Datasheet
18
LT1251/LT1256
TYPICAL APPLICATIONS
U
R9
1.5k
1251/56 TA14a
2
8
V
IN
C2
100pF
C5
50pF
C1
0.001µF
14
13
12
2.5V
1053
1
V
C
V
C
R
C
R
FS
V
FS
LT1256
–
+
–
+
2
1
R7
150Ω
R8
910Ω
R10
1.5k
R4
1k
R11
150Ω
R2
1k
R1
470Ω
R5
430Ω
R6
430Ω
R3
470Ω
C3, 100pF
C4
0.002µF
R12, 10k
–
+
1/2
LT1253
C'1
0.001µF
R'9
1.5k
2
8
C
'2
100pF
C
'5
50pF
14
13
12
2.5V
1053
1
V
C
V
C
R
C
R
FS
V
FS
LT1256
–
+
–
+
2
1
R'7
150Ω
R'8
910Ω
R'10
1.5k
R'4
1k
R'11
150Ω
R'2
1k
R'5
430Ω
R'6
430Ω
R'3
470Ω
C'3, 100pF
C
'4
0.002µF
R
'12, 10k
–
+
1/2
LT1253
C''1
0.001µF
R''9
1.5k
2
8
C
''2
100pF
C
''5
50pF
14
13
12
2.5V
1053
1
V
C
V
C
R
C
R
FS
V
FS
LT1256
–
+
–
+
2
1
R''7
150Ω
R''8
910Ω
R''10
1.5k
R''4
1k
R''11
150Ω
75Ω
V
OUT
1k
10k
R''2
1k
R''5
430Ω
R''6
430Ω
R''3
470Ω
C''3, 100pF
C
''4
0.002µF
R
''12, 10k
1k
–
+
1/2
LT1253
1000pF
–
+
1/2
LT1253
3.58MHz Phase Shifter
CONTROL VOLTAGE, V
C
(V)
0 0.5 1.0
NORMALIZED GAIN (V/V)
PHASE (DEG)
1.00
0.98
0.96
0.94
420
360
300
240
180
120
60
0
1251/56 TA14b
1.5 2.0
2.5
GAIN
PHASE