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LTC2202 Datasheet(PDF) 1 Page - Linear Technology

Part # LTC2202
Description  16-Bit, 20Msps Serial Low Noise Dual ADC
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC2202 Datasheet(HTML) 1 Page - Linear Technology

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1
2271f
LTC2271
APPLICATIONS
n Low Power Instrumentation
n Software-Defined Radios
n Portable Medical Imaging
n Multi-Channel Data Acquisition
TYPICAL APPLICATION
DESCRIPTION
16-Bit, 20Msps
Serial Low Noise Dual ADC
The LTC
®2271 is a 2-channel, simultaneous sampling
16-bit A/D converter designed for digitizing high frequency,
wide dynamic range signals. It is perfect for demanding
communications applications with AC performance that
includes 84.1dB SNR and 99dB spurious free dynamic
range (SFDR).
DC specs include ±1LSB INL (typ), ±0.2LSB DNL (typ)
and no missing codes over temperature. The transition
noise is 1.44LSBRMS.
To minimize the number of data lines the digital outputs
are serial LVDS. Each channel outputs one bit, two bits or
four bits at a time. The LVDS drivers have optional internal
termination and adjustable output levels to ensure clean
signal integrity.
The ENC+ and ENCinputs may be driven differentially or
single ended with a sine wave, PECL, LVDS, TTL or CMOS
inputs. An internal clock duty cycle stabilizer allows high
performance at full speed for a wide range of clock duty
cycles.
FEATURES
n 2-Channel Simultaneous Sampling ADC
n Serial LVDS Outputs: 1, 2 or 4 Bits per Channel
n 84.1dB SNR (46μVRMS Input Referred Noise)
n 99dB SFDR
n Low Power: 185mW Total
n 92mW per Channel
n Single 1.8V Supply
n Selectable Input Ranges: 1VP-P to 2.1VP-P
n 200MHz Full-Power Bandwidth S/H
n Shutdown and Nap Modes
n Serial SPI Port for Configuration
n Pin Compatible With
LTC2190: 16-Bit, 25Msps, 104mW
n 52-Lead (7mm × 8mm) QFN Package
16-BIT
ADC CORE
CH1
ANALOG
INPUT
CH2
ANALOG
INPUT
ENCODE
INPUT
S/H
16-BIT
ADC CORE
OUT1A
OUT1B
OUT1C
OUT1D
OUT2A
OUT2B
OUT2C
OUT2D
DATA CLOCK OUT
FRAME
S/H
DATA
SERIALIZER
PLL
OGND
2271 TA01
SERIALIZED
LVDS
OUTPUTS
GND
VDD
OVDD
1.8V
1.8V
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.
Integral Non-Linearity (INL)
OUTPUT CODE
0
–2.0
–1.5
–1.0
–0.5
0.5
0.0
1.0
1.5
2.0
16384
32768
49152
65536
2271 TA02


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