LTC1091CN8PBF Linear Technology Corporation, LTC1091CN8PBF Datasheet

LTC1091CN8PBF

Manufacturer Part Number

LTC1091CN8PBF

Description

DIP8

Manufacturer

Linear Technology Corporation

Datasheets

1.LTC1094CNPBF.pdf (32 pages)

2.LTC1094CNPBF.pdf (32 pages)

Specifications of LTC1091CN8PBF

Date_code

09+

Current page: 1 of 32
Download datasheet (282Kb)

FEATURES

TYPICAL

DESCRIPTIO

The LTC

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,

successive approximation A/D core, these devices include

software configurable analog multiplexers and bipolar and

unipolar conversion modes as well as on-chip sample-

Programmable Features

– Unipolar/Bipolar Conversions

– Differential/Single-Ended Multiplexer

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: 20 s

Low Supply Current

ANALOG INPUT #1

ANALOG INPUT #2

0V TO 5V RANGE

Configurations

LTC1091: 3.5mA Max, 1.5mA Typ

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

1091/LTC1092/LTC1093/LTC1094 10-bit data

APPLICATION

CH0

CH1

GND

LTC1091

REF

CLK

OUT

)

SERIAL DATA LINK

4.7 F

APPLICATIONS INFORMATION

Serial I/O Data Acquisition Systems

FOR 8051 CODE SEE

P1.4

P1.3

P1.2

SECTION

(e.g., 8051)

MPU

1-, 2-, 6- and 8-Channel, 10-Bit

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-

tion system in ratiometric applications or can be used with

an external reference in others.

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.

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.

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

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

less critical.

0.5LSB maximum over temperature. In addition, the A

2LSB for applications where full scale is adjustable or

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

1091 TA01

1.25

1.00

0.75

0.50

0.25

LTC1093/LTC1094

LTC1091/LTC1092

= 5V

REFERENCE VOLTAGE (V)

1091 TA02

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