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LTC1291DCN8#PBF

Description
2-Channel Single ADC SAR 54ksps 12-bit Serial 8-Pin PDIP N Tube
File Size324KB,20 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Parametric Compare View All

LTC1291DCN8#PBF Overview

2-Channel Single ADC SAR 54ksps 12-bit Serial 8-Pin PDIP N Tube

LTC1291DCN8#PBF Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesCompliant
ECCN (US)EAR99
Part StatusActive
HTS8542.39.00.01
Converter TypeGeneral Purpose
ArchitectureSAR
Resolution12bit
Number of ADCs1
Number of Input Channels1|2
Sampling Rate54ksps
Digital Interface TypeSerial (3-Wire, 4-Wire, SPI, Microwire)
Input TypeVoltage
Input Signal TypeSingle-Ended|Pseudo-Differential
Voltage ReferenceSupply
Polarity of Input VoltageUnipolar
Voltage Supply SourceSingle
Input Voltage5V
Typical Single Supply Voltage (V)5
Typical Power Dissipation (mW)30
Maximum Power Dissipation (mW)500
Integral Nonlinearity Error±0.75LSB
Full Scale Error±4LSB
No Missing Codes (bit)12
Sample and HoldYes
Single-Ended InputYes
Digital Supply SupportNo
Minimum Operating Temperature (°C)0
Maximum Operating Temperature (°C)70
PackagingTube
Supplier Temperature GradeCommercial
Supplier PackagePDIP N
Pin Count8
Standard Package NameDIP
MountingThrough Hole
Package Height3.3
Package Length10.16(Max)
Package Width6.48
PCB changed8
Lead ShapeThrough Hole
LTC1291
Single Chip 12-Bit
Data Acquisition System
FEATURES
s
s
s
s
DESCRIPTIO
s
s
s
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
s
s
s
The LTC
®
1291 is a data acquisition system that contains
a serial I/O successive approximation A/D converter. It
uses LTCMOS
TM
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
CC
).
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
TM
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
5V
0.5
0.4
0.3
CS
CH0
2-CHANNEL
MUX*
CH1
GND
V
CC
(V
REF
)
0.1µF
CLK
LTC1291
D
OUT
D
IN
DO
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
CC
AND GND WITH 1N4148 DIODES.
CONVERSION RESULTS ARE NOT VALID WHEN THE SELECTED CHANNEL OR
THE OTHER CHANNEL IS OVERVOLTAGED (V
IN
< GND OR V
IN
> V
CC
). SEE
SECTION ON OVERVOLTAGE PROTECTION IN THE APPLICATIONS INFORMATION.
U
Channel-to-Channel
INL Matching
0.2
0.1
0
–0.1
–0.2
–0.3
–0.4
–0.5
0
512 1024 1536 2048 2560 3072 3584 4096
CODE
1291 TA02
U
U
+
1291fa
1

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LTC1291DCN8#PBF LTC1291BCN8#PBF LTC1291BCN8 LTC1291CCN8#PBF
Description 2-Channel Single ADC SAR 54ksps 12-bit Serial 8-Pin PDIP N Tube 2-Channel Single ADC SAR 54ksps 12-bit Serial 8-Pin PDIP N Tube 2-Channel Single ADC SAR 54ksps 12-bit Serial 8-Pin PDIP N 2-Channel Single ADC SAR 54ksps 12-bit Serial 8-Pin PDIP N Tube
EU restricts the use of certain hazardous substances Compliant Compliant Not Compliant Compliant
ECCN (US) EAR99 EAR99 EAR99 EAR99
Part Status Active Active Unconfirmed Active
Converter Type General Purpose General Purpose General Purpose General Purpose
Architecture SAR SAR SAR SAR
Resolution 12bit 12bit 12bit 12bit
Number of ADCs 1 1 1 1
Number of Input Channels 1|2 2|1 2|1 2|1
Sampling Rate 54ksps 54ksps 54ksps 54ksps
Digital Interface Type Serial (3-Wire, 4-Wire, SPI, Microwire) Serial (3-Wire, 4-Wire, SPI, Microwire) Serial (3-Wire, 4-Wire, SPI, Microwire) Serial (3-Wire, 4-Wire, SPI, Microwire)
Input Type Voltage Voltage Voltage Voltage
Input Signal Type Single-Ended|Pseudo-Differential Single-Ended|Pseudo-Differential Single-Ended|Pseudo-Differential Single-Ended|Pseudo-Differential
Voltage Reference Supply Supply Supply Supply
Polarity of Input Voltage Unipolar Unipolar Unipolar Unipolar
Voltage Supply Source Single Single Single Single
Input Voltage 5V 5V 5V 5V
Typical Single Supply Voltage (V) 5 5 5 5
Typical Power Dissipation (mW) 30 30 30 30
Maximum Power Dissipation (mW) 500 500 500 500
Integral Nonlinearity Error ±0.75LSB ±0.5LSB ±0.5LSB ±0.5LSB
Full Scale Error ±4LSB ±1LSB ±1LSB ±2LSB
No Missing Codes (bit) 12 12 12 12
Sample and Hold Yes Yes Yes Yes
Single-Ended Input Yes Yes Yes Yes
Digital Supply Support No No No No
Maximum Operating Temperature (°C) 70 70 70 70
Supplier Temperature Grade Commercial Commercial Commercial Commercial
Supplier Package PDIP N PDIP N PDIP N PDIP N
Pin Count 8 8 8 8
Standard Package Name DIP DIP DIP DIP
Mounting Through Hole Through Hole Through Hole Through Hole
Package Height 3.3 3.3 3.3 3.3
Package Length 10.16(Max) 10.16(Max) 10.16(Max) 10.16(Max)
Package Width 6.48 6.48 6.48 6.48
PCB changed 8 8 8 8
Lead Shape Through Hole Through Hole Through Hole Through Hole
Packaging Tube Tube - Tube
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