Datasheet > LT1494

LT1494

更新时间： 2023-12-20 18:46:03

品牌	Logo	应用领域
亚德诺 - ADI		放大器运算放大器
页数	文件大小	规格书
16页	258K
描述
1.5μA 最大值、单路高精度轨至轨输入和输出运算放大器

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LT1494 数据手册

LT1494/LT1495/LT1496

1.5µA Max, Single, Dual

and Quad Over-The-Top Precision

Rail-to-Rail Input and Output Op Amps

FEATURES

DESCRIPTIO

The LT^®1494/LT1495/LT1496 are the lowest power

(I_S≤ 1.5µA) op amps with precision specifications. The

extremely low supply current is combined with excellent

■

Low Supply Current: 1.5µA Max

■

Rail-to-Rail Input and Output

■

Low Offset Voltage: 375µV Max

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

(A_VOL) of 100V/mV ensures that gain errors are small. The

device characteristics change little over the supply range

of2.2Vto±15V. Supplyrejectionis90dBandthecommon

moderejectionratiois90dB. Operationisspecifiedfor3V,

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.

Operating Temperature Range: –40°C to 125°C

Over-The-Top^TMInputs 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 A_VOL: 100V/mV Minimum Driving 100kΩ Load

Output Sources and Sinks 500µA Load Current

Reverse Battery Protected to 18V

APPLICATIO S

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 4µV_P-Pis

remarkably low considering the low supply current.

■

Battery- or Solar-Powered Systems

■

Portable Instrumentation

■

Remote Sensor Amplifier

Micropower Filter

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.

■

, LTC and LT are registered trademarks of Linear Technology Corporation.

Over-The-Top is a trademark of Linear Technology Corporation.

TYPICAL APPLICATION

Micropower Integrating Current Sense

TC V_OSDistribution

RESET

100 AMPLIFIERS

= ±2.5V

0.1µF

–40°C TO 85°C

–

1/2 LT1495

0.1Ω

1/2 LT1495

10M

LOAD

1495 TA01

200k

–2.0 –1.6 –1.2 –0.8 –0.4

0.4 0.8 1.2 1.6 2.0

TC V (µV/°C)

OUTPUT SWITCHES

WHEN I dt = 0.98 V

1495 TA02

C = (4.9A)(SEC) FOR V = 5V

(

)

= 3µA DURING INTEGRATION; I = 5µA END OF INTEGRATION

12 3 4 5 6 7...16

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型号	品牌	描述	获取价格	数据表
LT1494_15	Linear	1.5A Max, Single, Dual and Quad Over-The-Top Precision Rail-to-Rail Input and Output Op Am	获取价格
LT1494CMS8	Linear	1.5UA Max, Single, Dual and Quad Over-The-Top Precision Rail-to-Rail Input and Output Op A	获取价格
LT1494CMS8#PBF	Linear	LT1494 - 1.5uA Max, Single, Dual and Quad Precision Rail-to-Rail Input and Output Op Amps;	获取价格
LT1494CMS8#TRPBF	Linear	LT1494 - 1.5uA Max, Single, Dual and Quad Precision Rail-to-Rail Input and Output Op Amps;	获取价格
LT1494CN8	Linear	1.5UA Max, Single, Dual and Quad Over-The-Top Precision Rail-to-Rail Input and Output Op A	获取价格
LT1494CN8#PBF	Linear	LT1494 - 1.5uA Max, Single, Dual and Quad Precision Rail-to-Rail Input and Output Op Amps;	获取价格

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