Datasheet

LT1782
16
1782fc
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
●
FAX: [phone]
●
www.linear.com
 LINEAR TECHNOLOGY CORPORATION 1999
LT 1010 REV C • PRINTED IN USA
RELATED PARTS
TYPICAL APPLICATIONS
Current Source
Programmable Gain, A
V
= 2, A
V
= 20, 100kHz Amplifier Programmable Gain Amplifier Frequency Response
PART NUMBER DESCRIPTION COMMENTS
LT1783 Micropower Over-The-Top SOT-23 Rail-to-Rail Input and
Output Op Amp
SOT-23 Package, Micropower 210µA per Amplifier, Rail-to-Rail Input and
Output, 1.25MHz GBW
LT1490/LT1491 Dual/Quad Over-The-Top Micropower Rail-to-Rail Input
and Output Op Amps
Single Supply Input Range: –0.4V to 44V, Micropower 50µA per Amplifier,
Rail-to-Rail Input and Output , 200kHz GBW
LT1636 Single Over-The-Top Micropower Rail-to-Rail Input
and Output Op Amp
55µA Supply Current, V
CM
Extends 44V Above V
EE
, Independent of V
CC
,
MSOP Package, Shutdown Function
LT1638/LT1639 Dual/Quad, 1.2MHz, 0.4V/µs, Over-The-Top Micropower
Rail-to-Rail Input and Output Op Amps
170mA Supply Current, Single Supply Input Range: –0.4V to 44V,
Rail-to-Rail Input and Output
–
+
LT1782
R1
LT1634-1.25
1782 TA04
V
CC
I
OUT
=
2N3906
1.25V
R1
–
+
LT1782
V
CC
SHDN
IN
OUT
1782 TA05
V
EE
R2
9.09k
R1
10k
R3
1k
–
+
LT1784
V
CC
V
CC
A
V
= 2A
V
= 20
SHDN
V
EE
( )
A
V
= 1+
R1 + R2
R3
( )
OR 1+
R1
R2 + R3
FREQUENCY (Hz)
GAIN (dB)
30
25
20
15
10
5
0
–5
–10
–15
–20
1k 100k 1M 10M
1782 TA06
10k
A
V
= 20
A
V
= 2