LTC1096AI(RevB) View Datasheet(PDF) - Linear Technology
Part Name
Description
Manufacturer
LTC1096AI Datasheet PDF : 28 Pages
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LTC1096/LTC1096L
LTC1098/LTC1098L
TYPICAL APPLICATI
A/D Conversion for 3V Systems
The LTC1096/LTC1098 are ideal for 3V systems. Figure 17
shows a 3V to 6V battery current monitor that draws only
70µA from the battery it monitors. The battery current is
sensed with the 0.02Ω resistor and amplified by the
LT1178. The LTC1096 digitizes the amplifier output and
sends it to the microprocessor in serial format. The
LT1004 provides the full-scale reference for the ADC. The
other half of the LTC1178 is used to provide low battery
detection. The circuit’s 70µA supply current is dominated
by the op amps and the reference. The circuit can be
located near the battery and data transmitted serially to
the microprocessor.
0.1µF
3V TO 6V
0.1µF
750k
24.9k
L
O
A
0.02Ω FOR 2A FULL SCALE
D
0.2Ω FOR 0.2A FULL SCALE
+
1/2 LT1178
–
73.2k 470k
CS
+
– LTC1096
GND
VCC
CLK
DOUT
VREF
LT1004-1.2
20M
+
1/2 LT1178
470k –
TO µP
LO BATTERY
LTC1096/8 • F17
Figure 17. This 0A to 2A Battery Current Monitor Draws Only 70µA from a 3V Battery
RELATED PARTS
PART NUMBER
LTC1196/LTC1198
LTC1286/LTC1298
LTC1285/LTC1298
LTC1400
LTC1594/LTC1598
LTC1594L/LTC1598L
DESCRIPTION
8-Pin SO, 1Msps, 8-Bit ADCs
8-Pin SO, 5V Micropower, 12-Bit ADCs
8-Pin SO, 3V Micropower, 12-Bit ADCs
5V High Speed,Serial 12-Bit ADC
4- and 8-Channel, 5V Micropower, 12-Bit ADCs
4- and 8-Channel, 3V Micropower, 12-Bit ADCs
COMMENTS
Low Power, Small Size, Low Cost
1- or 2-Channel, Auto Shutdown
1- or 2-Channel, Auto Shutdown
400ksps, Complete with VREF, CLK, Sample-and-Hold
Low Power, Small Size, Low Cost
Low Power, Small Size, Low Cost
28 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417q (408)432-1900
FAX: (408) 434-0507qTELEX: 499-3977q www.linear-tech.com
10968fb LT/TP 0397 5K REV B • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 1994
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