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Linear Technology Electronic Components Datasheet

LTC2259CUJ-14 Datasheet

Ultralow Power 1.8V ADCs

No Preview Available !

Features
n 73.4dB SNR
n 85dB SFDR
n Low Power: 127mW/106mW/89mW
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
Applications
n Communications
n Cellular Base Stations
n Software Defined Radios
n Portable Medical Imaging
n Multi-Channel Data Acquisition
n Nondestructive Testing
LTC2261-14
LTC2260-14/LTC2259-14
14-Bit, 125/105/80Msps
Ultralow Power 1.8V ADCs
Description
The LTC®2261-14/LTC2260-14/LTC2259-14 are sam-
pling 14-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 73.4dB SNR and 85dB spurious
free dynamic range (SFDR). Ultralow jitter of 0.17psRMS
allows undersampling of IF frequencies with excellent
noise performance.
DC specs include ±1LSB INL (typical), ±0.3LSB DNL (typi-
cal) and no missing codes over temperature. The transition
noise is a low 1.2LSBRMS.
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.
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
ANALOG
INPUT
+
INPUT
S/H
1.8V
VDD
14-BIT
PIPELINED
ADC CORE
CORRECTION
LOGIC
CLOCK/DUTY
CYCLE
CONTROL
GND
125MHz
CLOCK
OUTPUT
DRIVERS
1.2V
TO 1.8V
OVDD
D13
CMOS
OR
LVDS
D0
OGND
226114 TA01a
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)
226114 TA01b
For more information www.linear.com/LTC2261-14
226114fc
1


Linear Technology Electronic Components Datasheet

LTC2259CUJ-14 Datasheet

Ultralow Power 1.8V ADCs

No Preview Available !

LTC2261-14
LTC2260-14/LTC2259-14
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:
LTC2261C, LTC2260C, LTC2259C............. 0°C to 70°C
LTC2261I, LTC2260I, LTC2259I............–40°C to 85°C
Storage Temperature Range................... –65°C to 150°C
Pin Configurations
FULL-RATE CMOS OUTPUT MODE
TOP VIEW
DOUBLE DATA RATE CMOS OUTPUT MODE
TOP VIEW
AIN+ 1
AIN– 2
GND 3
REFH 4
40 39 38 37 36 35 34 33 32 31
30 D9
29 D8
28 CLKOUT+
27 CLKOUT
REFH 5
REFL 6
41
26 OVDD
GND
25 OGND
REFL 7
24 D7
PAR/SER 8
23 D6
VDD 9
VDD 10
22 D5
21 D4
11 12 13 14 15 16 17 18 19 20
AIN+ 1
AIN– 2
GND 3
REFH 4
40 39 38 37 36 35 34 33 32 31
30 D8_9
29 DNC
28 CLKOUT+
27 CLKOUT
REFH 5
REFL 6
41
26 OVDD
GND
25 OGND
REFL 7
24 D6_7
PAR/SER 8
23 DNC
VDD 9
VDD 10
22 D4_5
21 DNC
11 12 13 14 15 16 17 18 19 20
UJ PACKAGE
40-LEAD (6mm × 6mm) PLASTIC QFN
TJMAX = 150°C, θJA = 32°C/W
EXPOSED PAD (PIN 41) IS GND, MUST BE SOLDERED TO PCB
UJ PACKAGE
40-LEAD (6mm × 6mm) PLASTIC QFN
TJMAX = 150°C, θJA = 32°C/W
EXPOSED PAD (PIN 41) IS GND, MUST BE SOLDERED TO PCB
DOUBLE DATA RATE LVDS OUTPUT MODE
TOP VIEW
2
AIN+ 1
AIN– 2
GND 3
REFH 4
40 39 38 37 36 35 34 33 32 31
30 D8_9+
29 D8_9
28 CLKOUT+
27 CLKOUT
REFH 5
REFL 6
41
26 OVDD
GND
25 OGND
REFL 7
24 D6_7+
PAR/SER 8
23 D6_7
VDD 9
VDD 10
22 D4_5+
21 D4_5
11 12 13 14 15 16 17 18 19 20
UJ PACKAGE
40-LEAD (6mm × 6mm) PLASTIC QFN
TJMAX = 150°C, θJA = 32°C/W
EXPOSED PAD (PIN 41) IS GND, MUST BE SOLDERED TO PCB
For more information www.linear.com/LTC2261-14
226114fc


Part Number LTC2259CUJ-14
Description Ultralow Power 1.8V ADCs
Maker Linear Technology
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LTC2259CUJ-14 Datasheet PDF






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