LT1054/LT1054L
TYPICAL APPLICATIONS
Bipolar Supply Doubler
V
IN
3.5V TO 15V
+
–
+
+
10µF
100µF
+
+V
OUT
FB/SHDN
V
+
CAP
OSC
+
+
LT1054
GND
10µF
10µF
V
REF
100µF
+
–
CAP
V
OUT
–
+
100µF
V
+V
–V
= 3.5V TO 15V
IN
+
–V
OUT
≈ 2V – (V + 2V
)
OUT
IN
L
DIODE
≈ –2V + (V + 2V
)
OUT
IN
L
DIODE
V
= LT1054 VOLTAGE LOSS
L
LT1054 • TAO7
= 1N4001
5V to 12V Converter
V
IN
= 5V
+
5µF
1N914
≈ 12V
1N914
V
OUT
OUT
+
I
= 25mA
FB/SHDN
V
+
+
+
100µF
10µF
10µF
TO PIN 4
+
+
FB/SHDN
V
CAP
OSC
LT1054 #1
+
LT1054 #1
GND
+
10µF
CAP
OSC
V
REF
LT1054 #2
GND
20k
2N2219
1k
–
V
REF
CAP
V
OUT
100µF
5µF
V
OUT
≈ –12V
= 25mA
–
OUT
+
+
CAP
V
OUT
I
100µF
+
LT1054 • TAO8
Strain Gauge Bridge Signal Conditioner
5V
10k
10k
+
INPUT TTL
OR CMOS
LOW FOR ON
10k
ZERO
TRIM
10µF
40Ω
2N2907
5k
GAIN
TRIM
8
100k
100k
5k
0.022µF
1
–
–
6
5
2
1M
301k
A1
A2
7
1/2 LT1013+ 3
1/2 LT1013
+
10k
350Ω
4
200k
1µF
LT1054 • TAO9
+
FB/SHDN
V
5V
3k
+
A = 125 FOR 0V TO 3V OUT FROM FULL-SCALE
BRIDGE OUTPUT OF 24mV
CAP
OSC
2N2222
+
LT1054
GND
+
10µF
V
100µF
TANTALUM
REF
–
CAP
V
OUT
1954lfg
11
Linear [ Linear ]
