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Linear Technology Electronic Components Datasheet

LTC2246H Datasheet

ADC

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LTC2246H pdf
FEATURES
n Sample Rate: 25Msps
n –40°C to 125°C Operation
n Single 3V Supply (2.8V to 3.5V)
n Low Power: 75mW
n 74.5dB SNR
n 90dB SFDR
n No Missing Codes
n Flexible Input: 1VP-P to 2VP-P Range
n 575MHz Full Power Bandwidth S/H
n Clock Duty Cycle Stabilizer
n Shutdown and Nap Modes
n Pin Compatible Family
LTC2246H (14-Bit), LTC2226H (12-Bit)
n 48-Pin (7mm × 7mm) LQFP Package
APPLICATIONS
n Automotive
n Industrial
n Wireless and Wired Broadband Communication
LTC2246H
14-Bit, 25Msps
125°C ADC In LQFP
DESCRIPTION
The LTC®2246H is a 14-bit 25Msps, low power 3V A/D
converter designed for digitizing high frequency, wide
dynamic range signals. The LTC2246H is perfect for
demanding imaging and communications applications
with AC performance that includes 74.5dB SNR and 90dB
SFDR.
DC specs include ±1LSB INL (typ), ±0.5LSB DNL (typ)
and no missing codes over temperature. The transition
noise is a low 1LSBRMS.
A single 3V supply allows low power operation. A separate
output supply allows the outputs to drive 0.5V to 3.6V
logic.
A single-ended CLK input controls converter operation. 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
REFH
REFL
ANALOG
INPUT
FLEXIBLE
REFERENCE
+
INPUT
S/H
CLOCK/DUTY
CYCLE
CONTROL
CLK
14-BIT
PIPELINED
ADC CORE
CORRECTION
LOGIC
OUTPUT
DRIVERS
OVDD
D13
D0
OGND
2246H TA01
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
0
Typical INL, 2V Range
4096
8192
CODE
12288 16384
2246H TA01b
2246hfb
1


Linear Technology Electronic Components Datasheet

LTC2246H Datasheet

ADC

No Preview Available !

LTC2246H pdf
LTC2246H
ABSOLUTE MAXIMUM RATINGS
OVDD = VDD (Notes 1, 2)
Supply Voltage (VDD) ..................................................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 .............................................1500mW
Operating Temperature Range................ –40°C to 125°C
Storage Temperature Range................... –65°C to 150°C
PACKAGE/ORDER INFORMATION
TOP VIEW
GND 1
AAIINN+–
2
3
GND 4
REFH 5
REFH 6
REFL 7
REFL 8
GND 9
VDD 10
VDD 11
VDD 12
36 GND
35 D10
34 D9
33 D8
32 GND
31 OVDD
30 OGND
29 GND
28 D7
27 D6
26 D5
25 GND
LX PACKAGE
48-LEAD (7mm s 7mm) PLASTIC LQFP
TJMAX = 150°C, θJA = 53°C/W
ORDER INFORMATION
LEAD FREE FINISH
PART MARKING
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC2246HLX#PBF
LTC2246LX
48-Lead (7mm × 7mm) Plastic LQFP
–40°C to 125°C
LEAD BASED FINISH
PART MARKING
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC2246HLX
LTC2246LX
48-Lead (7mm × 7mm) Plastic LQFP
–40°C to 125°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/
This product is only offered in trays. For more information go to: http://www.linear.com/packaging/
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
Resolution
(No Missing Codes)
Integral Linearity Error
Differential Analog Input (Note 5)
l 14
l –6
±1
6
Bits
LSB
Differential Linearity Error
Differential Analog Input
l –1
±0.5
1
LSB
Offset Error
Gain Error
Offset Drift
(Note 6)
External Reference
l –15
l –3
±2
±0.5
±10
15
3
mV
%FS
μV/°C
Full-Scale Drift
Internal Reference
±30 ppm/°C
External Reference
±5 ppm/°C
Transition Noise
SENSE = 1V
1 LSBRMS
2246hfb
2


Part Number LTC2246H
Description ADC
Maker Linear Technology
Total Page 18 Pages
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LTC2246H Datasheet PDF
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