Datasheet > LTC2174-14

LTC2174-14

更新时间： 2022-12-28 23:40:47

品牌	Logo	应用领域
凌特 - Linear		/
页数	文件大小	规格书
32页	572K
描述
14-Bit, 125Msps/105Msps/80Msps Low Power Quad ADCs

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LTC2174-14 数据手册

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LTC2174-14/LTC2173-14

14-Bit, 125Msps/105Msps/

80Msps Low Power Quad ADCs

FEATURES

DESCRIPTION

The LTC^®2175-14/2174-14/2173-14 are 4-channel, simul-

taneous sampling 14-bit A/D converters designed for

digitizing high frequency, wide dynamic range signals.

They are perfect for demanding communications applica-

tions with AC performance that includes 73.4dB SNR and

88dB spurious free dynamic range (SFDR). Ultralow jitter

4-Channel Simultaneous Sampling ADC

73.4dB SNR

88dB SFDR

Low Power: 558mW/450mW/376mW

Single 1.8V Supply

Serial LVDS Outputs: 1 or 2 Bits per Channel

of 0.15ps

allows undersampling of IF frequencies with

Selectable Input Ranges: 1V to 2V

RMS

P-P

excellent noise performance.

800MHz Full Power Bandwidth S/H

Shutdown and Nap Modes

DC specs include 1LSB INL (typ), 0.3LSB DNL (typ) and

no missing codes over temperature. The transition noise

Serial SPI Port for Conﬁguration

Pin Compatible 14-Bit and 12-Bit Versions

52-Pin (7mm × 8mm) QFN Package

is a low 1.2 LSB

RMS

The digital outputs are serial LVDS to minimize the num-

ber of data lines. Each channel outputs two bits at a time

(2-lane mode). At lower sampling rates there is a one bit

per channel option (1-lane mode). The LVDS drivers have

optional internal termination and adjustable output levels

to ensure clean signal integrity.

APPLICATIONS

Communications

Cellular Base Stations

Software Deﬁned Radios

Portable Medical Imaging

–

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 al-

lows high performance at full speed for a wide range of

clock duty cycles.

Multichannel Data Acquisition

Nondestructive Testing

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

1.8V

LTC2175-14, 125Msps,

2-Tone FFT, f_IN= 70MHz and 75MHz

CHANNEL 1

ANALOG

INPUT

–10

–20

–30

–40

–50

14-BIT

OUT1A

OUT1B

S/H

ADC CORE

CHANNEL 2

ANALOG

INPUT

OUT2A

OUT2B

14-BIT

ADC CORE

DATA

SERIALIZER

SERIALIZED

CHANNEL 3

ANALOG

INPUT

OUT3A

OUT3B

–60

14-BIT

ADC CORE

LVDS

–70

OUTPUTS

–80

–90

–100

–110

–120

CHANNEL 4

ANALOG

INPUT

OUT4A

OUT4B

14-BIT

ADC CORE

DATA

CLOCK

OUT

ENCODE

INPUT

PLL

FREQUENCY (MHz)

FRAME

217514 TA01b

GND

OGND

217514 TA01

21754314p

12 3 4 5 6 7...32

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