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MAX495

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Parameters

Technical/Catalog InformationMAX4950ACTX+
VendorMaxim Integrated Products
CategoryIntegrated Circuits (ICs)
Number of Drivers/Receivers-
TypeEqualizer
Voltage - Supply3.3V
Package / Case36-TQFN Exposed Pad
PackagingTube
Protocol-
Drawing Number175; 21-0141; TX; 36
Lead Free StatusLead Free
RoHS StatusRoHS Compliant
Other Names MAX4950ACTX+
MAX4950ACTX+

Product Manufacturers Pack D/C
MAX495 - - -

Pinout/Connection Diagram

 max495 Circuit
The circuit reduces noise and ripple voltage by 40 dB over the 100-Hz to 20-kHz audio range. It provides a clean source of 5-V power for driving audio circuits in portable applications such as cellular phones and multimedia notebook computers. Most linear regulators reject noise only up to 1000 Hz or so, and the bulk of a low-frequency passive filter is unwelcome in portable applications. The circuit shown accepts noisy Vcc in the 4.5- to 6-V range and produces quiet Vcc at a dc level 7 percent lower. For example, it produces 4.65 V at 1 A from a nominal 5-V source, with only 200 μA of quiescent current. The largest capacitor is 10 μF and the resistors can be 0.1 W or surface-mount 0805 size. When operating, the circuit acts as a wide-bandwidth buffered voltage follower (not a regulator) whose dc output level is 7 percent below Vin。 R1 and R3 form a voltage divider that provides the 7 percent attenuation, and C4 helps to form a 93-percent filter replica of Vin at the op amp's inverting input. The op amp's small input bias current (25 nA typical) allows large resistor values for R1 and R3, yet limits the maximum dc error to only 20 mV. The result is a low-pass filter with a 2-Hz corner frequency that provides 20 dB of attenuation at 20 Hz.

General Description

The dual MAX492, quad MAX494, and single MAX495 operational amplifiers combine excellent DC accuracy with rail-to-rail operation at the input and output. Since the common-mode voltage extends from VCC to VEE, the devices can operate from either a single supply (+2.7V to +6V) or split supplies (±1.35V to ±3V). Each op amp requires less than 150µA supply current. Even with this low current, the op amps are capable of driving 1k load, and the input referred voltage noise is only 25nV/ÃHz. In addition, these op amps can drive loads in excess of 1nF.

The precision performance of the MAX492/MAX494/ MAX495, combined with their wide input and output dynamic range, low-voltage single-supply operation, and very low supply current, makes them an ideal choice for battery-operated equipment and other low-voltage applications. The MAX492/MAX494/MAX495 are available in DIP and SO packages in the industry-standard op-amp pin configurations. The MAX495 is also available in the smallest 8-pin SO: the µMAX package.

Typical Application

Features

Portable EquipmentBattery-Powered InstrumentsData AcquisitionSignal ConditioningLow-Voltage Applications Low-Voltage Single-Supply Operation (+2.7V to +6V)Rail-to-Rail Input Common-Mode Voltage RangeRail-to-Rail Output Swing500kHz Gain-Bandwidth Product Unity-Gain Stable 150µA Max Quiescent Current per Op Amp No Phase Reversal for Overdriven Inputs 200µV Offset Voltage High Voltage Gain (108dB)High CMRR (90dB) and PSRR (110dB)Drives 1k Load Drives Large Capacitive Loads MAX495 Available in µMAX Package-8-Pin SO

Maximum Ratings

Supply Voltage (VCC to VEE) ........................................................7V
Common-Mode Input Voltage................(VCC + 0.3V) to (VEE - 0.3V)
Differential Input Voltage ...........................................±(VCC - VEE)
Input Current (IN+, IN-, NULL1, NULL2) .............................±10mA
Output Short-Circuit Duration ......................Indefinite short circuit
to either supply
Voltage Applied to NULL Pins .........................................VCC to VEE
Continuous Power Dissipation (TA = +70°C)
8-Pin Plastic DIP (derate 9.09mW/°C above +70°C) .......727mW
8-Pin SO (derate 5.88mW/°C above +70°C)....................471mW
8-Pin CERDIP (derate 8.00mW/°C above +70°C).............640mW
14-Pin Plastic DIP (derate 10.00mW/°C above +70°C)....800mW
14-Pin SO (derate 8.33mW/°C above +70°C)..................667mW
14-Pin CERDIP (derate 9.09mW/°C above +70°C)...........727mW
Operating Temperature Ranges
MAX49_C_ _ ..........................................................0°C to +70°C
MAX49_E_ _........................................................-40°C to +85°C
MAX49_M_ _.....................................................-55°C to +125°C
Junction Temperatures
MAX49_C_ _/E_ _.............................................................+150°C
MAX49_M_ _ ....................................................................+175°C
Storage Temperature Range ...........................-65°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C

Supplier

Select all
  Part Number Mfg Pack D/C Qty Note
MAX495 MAXIM DIP 08+ 6
  Goldenway Electronic Limited Company Hong Kong
Contact: Ms. sarah   Tel: 0086-755-82535329 Fax: 0086-755-
MAX495 MAXIN SMD 15000 New and original sample can be provided
  UNION TECHNOLOGY (HK) TRADING COMPANY LIMITED China (Mainland)
Contact: Mr. Kevin   MSN:union-hk@live.com Tel: 0086-755-82813231/ 82813232 Fax: 0086-755-82813230
MAX495 MAXIM SOP N/A 9
  AllPurpose Electronics Co.,Ltd China (Mainland)
Contact: Mr. Sandi   MSN:ap-ec@hotmail.com Tel: 86-0754-84496014 Fax: 86-0754-84496014
MAX495 MAXIM SOP N/A 500
  SHUANGZHI(HK)CO.,LTD Hong Kong
Contact: Mr. chan   MSN:leochan64588@msn.cn MSN:zimingchan@msn.cn Tel: 86-0755-82794881 Fax: 86-0755-82794836
MAX495 MAX SOP 09+ 50000 The main sales original
  XINGGUANGSHENG ELECTRONICS(HK) LIMITED China (Mainland)
Contact: Mr. SU   MSN:xgsdz2@msn.cn Tel: 086-0755-61685953 Fax: 086-0755-82539159
MAX495 MAXIM SOP 360 New and original sample can be provided.
  SILICON TECHNOLOGY(HONGKONG)ELECTRONIC LIMITED China (Mainland)
Contact: Mr. chen   MSN:siliconic@hotmail.com Tel: 86-755-83000558 Fax: 86-755-83000758
MAX495 MAXIM SOP 95+ 178 SUNON'S STOCK
  SUNON(HK) SEMICON CO.,LTD Hong Kong
Contact: Mr. Rick Lin   MSN:sun789@msn.cn Tel: 86-755-82811600 Fax: 86-755-83985387
MAX495 MAXIM SOP 08+ 10
  AN NUOKE(HONGKONG)ELECTRONIC TECHNOLOGY LIMITED China (Mainland)
Contact: Mr. Ouyang   MSN:annuokeic@hot.com Tel: 86-020-83190457 Fax: 86-020-83192721
MAX495 MAX 300 In-Stock
  Kinglead International Trading Limited China (Mainland)
Contact: Ms. Melody Wu   MSN:sales6@kinglead.com Tel: 86-0755-88837711 Fax: 86-0755-28526941
MAX495 MAXIM 3005
  South Teetion Electronic Co. Limited China (Mainland)
Contact: Ms. Lily   MSN:nftx-ic@hotmail.com Tel: 86-0755-82764123 Fax: 86-0755-82783123
MAX495 MAXIM DIP 10+ 14
  SUPER-COMPONENTS LIMITED Hong Kong
Contact: Ms. Lotus   MSN:super-components@hotmail.com Tel: 86-852-3068-4088 Fax: 86-852-3068-4328
MAX495 MAX 2732+ 123 N/A
  STARS SYSTEM LIMITED China (Mainland)
Contact: Ms. Angel   MSN:angel.hkstars.syatem@hotmail.com Tel: 86-0755-82500770 Fax: 86-0755-82500550
MAX495 MAXIM SOP 08+ 10
  HEKEDA(HK) ELECTRONIC TECHNOGY CO.,LIMITED China (Mainland)
Contact: Ms. Ana,Kendy,Karry,Elina,Coco   MSN:hkddz@hotmail.com Tel: 86-755-82736428 Fax: 86-755-82567082
MAX495 4000 2005
  4-ASIA TECHNOLOGY LTD China (Mainland)
Contact: Ms. grace huang   MSN:grace_sun1@hotmail.com Tel: 86-0755-86241481 Fax: 86-0755-26560215
MAX495 MAXIM DIP 307 in stock/1-2days leadtime new and original
  CHUANG JIA (HONG KONG) ELECTRONICS LIMITED China (Mainland)
Contact: Ms. linda shu   MSN:chuangjia5558@hotmail.com Tel: 86-0755-61681322 Fax: 86-0755-83986737
MAX495 MAX SMD 06+ 18240 IN STOCK
  International IC Agent Co., Ltd China (Mainland)
Contact: Mr. Carrey   MSN:GJICDL@hotmail.com Tel: 86-0754-84482847 Fax: 86-0754-89970361
MAX495
  KEDA(HK)ELECTRONICS CO China (Mainland)
Contact: Mr. MIKE   Tel: +86-754-8448-7547 Fax: +86-754-8447-6547
MAX495 MAXIM SOP 09+ 178 Special price&New & original in stock
  HK aodeli Electronics Ltd. China (Mainland)
Contact: Ms. tesi   MSN:candy1882011@hotmail.com Tel: 86-0755-88822278/82861241/ Fax: 86-0755-29473362
MAX495 MAXIM SOP 10
  HK Galaxyic Intenational Co.,Ltd China (Mainland)
Contact: Ms. Amanda Wang   MSN:galaxyicamanda@hotmail.com Tel: 86-755-83983880 Fax: 86-755-83983990
MAX495 MAXIM SOP 08+ 50
  XIA SONG(HK) ELECTRONICS CO.,LTD China (Mainland)
Contact: Mr. Chen   MSN:electronic73@hotmail.com Tel: 86-755-25801614 Fax: 86-755-25801614
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PDF / Datasheet

MAX495 PDF Download

MAX495

File Size: 236423 KB
Manufacturer: MAXIM [Maxim Integrated Products]

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