LTC1392IS8 Linear Technology, LTC1392IS8 Datasheet

IC DATA ACQ SYSTEM 10BIT 8-SOIC

LTC1392IS8

Manufacturer Part Number
LTC1392IS8
Description
IC DATA ACQ SYSTEM 10BIT 8-SOIC
Manufacturer
Linear Technology
Type
Data Acquisition System (DAS)r
Datasheet

Specifications of LTC1392IS8

Resolution (bits)
10 b
Sampling Rate (per Second)
25k
Data Interface
Serial
Voltage Supply Source
Single Supply
Voltage - Supply
4.5 V ~ 6 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LTC1392IS8
Manufacturer:
LT
Quantity:
10 000
Part Number:
LTC1392IS8
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Part Number:
LTC1392IS8#TRPBF
Manufacturer:
ST
Quantity:
11 633
Part Number:
LTC1392IS8#TRPBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
FEATURE
A
TYPICAL
PPLICATI
, LTC and LT are registered trademarks of Linear Technology Corporation.
Complete Ambient Temperature Sensor Onboard
System Power Supply Monitor
10-Bit Resolution Rail-to-Rail Common-Mode
Differential Voltage Input
Available in 8-Pin SO and PDIP
0.2 A Supply Current When Idle
700 A Supply Current When Sampling at
Maximum Rate
Single Supply Voltage: 4.5V to 6V
3-Wire Half-Duplex Serial I/O
Communicates with Most MPU Serial Ports and All
MPU Parallel I/O Ports
Temperature Measurement
Power Supply Measurement
Current Measurement
Remote Data Acquisition
Environment Monitoring
(e.g., 68HC11)
MPU
Complete Temperature, Supply Voltage and
P1.4
P1.3
P1.2
A
S
PPLICATI
O
Supply Current Monitor
U
1
2
3
4
S
D
D
CLK
CS
IN
OUT
LTC1392
–V
+V
GND
V
O
CC
IN
IN
U
8
7
6
5
1 F
+
R
SENSE
I
LOAD
LTC1392 • TA01
5V
D
The LTC
designed to measure temperature, on-chip supply voltage
and a differential voltage. The differential inputs feature
rail-to-rail common mode input voltage range. The LTC1392
contains a temperature sensor, a 10-bit A/D converter with
sample-and-hold, a high accuracy bandgap reference and
a 3-wire half-duplex serial interface.
The LTC1392 can be programmed to measure ambient
temperature, power supply voltage and an external volt-
age at the differential input pins, that can also be used for
current measurement using an external sense resistor.
When measuring temperature, the output code of the A/D
converter is linearly proportional to the temperature in C.
Production trimming achieves 2 C initial accuracy at
room temperature and 4 C over the full – 40 C to 85 C
temperature range.
The on-chip serial port allows efficient data transfer to a
wide range of MPUs over three or four wires. This,
coupled with low power consumption, makes remote
location sensing possible and facilitates transmitting
data through isolation barriers.
Differential Voltage Monitor
ESCRIPTIO
Micropower Temperature,
–1
–2
–3
–4
–5
5
4
3
2
1
0
®
–40
1392 is a micropower data acquisition system
–20
Output Temperature Error
0
TEMPERATURE ( C)
U
Power Supply and
20
40
60
LTC1392 • TA02
80
100
LTC1392
LTC1392C
GUARANTEED
LIMIT
LTC1392I
GUARANTEED
LIMIT
TYPICAL
1

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LTC1392IS8 Summary of contents

Page 1

... Communicates with Most MPU Serial Ports and All MPU Parallel I/O Ports O U PPLICATI A S Temperature Measurement Power Supply Measurement Current Measurement Remote Data Acquisition Environment Monitoring , LTC and LT are registered trademarks of Linear Technology Corporation TYPICAL A PPLICATI Complete Temperature, Supply Voltage and Supply Current Monitor LTC1392 1 8 P1.4 ...

Page 2

... (Note 7) A MAX MIN (Note 4) MIN A MAX U W ORDER PART NUMBER TOP VIEW LTC1392CN8 – LTC1392CS8 + LTC1392IN8 GND 5 LTC1392IS8 S8 PACKAGE 8-LEAD PLASTIC SO S8 PART MARKING = 100 C/ W (N8) JA 1392 = 130 C/ W (S8) JA 1392I MIN TYP MAX 0 0 UNITS ...

Page 3

ELECTRICAL C HARA TERISTICS C SYMBOL PARAMETER I On-Channel Leakage Current (Note 6) ON LEAKAGE I Off-Channel Leakage Current (Note 6) OFF LEAKAGE V High Level Input Voltage IH V Low Level Input Voltage IL I High Level Input Current ...

Page 4

LTC1392 RECOM ENDED OPERATING CONDITIONS The denotes specifications which apply over the operating temperature range ( for commercial grade and – industrial grade). Note 1: Absolute maximum ratings are ...

Page 5

W U TYPICAL PERFORMANCE CHARACTERISTICS Thermal Response in Stirred Oil Bath TIME (SEC) 1392 G07 U ...

Page 6

LTC1392 TEST CIRCUITS Load Circuit for dDO 1. OUT 100pF Voltage Waveforms for D Rise and Fall Times, t OUT D OUT t r Load Circuit for t and t dis TEST POINT 3k D ...

Page 7

U U APPLICATIONS INFORMATION MSB-First Data (MSBF = suCS CLK t WAKEUP SEL1 SEL0 D IN START MSBF Hi OUT t SMPL CS t suCS CLK t WAKEUP SEL1 SEL0 D IN START ...

Page 8

LTC1392 U U APPLICATIONS INFORMATION Measurement Mode Selections The two bits of the input word following the Start Bit assign the measurement mode for the requested conversion. Table 1 shows the mode selections. Whenever there is a mode change from ...

Page 9

U U APPLICATIONS INFORMATION Differential Voltage Conversion The LTC1392 measures the differential input voltage through pins + V and – Input ranges of 0. full scale are available for differential voltage measure- ment with ...

Page 10

LTC1392 U TYPICAL APPLICATIONS System Monitor for Two Supply Voltages and Ambient Temperature 0.1 F 16V LTC1430 COMP SHDN R GND C C1 7.5k 220pF C C 4700pF 10k ...

Page 11

... FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. ...

Page 12

... Differential or 2-Channel Multiplexed, Single Supply SPI, QSPI Compatible, Single 5V or 3V, Low R 3 Pins, Current Out Pin 80 LTC1392 1 P1 MPU D IN OUT (e.g., 8051) 3 P1.3 CLK IN 4 P1.2 CS 1392 TA05 , Low Charge Injection ON 1392f LT/TP 0497 7K • PRINTED IN USA LINEAR TECHNOLOGY CORPORATION 1995 ...

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