Datasheet > LTC1290BMJ#TRPBF

LTC1290BMJ#TRPBF

更新时间： 2024-11-14 07:55:47

品牌	Logo	应用领域
凌特 - Linear		/
页数	文件大小	规格书
32页	618K
描述
IC 8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, CDIP20, 0.300 INCH, LEAD FREE, HERMETIC SEALED, CERAMIC, DIP-20, Analog to Digital Converter

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LTC1290BMJ#TRPBF 数据手册

LTC1290

Single Chip 12-Bit Data

Acquisition System

FEATURES

DESCRIPTIO

The LTC^®1290 is a data acquisition component which

contains a serial I/O successive approximation A/D con-

verter. It uses LTCMOS^TMswitched capacitor technology

toperformeither12-bitunipolaror11-bitplussignbipolar

A/D conversions. The 8-channel input multiplexer can be

configuredforeithersingle-endedordifferentialinputs(or

combinations thereof). An on-chip sample-and-hold is

included for all single-ended input channels. When the

LTC1290 is idle it can be powered down with a serial word

in applications where low power consumption is desired.

■

Software Programmable Features

– Unipolar/Bipolar Conversion

– Four Differential/Eight Single-Ended Inputs

– MSB- or LSB-First Data Sequence

– Variable Data Word Length

– Power Shutdown

■

Built-In Sample-and-Hold

■

Single Supply 5V or ±5V Operation

Direct Four-Wire Interface to Most MPU Serial Ports

and All MPU Parallel Ports

50kHz Maximum Throughput Rate

■

The serial I/O is designed to be compatible with industry

standardfullduplexserialinterfaces. ItallowseitherMSB-

or LSB-first data and automatically provides 2's comple-

ment output coding in the bipolar mode. The output data

word can be programmed for a length of 8, 12 or 16 bits.

This allows easy interface to shift registers and a variety of

processors.

■

^{Available in 20-Lead PDIP}U^{and SO Wide Packages}

KEY SPECIFICATIO S

■

Resolution: 12 Bits

■

Fast Conversion Time: 13µs Max Over Temp

■

Low Supply Current: 6.0mA

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

LTCMOS is a trademark of Linear Technology Corporation. All other trademarks

are the property of their respective owners. Protected by U.S. Patents, including 5287525.

TYPICAL APPLICATIO

12-Bit 8-Channel Sampling Data Acquisition System

SINGLE-ENDED INPUT

0V TO 5V OR ±5V

CH0

CH1

CH2

CH3

CH4

CH5

CH6

CH7

COM

DGND

•

±15V OVERVOLTAGE RANGE*

22µF

1N5817

TANTALUM

ACLK

SCLK

TO AND FROM

MICROPROCESSOR

1N4148

DIFFERENTIAL INPUT (+)

OUT

LTC1290

±5V COMMON MODE RANGE (–)

LT^®1027

8V TO 40V

•

REF

–

4.7µF

TANTALUM

1µF

–5V

AGND

1N5817

0.1µF

1290 • TA01

* FOR OVERVOLTAGE PROTECTION ON ONLY ONE CHANNEL LIMIT THE INPUT CURRENT TO 15mA. FOR OVERVOLTAGE PROTECTION

ON MORE THAN ONE CHANNEL LIMIT THE INPUT CURRENT TO 7mA PER CHANNEL AND 28mA FOR ALL CHANNELS. (SEE SECTION ON

OVERVOLTAGE PROTECTION IN THE APPLICATIONS INFORMATION SECTION.) CONVERSION RESULTS ARE NOT VALID WHEN THE SELECTED

–

OR ANY OTHER CHANNEL IS OVERVOLTAGED (V < V OR V > V ).

1290fe

12 3 4 5 6 7...32

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与LTC1290BMJ#TRPBF相关器件

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LTC1290BMJ/883B	Linear	获取价格	IC 4-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, CDIP20, CERDIP-20, Analog to D
LTC1290CC	Linear	获取价格	Single Chip 12-Bit Data Acquisition System
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LTC1290CCN#PBF	Linear	获取价格	Single Chip 12-Bit Data Acquisition System
LTC1290CCN#TR	Linear	获取价格	IC 8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDIP20, 0.300 INCH, PLASTIC, D
LTC1290CCN#TRPBF	Linear	获取价格	IC 8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDIP20, 0.300 INCH, LEAD FREE,
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