-14#PBF LTC2208IUP-14#TRPBF LTC2208UP-14
64-Lead (9mm × 9mm) Plastic 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/
CONVERTER CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 4)
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
Integral Linearity Error
Differential Analog Input (Note 5)
l
±1
±1.5
LSB
Differential Linearity Error
Differential Analog Input
l
±0.2 ±0.5
LSB
Offset Error
(Note 6)
l
±2 ±10.8
mV
Offset Drift
±10
μV/°C
Gain Error
External Reference
l
±0.2 ±2.3
%FS
Full-Scale Drift
Internal Reference
External Reference
±30
ppm/°C
±15
ppm/°C
Transition Noise
External Reference
0.8
LSBRMS
220814fb
2


Part Number LTC2208IUP-14
Description 14-Bit ADC
Maker Linear
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