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Linear Technology Electronic Components Datasheet

LTC2242-10 Datasheet

250Msps ADC

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LTC2242-10 pdf
LTC2242-10
10-Bit, 250Msps ADC
FEATURES
wwwn.daStaashmeeptl4eu.cRoamte: 250Msps
n 60.5dB SNR
n 78dB SFDR
n 1.2GHz Full Power Bandwidth S/H
n Single 2.5V Supply
n Low Power Dissipation: 740mW
n LVDS, CMOS, or Demultiplexed CMOS Outputs
n Selectable Input Ranges: ±0.5V or ±1V
n No Missing Codes
n Optional Clock Duty Cycle Stabilizer
n Shutdown and Nap Modes
n Data Ready Output Clock
n 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)*
n 64-Pin 9mm × 9mm QFN Package
APPLICATIONS
n Wireless and Wired Broadband Communication
n Cable Head-End Systems
n Power Amplifier Linearization
n Communications Test Equipment
DESCRIPTION
The LTC®2242-10 is a 250Msps, sampling 10-bit A/D con-
verter designed for digitizing high frequency, wide dynamic
range signals. The LTC2240-10 is perfect for demanding
communications applications with AC performance that
includes 60.5dB SNR and 78dB SFDR. Ultralow jitter of
95fsRMS allows IF undersampling with excellent noise
performance.
DC specs include ±0.4LSB INL (typ), ±0.2LSB 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 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 over a wide range of clock duty cycles.
L, 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 APPLICATION
REFH
REFL
ANALOG
INPUT
FLEXIBLE
REFERENCE
+
INPUT
S/H
CLOCK/DUTY
CYCLE
CONTROL
ENCODE
INPUT
2.5V
VDD
10-BIT
PIPELINED
ADC CORE
CORRECTION
LOGIC
OUTPUT
DRIVERS
0.5V
TO 2.625V
OVDD
D9
• CMOS
• OR
• LVDS
D0
OGND
224210 TA01
SFDR vs Input Frequency
85
80
75
70
65
1V RANGE
60
2V RANGE
55
50
45
40
0 100 200 300 400 500 600 700 800 900 1000
INPUT FREQUENCY (MHz)
224210 G11
224210fc
1


Linear Technology Electronic Components Datasheet

LTC2242-10 Datasheet

250Msps ADC

No Preview Available !

LTC2242-10 pdf
LTC2242-10
ABSOLUTE MAXIMUM RATINGS
OVDD = VDD (Notes 1, 2)
Supply Voltage (VDD) ...............................................2.8V
wwwD.diagtaitsahleOetu4utp.cuomt 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 .............................................1500mW
Operating Temperature Range
LTC2242C-10 ........................................... 0°C to 70°C
LTC2242I-10 ........................................–40°C to 85°C
Storage Temperature Range................... –65°C to 150°C
PIN CONFIGURATION
TOP VIEW
AIN+ 1
AIN+ 2
AIN– 3
AIN– 4
REFHA 5
REFHA 6
REFLB 7
REFLB 8
REFHB 9
REFHB 10
REFLA 11
REFLA 12
VDD 13
VDD 14
VDD 15
GND 16
65
48 D7+/DA4
47 D7/DA3
46 D6+/DA2
45 D6/DA1
44 D5+/DA0
43 D5/DNC
42 OVDD
41 OGND
40 D4+/DNC
39 D4/CLKOUTA
38 D3+/CLKOUTB
37 D3/OFB
36 CLKOUT+/DB9
35 CLKOUT/DB8
34 OVDD
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
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC2242CUP-10#PBF
LTC2242CUP-10#TRPBF LTC2242UP-10
64-Lead (9mm × 9mm) Plastic QFN
0°C to 70°C
LTC2242IUP-10#PBF
LTC2242IUP-10#TRPBF LTC2242UP-10
64-Lead (9mm × 9mm) Plastic QFN
–40°C to 85°C
LEAD BASED FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC2242CUP-10#PBF
LTC2242CUP-10#TR
LTC2242UP-10
64-Lead (9mm × 9mm) Plastic QFN
0°C to 70°C
LTC2242IUP-10#PBF
LTC2242IUP-10#TR
LTC2242UP-10
64-Lead (9mm × 9mm) Plastic QFN
–40°C to 85°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/
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
Resolution (No Missing Codes)
Integral Linearity Error
Differential Linearity Error
Offset Error
Gain Error
CONDITIONS
Differential Analog Input (Note 5)
Differential Analog Input
(Note 6)
External Reference
MIN TYP MAX
10
–1 ±0.4 1
–0.7 ±0.2 0.7
–17 ±5 17
–3.5 ±0.7 3.5
UNITS
Bits
LSB
LSB
mV
%FS
224210fc
2


Part Number LTC2242-10
Description 250Msps ADC
Maker Linear Technology
Total Page 28 Pages
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LTC2242-10 pdf
LTC2242-10 Datasheet PDF
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