LT1782
16
1782fc
LinearTechnology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com
LINEAR TECHNOLOGY CORPORATION 1999
LT 1010 REV C PRINTED IN USA
RELATED PARTS
TYPICAL APPLICATIONS
Current Source
Programmable Gain, AV = 2, AV = 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 210A 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 50A per Amplifier,
Rail-to-Rail Input and Output , 200kHz GBW
LT1636
Single Over-The-Top Micropower Rail-to-Rail Input
and Output Op Amp
55A Supply Current, VCM Extends 44V Above VEE, Independent of VCC,
MSOP Package, Shutdown Function
LT1638/LT1639
Dual/Quad, 1.2MHz, 0.4V/s, 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
VCC
IOUT =
2N3906
1.25V
R1
–
+
LT1782
VCC
SHDN
IN
OUT
1782 TA05
VEE
R2
9.09k
R1
10k
R3
1k
–
+
LT1784
VCC
AV = 2
AV = 20
SHDN
VEE
(
)
AV = 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
AV = 20
AV = 2