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Linear Technology Electronic Components Datasheet

LT1098 Datasheet

Micropower Sampling 8-Bit Serial I/O A/D Converters

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LTC1096/LTC1096L
LTC1098/LTC1098L
Micropower Sampling
8-Bit Serial I/O A/D Converters
FEATURES
n 80μA Maximum Supply Current
n 1nA Typical Supply Current in Shutdown
n 5V Operation (LTC1096/LTC1098)
n 3V Operation (LTC1096L/LTC1098L)(2.65V Min)
n Sample-and-Hold
n 16μs Conversion Time
n 33kHz Sample Rate
n ±0.5LSB Total Unadjusted Error Over Temp
n Direct 3-Wire Interface to Most MPU Serial Ports and
All MPU Parallel I/O Ports
n 8-Pin SO Plastic Package
APPLICATIONS
n Battery-Operated Systems
n Remote Data Acquisition
n Battery Monitoring
n Battery Gas Gauges
n Temperature Measurement
n Isolated Data Acquisition
L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
DESCRIPTION
The LTC®1096/LTC1096L/LTC1098/LTC1098L are
micropower, 8-bit A/D converters that draw only 80μA of
supply current when converting. They automatically power
down to 1nA typical supply current whenever they are not
performing conversions. They are packaged in 8-pin SO
packages and have both 3V (L) and 5V versions. These
8-bit, switched-capacitor, successive approximation ADCs
include sample-and-hold. The LTC1096/LTC1096L have a
single differential analog input. The LTC1098/LTC1098L
offer a software selectable 2-channel MUX.
On-chip serial ports allow efficient data transfer to a wide
range of microprocessors and microcontrollers over three
wires. This, coupled with micropower consumption, makes
remote location possible and facilitates transmitting data
through isolation barriers.
These circuits can be used in ratiometric applications or
with an external reference. The high impedance analog
inputs and the ability to operate with reduced spans (be-
low 1V full scale) allow direct connection to sensors and
transducers in many applications, eliminating the need
for gain stages.
TYPICAL APPLICATION
10μW, S8 Package, 8-Bit A/D
Samples at 200Hz and Runs Off a 5V Battery
1μF 5V
ANALOG INPUT
0V TO 5V RANGE
CS/
SHUTDOWN
VCC
+IN CLK
LTC1096
–IN DOUT
GND
VREF
MPU
(e.g., 8051)
P1.4
P1.3
P1.2
10968 TA01
Supply Current vs Sample Rate
1000
TA = 25°C
VCC = VREF = 5V
100
10
1
0.1
1 10 100
SAMPLE FREQUENCY, fSMPL (kHz)
10968 TA02
10968fc
1


Linear Technology Electronic Components Datasheet

LT1098 Datasheet

Micropower Sampling 8-Bit Serial I/O A/D Converters

No Preview Available !

LTC1096/LTC1096L
LTC1098/LTC1098L
ABSOLUTE MAXIMUM RATINGS
(Notes 1 and 2)
Supply Voltage (VCC) to GND ...................................12V
Voltage
Analog and Reference ................ –0.3V to VCC + 0.3V
Digital Inputs ........................................ –0.3V to 12V
Digital Outputs ........................... –0.3V to VCC + 0.3V
Power Dissipation ...............................................500mW
Storage Temperature Range................... –65°C to 150°C
Operating Temperature
LTC1096AC/LTC1096C/LTC1096LC/
LTC1098AC/LTC1098C/LTC1098LC .......... 0°C to 70°C
LTC1096AI/LTC1096I/LTC1096LI/
LTC1098AI/LTC1098I/LTC1098LI ......... –40°C to 85°C
Lead Temperature (Soldering, 10 sec.) ................. 300°C
PIN CONFIGURATION (Note 3)
LTC1096
CS/
SHUTDOWN
1
+IN 2
–IN 3
GND 4
TOP VIEW
8 VCC
7 CLK
6 DOUT
5 VREF
N8 PACKAGE
S8 PACKAGE
8-LEAD PLASTIC DIP 8-LEAD PLASTIC SOIC
TJMAX = 150°C, θJA = 130°C/W (N8)
TJMAX = 150°C, θJA = 175°C/W (S8)
LTC1098
CS/
SHUTDOWN
1
CH0 2
CH1 3
GND 4
TOP VIEW
8 VCC(VREF)
7 CLK
6 DOUT
5 DIN
N8 PACKAGE
S8 PACKAGE
8-LEAD PLASTIC DIP 8-LEAD PLASTIC SOIC
TJMAX = 150°C, θJA = 130°C/W (N8)
TJMAX = 150°C, θJA = 175°C/W (S8)
ORDER INFORMATION
LEAD FREE FINISH
LTC1096ACN8#PBF
LTC1096ACS8#PBF
LTC1096AIN8#PBF
LTC1096AIS8#PBF
LTC1096CN8#PBF
LTC1096CS8#PBF
LTC1096IN8#PBF
LTC1096IS8#PBF
LTC1096LCS8#PBF
LTC1096LIS8#PBF
LTC1098ACN8#PBF
LTC1098ACS8#PBF
LTC1098CN8#PBF
LTC1098CS8#PBF
LTC1098IN8#PBF
LTC1098IS8#PBF
LTC1098LCS8#PBF
LTC1098LIS8#PBF
TAPE AND REEL
LTC1096ACN8#TRPBF
LTC1096ACS8#TRPBF
LTC1096AIN8#TRPBF
LTC1096AIS8#TRPBF
LTC1096CN8#TRPBF
LTC1096CS8#TRPBF
LTC1096IN8#TRPBF
LTC1096IS8#TRPBF
LTC1096LCS8#TRPBF
LTC1096LIS8#TRPBF
LTC1098ACN8#TRPBF
LTC1098ACS8#TRPBF
LTC1098CN8#TRPBF
LTC1098CS8#TRPBF
LTC1098IN8#TRPBF
LTC1098IS8#TRPBF
LTC1098LCS8#TRPBF
LTC1098LIS8#TRPBF
PART MARKING*
LTC1096ACN8
1096A
LTC1096AIN8
1096AI
LTC1096CN8
1096
LTC1096IN8
1096I
1096L
1096LI
LTC1098ACN8
1098A
LTC1098CN8
1098
LTC1098IN8
1098I
1098L
1098LI
PACKAGE DESCRIPTION
8-Lead Plastic DIP
8-Lead Plastic SOIC
8-Lead Plastic DIP
8-Lead Plastic SOIC
8-Lead Plastic DIP
8-Lead Plastic SOIC
8-Lead Plastic DIP
8-Lead Plastic SOIC
8-Lead Plastic SOIC
8-Lead Plastic SOIC
8-Lead Plastic DIP
8-Lead Plastic SOIC
8-Lead Plastic DIP
8-Lead Plastic SOIC
8-Lead Plastic DIP
8-Lead Plastic SOIC
8-Lead Plastic SOIC
8-Lead Plastic SOIC
2
TEMPERATURE RANGE
0°C to 70°C
0°C to 70°C
–40°C to 85°C
–40°C to 85°C
0°C to 70°C
0°C to 70°C
–40°C to 85°C
–40°C to 85°C
0°C to 70°C
–40°C to 85°C
0°C to 70°C
0°C to 70°C
0°C to 70°C
0°C to 70°C
–40°C to 85°C
–40°C to 85°C
0°C to 70°C
–40°C to 85°C
10968fc


Part Number LT1098
Description Micropower Sampling 8-Bit Serial I/O A/D Converters
Maker Linear
Total Page 30 Pages
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