LTC1090

更新时间： 2024-11-19 22:57:35

品牌	Logo	应用领域
凌特 - Linear		/
页数	文件大小	规格书
28页	343K
描述
Single Chip 10-Bit Data Acquisition System

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LTC1090 数据手册

LTC1090

Single Chip 10-Bit Data

Acquisition System

FEATURES

DESCRIPTIO

The LTC^®1090 is a data acquisition component which

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

verter. It uses LTCMOS^TMswitched capacitor technology

to perform either 10-bit unipolar, or 9-bit plus sign bipolar

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

configured for either single ended or differential inputs (or

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

included for all single ended input channels.

■

Software Programmable Features:

Unipolar/Bipolar Conversions

4 Differential/8 Single Ended Inputs

MSB or LSB First Data Sequence

Variable Data Word Length

■

Built-In Sample and Hold

Single Supply 5V, 10V or ±5V Operation

Direct 4 Wire Interface to Most MPU Serial Ports and

All MPU Parallel Ports

30kHz Maximum Throughput Rate

■

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

standard full duplex serial interfaces. It allows either

MSB or LSB first data and automatically provides 2’s

complement output coding in the bipolar mode. The

output data word can be programmed for a length of 8, 10,

12 or 16 bits. This allows easy interface to shift registers

and a variety of processors.

■

KEY SPECIFICATIO S

■

Resolution: 10 Bits

■

Total Unadjusted Error (LTC1090A): ±1/2LSB Max

■

Conversion Time: 22µs

The LTC1090A is specified with total unadjusted error

(including the effects of offset, linearity and gain errors)

less than ±0.5LSB.

■

Supply Current: 2.5mA Max, 1.0mA Typ

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

LTCMOS is a trademark of Linear Technology Corp.

TheLTC1090isspecifiedwithoffsetandlinearitylessthan

±0.5LSB but with a gain error limit of ±2LSB for

applications where gain is adjustable or less critical.

TYPICAL APPLICATIO

FOR 8051 CODE SEE

APPLICATIONS INFORMATION

SECTION

LTC1090

MPU

(e.g., 8051)

Linearity Plot

DIFFERENTIAL

INPUT

1.0

BIPOLAR INPUT

0.5

0.0

–5V

P1.1

P1.2

P1.3

P1.4

OUT

SCLK

–0.5

–1.0

UNIPOLAR

INPUTS

SERIAL DATA

LINK

512

1024

OUTPUT CODE

LTC1090 • TA02

(+)

(–)

– UNIPOLAR

INPUT

LTC1090 • TA01

–5V

1090fc

12 3 4 5 6 7...28

中文翻译

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与LTC1090相关器件

型号	品牌	获取价格	描述	数据表
LTC1090AC	Linear	获取价格	Single Chip 10-Bit Data Acquisition System
LTC1090ACJ	Linear	获取价格	Single Chip 10-Bit Data Acquisition System
LTC1090ACN	Linear	获取价格	Single Chip 10-Bit Data Acquisition System
LTC1090ACN#PBF	Linear	获取价格	LTC1090 - Single Chip 10-Bit Data Acquisition System; Package: PDIP; Pins: 20; Temperature
LTC1090AM	Linear	获取价格	Single Chip 10-Bit Data Acquisition System
LTC1090AMJ	Linear	获取价格	Single Chip 10-Bit Data Acquisition System
LTC1090C	Linear	获取价格	Single Chip 10-Bit Data Acquisition System
LTC1090CJ	Linear	获取价格	Single Chip 10-Bit Data Acquisition System
LTC1090CN	Linear	获取价格	Single Chip 10-Bit Data Acquisition System
LTC1090CS	Linear	获取价格	Single Chip 10-Bit Data Acquisition System

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