LT1991 Linear Technology, LT1991 Datasheet - Page 28

• Manufacturer Part Number: LT1991
• Description: Precision / 100uA Gain Selectable Amplifier
• Manufacturer: Linear Technology

LT1991
TYPICAL APPLICATION
RELATED PARTS
PART NUMBER
LT1990
LT1991
LT1995
LT6010/LT6011/LT6012 Single/Dual/Quad 135μA 14nV/√Hz Rail-to-Rail Out
LT6013/LT6014
LTC6910-X
28
V
= 14V to 53V
IN
*SHORT R2 FOR LOWEST OUTPUT
V
V
OFFSET CURRENT. INCLUDE R2 FOR
HIGHEST OUTPUT IMPEDANCE.
IN
IN
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
–
+
Ultra-Stable Precision Attenuator
R2*
10k
Bidirectional Current Source
10
10
8
9
1
2
3
8
9
1
2
3
DESCRIPTION
High Voltage, Gain Selectable Difference Amplifi er
Precision Gain Selectable Difference Amplifi er
High Speed, Gain Selectable Difference Amplifi er
Precision Op Amp
Single/Dual 145μA 8nV/√Hz Rail-to-Rail Out
Precision Op Amp
Programmable Gain Amplifi ers
●
M9
M3
M1
P1
P3
P9
M9
M3
M1
P1
P3
P9
FAX: [phone]
LT1991
LT1991
V
S
4
4
–
V
5V
S
7
+
7
REF
5
5
6
●
6
www.linear.com
R1
10k
I
LOAD
V
OUT
=
=
V
V
13
IN
IN
10kΩ
+ –
V
IN
–
COMMENTS
±250V Common Mode, Micropower, Pin Selectable Gain = 1, 10
Micropower, Pin Selectable Gain = –13 to 14
30MHz, 1000V/μs, Pin Selectable Gain = –7 to 8
Similar Op Amp Performance as Used in LT1991 Difference Amplifi er
Lower Noise A
3 Gain Confi gurations, Rail-to-Rail Input and Output
V
Single Supply AC Coupled Amplifi er
5V
± 10V
≥ 5 Version of LT1991 Type Op Amp
LT1790 –2.5
V
V
1μF
CC
4
IN
IN
1
Analog Level Adaptor
0.1μF
2
6
10
10
8
9
1
2
3
8
9
1
2
3
1μF
© LINEAR TECHNOLOGY CORPORATION 2006
M9
M3
M1
P1
P3
P9
M9
M3
M1
P1
P3
P9
BW = 7Hz TO 32kHz
V
S
–5V
LT1991
LT1991
= 2.7V TO 36V
GAIN = 12
www.DataSheet4U.com
4
4
5V
LT 1007 REV G • PRINTED IN USA
7
7
REF
5
5
6
6
1991 TA03
0-4V
V
OUT
1991 TA04
OUT
1991fg