LTC1420C

更新时间： 2024-11-11 22:57:35

品牌	Logo	应用领域
凌特 - Linear		/
页数	文件大小	规格书
20页	270K
描述
12-Bit, 10Msps, Sampling ADC

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中文翻译

获取价格

数据手册

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LTC1420C 数据手册

LTC1420

12-Bit, 10Msps,

Sampling ADC

FEATURES

DESCRIPTIO

TheLTC^®1420isa10Msps,12-bitsamplingA/Dconverter

that draws only 250mW from either single 5V or dual ±5V

supplies. Thiseasy-to-usedeviceincludesahighdynamic

range sample-and-hold, a precision reference and a PGA

input circuit.

■

10Msps Sample Rate

Single 5V Supply or ±5V Supplies

■

Integral Nonlinearity Error <0.35LSB

Differential Nonlinearity <0.25LSB

71dB S/(N + D) and 83dB SFDR at Nyquist

100MHz Full-Power Bandwidth Sampling

±2.048V, ±1.024V and ±0.512V Bipolar Input Range

Input PGA

The LTC1420 has a flexible input circuit that allows full-

scale input ranges of ±2.048V ±1.024V and ±0.512V. The

input common mode voltage is arbitrary, though a 2.5V

reference is provided for single supply applications. The

input PGA has a digitally selectable 1x or 2x gain.

Out-of-Range Indicator

True Differential Inputs with 75dB CMRR

Power Dissipation: 250mW

28-Pin Narrow SSOP Package

Maximum DC specs include ±1LSB INL and ±1LSB DNL

over temperature. Outstanding AC performance includes

71dB S/(N + D) and 83dB SFDR at the Nyquist input

frequency of 5MHz.

APPLICATIO S

■

Telecommunications

Theuniquedifferentialinputsample-and-holdcanacquire

single-ended or differential input signals up to its 100MHz

bandwidth. The 75dB common mode rejection allows

users to eliminate ground loops and common mode noise

by measuring signals differentially from the source. A

separate output logic supply allows direct connection to

3V components.

■

Digital Signal Processing

■

Multiplexed Data Acquisition Systems

High Speed Data Acquisition

Spectral Analysis

Imaging Systems

■

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

TYPICAL APPLICATIO

OPTIONAL 3V

LOGIC SUPPLY

1µF

GAIN

Typical INL Curve

1.00

OF 27

0.75

0.50

S/H

PIPELINED 12-BIT ADC

–A

–

D11 (MSB) 10

OUTPUT

BUFFERS

0.25

DIGITAL

OUTPUT

1µF

DIGITAL CORRECTION

LOGIC

MODE SELECT

D0 (LSB) 20

CLK 26

SENSE

–0.25

–0.50

–0.75

–1.00

10MHz CLK

2.5V

REFERENCE

REF

2.048V

1024

2048

3072

4096

CODE

1420 TA02

GND

OGND

1420 TA01

1µF

0V OR –5V

12 3 4 5 6 7...20

中文翻译

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LTC1420CGN	Linear	获取价格	12-Bit, 10Msps, Sampling ADC
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LTC1420IGN#TR	Linear	获取价格	暂无描述
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