Datasheet > LTC1091

LTC1091

更新时间： 2023-12-20 18:45:39

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
32页	281K
描述
1 通道、10 位串行 I/O 数据采集系统

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数据手册

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LTC1091 数据手册

LTC1091/ LTC1092

LTC1093/ LTC1094

1-, 2-, 6- a nd 8-Cha nne l, 10-Bit

Se ria l I/ O Da ta Ac q uisitio n Syste m s

and-holds. On-chip serial ports allow efficient data trans-

fer to a wide range of microprocessors and microcontrol-

lers. These circuits can provide a complete data acquisi-

tionsysteminratiometricapplications orcanbeusedwith

an external reference in others.

FEATURES

■

Programmable Features

– Unipolar/Bipolar Conversions

–

Differential/Single-Ended Multiplexer

Configurations

The high impedance analog inputs and the ability to

operate with reduced spans (below 1V full scale) allow

direct connection to sensors and transducers in many

applications, eliminating the need for gain stages.

■

Sample-and-Holds

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

Direct 3- or 4-Wire Interface to Most MPU Serial

Ports and All MPU Parallel I/O Ports

Analog Inputs Common Mode to Supply Rails

Resolution: 10 Bits

Total Unadjusted Error (A Grade): ±1LSB Over Temp

Fast Conversion Time: 20µs

Low Supply Current

■

An efficient serial port communicates without external

hardware to most MPU serial ports and all MPU parallel

I/O ports allowing eight channels of data to be transmitted

over as few as three wires. This, coupled with low power

consumption, makes remote location possible and facili-

tates transmitting data through isolation barriers.

LTC1091: 3.5mA Max, 1.5mA Typ

LTC1092/LTC1093/LTC1094: 2.5mA Max, 1mA Typ

Temperature drift of offset, linearity and full-scale error

are all extremely low (1ppm/°C typically) allowing all

grades to be specified with offset and linearity errors of

±0.5LSB maximum over temperature. In addition, the A

grade devices are specified with full-scale error and total

unadjusted error (including the effects of offset, linearity

and full-scale errors) of ±1LSB maximum over tempera-

ture. The lower grade has a full-scale specification of

±2LSB for applications where full scale is adjustable or

less critical.

DESCRIPTIO

The LTC^®1091/LTC1092/LTC1093/LTC1094 10-bit data

acquisition systems are designed to provide complete

function, excellent accuracy and ease of use when digitiz-

ing analog data from a wide variety of signal sources and

transducers. Built around a 10-bit, switched capacitor,

successiveapproximationA/Dcore, thesedevices include

softwareconfigurableanalogmultiplexers andbipolarand

unipolar conversion modes as well as on-chip sample-

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

TYPICAL APPLICATION

1.25

= 5V

1.00

0.75

0.50

0.25

4.7µF

MPU

(e.g., 8051)

REF

)

P1.4

P1.3

P1.2

ANALOG INPUT #1

0V TO 5V RANGE

ANALOG INPUT #2

0V TO 5V RANGE

CLK

CH0

CH1

GND

LTC1091

OUT

1091 TA01

SERIAL DATA LINK

FOR 8051 CODE SEE

APPLICATIONS INFORMATION

SECTION

REFERENCE VOLTAGE (V)

1091 TA02

12 3 4 5 6 7...32

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与LTC1091相关器件

型号	品牌	描述	获取价格	数据表
LTC1091_15	Linear	1-, 2-, 6- and 8-Channel, 10-Bit Serial I/O Data Acquisition Systems	获取价格
LTC1091AC	Linear	1-, 2-, 6- and 8-Channel, 10-Bit Serial I/O Data Acquisition Systems	获取价格
LTC1091ACJ8	ETC	Single-Ended Data Acquisition System	获取价格
LTC1091ACN8	Linear	1-, 2-, 6- and 8-Channel, 10-Bit Serial I/O Data Acquisition Systems	获取价格
LTC1091ACN8#PBF	Linear	LTC1091 - 1, 2, 6 and 8 Channel, 10-Bit Serial I/O Data Acquisition Systems; Package: PDIP	获取价格
LTC1091AMJ8	Linear	IC 2-CH 10-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, CDIP8, CERAMIC, DIP-8, Analog	获取价格

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