LMR344F [ROHM]

LMR344F是输入接地检测、输出全振幅的CMOS运算放大器。具有低电压工作、低消耗电流的特点，是适用于传感器放大器、电池驱动设备、电池监视、语音用音频前置放大器用途的运算放大器。;


型号：	LMR344F
厂家：	ROHM
描述：	LMR344F是输入接地检测、输出全振幅的CMOS运算放大器。具有低电压工作、低消耗电流的特点，是适用于传感器放大器、电池驱动设备、电池监视、语音用音频前置放大器用途的运算放大器。电池放大器驱动运算放大器放大器电路传感器
文件：	总7页 (文件大小：319K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

Datasheet

Operational Amplifiers

Low Supply Current

Ground Sense Operational Amplifiers

LMR341G

●Key Specifications

●General Description

 Low Operating Supply Voltage (single supply):

LMR341G is single CMOS Op-Amp with shutdown

function, low supply voltage operation and output full

swing. There are suitable for battery equipment.

MOS-FET input stage provide low input bias current. It is

capable to use for sensor applications.

+2.7V to +5.0V

 High voltage gain (RL=2KΩ):

 Wide Temperature Range:

 Turn on time from shutdown:

 Low Input Offset Voltage:

 Low Input Bias Current:

103dB(Typ.)

-40°C to +85°C

15μs (Typ.)

4mV (Max.)

1pA (Typ.)

●Features

 Low operating supply voltage

 Input Ground Sense, Output Full Swing

 High large signal voltage gain

 Low input bias current

 Low supply current

●Package

W(Typ.) xD(Typ.) xH(Max.)

2.90mm x 2.80mm x 1.25mm

SSOP6

 Low input offset voltage

 Shutdown function

●Applications

 Customer electronics

 Buffer

 Active filter

 Mobile equipment

 Battery equipment

●Simplified Schematic

VDD

BIAS1

+IN

-IN

Class AB

Control

OUT

Shutdown

Control

SHDN

VSS

BIAS

Figure 1. Simplified Schematic

○Product structure：Silicon monolithic integrated circuit ○This product is not designed protection against radioactive rays.

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Datasheet

LMR341G

●Pin Configuration

LMR341G : SSOP6

Pin No.

Pin Name

+IN

VSS

-IN

+IN

VDD

VSS

-IN

SHDN

OUT

——————

SHDN

VDD

Package

SSOP6

LMR341G

●Shutdown

Input condition

State

Shutdown

Active

VSS

VDD

——————

SHDN

Note: Please refer to Electrical Characteristics regarding the turn on and off voltage.

●Ordering Information

L M R

1 G

T R

Part Number

LMR341

Package

G:SSOP6

Packaging and forming specification

TR: Embossed tape and reel

●Line-up

Topr

-40°C to +85°C

Package

Reel of 3000

Operable Part Number

SSOP6

LMR341G-TR

●Absolute Maximum Ratings(Ta=25°C)

Parameter

Symbol

Ratings

Unit

Supply Voltage

VDD-VSS

675^*1*2

Power dissipation

Differential Input Voltage^*3

SSOP6

Vid

VDD to VSS

Input Common-mode

Voltage Range

Vicm

(VSS - 0.3) to (VDD + 0.3)

Operable with low voltage

Operating Temperature

Storage Temperature

Vopr

Topr

Tstg

+2.7 to +5.0

- 40 to +85

- 55 to +150

°C

Maximum

Junction Temperature

Tjmax

+150

°C

Note: Absolute maximum rating item indicates the condition which must not be exceeded.

Application of voltage in excess of absolute maximum rating or use out absolute maximum rated

temperature environment may cause deterioration of characteristics.

To use at temperature above Ta＝25°C reduce 5.4mW/°C.

Mounted on a FR4 glass epoxy PCB (70mm×70mm×1.6mm).

The voltage difference between inverting input and non-inverting input is the differential input voltage.

Then input terminal voltage is set to more than VSS.

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Datasheet

LMR341G

●Electrical Characteristics:

——————

○LMR341G (Unless otherwise specified VDD=+2.7V, VSS=0V, SHDN=VDD)

Limits

Typ.

Temperature

Range

Parameter

Symbol

Unit

Condition

Min.

Max.

25°C

Full Range

0.25

4.5

Input Offset Voltage ^{*4 *5}

Input Offset Voltage Drift

Input Offset Current^*4

Vio

ΔVio/ΔT

Iio

μV/°C

VDD=2.7V to 5.0V

25°C

1.7

Input Bias Current ^*4

25°C

Full range

100

170

230

Supply Current

IDD

μA

Av=0dB, VIN=1.35V

——————

Shutdown Current

IDD_SD

VOH

VOL

25°C

0.2

1000

SHDN=0V

113

103

RL=2kΩ to VDD/2

RL=10kΩ to VDD/2

RL=2kΩ to VDD/2

RL=10kΩ to VDD/2

RL=2kΩ to VDD/2

Maximum Output Voltage(High)

Maximum Output Voltage(Low)

Large Signal Voltage Gain

25°C

Input Common-mode

Voltage Range

Vicm

VSS

VDD-1

Common-mode Rejection Ratio CMRR

VCM=1.35V

VDD=2.7V to 5.0V

VCM=0.5V

Power Supply Rejection Ratio

Output Source Current ^*6

Output Sink Current ^*6

Slew Rate

PSRR

Isource

Isink

25°C

OUT=0V, short current

OUT=2.7V, short current

RL=10kΩ, VIN=1.7V_P-P

1.0

V/μs

MHz

Deg

CL=200pF, RL=100kΩ

Av=40dB, f=100kHz

Gain Bandwidth

GBW

CL=200pF, RL=100kΩ

Av=40dB, gain=0dB

Unit Gain Frequency

Phase Margin

CL=20pF, RL=100kΩ

Av=40 dB

CL=20pF, RL=100kΩ

Av=40dB

Gain Margin

4.5

Input Referred Noise Voltage

nV/ Hz f=1kHz

OUT=1V_P-P, f=1kHz

Total Harmonic Distortion

+ Noise

THD+N

25°C

0.017

RL=600Ω

Av=0dB, DIN-AUDIO

Turn On Time From Shutdown

Turn On Voltage High

1.8

1.1

μs

TON

VSHDN_H

VSHDN_L

25°C

Turn On Voltage Low

Absolute value.

Full range: Ta=-40°C to +85°C

Under the high temperature environment, consider the power dissipation of IC when selecting the output current.

When the terminal short circuits are continuously output, the output current is reduced to climb to the temperature inside IC.

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Datasheet

LMR341G

——————

○LMR341G (Unless otherwise specified VDD=+5.0V, VSS=0V, SHDN=VDD)

Limits

Typ.

Temperature

Range

Parameter

Symbol

Unit

Condition

Min.

Max.

25°C

Full Range

0.25

4.5

Input Offset Voltage ^{*7 *8}

Input Offset Voltage Drift

Input Offset Current^*7

Vio

ΔVio/ΔT

Iio

μV/°C

VDD=2.7V to 5.0V

25°C

1.9

Input Bias Current ^*7

25°C

Full range

110

200

260

Supply Current

IDD

μA

Av=0dB, VIN=2.5V

——————

Shutdown Current

IDD_SD

VOH

VOL

25°C

0.5

1000

SHDN=0V

116

107

RL=2kΩ to VDD/2

RL=10kΩ to VDD/2

RL=2kΩ to VDD/2

RL=10kΩ to VDD/2

RL=2kΩ to VDD/2

Maximum Output Voltage(High)

Maximum Output Voltage(Low)

Large Signal Voltage Gain

25°C

Input Common-mode

Voltage Range

Vicm

VSS

VDD-1

Common-mode Rejection Ratio CMRR

VCM=2.5V

VDD=2.7V to 5.0V

VCM=0.5V

Power Supply Rejection Ratio

Output Source Current ^*9

Output Sink Current ^*9

Slew Rate

PSRR

Isource

Isink

25°C

113

OUT=0V, short current

OUT=5V, short current

RL=10kΩ,VIN=2V_P-P

1.0

V/μs

MHz

Deg

CL=200pF, RL=10kΩ

Av=40dB, f=100kHz

Gain Bandwidth

GBW

CL=200pF, RL=10kΩ

Av=40dB, gain=0dB

Unit Gain Frequency

Phase Margin

CL=20pF, RL=100kΩ

Av=40dB

CL=20pF, RL=100kΩ

Av=40dB

Av=40dB, DIN-AUDIO

f=1kHz

Gain Margin

4.5

Input Referred Noise Voltage

nV/ Hz

OUT=1V_P-P, f=1kHz

RL=600Ω

Av=0dB, DIN-AUDIO

Total Harmonic Distortion

+ Noise

THD+N

25°C

0.012

Turn On Time From Shutdown

Turn On Voltage High

25°C

3.2

2.2

μs

TON

VSHDN_H

VSHDN_L

Turn On Voltage Low

Absolute value

Full range: Ta=-40°C to +85°C

Under the high temperature environment, consider the power dissipation of IC when selecting the output current.

When the terminal short circuits are continuously output, the output current is reduced to climb to the temperature inside IC.

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Notice

●General Precaution

1) Before you use our Products, you are requested to carefully read this document and fully understand its contents.

ROHM shall not be in any way responsible or liable for failure, malfunction or accident arising from the use of any

ROHM’s Products against warning, caution or note contained in this document.

2) All information contained in this document is current as of the issuing date and subject to change without any prior

notice. Before purchasing or using ROHM’s Products, please confirm the latest information with a ROHM sales

representative.

●Precaution on using ROHM Products

1) Our Products are designed and manufactured for application in ordinary electronic equipments (such as AV equipment,

OA equipment, telecommunication equipment, home electronic appliances, amusement equipment, etc.). If you

intend to use our Products in devices requiring extremely high reliability (such as medical equipment, transport

equipment, traffic equipment, aircraft/spacecraft, nuclear power controllers, fuel controllers, car equipment including car

accessories, safety devices, etc.) and whose malfunction or failure may cause loss of human life, bodily injury or

serious damage to property (“Specific Applications”), please consult with the ROHM sales representative in advance.

Unless otherwise agreed in writing by ROHM in advance, ROHM shall not be in any way responsible or liable for any

damages, expenses or losses incurred by you or third parties arising from the use of any ROHM’s Products for Specific

Applications.

2) ROHM designs and manufactures its Products subject to strict quality control system. However, semiconductor

products can fail or malfunction at a certain rate. Please be sure to implement, at your own responsibilities, adequate

safety measures including but not limited to fail-safe design against the physical injury, damage to any property, which

a failure or malfunction of our Products may cause. The following are examples of safety measures:

[a] Installation of protection circuits or other protective devices to improve system safety

[b] Installation of redundant circuits to reduce the impact of single or multiple circuit failure

3) Our Products are designed and manufactured for use under standard conditions and not under any special or

extraordinary environments or conditions, as exemplified below. Accordingly, ROHM shall not be in any way

responsible or liable for any damages, expenses or losses arising from the use of any ROHM’s Products under any

special or extraordinary environments or conditions. If you intend to use our Products under any special or

extraordinary environments or conditions (as exemplified below), your independent verification and confirmation of

product performance, reliability, etc, prior to use, must be necessary:

[a] Use of our Products in any types of liquid, including water, oils, chemicals, and organic solvents

[b] Use of our Products outdoors or in places where the Products are exposed to direct sunlight or dust

[c] Use of our Products in places where the Products are exposed to sea wind or corrosive gases, including Cl2,

H2S, NH3, SO2, and NO2

[d] Use of our Products in places where the Products are exposed to static electricity or electromagnetic waves

[e] Use of our Products in proximity to heat-producing components, plastic cords, or other flammable items

[f] Sealing or coating our Products with resin or other coating materials

[g] Use of our Products without cleaning residue of flux (even if you use no-clean type fluxes, cleaning residue of

flux is recommended); or Washing our Products by using water or water-soluble cleaning agents for cleaning

residue after soldering

[h] Use of the Products in places subject to dew condensation

4) The Products are not subject to radiation-proof design.

5) Please verify and confirm characteristics of the final or mounted products in using the Products.

6) In particular, if a transient load (a large amount of load applied in a short period of time, such as pulse) is applied,

confirmation of performance characteristics after on-board mounting is strongly recommended. Avoid applying power

exceeding normal rated power; exceeding the power rating under steady-state loading condition may negatively affect

product performance and reliability.

7) De-rate Power Dissipation (Pd) depending on Ambient temperature (Ta). When used in sealed area, confirm the actual

ambient temperature.

8) Confirm that operation temperature is within the specified range described in the product specification.

9) ROHM shall not be in any way responsible or liable for failure induced under deviant condition from what is defined in

this document.

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●Precaution for Mounting / Circuit board design

1) When a highly active halogenous (chlorine, bromine, etc.) flux is used, the residue of flux may negatively affect product

performance and reliability.

2) In principle, the reflow soldering method must be used; if flow soldering method is preferred, please consult with the

ROHM representative in advance.

For details, please refer to ROHM Mounting specification

●Precautions Regarding Application Examples and External Circuits

1) If change is made to the constant of an external circuit, please allow a sufficient margin considering variations of the

characteristics of the Products and external components, including transient characteristics, as well as static

characteristics.

2) You agree that application notes, reference designs, and associated data and information contained in this document

are presented only as guidance for Products use. Therefore, in case you use such information, you are solely

responsible for it and you must exercise your own independent verification and judgment in the use of such information

contained in this document. ROHM shall not be in any way responsible or liable for any damages, expenses or losses

incurred by you or third parties arising from the use of such information.

●Precaution for Electrostatic

This Product is electrostatic sensitive product, which may be damaged due to electrostatic discharge. Please take proper

caution in your manufacturing process and storage so that voltage exceeding the Products maximum rating will not be

applied to Products. Please take special care under dry condition (e.g. Grounding of human body / equipment / solder iron,

isolation from charged objects, setting of Ionizer, friction prevention and temperature / humidity control).

●Precaution for Storage / Transportation

1) Product performance and soldered connections may deteriorate if the Products are stored in the places where:

[a] the Products are exposed to sea winds or corrosive gases, including Cl2, H2S, NH3, SO2, and NO2

[b] the temperature or humidity exceeds those recommended by ROHM

[c] the Products are exposed to direct sunshine or condensation

[d] the Products are exposed to high Electrostatic

2) Even under ROHM recommended storage condition, solderability of products out of recommended storage time period

may be degraded. It is strongly recommended to confirm solderability before using Products of which storage time is

exceeding the recommended storage time period.

3) Store / transport cartons in the correct direction, which is indicated on a carton with a symbol. Otherwise bent leads

may occur due to excessive stress applied when dropping of a carton.

4) Use Products within the specified time after opening a humidity barrier bag. Baking is required before using Products of

which storage time is exceeding the recommended storage time period.

●Precaution for Product Label

QR code printed on ROHM Products label is for ROHM’s internal use only.

●Precaution for Disposition

When disposing Products please dispose them properly using an authorized industry waste company.

●Precaution for Foreign Exchange and Foreign Trade act

Since our Products might fall under controlled goods prescribed by the applicable foreign exchange and foreign trade act,

please consult with ROHM representative in case of export.

●Precaution Regarding Intellectual Property Rights

1) All information and data including but not limited to application example contained in this document is for reference

only. ROHM does not warrant that foregoing information or data will not infringe any intellectual property rights or any

other rights of any third party regarding such information or data. ROHM shall not be in any way responsible or liable

for infringement of any intellectual property rights or other damages arising from use of such information or data.:

2) No license, expressly or implied, is granted hereby under any intellectual property rights or other rights of ROHM or any

third parties with respect to the information contained in this document.

Notice - Rev.004

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●Other Precaution

1) The information contained in this document is provided on an “as is” basis and ROHM does not warrant that all

information contained in this document is accurate and/or error-free. ROHM shall not be in any way responsible or

liable for any damages, expenses or losses incurred by you or third parties resulting from inaccuracy or errors of or

concerning such information.

2) This document may not be reprinted or reproduced, in whole or in part, without prior written consent of ROHM.

3) The Products may not be disassembled, converted, modified, reproduced or otherwise changed without prior written

consent of ROHM.

4) In no event shall you use in any way whatsoever the Products and the related technical information contained in the

Products or this document for any military purposes, including but not limited to, the development of mass-destruction

weapons.

5) The proper names of companies or products described in this document are trademarks or registered trademarks of

ROHM, its affiliated companies or third parties.

Notice - Rev.004

LMR344F [ROHM]

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