LTC1096 Linear Technology, LTC1096 Datasheet - Page 28

• Manufacturer Part Number: LTC1096
• Description: Micropower Sampling 8-Bit Serial I/O A/D Converters
• Manufacturer: Linear Technology

LTC1096/LTC1096L
LTC1098/LTC1098L
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
70 A from the battery it monitors. The battery current is
sensed with the 0.02
LT1178. The LTC1096 digitizes the amplifier output and
sends it to the microprocessor in serial format. The
TYPICAL
28
RELATED PARTS
PART NUMBER
LTC1196/LTC1198
LTC1286/LTC1298
LTC1285/LTC1298
LTC1400
LTC1594/LTC1598
LTC1594L/LTC1598L
L
O
A
D
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417 [phone]
FAX: [phone] TELEX: 499-3977 www.linear-tech.com
0.02 FOR 2A FULL SCALE
0.2 FOR 0.2A FULL SCALE
3V TO 6V
A
PPLICATI
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
24.9k
Figure 17. This 0A to 2A Battery Current Monitor Draws Only 70 A from a 3V Battery
resistor and amplified by the
O
0.1 F
750k
U
+
–
1/2 LT1178
CS
GND
+
–
LTC1096
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 70 A 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.
LT1004-1.2
D
V
CLK
V
OUT
REF
CC
COMMENTS
Low Power, Small Size, Low Cost
1- or 2-Channel, Auto Shutdown
1- or 2-Channel, Auto Shutdown
400ksps, Complete with V
Low Power, Small Size, Low Cost
Low Power, Small Size, Low Cost
0.1 F
73.2k
470k
470k
REF
+
–
1/2 LT1178
10968fb LT/TP 0397 5K REV B • PRINTED IN USA
, CLK, Sample-and-Hold
LINEAR TECHNOLOGY CORPORATION 1994
20M
LO BATTERY
LTC1096/8 • F17
TO P