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LTC1291, LTC1291BMJ/883, LTC1291CJ8

Table of contents:
Info of LTC1291
Info of LTC1291BMJ/883
Info of LTC1291CJ8

LTC1291, LTC1291BMJ/883, LTC1291CJ8 Selling Leads, Datasheet

MFG:1582 Package Cooled:N/A D/C:8

LTC1291, LTC1291BMJ/883, LTC1291CJ8 Picture

LTC1291, LTC1291BMJ/883, LTC1291CJ8 Datasheet download

Five Points

Part Number: LTC1291

MFG: 1582

Package Cooled: N/A

D/C: 8

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LTC1291 General Description

The LTC®1291 is a data acquisition system that contains a serial I/O successive approximation A/D converter. It uses LTCMOSTM switched capacitor technology to perform a 12-bit unipolar A/D conversion. The input multiplexer can be configured for either single-ended or differential 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 (VCC). 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 interconnects, small physical size, and low power consumption are important.

LTC1291 Maximum Ratings

Supply Voltage (V_CC) to GND ............................... 12V
Voltage
Analog Inputs ............................ 0.3V to V_CC + 0.3V
Digital Inputs ........................................ 0.3V to 12V
Digital Outputs .......................... 0.3V to V_CC + 0.3V
Power Dissipation ......................................... 500mW
Operating Temperature Range
LTC1291BC, LTC1291CC,
LTC1291DC ............................................ 0 to 70
Storage Temperature Range ............ 65 to 150
Lead Temperature (Soldering, 10 sec)............ 300

LTC1291 Features

· 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

LTC1291 Typical Application

· Resolution: 12 Bits
· Fast Conversion Time: 12ms Max Over Temp.
· Low Supply Current:
6.0mA (Typ) Active Mode
10mA (Max) Shutdown Mode

LTC1291 Connection Diagram

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