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Linear Technology Electronic Components Datasheet

LT1495 Datasheet

Rail-to-Rail Input and Output Op Amps

No Preview Available !

LT1494/LT1495/LT1496
1.5µA Max, Single, Dual
and Quad Over-The-Top Precision
Rail-to-Rail Input and Output Op Amps
FEATURES
s Low Supply Current: 1.5µA Max
s Rail-to-Rail Input and Output
s Low Offset Voltage: 375µV Max
s Operating Temperature Range: – 40°C to 125°C
s Over-The-TopTM Inputs Operate Above V+
s Wide Supply Range: 2.2V to 36V
s Single Supply Input Range: – 0.3V to 36V
s Low Input Bias Current: 250pA
s Low Input Offset Current: 20pA
s High AVOL: 100V/mV Minimum Driving 100kLoad
s Output Sources and Sinks 500µA Load Current
s Reverse Battery Protected to 18V
U
APPLICATIO S
s Battery- or Solar-Powered Systems
s Portable Instrumentation
s Remote Sensor Amplifier
s Micropower Filter
, LTC and LT are registered trademarks of Linear Technology Corporation.
Over-The-Top is a trademark of Linear Technology Corporation.
DESCRIPTIO
The LT®1494/LT1495/LT1496 are the lowest power
(IS 1.5µA) op amps with precision specifications. The
extremely low supply current is combined with excellent
amplifier specifications: input offset voltage is 375µV
maximum with a typical drift of only 0.4µV/°C, input offset
current is 100pA maximum. A minimum open-loop gain
(AVOL) of 100V/mV ensures that gain errors are small. The
device characteristics change little over the supply range
of 2.2V to ±15V. Supply rejection is 90dB and the common
mode rejection ratio is 90dB. Operation is specified for 3V,
5V and ±15V supplies. Reverse battery protection
(–18V␣ min) and inputs that operate above the positive
supply make the LT1494/LT1495/LT1496 easy to use in
harsh environments.
The low bias currents and offset current of the amplifier
permit the use of megohm level source resistors without
introducing significant errors. Voltage noise at 4µVP-P is
remarkably low considering the low supply current.
The LT1494 is available in the 8-Pin MSOP, PDIP and SO
packages.The LT1495 is available in plastic 8-Pin PDIP
and SO packages with the standard dual op amp pinout.
The LT1496 is available in 14-Pin SO and PDIP packages.
TYPICAL APPLICATION
Micropower Integrating Current Sense
RESET
VCC RI
1M
RS
0.11M
IL
0.1µF
1/2 LT1495
+
LOAD
10M
VCC
200k
1/2 LT1495
+
10M
VO
1495 TA01
( )OUTPUT SWITCHES
WHEN ILdt = 0.98 VCC
RI
RS
C = (4.9A)(SEC) FOR VCC = 5V
IS = 3µA DURING INTEGRATION; IS = 5µA END OF INTEGRATION
TC VOS Distribution
30
100 AMPLIFIERS
25
VS = ±2.5V
–40°C TO 85°C
20
15
10
5
0
– 2.0 –1.6 –1.2 –0.8 –0.4 0 0.4 0.8 1.2 1.6 2.0
TC VOS (µV/°C)
1495 TA02
1


Linear Technology Electronic Components Datasheet

LT1495 Datasheet

Rail-to-Rail Input and Output Op Amps

No Preview Available !

LT1494/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
NUMBER
TOP VIEW
NC 1
–IN 2
+IN 3
V4
8 NC
7 V+
6 OUT
5 NC
MS8 PACKAGE
8-LEAD PLASTIC MSOP
TJMAX = 150°C, θJA = 250°C/ W
LT1494CMS8
LT1494IMS8
MS8 PART MARKING
LTFF
LTFG
OUT A 1
–IN A 2
+IN A 3
V4
TOP VIEW
A
B
8 V+
7 OUT B
6 –IN B
5 +IN B
N8 PACKAGE
8-LEAD PDIP
S8 PACKAGE
8-LEAD PLASTIC SO
ORDER PART
NUMBER
LT1495CN8
LT1495CS8
LT1495IN8
LT1495IS8
LT1495HS8
S8 PART MARKING
TJMAX = 150°C, θJA = 130°C/ W (N8)
TJMAX = 150°C, θJA = 190°C/ W (S8)
1495
1495I
1495H
Consult LTC Marketing for parts specified with wider operating temperature ranges.
TOP VIEW
NC 1
–IN 2
+IN 3
V4
8 NC
7 V+
6 OUT
5 NC
N8 PACKAGE
8-LEAD PDIP
S8 PACKAGE
8-LEAD PLASTIC SO
TJMAX = 150°C, θJA = 130°C/ W (N8)
TJMAX = 150°C, θJA = 190°C/ W (S8)
TOP VIEW
OUT A 1
–IN A 2
+IN A 3
V+ 4
+IN B 5
–IN B 6
OUT B 7
A
B
14 OUT D
13 –IN D
D
12 +IN D
11 V
10 +IN C
C
9 –IN C
8 OUT C
N PACKAGE
14-LEAD PDIP
S PACKAGE
14-LEAD PLASTIC SO
TJMAX = 150°C, θJA = 130°C/ W (N)
TJMAX = 150°C, θJA = 160°C/ W (S)
ORDER PART
NUMBER
LT1494CN8
LT1494CS8
LT1494IN8
LT1494IS8
LT1494HS8
S8 PART MARKING
1494
1494I
1494H
ORDER PART
NUMBER
LT1496CN
LT1496CS
LT1496IN
LT1496IS
LT1496HS
2


Part Number LT1495
Description Rail-to-Rail Input and Output Op Amps
Maker Linear Technology
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LT1495 Datasheet PDF






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