Datasheet > LT1673

LT1673

更新时间： 2024-11-17 11:42:55

品牌	Logo	应用领域
凌特 - Linear		运算放大器输出元件输入元件
页数	文件大小	规格书
12页	207K
描述
2MMax, AV=>5 SINGLE, DUAL AND QUAD OVER-THE-TOP PRECISION RAIL-TO-RAIL INPUT AND OUTPUT OP AMPS

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中文翻译

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LT1673 数据手册

LT1672/LT1673/LT1674

2µA Max, A_V≥ 5 Single, Dual

and Quad Over-The-Top Precision

Rail-to-Rail Input and Output Op Amps

FEATURES

DESCRIPTIO

The LT^®1672/LT1673/LT1674 are ultralow power

■

Gain of 5 Stable

■

(I_S≤ 2µA) decompensated (A_V≥ 5) op amps with preci-

sion 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

minimumopen-loopgain(A_VOL)of100V/mVensuresthat

gain errors are small. The devices’ characteristics change

little over the supply range of 2.2V to ±15V. Supply

rejection is 90dB and the common mode rejection ratio is

90dB. Operationisspecifiedfor3V, 5Vand±15Vsupplies.

Reverse battery protection (–18V min) and inputs that

operate above the positive supply make the LT1672/

LT1673/LT1674 easy to use in harsh environments.

Low Supply Current: 2µA Max per Amplifier

■

Rail-to-Rail Input and Output

■

Low Offset Voltage: 375µV Max

Over-The-Top^TMInputs Operate Above V⁺

Gain Bandwidth Product: 12kHz

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

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. For

unity gain stable versions of these amplifiers, see the

LT1494/LT1495/LT1496.

APPLICATIO S

■

Battery- or Solar-Powered Systems

■

Portable Instrumentation

■

Remote Sensor Amplifier

■

Micropower Filter

Photodiode Amplifier

■

The LT1672 is available in the 8-pin MSOP, PDIP and SO

packages. The LT1673 is available in plastic 8-pin PDIP

and SO-8 packages with the standard dual op amp pinout.

The LT1674 is available in 14-pin PDIP and SO packages.

■

High Impedance Circuits

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

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

TYPICAL APPLICATION

TC V_OSDistribution

Single Supply, 60µW Precision Instrumentation Amplifier

120 AMPLIFIERS

= ±2.5V

100k*

–40°C to 85°C

IN1

1/2 LT1673

–

110k

100k

–

LT1672

OUT

1000pF

110k

–

= 100

BANDWIDTH = 1kHz

1/2 LT1673

CMRR = 65dB AT 120Hz

0.0047µF

LT1389-2.5

–1.5

–0.9

–0.3

0.3

0.9

1.5

100k*

*500V TRANSIENT PROTECTION

TOTAL SUPPLY CURRENT = 12µA

IN2

TC V (µV/°C)

1672/3/4 TA01

1672/3/4 TA02

12 3 4 5 6 7...12

中文翻译

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与LT1673相关器件

型号	品牌	获取价格	描述	数据表
LT1673_15	Linear	获取价格	Dual and Quad Over-The-Top Precision Rail-to-Rail Input and Output Op Amps
LT1673CN8	Linear	获取价格	2MMax, AV=>5 SINGLE, DUAL AND QUAD OVER-THE-TOP PRECISION RAIL-TO-RAIL INPUT AND OUTPUT OP
LT1673CN8#PBF	Linear	获取价格	LT1673 - 2uA Max, AV >=5 Dual Over-The-Top Precision Rail-to-Rail Input and Output
LT1673CS8	Linear	获取价格	2MMax, AV=>5 SINGLE, DUAL AND QUAD OVER-THE-TOP PRECISION RAIL-TO-RAIL INPUT AND OUTPUT OP
LT1673CS8#PBF	Linear	获取价格	LT1673 - 2uA Max, AV >=5 Dual Over-The-Top Precision Rail-to-Rail Input and Output
LT1673CS8#TR	Linear	获取价格	LT1673 - 2uA Max, AV >=5 Dual Over-The-Top Precision Rail-to-Rail Input and Output
LT1673CS8#TRPBF	Linear	获取价格	LT1673 - 2uA Max, AV >=5 Dual Over-The-Top Precision Rail-to-Rail Input and Output
LT1673IN8	Linear	获取价格	2MMax, AV=>5 SINGLE, DUAL AND QUAD OVER-THE-TOP PRECISION RAIL-TO-RAIL INPUT AND OUTPUT OP
LT1673IS8	Linear	获取价格	2MMax, AV=>5 SINGLE, DUAL AND QUAD OVER-THE-TOP PRECISION RAIL-TO-RAIL INPUT AND OUTPUT OP
LT1673IS8#PBF	Linear	获取价格	LT1673 - 2uA Max, AV >=5 Dual Over-The-Top Precision Rail-to-Rail Input and Output

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