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Features: Low Supply Current: 1.5µA Max Rail-to-Rail Input and Output Low Offset Voltage: 375µV Max Operating Temperature Range: 40°C to 125°C Over-The-TopTM Inputs Operate Above V+ Wide Supply Range: 2.2V to 36V Single Supply Input Range: 0.3V to 36VLow Input Bias Current: 250pA Low ...

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SeekIC No. : 004400627 Detail

LT1494: Features: Low Supply Current: 1.5µA Max Rail-to-Rail Input and Output Low Offset Voltage: 375µV Max Operating Temperature Range: 40°C to 125°C Over-The-TopTM Inputs Operate Above V+ Wid...

LT1494 Data Sheet

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Part Number:: LT1494
Supply Ability:: 5000

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Upload time: 2024/12/21

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Product Details

Description

Features:

Low Supply Current: 1.5µA Max
Rail-to-Rail Input and Output
Low Offset Voltage: 375µV Max
Operating Temperature Range: 40°C to 125°C
Over-The-TopTM Inputs Operate Above V⁺ Wide Supply Range: 2.2V to 36V
Single Supply Input Range: 0.3V to 36V
Low Input Bias Current: 250pA
Low Input Offset Current: 20pA
High AVOL: 100V/mV Minimum Driving 100kΩ Load
Output Sources and Sinks 500µA Load Current
Reverse Battery Protected to 18V

Application

Battery- or Solar-Powered Systems
Portable Instrumentation
Remote Sensor Amplifier
Micropower Filter

Pinout

Connection Diagram

Specifications

Total Supply Voltage (V⁺ to V) .............................. 36V
Differential Input Voltage ......................................... 36V
Input Current ...................................................... ±10mA
Output Short-Circuit Duration ........................Continuous
Operating Temperature Range (Note 2)
LT1494C/LT1495C/LT1496C ................ 40°C to 85°C
LT1494I/LT1495I/LT1496I ................... 40°C to 85°C
LT1494H/LT1495H/LT1496H .............. 40°C to 125°C
Specified Temperature Range (Note 3)
LT1494C/LT1495C/LT1496C ................ 40°C to 85°C
LT1494I/LT1495I/LT1496I ................... 40°C to 85°C
LT1494H/LT1495H/LT1496H .............. 40°C to 125°C
Storage Temperature Range ............. 65°C to 150°C
Junction Temperature........................................... 150°C
Lead Temperature (Soldering, 10 sec) ................. 300°C

Description

The LT^®1494/LT1495/LT1496 are the lowest power(IS 1.5µA) op amps with precision specifications. Theextremely low supply current is combined with excellentamplifier specifications: input offset voltage is 375µVmaximum with a typical drift of only 0.4µV/°C, input offsetcurrent is 100pA maximum. A minimum open-loop gain(AVOL) of 100V/mV ensures that gain errors are small. Thedevice characteristics change little over the supply rangeof 2.2V to ±15V. Supply rejection is 90dB and the commonmode rejection ratio is 90dB. Operation is specified for 3V,5V and ±15V supplies. Reverse battery protection(18V␣ min) and inputs that operate above the positivesupply make the LT1494/LT1495/LT1496 easy to use inharsh environments.

The low bias currents and offset current of the amplifierpermit the use of megohm level source resistors withoutintroducing significant errors. Voltage noise at 4µVP-P isremarkably low considering the low supply current.

The LT1494 is available in the 8-Pin MSOP, PDIP and SOpackages.The LT1495 is available in plastic 8-Pin PDIPand SO packages with the standard dual op amp pinout.

The LT1496 is available in 14-Pin SO and PDIP packages.

LT1494

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