參數(shù)資料
型號: LTC1098L
廠商: Linear Technology Corporation
元件分類: 串行ADC
英文描述: Micropower Sampling 8-Bit I/O A/D Converters(3V,微功耗,采樣8位串行I/O模數(shù)轉(zhuǎn)換器)
中文描述: 微采樣8位I /辦公自動化/ D轉(zhuǎn)換器(3V供電,微功耗,采樣8位串行的I / O模數(shù)轉(zhuǎn)換器)
文件頁數(shù): 28/28頁
文件大小: 368K
代理商: LTC1098L
28
LTC1096/LTC1096L
LTC1098/LTC1098L
LINEAR TECHNOLOGY CORPORATION 1994
10968fb LT/TP 0397 5K REV B PRINTED IN USA
U
A
O
PPLICATI
TYPICAL
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
G
(408) 432-1900
FAX: (408) 434-0507
G
TELEX: 499-3977
G
www.linear-tech.com
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 V
REF
, CLK, Sample-and-Hold
Low Power, Small Size, Low Cost
Low Power, Small Size, Low Cost
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
μ
A from the battery it monitors. The battery current is
sensed with the 0.02
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 70
μ
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.
Figure 17. This 0A to 2A Battery Current Monitor Draws Only 70
μ
A from a 3V Battery
+
750k
0.1
μ
F
0.02
FOR 2A FULL SCALE
0.2
FOR 0.2A FULL SCALE
24.9k
L
O
A
D
1/2 LT1178
LTC1096
CS
GND
V
CC
CLK
D
OUT
V
REF
LT1004-1.2
73.2k
470k
20M
470k
LO BATTERY
0.1
μ
F
+
3V TO 6V
TO
μ
P
+
1/2 LT1178
LTC1096/8 F17
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