LT1494/LT1495/LT1496
1.5m A Max, Single, Dual
and Quad Over-The-Top Precision
Rail-to-Rail Input and Output Op Amps
FEATURES
DESCRIPTIO
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Low Supply Current: 1.5m A Max The LT 1494/LT1495/LT1496 are the lowest power
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(I 1.5m A) op amps with precision specifications. The
Rail-to-Rail Input and Output
S
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extremely low supply current is combined with excellent
Low Offset Voltage: 375m V Max
n amplifier specifications: input offset voltage is 375m V
Operating Temperature Range: 40 C to 125 C
TM
+
n maximum with a typical drift of only 0.4m V/ C, input offset
Over-The-Top Inputs Operate Above V
current is 100pA maximum. A minimum open-loop gain
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Wide Supply Range: 2.2V to 36V
(A ) of 100V/mV ensures that gain errors are small. The
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VOL
Single Supply Input Range: 0.3V to 36V
device characteristics change little over the supply range
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Low Input Bias Current: 250pA
of 2.2V to 15V. Supply rejection is 90dB and the common
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Low Input Offset Current: 20pA
mode rejection ratio is 90dB. Operation is specified for 3V,
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High A : 100V/mV Minimum Driving 100kW Load
VOL
5V and 15V supplies. Reverse battery protection
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Output Sources and Sinks 500m A Load Current
(18V min) and inputs that operate above the positive
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Reverse Battery Protected to 18V
supply make the LT1494/LT1495/LT1496 easy to use in
harsh environments.
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APPLICATIO S
The low bias currents and offset current of the amplifier
permit the use of megohm level source resistors without
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Battery- or Solar-Powered Systems
introducing significant errors. Voltage noise at 4m V is
P-P
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Portable Instrumentation
remarkably low considering the low supply current.
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Remote Sensor Amplifier
The LT1494 is available in the 8-Pin MSOP, PDIP and SO
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Micropower Filter
packages.The LT1495 is available in plastic 8-Pin PDIP
and SO packages with the standard dual op amp pinout.
, LTC and LT are registered trademarks of Linear Technology Corporation.
Over-The-Top is a trademark of Linear Technology Corporation.
The LT1496 is available in 14-Pin SO and PDIP packages.
TYPICAL APPLICATION
Micropower Integrating Current Sense TC V Distribution
OS
RESET
30
100 AMPLIFIERS
V = 2.5V
S
0.1F
25
40C TO 85C
V
CC
R
I
20
1M
R
S
1/2 LT1495 15
0.1
1M
1/2 LT1495 V
+
O
10
I
L
+
5
10M 10M
LOAD
1495 TA01
V
CC
200k 0
2.0 1.6 1.2 0.8 0.4 0 0.4 0.8 1.2 1.6 2.0
TC V (V/C)
OS
OUTPUT SWITCHES 1495 TA02
R
I
WHEN I dt = 0.98 V C = (4.9A)(SEC) FOR V = 5V
L CC CC
()
R
S
I = 3A DURING INTEGRATION; I = 5A END OF INTEGRATION
S S
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UNITS
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ULT1494/LT1495/LT1496
ABSOLUTE MAXIMUM RATINGS
(Note 1)
+
Total Supply Voltage (V to V ) .............................. 36V Specified Temperature Range (Note 3)
Differential Input Voltage ......................................... 36V LT1494C/LT1495C/LT1496C .............. 40 C to 85 C
Input Current ...................................................... 10mA LT1494I/LT1495I/LT1496I ................. 40 C to 85 C
Output Short-Circuit Duration .......................Continuous LT1494H/LT1495H/LT1496H ........... 40 C to 125 C
Operating Temperature Range (Note 2) Storage Temperature Range ................. 65 C to 150 C
LT1494C/LT1495C/LT1496C .............. 40 C to 85 C Junction Temperature........................................... 150 C
LT1494I/LT1495I/LT1496I ................. 40 C to 85 C Lead Temperature (Soldering, 10 sec).................. 300 C
LT1494H/LT1495H/LT1496H ........... 40 C to 125 C
PACKAGE/ORDER INFORMATION
ORDER PART
ORDER PART
TOP VIEW
NUMBER
NUMBER
NC 1 8 NC
LT1494CN8
TOP VIEW LT1494CMS8
+
IN 2 7 V
LT1494CS8
NC 1 8 NC
LT1494IMS8
+
IN 2 7 V
+IN 3 6 OUT
LT1494IN8
+IN 3 6 OUT
V 4 5 NC
V 5 NC LT1494IS8
4
LT1494HS8
MS8 PACKAGE
N8 PACKAGE S8 PACKAGE
8-LEAD PLASTIC MSOP
8-LEAD PDIP 8-LEAD PLASTIC SO
S8 PART MARKING
MS8 PART MARKING
T = 150 C, q = 250 C/ W
JMAX JA
T = 150 C, q = 130 C/ W (N8)
JMAX JA
T = 150 C, q = 190 C/ W (S8)
JMAX JA
1494
LTFF
1494I
LTFG
1494H
ORDER PART
ORDER PART
TOP VIEW
NUMBER NUMBER
TOP VIEW
OUT A 1 14 OUT D
LT1495CN8
+
IN A 2 13 IN D LT1496CN
OUT A 1 V
8
A D
LT1495CS8
+IN A 3 12 +IN D LT1496CS
IN A 2 7 OUT B
A LT1495IN8 +
V 4 11 V LT1496IN
+IN A 3 6 IN B
LT1495IS8
B
+IN B 5 10 +IN C LT1496IS
V 4 +IN B
5
B C
LT1495HS8
IN B 6 9 IN C LT1496HS
N8 PACKAGE S8 PACKAGE
OUT B 7 8 OUT C
S8 PART MARKING
8-LEAD PDIP 8-LEAD PLASTIC SO
N PACKAGE S PACKAGE
T = 150 C, q = 130 C/ W (N8)
JMAX JA
1495 14-LEAD PDIP 14-LEAD PLASTIC SO
T = 150 C, q = 190 C/ W (S8)
JMAX JA
1495I T = 150 C, q = 130 C/ W (N)
JMAX JA
T = 150 C, q = 160 C/ W (S)
JMAX JA
1495H
Consult LTC Marketing for parts specified with wider operating temperature ranges.
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