lt1993-2 Linear Technology Corporation, lt1993-2 Datasheet - Page 20

• Manufacturer Part Number: lt1993-2
• Description: 800mhz Low Distortion, Low Noise Differential Ampli? Er/ Adc Driver Av = 2v/v
• Manufacturer: Linear Technology Corporation

RELATED PARTS
LT1993-2
TYPICAL APPLICATIO
PART NUMBER
LT1993-4
LT1993-10
LT5514
LT6600-2.5
LT6600-5
LT6600-10
LT6600-20
20
TEST IN
V
OCM
–IN
+IN
J1
J2
J3
J6
ENABLE
GND
TP1
TP2
V
TP3
CC
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
1
1
1
0dB
0Ω
1Ω
R2
R1
2
1
5
4
R19
5
4
14k
1:4 Z-RATIO
C14
4.7µF
CIRCUITS
CIRCUITS
TCM 4-19
TCM 4-19
V
MINI-
R20
MINI-
DESCRIPTION
900MHz Differential Amplifi er/ADC Driver
700MHz Differential Amplifi er/ADC Driver
Ultralow Distortion IF Amplifi er/ADC Driver
Very Low Noise Differential Amplifi er and
2.5MHz Lowpass Filter
Very Low Noise Differential Amplifi er and
5MHz Lowpass Filter
Very Low Noise Differential Amplifi er and
10MHz Lowpass Filter
Very Low Noise Differential Amplifi er and
20MHz Lowpass Filter
11k
CC
1:4
T1
T3
R4
[1]
R3
[1]
2
1
V
●
CC
FAX: [phone]
1
3
1
3
C15
1µF
2
2
C19, 0.1µF
1
1
1
0.1µF
0.1µF
0.1µF
R18
0Ω
C21
C2
C1
1
GND
SW1
2
2
2
0.01µF
2
1
NOTES: UNLESS OTHERWISE SPECIFIED,
[1] DO NOT STUFF.
0Ω
0Ω
C10
R6
R5
+6dB
2
2
1
V
U
3
V
CC
CC
R17
0Ω
13
14
15
16
1000pF
●
www.linear.com
–INB
–INA
+INB
+INA
C9
V
12
CC
V
1
2
1
V
CCC
R16
EEC
R21
0Ω
[1]
Demo Circuit DC800A Schematic
V
11
ENABLE
2
2
1
OCM
LT1993-2
0.1µF
1
C7
0.01µF
C6
V
3
2
1
COMMENTS
A
A
Digitally Controlled Gain Output IP3 47dBm at 100MHz
86dB S/N with 3V Supply, SO-8 Package
82dB S/N with 3V Supply, SO-8 Package
82dB S/N with 3V Supply, SO-8 Package
76dB S/N with 3V Supply, SO-8 Package
10
CCA
2
(AC Test Circuit)
–OUTFILTERED
+OUTFILTERED
V
V
V
V
CCB
CC
= 4V/V, NF = 14.5dB, OIP3 = 40dBm at 70MHz
= 10V/V, NF = 12.7dB, OIP3 = 40dBm at 70MHz
C12
1000pF
0.1µF
1
C5
V
2
1
9
V
4
EEA
EEB
2
R22
–OUT
+OUT
[1]
C17
1000pF
2
1
V
CC
8
7
6
5
C13
0.01µF
24.9Ω
24.9Ω
R10
R8
[1]
R7
[1]
R9
2
1
C18
0.01µF
L1
[1]
2
1
C20, 0.1µF
0.1µF
1
0.1µF
1
1
C8
[1]
C4
C3
2
2
2
1
2
1
2
+10.8dB
2
C11
[1]
C16
[1]
3
1
CIRCUITS
TCM 4-19
MINI-
4:1
T4
75Ω
75Ω
R12
R11
R15
[1]
© LINEAR TECHNOLOGY CORPORATION 2005
4
5
+6dB
2
1
LT/LT 1005 REV A • PRINTED IN USA
2
J7
TEST OUT
C22
0.1µF
3
1
1:4 Z-RATIO
CIRCUITS
TCM 4-19
MINI-
T2
R14
R13
0Ω
[1]
4
5
19932 TA02
0dB
J4
–OUT
J5
+OUT
19932fa