LTC1291CCN8 datasheet, PDF - EEWORLD Datasheet

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LTC1291CCN8: Description2-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDIP8; CategoryAnalog mixed-signal IC converter; File Size328KB，20 Pages; ManufacturerLinear ( ADI ); Websitehttp://www.analog.com/cn/index.html

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LTC1291CCN8 Overview

2-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDIP8

LTC1291CCN8 Parametric

Parameter Name	Attribute value
Brand Name	Linear Technology
Is it Rohs certified?	incompatible
Maker	Linear ( ADI )
Parts packaging code	DIP
package instruction	DIP, DIP8,.3
Contacts	8
Manufacturer packaging code	N
Reach Compliance Code	_compli
ECCN code	EAR99
Maximum analog input voltage	5.05 V
Minimum analog input voltage	-0.05 V
Maximum conversion time	12 µs
Converter type	ADC, SUCCESSIVE APPROXIMATION
JESD-30 code	R-PDIP-T8
JESD-609 code	e0
Maximum linear error (EL)	0.0122%
Humidity sensitivity level	1
Number of analog input channels	2
Number of digits	12
Number of functions	1
Number of terminals	8
Maximum operating temperature	70 °C
Minimum operating temperature
Output bit code	BINARY
Output format	SERIAL
Package body material	PLASTIC/EPOXY
encapsulated code	DIP
Encapsulate equivalent code	DIP8,.3
Package shape	RECTANGULAR
Package form	IN-LINE
Peak Reflow Temperature (Celsius)	NOT SPECIFIED
power supply	5 V
Certification status	Not Qualified
Sample and hold/Track and hold	SAMPLE
Maximum seat height	3.937 mm
Nominal supply voltage	5 V
surface mount	NO
technology	CMOS
Temperature level	COMMERCIAL
Terminal surface	Tin/Lead (Sn/Pb)
Terminal form	THROUGH-HOLE
Terminal pitch	2.54 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED
width	7.62 mm

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LTC1291

Single Chip 12-Bit

Data Acquisition System

FEATURES

DESCRIPTIO

Built-In Sample-and-Hold

Single Supply 5V Operation

Power Shutdown

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

Ports and All MPU Parallel Ports

Two-Channel Analog Multiplexer

Analog Inputs Common Mode to Supply Rails

8-Pin DIP Package

KEY SPECIFICATIO S

The LTC

1291 is a data acquisition system that contains

a serial I/O successive approximation A/D converter. It

uses LTCMOS

switched capacitor technology to per-

form a 12-bit unipolar A/D conversion. The input multi-

plexer can be configured for either single-ended or differ-

ential inputs. An on-chip sample-and-hold is included on

the “+” input. When the LTC1291 is idle, it can be powered

down in applications where low power consumption is

desired. An external reference is not required because the

LTC1291 takes its reference from the power supply (V

All these features are packaged in an 8-pin DIP.

The serial I/O is designed to communicate without external

hardware to most MPU serial ports and all MPU parallel

I/O ports allowing data to be transmitted over three or four

wires. Given the accuracy, ease of use and small package

size, this device is well suited for digitizing analog signals

in remote applications where minimum number of inter-

connects, small physical size, and low power consump-

tion are important.

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

LTCMOS

is a trademark of Linear Technology Corporation

Resolution: 12 Bits

Fast Conversion Time: 12µs Max Over Temp.

Low Supply Current:

6.0mA (Typ) Active Mode

10µA (Max) Shutdown Mode

TYPICAL APPLICATIO

2-Channel 12-Bit Data Acquisition System

22µF

TANTALUM

0.5

0.4

0.3

CH0

2-CHANNEL

MUX*

CH1

GND

REF

)

0.1µF

CLK

LTC1291

OUT

DELTA (LSB)

SCK

MC68HC11

MISO

MOSI

1291 TA01

*FOR OVERVOLTAGE PROTECTION, LIMIT THE INPUT CURRENT TO 15mA

PER PIN OR CLAMP THE INPUTS TO V

AND GND WITH 1N4148 DIODES.

CONVERSION RESULTS ARE NOT VALID WHEN THE SELECTED CHANNEL OR

THE OTHER CHANNEL IS OVERVOLTAGED (V

< GND OR V

> V

). SEE

SECTION ON OVERVOLTAGE PROTECTION IN THE APPLICATIONS INFORMATION.

Channel-to-Channel

INL Matching

0.2

0.1

–0.1

–0.2

–0.3

–0.4

–0.5

512 1024 1536 2048 2560 3072 3584 4096

CODE

1291 TA02

1291fa

LTC1291CCN8 Related Products

	LTC1291CCN8	LTC1291BCN8	LTC1291_1	LTC1291DCN8
Description	2-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDIP8	2-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDIP8	2-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDIP8	2-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDIP8
Maximum conversion time	12 µs	12 µs	12 uS	12 µs
Number of digits	12	12	12	12
Number of functions	1	1	1	1
Number of terminals	8	8	8	8
Maximum operating temperature	70 °C	70 °C	70 Cel	70 °C
Output format	SERIAL	SERIAL	SERIAL	SERIAL
Temperature level	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL
Terminal form	THROUGH-HOLE	THROUGH-HOLE	THROUGH-HOLE	THROUGH-HOLE
Terminal location	DUAL	DUAL	DUAL	DUAL
Brand Name	Linear Technology	Linear Technology	-	Linear Technology
Is it Rohs certified?	incompatible	incompatible	-	incompatible
Maker	Linear ( ADI )	Linear ( ADI )	-	Linear ( ADI )
Parts packaging code	DIP	DIP	-	DIP
package instruction	DIP, DIP8,.3	DIP, DIP8,.3	-	DIP, DIP8,.3
Contacts	8	8	-	8
Manufacturer packaging code	N	N	-	N
Reach Compliance Code	_compli	_compli	-	_compli
ECCN code	EAR99	EAR99	-	EAR99
Maximum analog input voltage	5.05 V	5.05 V	-	5.05 V
Minimum analog input voltage	-0.05 V	-0.05 V	-	-0.05 V
Converter type	ADC, SUCCESSIVE APPROXIMATION	ADC, SUCCESSIVE APPROXIMATION	-	ADC, SUCCESSIVE APPROXIMATION
JESD-30 code	R-PDIP-T8	R-PDIP-T8	-	R-PDIP-T8
JESD-609 code	e0	e0	-	e0
Maximum linear error (EL)	0.0122%	0.0122%	-	0.0183%
Humidity sensitivity level	1	1	-	1
Number of analog input channels	2	2	-	2
Output bit code	BINARY	BINARY	-	BINARY
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	-	PLASTIC/EPOXY
encapsulated code	DIP	DIP	-	DIP
Encapsulate equivalent code	DIP8,.3	DIP8,.3	-	DIP8,.3
Package shape	RECTANGULAR	RECTANGULAR	-	RECTANGULAR
Package form	IN-LINE	IN-LINE	-	IN-LINE
Peak Reflow Temperature (Celsius)	NOT SPECIFIED	NOT SPECIFIED	-	NOT SPECIFIED
power supply	5 V	5 V	-	5 V
Certification status	Not Qualified	Not Qualified	-	Not Qualified
Sample and hold/Track and hold	SAMPLE	SAMPLE	-	SAMPLE
Maximum seat height	3.937 mm	3.937 mm	-	3.937 mm
Nominal supply voltage	5 V	5 V	-	5 V
surface mount	NO	NO	-	NO
technology	CMOS	CMOS	-	CMOS
Terminal surface	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)	-	Tin/Lead (Sn/Pb)
Terminal pitch	2.54 mm	2.54 mm	-	2.54 mm
Maximum time at peak reflow temperature	NOT SPECIFIED	NOT SPECIFIED	-	NOT SPECIFIED
width	7.62 mm	7.62 mm	-	7.62 mm

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