Datasheet > LTC1742

LTC1742

更新时间： 2024-09-29 14:57:51

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
20页	572K
描述
14 位、65Msps 低噪声 ADC

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中文翻译

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数据手册

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LTC1742 数据手册

LTC1742

14-Bit, 65Msps Low Noise ADC

FEATURES

DESCRIPTIO

The LTC^®1742 is an 65Msps, sampling 14-bit A/D con-

verter designed for digitizing high frequency, wide dy-

namic range signals. Pin selectable input ranges of ±1V

and ±1.6V along with a resistor programmable mode

allowtheLTC1742’sinputrangetobeoptimizedforawide

variety of applications.

■

Sample Rate: 65Msps

■

76.5dB SNR and 90dB SFDR (3.2V Range)

■

72.8dB SNR and 90dB SFDR (2V Range)

■

No Missing Codes

Single 5V Supply

Power Dissipation: 1.275W

■

Selectable Input Ranges: ±1V or ±1.6V

The LTC1742 is perfect for demanding communications

applications with AC performance that includes 76.5dB

SNRand90dBspuriousfreedynamicrange.Ultralowjitter

of0.15ps_RMSallowsundersamplingofIFfrequencieswith

excellentnoiseperformance.DCspecsinclude±3LSBINL

and ±1LSB DNL.

■

240MHz Full Power Bandwidth S/H

■

Pin Compatible Family

25Msps: LTC1746 (14-Bit), LTC1745 (12-Bit)

50Msps: LTC1744 (14-Bit), LTC1743 (12-Bit)

65Msps: LTC1742 (14-Bit), LTC1741 (12-Bit)

80Msps: LTC1748 (14-Bit), LTC1747 (12-Bit)

■

The digital interface is compatible with 5V, 3V, 2V and

LVDS logic levels. The ENC and ENC inputs may be driven

differentially from PECL, GTL and other low swing logic

families or from single-ended TTL or CMOS. The low

noise, high gain ENC and ENC inputs may also be driven

by a sinusoidal signal without degrading performance. A

separate output power supply can be operated from 0.5V

to 5V, making it easy to connect directly to low voltage

DSPs or FIFOs.

48-Pin TSSOP Package

APPLICATIO S

■

Telecommunications

■

Receivers

■

Cellular Base Stations

Spectrum Analysis

Imaging Systems

■

, LTC and LT are registered trademarks of Linear Technology Corporation.

The TSSOP package with a flow-through pinout simplifies

the board layout.

BLOCK DIAGRA

65Msps, 14-Bit ADC with a 2V Differential Input Range

0.5V

TO 5V

0.1µF

D13

CORRECTION

LOGIC AND

SHIFT

±1V

DIFFERENTIAL

ANALOG INPUT

S/H

AMP

14-BIT

PIPELINED ADC

OUTPUT

LATCHES

•

–

CLKOUT

OGND

SENSE

BUFFER

1µF

RANGE

SELECT

DIFF AMP

1µF

GND

2.35V

REF

CONTROL LOGIC

4.7µF

1742 BD

REFLB REFHA

4.7µF

REFLA REFHB ENC ENC MSBINV

0.1µF

DIFFERENTIAL

ENCODE INPUT

1µF

1742f

12 3 4 5 6 7...20

中文翻译

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与LTC1742相关器件

型号	品牌	获取价格	描述	数据表
LTC1742CFW	Linear	获取价格	14-Bit, 65Msps Low Noise ADC
LTC1742IFW	Linear	获取价格	14-Bit, 65Msps Low Noise ADC
LTC1742IFW#PBF	Linear	获取价格	LTC1742 - 14-Bit, 65Msps Low Noise ADC; Package: TSSOP; Pins: 48; Temperature Range: -40&a
LTC1742IFW#TR	Linear	获取价格	LTC1742 - 14-Bit, 65Msps Low Noise ADC; Package: TSSOP; Pins: 48; Temperature Range: -40&a
LTC1742IFW#TRPBF	Linear	获取价格	LTC1742 - 14-Bit, 65Msps Low Noise ADC; Package: TSSOP; Pins: 48; Temperature Range: -40&a
LTC1743	Linear	获取价格	12-Bit, 50Msps ADC
LTC1743	ADI	获取价格	12 位、50Msps ADC
LTC1743CFW	Linear	获取价格	12-Bit, 50Msps ADC
LTC1743CFW#PBF	Linear	获取价格	LTC1743 - 12-Bit, 50Msps ADC; Package: TSSOP; Pins: 48; Temperature Range: 0°C to
LTC1743CFW#TRPBF	Linear	获取价格	LTC1743 - 12-Bit, 50Msps ADC; Package: TSSOP; Pins: 48; Temperature Range: 0°C to

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