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LTC2284
1
2284fa
INPUT FREQUENCY (MHz)
0
65
SNR
(dBFS)
66
68
69
70
75
72
100
200
250
2284 TA01b
67
73
74
71
50
150
300
350
–
+
INPUT
S/H
ANALOG
INPUT A
ANALOG
INPUT B
CLK A
CLK B
14-BIT
PIPELINED
ADC CORE
CLOCK/DUTY CYCLE
CONTROL
OUTPUT
DRIVERS
OVDD
OGND
MUX
D13A
D0A
OVDD
OGND
2284 TA01
D13B
D0B
–
+
OUTPUT
DRIVERS
INPUT
S/H
14-BIT
PIPELINED
ADC CORE
CLOCK/DUTY CYCLE
CONTROL
FEATURES
DESCRIPTIO
U
APPLICATIO S
U
TYPICAL APPLICATIO
U
■ Integrated Dual 14-Bit ADCs
■ Sample Rate: 105Msps
■ Single 3V Supply (2.85V to 3.4V)
■ Low Power: 540mW
■ 72.4dB SNR, 88dB SFDR
■ 110dB Channel Isolation at 100MHz
■ Flexible Input: 1VP-P to 2VP-P Range
■ 575MHz Full Power Bandwidth S/H
■ Clock Duty Cycle Stabilizer
■ Shutdown and Nap Modes
■ Pin Compatible Family
105Msps: LTC2282 (12-Bit), LTC2284 (14-Bit)
80Msps: LTC2294 (12-Bit), LTC2299 (14-Bit)
65Msps: LTC2293 (12-Bit), LTC2298 (14-Bit)
40Msps: LTC2292 (12-Bit), LTC2297 (14-Bit)
25Msps: LTC2291 (12-Bit), LTC2296 (14-Bit)
10Msps: LTC2290 (12-Bit), LTC2295 (14-Bit)
■ 64-Pin (9mm
× 9mm) QFN Package
Dual 14-Bit, 105Msps
Low Power 3V ADC
The LTC
2284 is a 14-bit 105Msps, low power dual 3V
A/D converter designed for digitizing high frequency, wide
dynamic range signals. The LTC2284 is perfect for
demanding imaging and communications applications
with AC performance that includes 72.4dB SNR and 85dB
SFDR for signals at the Nyquist frequency.
Typical DC specs include
±1.5LSB INL, ±0.6LSB DNL. The
transition noise is a low 1.3LSBRMS.
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 perfor-
mance at full speed for a wide range of clock duty cycles.
SNR vs Input Frequency,
–1dB, 2V Range
■ Wireless and Wired Broadband Communication
■ Imaging Systems
■ Spectral Analysis
■ Portable Instrumentation
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
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