LTC2241-12 반도체 회로 부품 판매점
210Msps ADC
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 Linear Technology |
LTC2241-12
12-Bit, 210Msps ADC
FEATURES
www■.daStaashmeeptl4eu.cRoamte: 210Msps
■ 65.5dB SNR
■ 78dB SFDR
■ 1.2GHz Full Power Bandwidth S/H
■ Single 2.5V Supply
■ Low Power Dissipation: 585mW
■ LVDS, CMOS, or Demultiplexed CMOS Outputs
■ Selectable Input Ranges: ±0.5V or ±1V
■ No Missing Codes
■ Optional Clock Duty Cycle Stabilizer
■ Shutdown and Nap Modes
■ Data Ready Output Clock
■ Pin Compatible Family
250Msps: LTC2242-12 (12-Bit), LTC2242-10 (10-Bit)
210Msps: LTC2241-12 (12-Bit), LTC2241-10 (10-Bit)
170Msps: LTC2240-12 (12-Bit), LTC2240-10 (10-Bit)
185Msps: LTC2220-1 (12-Bit)*
170Msps: LTC2220 (12-Bit), LTC2230 (10-Bit)*
135Msps: LTC2221 (12-Bit), LTC2231 (10-Bit)*
■ 64-Pin 9mm × 9mm QFN Package
U
APPLICATIO S
■ Wireless and Wired Broadband Communication
■ Cable Head-End Systems
■ Power Amplifier Linearization
■ Communications Test Equipment
DESCRIPTIO
The LTC®2241-12 is a 210Msps, sampling 12-bit A/D
converter designed for digitizing high frequency, wide
dynamic range signals. The LTC2241-12 is perfect for
demanding communications applications with AC perfor-
mance that includes 65.5dB SNR and 78dB SFDR. Ultralow
jitter of 95fsRMS allows IF undersampling with excellent
noise performance.
DC specs include ±0.7LSB INL (typ), ±0.4LSB DNL (typ)
and no missing codes over temperature.
The digital outputs can be either differential LVDS, or
single-ended CMOS. There are three format options for
the CMOS outputs: a single bus running at the full data rate
or two demultiplexed buses running at half data rate with
either interleaved or simultaneous update. A separate
output power supply allows the CMOS output swing to
range from 0.5V to 2.625V.
The ENC+ and ENC– inputs 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 over a wide range of clock duty cycles.
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
*LTC2220-1, LTC2220, LTC2221, LTC2230, LTC2231 are 3.3V parts.
TYPICAL APPLICATIO
REFH
REFL
FLEXIBLE
REFERENCE
2.5V
VDD
ANALOG
INPUT
+
INPUT
S/H
–
12-BIT
PIPELINED
ADC CORE
CORRECTION
LOGIC
CLOCK/DUTY
CYCLE
CONTROL
ENCODE
INPUT
OUTPUT
DRIVERS
0.5V
TO 2.625V
OVDD
D11
• CMOS
• OR
• LVDS
D0
OGND
224112 TA01
SFDR vs Input Frequency
85
80
75
70
65
60
1V RANGE
55
50
2V RANGE
45
40
0 100 200 300 400 500 600 700 800 900 1000
INPUT FREQUENCY (MHz)
224112 G11
224112fa
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LTC2241-12
ABSOLUTE AXI U RATI GS OVDD = VDD (Notes 1, 2)
Supply Voltage (VDD) .............................................. 2.8V
Digital Output Ground Voltage (OGND) ....... –0.3V to 1V
w wAwna.lodgaIntpautsVholteageet(N4 oute. 3c) o...m.. –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 ............................................ 1500mW
Operating Temperature Range
LTC2241C-12 .......................................... 0°C to 70°C
LTC2241I-12 .......................................–40°C to 85°C
Storage Temperature Range ..................–65°C to 150°C
PI CO FIGURATIO
TOP VIEW
AIN+ 1
AIN+ 2
AIN– 3
AIN– 4
REFHA 5
REFHA 6
48 D9+/DA6
47 D9–/DA5
46 D8+/DA4
45 D8–/DA3
44 D7 +/DA2
43 D7 –/DA1
REFLB 7
42 OVDD
REFLB 8 65 41 OGND
REFHB 9
40 D6+/DA0
REFHB 10
39 D6–/CLKOUTA
REFLA 11
38 D5+/CLKOUTB
REFLA 12
37 D5–/OFB
VDD 13
VDD 14
36 CLKOUT +/DB11
35 CLKOUT –/DB10
VDD 15
34 OVDD
GND 16
33 OGND
UP PACKAGE
64-LEAD (9mm × 9mm) PLASTIC QFN
EXPOSED PAD (PIN 65) IS GND, MUST BE SOLDERED TO PCB
TJMAX = 150°C, θJA = 20°C/W
UW U
ORDER I FOR ATIO
LEAD FREE FINISH
LTC2241CUP-12#PBF
LTC2241IUP-12#PBF
LEAD BASED FINISH
LTC2241CUP-12
LTC2241IUP-12
TAPE AND REEL
LTC2241CUP-12#TRPBF
LTC2241IUP-12#TRPBF
TAPE AND REEL
LTC2241CUP-12#TR
LTC2241IUP-12#TR
PART MARKING*
LTC2241UP-12
LTC2241UP-12
PART MARKING*
LTC2241UP-12
LTC2241UP-12
PACKAGE DESCRIPTION
64-Lead (9mm × 9mm) Plastic QFN
64-Lead (9mm × 9mm) Plastic QFN
PACKAGE DESCRIPTION
64-Lead (9mm × 9mm) Plastic QFN
64-Lead (9mm × 9mm) Plastic QFN
TEMPERATURE RANGE
0°C to 70°C
–40°C to 125°C
TEMPERATURE RANGE
0°C to 70°C
–40°C to 125°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *Temperature grades are 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/
224112fa
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( linear )
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