1
21521012fa
LTC2152-12/
LTC2151-12/LTC2150-12
For more information www.linear.com/LTC2152-12
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
Single 12-Bit 250Msps/
210Msps/170Msps ADCs
n
Communications
n
Cellular Basestations
n
Software Defined Radios
n
Medical Imaging
n
High Definition Video
n
Testing and Measurement Instruments
n
68.5dB SNR
n
90dB SFDR
n
Low Power: 347mW/333mW/306mW Total
n
Single 1.8V Supply
n
DDR LVDS Outputs
n
Easy-to-Drive 1.5V
P-P
Input Range
n
1.25GHz Full Power Bandwidth S/H
n
Optional Clock Duty Cycle Stabilizer
n
Low Power Sleep and Nap Modes
n
Serial SPI Port for Configuration
n
Pin-Compatible 14-Bit Versions
n
40-Lead (6mm × 6mm) QFN Package
The LT C
®
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, LT C , LTM , Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
LTC2152-12: 32K Point 2-Tone FFT,
f
IN
= 71MHz and 69MHz, 250Msps
FREQUENCY (MHz)
0
–120
AMPLITUDE (dBFS)
–100
–80
–60
–40
0
20
40 60 80
21521012 TA01b
100 120
–20
S/H
CORRECTION
LOGIC
OUTPUT
DRIVERS
12-BIT
PIPELINED
ADC
CLOCK/DUTY
CYCLE
CONTROL
D10_11
•
•
•
D0_1
CLOCK
ANALOG
INPUT
21521012 TA01a
DDR
LVDS
V
DD
GND
OV
DD
OGND
LTC2152-12/
LTC2151-12/LTC2150-12
2
21521012fa
For more information www.linear.com/LTC2152-12
ABSOLUTE MAXIMUM RATINGS
Supply Voltage
V
DD
, OV
DD
................................................ –0.3V to 2V
Analog Input Voltage
A
IN
+
, A
IN
–
, PAR/SER,
SENSE (Note 3)
........................ –0.3V to (V
DD
+ 0.2V)
Digital Input Voltage
ENC
+
, ENC
–
(Note 3) ................ –0.3V to (V
DD
+ 0.3V)
CS, SDI, SCK (Note 4) ........................... –0.3V to 3.9V
SDO (Note 4) ............................................. –0.3V to 3.9V
Digital Output Voltage ................ –0.3V to (OV
DD
+ 0.3V)
Operating Temperature Range
LTC2
152C
, LTC2151C, LTC2150C ............. 0°C to 70°C
LTC2152I, LTC2151I, LTC2150I ............–40°C to 85°C
Storage Temperature Range .................. –65°C to 150°C
(Notes 1, 2)
PIN CONFIGURATION
3940 38 37 36 35 34 33 32 31
11 20
12 13 14 15
TOP VIEW
GND
41
UJ PACKAGE
40-LEAD (6mm × 6mm) PLASTIC QFN
16 17 18 19
22
23
24
25
26
27
28
29
9
8
7
6
5
4
3
2
V
DD
V
DD
GND
A
IN
+
A
IN
–
GND
SENSE
VREF
VCM
GND
OV
DD
D6_7
+
D6_7
–
CLKOUT
+
CLKOUT
–
D4_5
+
D4_5
–
D2_3
+
D2_3
–
OGND
PAR/SER
CS
SCK
SDI
SDO
GND
D10_11
+
D10_11
–
D8_9
+
D8_9
–
ENC
+
ENC
–
GND
OF
–
OF
+
NC
NC
D0_1
–
D0_1
+
OV
DD
21
30
10
1
T
JMAX
= 150°C, θ
JA
= 33°C/W
EXPOSED PAD (PIN 41) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC2152CUJ-12#PBF LTC2152CUJ-12#TRPBF LTC2152UJ-12 40-Lead (6mm × 6mm) Plastic QFN 0°C to 70°C
LTC2152IUJ-12#PBF LTC2152IUJ-12#TRPBF LTC2152UJ-12 40-Lead (6mm × 6mm) Plastic QFN –40°C to 85°C
LTC2151CUJ-12#PBF LTC2151CUJ-12#TRPBF LTC2151UJ-12 40-Lead (6mm × 6mm) Plastic QFN 0°C to 70°C
LTC2151IUJ-12#PBF LTC2151IUJ-12#TRPBF LTC2151UJ-12 40-Lead (6mm × 6mm) Plastic QFN –40°C to 85°C
LTC2150CUJ-12#PBF LTC2150CUJ-12#TRPBF LTC2150UJ-12 40-Lead (6mm × 6mm) Plastic QFN 0°C to 70°C
LTC2150IUJ-12#PBF LTC2150IUJ-12#TRPBF LTC2150UJ-12 40-Lead (6mm × 6mm) 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.
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/