OP484FSZ-REEL7 Price & Stock
- 4 Star
- AAAChips
- AAComp
- ACDS
- ACME
- AIChipLink
- AllChip Elec
- Allelco
- AmpleChip
- Ande Elec
- AnLin
- Anterwell
- Anywayele
- APS
- Ariat
- Asen Elec
- Atosn
- ATP
- Augswan
- Au Ling
- Avnat
- AxisPart
- Besen Tech
- Best Comp
- Braveelec
- Brilltron
- CGOC
- Chipinventory
- ChipOne
- Chipsea
- ChipSource
- Chips Pulse
- Chuangxinda
- Classic
- CompExpert
- ComS.I.T.
- Conevo
- Conrad
- C Plus
- Cytech
- Dasenic
- Dechoele
- Depu
- DGT Ind
- DGT Tech
- Direct Components
- DREAMland
- Drex Elec
- Dxway
- Dynamic-sl
- Ea-chip
- EASEV
- Element14apac
- Errebi
- Ersa
- ESource
- Farnell
- FirstChoice
- Flip
- FlyWing
- Fmall
- FPGAMALL
- Freelance
- Geefook
- GlobalTek
- Grand power
- GreenChips
- Green Light
- Greentree
- Handtmann
- Hansinfo
- HaoDe
- Heisener
- HeQing
- Hongte
- HonourChip
- Hotenda
- IC Components
- Icgogogo
- Icmiles
- ICSOSO
- ITD-IC
- J2sourcing
- Jak
- Jameco
- JiaLiXin
- Jiayi
- Jietai
- Kaian
- Kepictronics
- KK Wisdom
- Klytech
- Kynix
- Lankamicro
- LCSC
- Lingto
- LIXINC
- Longzi
- Lvychips
- Macroship
- March-Tech
- Maritex
- Mars Elec
- Martec
- MetaverseIc
- MicrochipUSA
- Microsemi
- Midan
- Mouser
- MV Comp
- NAC
- Nantian
- NetSource
- Newark
- NewStrength
- Nexxon
- OMO
- OnlineCom
- Origin Data
- PESE
- Pneda
- PUI
- Quattro
- Quest
- Resion
- Rixin
- Rochester
- RS
- RS DE
- RYX IC
- Sense Elec
- Shengyu
- Sierra
- SiliTech
- Southernel
- Sunether
- SZ Comp
- TE
- Tech-Electr
- TME
- Unicom Elec
- Unikey
- Utmel
- Ventron
- Voyager Comp
- Walsoon
- WanWeiChip
- Weyland
- WinSource
- Worldway
- Xianghongli
- Xinghuan
- Xinvry
- Xunqida
- YIC
- YST Elec
- Yuanxinai
Hide
Manufacturer

Integrated Circuits (ICs) > Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps
IC OPAMP GP 4.25MHZ RRO 14SO
Documents
Datasheet |
OP484FSZ-REEL7![]() |
Specifications
Part Status | Active |
Amplifier Type | General Purpose |
Number of Circuits | 4 |
Output Type | Rail-to-Rail |
Slew Rate | 4 V/µs |
Gain Bandwidth Product | 4.25MHz |
Current - Input Bias | 80nA |
Voltage - Input Offset | 250µV |
Current - Supply | 2.25mA |
Current - Output / Channel | 10mA |
Voltage - Supply, Single/Dual (±) | 3 V ~ 36 V, ±1.5 V ~ 18 V |
Operating Temperature | -40°C ~ 125°C |
Mounting Type | Surface Mount |
Package / Case | 14-SOIC (0.154", 3.90mm Width) |
Supplier Device Package | 14-SOIC |
Hide

Hotenda Technology
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | Analog Devices, Inc. | General Purpose Amplifier 4 Circuit Rail-to-Rail 14-SOIC | 1620 |
|
Inquiry |

Chip Source Co.
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | Analog Devices Inc. | IC OPAMP GP 4.25MHZ RRO 14SO | 85212 |
|
Inquiry |

Ande Electronics Co. Ltd.
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | ADI (Analog Devices, Inc.) | OP484FSZ-REEL7 IN STOCK | 10000 |
|
Inquiry |

Heisener Electronics Co., Limited
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | Analog Devices Inc. | IC OPAMP GP 4.25MHZ RRO 14SO Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps
|
21020 |
|
Buy |

Xinghuan International Trade Co., Ltd
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | Analog Devices, Inc. | 43108 |
|
Inquiry |

Microchip USA
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|
OP484FSZ-REEL7 | Analog Devices Inc. | Member of ERAI, GIDEP, & ITAR | ISO 9001, ISO 2001, ISO 14001 & AS9120 Certified ; Tape & Reel (TR) | 2417 |
|
Inquiry |
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | Analog Devices Inc. | IC OPAMP GP 4.25MHZ RRO 14SO | 16000 |
|
Inquiry |

ICSOSO Electronics Company Limited
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | Analog Devices | Precision Rail-to-Rail Input & Output Operational Amplifier | 3101 |
|
Inquiry |

Win Source
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | ||
---|---|---|---|---|---|---|---|
OP484FSZ-REEL7 | Analog Devices Inc. | IC OPAMP GP 4.25MHZ RRO 14SO | 1020 |
|
Buy |

Fmall Co., Limited
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
OP484FSZ-REEL7 | Analog Devices Inc. | IC OPAMP GP 4 CIRCUIT 14SOIC | 9380 |
|
Inquiry |

Mouser
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
OP484FSZ-REEL7
sku #: 584-OP484FSZ-R7
|
Analog Devices | Precision Amplifiers PREC RAIL TO RAIL OP AMP Precision Amplifiers
|
3270 In Stock |
|
Buy | ||||||||||
OP484FSZ
sku #: 584-OP484FSZ
|
Analog Devices | Precision Amplifiers PREC RAIL TO RAIL OP AMP Precision Amplifiers
|
499 In Stock |
|
Buy |
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | ADI (Analog Devices, Inc.) | IC OPAMP GP 4.25MHZ RRO 14SO ; 14-SOIC Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps
|
Available |
|
Inquiry |
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | Analog Devices Inc. | IC OPAMP GP 4 CIRCUIT 14SOIC | 4991 |
|
Inquiry |

Hong Kong Brave Electronics
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | Analog Devices, Inc. | 14-SOIC (0.154", 3.90mm Width) | 9000 |
|
Inquiry |

Lanka Micro Electronic Co.,Limited
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | Analog Devices, Inc. | IC OPAMP GP 4 CIRCUIT 14SOIC | 2677 |
|
Buy |

Weyland Electronics Group Pte. Ltd.
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | Analog Devices | Precision Operational Amplifier Precision Operational Amplifier
|
1051 |
|
Buy |
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | Analog Devices Inc. | IC OPAMP GP 4 CIRCUIT 14SOIC | 2593 |
|
Inquiry |

Sunether Technology Ltd.
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | Analog Devices Inc. | IC OPAMP GP 4 CIRCUIT 14SOIC | 200 |
|
Inquiry |

Allelco Limited
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | ||
---|---|---|---|---|---|---|---|
OP484FSZ-REEL7 | Analog Devices, Inc. | IC OPAMP GP 4 CIRCUIT 14SOIC Integrated Circuits (ICs) > Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps
|
4466 |
|
Inquiry |
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | Analog Devices Inc. | DC:Active ; - | 2191 |
|
Inquiry |
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | ADI (Analog Devices, Inc.) | IC OPAMP GP 4.25MHZ RRO 14SO Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps
|
In-Stock |
|
Inquiry | |
OP484FSZ-REEL7 | Precision Rail-to-Rail Input and Output Operational Amplifiers ADI chip
|
In-Stock |
|
Inquiry |
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | Analog Devices Inc. | IC OPAMP GP 4 CIRCUIT 14SOIC | 5325 |
|
Inquiry |

Lvy Electronics
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | 2000 |
|
Inquiry | |||
OP484FSZ-REEL7 | Analog Devices Inc. | 2000 |
|
Inquiry |

Unikey Electronics Pte. Ltd.
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | Analog Devices | 2000 |
|
Inquiry |

Classic Components
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | Analog Devices | 674 |
|
Inquiry | ||
OP484FSZ-REEL7 | AD | 1540 |
|
Inquiry |

Ample Chip
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | Linear Technology (Analog Devices, Inc.) | IC OPAMP GP 4 CIRCUIT 14SOIC | 8906 |
|
Inquiry |

ODG (Origin Data Global)
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
OP484FSZ-REEL7 | Analog Devices | IC OPAMP GP 4 CIRCUIT 14SOIC | 1112 |
|
Buy |

PNEDA Technology Co., Ltd
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | Analog Devices | 19656 |
|
Inquiry |
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | ADI | SOIC-14 | 12381 |
|
Inquiry |
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | Analog Devices Inc | Op Amp Quad Precision Amplifier R-R I/O ±18V/36V 14-Pin SOIC N T/R | 20 |
|
Buy |

Depu Electronics
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | Analog Devices Inc. | IC OPAMP GP 4 CIRCUIT 14SOIC | 17540 |
|
Inquiry |

LIXINC Electronics Co., Limited
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | Analog Devices, Inc. | Brand new and original/respond online to quote. | 7752 |
|
Inquiry |

EA-chip Industry Co., Ltd
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | Analog Devices Inc. | IC OPAMP GP 4 CIRCUIT 14SOIC | 3311 |
|
Inquiry |

KaiLiYuan Electronic Technology (ShenZhen) Co., Ltd
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | Analog Devices Inc. | IC OPAMP GP 4 CIRCUIT 14SOIC ; DC:21+ ; 14-SOIC | 111 |
|
Inquiry | |
OP484FSZ-REEL7 | Analog Devices Inc. | IC OPAMP GP 4 CIRCUIT 14SOIC ; DC:23+ | 17540 |
|
Inquiry | |
OP484FSZ-REEL7 | ADI | DC:23+ ; SOP14 | 994 |
|
Inquiry |
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | ADI | IC OPAMP GP 4 CIRCUIT 14SOIC | In-Stock |
|
Inquiry |

Shenzhen Shengyu Electronics Tech Limited.
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | Analog Devices | IC OPAMP GP 4 CIRCUIT 14SOIC | 37051 |
|
Inquiry |
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | ADI | DC:22+ ; SOIC-14 | 50000 |
|
Inquiry |
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | ADI | IN STOCK | 5000 |
|
Inquiry |

MountainView Components Inc.
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | ADI | IN STOCK Immediate delivery | 4500 |
|
Inquiry |

Avnat Group (Asia Pacific) Ltd.
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | ADI/ÑǵÂŵ | 177 |
|
Inquiry |

Chip 1 Exchange
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | AD | AVAILABLE | 1300 |
|
Inquiry |

SILITECH Components Inc
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | ADI | OEM/CM In stock | 3100 |
|
Inquiry |
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | ADI | SOP-14 ; DC:17+ | 7089 |
|
Inquiry |

Unicom Electronics co.
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | ADI | IN STOCK Immediate delivery | 3900 |
|
Inquiry |
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | ADI/ | 14-SOIC ; DC:1430+ | 2 |
|
Inquiry |
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | ANALOG DEVICES | 13049 |
|
Inquiry |

Nexxon, Inc. (USA)
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | AD | In Stock |
|
Inquiry | ||
OP484FSZ-REEL7 | Analog Devices Inc. | In Stock |
|
Inquiry | ||
OP484FSZ-REEL7 | ANALOG DEVICES | In Stock |
|
Inquiry |

RX Electronics Limited
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
OP484FSZ-REEL7 | ADI (Analog Devices, Inc.) | IC OPAMP GP 4.25MHZ RRO 14SO Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps
|
351 |
|
Inquiry |

GlobalTek Components
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZREEL7 | ADI | OEM/CM QUOTES ONLY | NO BROKERS | 1800 |
|
Inquiry |
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | ADI | in stock Immediately | 6500 |
|
Inquiry |

Cytech Systems Limited
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | ANALOG DEVICES | Available, Contact us | 99 |
|
Inquiry |
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | ADI | Original stock,24-hour delivery | 1042 |
|
Inquiry | |
OP484FSZ-REEL7 | ADI/ | Original stock,24-hour delivery | 9118 |
|
Inquiry |

Shenzhen Yuanxinai e-commerce Co., Ltd
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | Analog Devices Inc. | General Purpose Amplifier 4 Circuit Rail-to-Rail 14-SOIC | 452 |
|
Inquiry |

He Qing Electronics Ltd
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | Analog Devices Inc. | General Purpose Amplifier 4 Circuit Rail-to-Rail 14-SOIC ; Tape & Reel (TR) | 6920 |
|
Inquiry |
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | ADI (Analog Devices, Inc.) | The parts are in stock | 9350 |
|
Inquiry |

YIC International Co., Limited
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
OP484FSZ-REEL7 | Analog Devices Inc. | IC OPAMP GP 4.25MHZ RRO 14SO | 5312 |
|
Inquiry |

Ariat Technology
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | ||
---|---|---|---|---|---|---|---|
OP484FSZ-REEL7 | Analog Devices Inc. | IC OPAMP GP 4 CIRCUIT 14SOIC New Original Stock.
|
2811 |
|
Inquiry |
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | Analog Devices Inc. | Precision Amplifiers PREC RRIO 4MHz IC SGL Supply 1.5-18V | in stock |
|
Inquiry |
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | ADI | DC:2017+ ; SOP-14 | 171 |
|
Inquiry |
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | ADI/ | DC:19+ ; SOIC-14 | 6000 |
|
Inquiry |

Quest Components
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | ||||
---|---|---|---|---|---|---|---|---|---|
OP484FSZ-REEL7 | Analog Devices Inc | OPERATIONAL AMPLIFIER, 4 FUNC, 500UV OFFSET-MAX, BIPOLAR, PDSO14 | 13 |
|
Buy |

IC Components Limited
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|
OP484FSZ-REEL7 | Analog Devices Inc. | IC OPAMP GP 4 CIRCUIT 14SOIC | 5000 |
|
Buy |

Lingto Electronic Limited
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | Analog Devices, Inc. | DC:24+ ; Original New | 17491 |
|
Inquiry |
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | ADI | New and original | 3000 |
|
Inquiry |
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZREEL7
sku #: OP484FSZREEL7
|
Analog Devices | 924 |
|
Inquiry |
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | ADI (Analog Devices, Inc.) | IC OPAMP GP 4.25MHZ RRO 14SO | 13469 |
|
Inquiry |

Asian Tera Part Limited
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | ADI | Check alternative solution with competitive price | 20000 |
|
Buy |
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | In stock,ready for shipping | 4059 |
|
Inquiry |
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZREEL7 | Texas Instruments | OEM/CM ONLY | 972 |
|
Inquiry |

Farnell element14
Certificates
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7
sku #: 4021583RL
|
Analog Devices | Analog Devices - Op-Amp, 4.25Mhz, -40 To 125Deg C, Nsoic - Op484Fsz-Reel7 |Analog Devices OP484FSZ-REEL7 | out of stock |
|
Buy |
Part # | Manufacturer | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
OP484FSZ-REEL7 | AD-2018 ; DC:1806+ | 52500 |
|
Inquiry |
See Also: