LTC6945 datasheet(1/24 Pages) LINER

номер детали	LTC6945

подробное описание детали	16-Bit, 20Msps Serial Low Noise Dual ADC

PDF	24 Pages

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производитель	LINER [Linear Technology]

домашняя страница	http://www.linear.com

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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 ENC– inputs 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

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

Аналогичный номер детали - LTC6945

производитель	номер детали	датащи	подробное описание детали
Linear Technology	LTC6945	584Kb / 36P	16-Bit, 20Msps Low Noise Dual ADC
	LTC6945	1Mb / 36P	Low Phase Noise, Dual Output Buffer/Driver/Logic Converter
	LTC6945	378Kb / 28P	Ultralow Noise and Spurious 0.35GHz to 6GHz Integer-N Synthesizer

More results

Аналогичное описание - LTC6945

производитель	номер детали	датащи	подробное описание детали
Linear Technology	LTC2188	608Kb / 36P	16-Bit, 20Msps Low Power Dual ADC
	LTC2201	1Mb / 24P	16-Bit, 20Msps ADC
	LTC2270	584Kb / 36P	16-Bit, 20Msps Low Noise Dual ADC
	LTC2269	762Kb / 32P	16-Bit, 20Msps Low Noise ADC
	LTC2201	1Mb / 24P	16-Bit, 20Msps ADC
	LTC2271	405Kb / 24P	16-Bit, 20Msps Serial Low Noise Dual ADC
	LTC2159	525Kb / 32P	16-Bit, 20Msps Low Power ADC
	LTC2188	612Kb / 36P	16-Bit, 20Msps Low Power Dual ADC
	LTC2269	762Kb / 32P	16-Bit, 20Msps Low Noise ADC
	LTC2270	584Kb / 36P	16-Bit, 20Msps Low Noise Dual ADC

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Аналогичный номер детали - LTC6945

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