MUX08EPZ
Analog Devices Inc.
IC MUX 8:1 300OHM 16DIP
במלאי2265 pcs
2µs, 400ns
-
2.5pF, 7pF
1nA
-70dB @ 500kHz
-
21Ohm
MUX08
Tube
-
300Ohm
-
8:1
-
1
16-PDIP
16-DIP (0.300', 7.62mm)
Through Hole
0°C ~ 70°C (TA)
-
RFQ
MAX319CSA
Analog Devices Inc./Maxim Integrated
IC SWITCH SPDT X 1 35OHM 8SOIC
במלאי13250 pcs
175ns, 145ns
3pC
8pF, 8pF
250pA
-85dB @ 1MHz
±4.5V ~ 20V
2Ohm (Max)
MAX319
Tube
10V ~ 30V
35Ohm
SPDT
2:1
-
1
8-SOIC
8-SOIC (0.154", 3.90mm Width)
Surface Mount
0°C ~ 70°C (TA)
-
RFQ
MAX4602EAE+T
Analog Devices Inc./Maxim Integrated
IC SW SPST-NOX4 2.5OHM 16SSOP
במלאי6269 pcs
250ns, 350ns
120pC
55pF, 55pF
500pA
-59dB @ 1MHz
±4.5V ~ 20V
100mOhm
MAX4602
Tape & Reel (TR)
4.5V ~ 36V
2.5Ohm
SPST - NO
1:1
-
4
16-SSOP
16-SSOP (0.209", 5.30mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
DG409LEDN-T1-GE4
Vishay Siliconix
IC SWITCH SP4T X 2 23OHM 16QFN
במלאי33246 pcs
72ns, 47ns
-10pC
5.5pF, 13.5pF
1nA
-109dB @ 100kHz
±3.3V ~ 8V
1Ohm
DG409
Tape & Reel (TR)
3V ~ 16V
23Ohm
SP4T
4:1
-
2
16-QFN (3x3)
16-VFQFN Exposed Pad
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
ADG1419BRMZ-REEL7
Analog Devices Inc.
IC SWITCH SPDT X 1 2.4OHM 8MSOP
במלאי7837 pcs
110ns, 140ns
-16pC
19pF, 44pF
500pA
-64dB @ 1MHz
±4.5V ~ 16.5V
50mOhm
ADG1419
Tape & Reel (TR)
5V ~ 16.5V
2.4Ohm
SPDT
2:1
135MHz
1
8-MSOP
8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Surface Mount
-40°C ~ 125°C (TA)
-
RFQ
MAX306EWI+T
Analog Devices Inc./Maxim Integrated
IC MUX 16:1 100OHM 28SOIC
במלאי3780 pcs
200ns, 150ns
2pC
8pF, 130pF
500pA
-92dB @ 100kHz
±4.5V ~ 20V
1.5Ohm
MAX306
Tape & Reel (TR)
5V ~ 30V
100Ohm
-
16:1
-
1
28-SOIC
28-SOIC (0.295', 7.50mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
ISL84052IVZ
Renesas Electronics America Inc
IC SWITCH SP4TX2 100OHM 16TSSOP
במלאי31327 pcs
50ns, 40ns
2pC
3pF, 12pF
2pA (Typ)
-
±2V ~ 6V
6Ohm (Max)
ISL84052
Tube
2V ~ 12V
100Ohm
SP4T
4:1
-
2
16-TSSOP
16-TSSOP (0.173", 4.40mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
DG413AK/883B
Analog Devices Inc./Maxim Integrated
IC SW SPST-NO/NCX4 30OHM 16CDIP
במלאי3720 pcs
175ns, 145ns
5pC
9pF, 9pF
250pA
-85dB @ 1MHz
±4.5V ~ 20V
3Ohm (Max)
DG413
Tube
10V ~ 30V
30Ohm
SPST - NO/NC
1:1
-
4
16-CDIP
16-CDIP (0.300", 7.62mm)
Through Hole
-55°C ~ 125°C (TA)
-
RFQ
MAX4582AUE
Analog Devices Inc./Maxim Integrated
IC SWITCH SP4T X 2 80OHM 16TSSOP
במלאי11630 pcs
200ns, 100ns
0.5pC
4pF, 10pF
1nA
-96dB @ 1MHz
±2V ~ 6V
1Ohm
MAX4582
Tube
2V ~ 12V
80Ohm
SP4T
4:1
-
2
16-TSSOP
16-TSSOP (0.173", 4.40mm Width)
Surface Mount
-40°C ~ 125°C (TA)
-
RFQ
SN74HC4851PWR
Texas Instruments
IC MUX 8:1 195OHM 16TSSOP
במלאי121840 pcs
78ns, 78ns
-
22pF
200nA
-
-
3Ohm
74HC4851
Tape & Reel (TR)
2V ~ 6V
195Ohm
-
8:1
-
1
16-TSSOP
16-TSSOP (0.173", 4.40mm Width)
Surface Mount
-40°C ~ 125°C (TA)
-
RFQ
HI1-0509A-5
Intersil
IC SW SP4TX2 1.8KOHM 16CERDIP
במלאי1996 pcs
300ns, 300ns (Typ)
-
10pF, 12pF
30pA (Typ)
-
±15V
-
-
Tube
-
1.8kOhm
SP4T
4:1
-
2
16-CERDIP
16-CDIP (0.300", 7.62mm)
Through Hole
0°C ~ 75°C (TA)
-
RFQ
ADG1222BRMZ-REEL7
Analog Devices Inc.
IC SW SPST-NCX2 200OHM 10MSOP
במלאי12070 pcs
130ns, 105ns
0.1pC
2.2pF, 2.2pF
100pA
-90dB @ 1MHz
±5V ~ 16.5V
2.5Ohm
ADG1222
Tape & Reel (TR)
5V ~ 16.5V
200Ohm
SPST - NC
1:1
960MHz
2
10-MSOP
10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Surface Mount
-40°C ~ 125°C (TA)
-
RFQ
DG506ACWI+
Analog Devices Inc./Maxim Integrated
IC MUX 16:1 450OHM 28SOIC
במלאי3706 pcs
1µs, 400ns
-
6pF, 45pF
5nA
-
±4.5V ~ 18V
-
DG506
Tube
-
450Ohm
-
16:1
-
1
28-SOIC
28-SOIC (0.295", 7.50mm Width)
Surface Mount
0°C ~ 70°C (TA)
-
RFQ
DG412DJ
Renesas Electronics America Inc
IC SWITCH SPST-NOX4 35OHM 16DIP
במלאי11190 pcs
175ns, 145ns
5pC
9pF, 9pF
100pA
-85dB @ 1MHz
±5V ~ 20V
-
DG412
Tube
5V ~ 44V
35Ohm
SPST - NO
1:1
-
4
16-PDIP
16-DIP (0.300", 7.62mm)
Through Hole
-40°C ~ 85°C (TA)
-
RFQ
ADG508FBRNZ
Analog Devices Inc.
IC MUX 8:1 270OHM 16SOIC
במלאי4592 pcs
230ns, 130ns
15pC
3pF, 22pF
1nA
-
±15V
8.1Ohm
ADG508
Tube
15V
270Ohm (Typ)
-
8:1
-
1
16-SOIC
16-SOIC (0.154', 3.90mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
ADG782BCP
Analog Devices Inc.
IC SWITCH QUAD SPST 20LFCSP
במלאי27844 pcs
-
-
-
-
-
-
-
ADG782
Bag
-
-
-
-
-
-
20-LFCSP (4x4)
20-WFQFN Exposed Pad, CSP
Surface Mount
-
-
RFQ
MAX4521CSE+T
Analog Devices Inc./Maxim Integrated
IC SW SPST-NCX4 100OHM 16SOIC
במלאי28663 pcs
80ns, 30ns
1pC
2pF, 2pF
1nA
-90dB @ 100kHz
±2V ~ 6V
1Ohm
MAX4521
Tape & Reel (TR)
2V ~ 12V
100Ohm
SPST - NC
1:1
-
4
16-SOIC
16-SOIC (0.154", 3.90mm Width)
Surface Mount
0°C ~ 70°C (TA)
-
RFQ
MUX36S16IPWR
Texas Instruments
IC MUX 16:1 170OHM 28TSSOP
במלאי5067 pcs
136ns, 78ns
0.31pC
3pF, 12.2pF
40pA
-100dB @ 1MHz
±5V ~ 18V
6Ohm
MUX36S16
Tape & Reel (TR)
10V ~ 36V
170Ohm
-
16:1
-
1
28-TSSOP
28-TSSOP (0.173', 4.40mm Width)
Surface Mount
-40°C ~ 125°C (TA)
-
RFQ
MAX4504CUK+T
Analog Devices Inc./Maxim Integrated
IC SW SPST-NCX1 250OHM SOT23-5
במלאי22760 pcs
150ns, 100ns
1pC
3pF, 3pF
1nA
-
±1V ~ 6V
-
MAX4504
Tape & Reel (TR)
-
250Ohm
SPST - NC
1:1
-
1
SOT-23-5
SC-74A, SOT-753
Surface Mount
0°C ~ 70°C (TA)
-
RFQ
HI1-0539-5
Intersil
IC SWITCH SP4TX2 900OHM 16CERDIP
במלאי1699 pcs
750ns, 650ns
10pC
5pF, 7pF
100pA (Typ)
-124dB @ 1kHz
±15V
4.5Ohm
-
Tube
-
900Ohm
SP4T
4:1
-
2
16-CERDIP
16-CDIP (0.300", 7.62mm)
Through Hole
0°C ~ 75°C (TA)
-
RFQ
CD4053BCMX
onsemi
IC SWITCH SPDT X 3 240OHM 16SOIC
במלאי15930 pcs
320ns, 150ns
-
-
50nA
-40dB @ 3MHz
±2.5V ~ 7.5V
5Ohm
CD4053
Tape & Reel (TR)
5V ~ 15V
240Ohm
SPDT
2:1
40MHz
3
16-SOIC
16-SOIC (0.154', 3.90mm Width)
Surface Mount
-55°C ~ 125°C (TA)
-
RFQ
STG3692QTR
STMicroelectronics
IC SWITCH SPDT X 4 5.2OHM 16QFN
במלאי34535 pcs
15ns, 13ns
5pC
5pF
20nA
-78dB @ 1MHz
-
300mOhm
STG3692
Tape & Reel (TR)
1.65V ~ 4.3V
5.2Ohm
SPDT
2:1
800MHz
4
16-QFN (2.6x1.8)
16-UFQFN Exposed Pad
Surface Mount
-55°C ~ 125°C (TA)
-
RFQ
UM4717Q
Union Semiconductor International Limited
IC SWITCH SPDT X 2 3.5OHM 10QFN
במלאי156700 pcs
80ns, 40ns
-
-
500pA
-70dB @ 10MHz
-
500mOhm
-
Tape & Reel (TR)
1.8V ~ 5.5V
3.5Ohm
SPDT
2:1
300MHz
2
10-QFN (1.8x1.4)
10-UFQFN
Surface Mount
-40°C ~ 85°C
-
RFQ
ADG619BRMZ-REEL
Analog Devices Inc.
IC SWITCH SPDT X 1 6.5OHM 8MSOP
במלאי15695 pcs
120ns, 75ns
110pC
25pF
250pA
-67dB @ 1MHz
±2.7V ~ 5.5V
700mOhm
ADG619
Tape & Reel (TR)
2.7V ~ 5.5V
6.5Ohm
SPDT
2:1
190MHz
1
8-MSOP
8-TSSOP, 8-MSOP (0.118', 3.00mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
MC74HC4052ADWR2G
onsemi
IC SWITCH SP4T X 2 100OHM 16SOIC
במלאי86510 pcs
-
-
80pF
100nA
-60dB @ 1MHz
±2V ~ 6V
10Ohm
74HC4052
Tape & Reel (TR)
2V ~ 6V
100Ohm
SP4T
4:1
95MHz
2
16-SOIC
16-SOIC (0.295', 7.50mm Width)
Surface Mount
-55°C ~ 125°C (TA)
-
RFQ
LTC1391CS#TRPBF
Analog Devices Inc.
IC MUX 8:1 75OHM 16SO
במלאי8689 pcs
400ns, 200ns
2pC
5pF, 10pF
5nA
-
±5V
-
LTC1391
Tape & Reel (TR)
2.7V
75Ohm
-
8:1
-
1
16-SO
16-SOIC (0.154', 3.90mm Width)
Surface Mount
0°C ~ 70°C (TA)
-
RFQ
MAX4595DCKR
Texas Instruments
IC SWITCH SPST-NCX1 10OHM SC70-5
במלאי96220 pcs
35ns, 40ns
2pC
8pF, 8pF
500pA
-
-
-
MAX4595
Tape & Reel (TR)
2.4V ~ 5.5V
10Ohm
SPST - NC
1:1
300MHz
1
SC-70-5
5-TSSOP, SC-70-5, SOT-353
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
NLAS4599DTT1
onsemi
IC SWITCH SPDT X 1 25OHM 6TSOP
במלאי7520 pcs
14ns, 8ns
3pC
10pF, 10pF
100nA
-
-
2Ohm
NLAS4
Tape & Reel (TR)
2V ~ 5.5V
25Ohm
SPDT
2:1
220MHz
1
6-TSOP
SOT-23-6 Thin, TSOT-23-6
Surface Mount
-55°C ~ 125°C (TA)
-
RFQ
DG401DJ
Analog Devices Inc./Maxim Integrated
IC SWITCH SPST-NOX2 45OHM 16DIP
במלאי17180 pcs
150ns, 100ns
10pC
12pF, 12pF
500pA
-90dB @ 1MHz
±4.5V ~ 20V
500mOhm
DG401
Tube
10V ~ 30V
45Ohm
SPST - NO
1:1
-
2
16-PDIP
16-DIP (0.300", 7.62mm)
Through Hole
-40°C ~ 85°C (TA)
-
RFQ
ADG441BN
Analog Devices Inc.
IC SWITCH SPST-NCX4 70OHM 16DIP
במלאי6500 pcs
110ns, 60ns
1pC
4pF, 4pF
500pA
-100dB @ 1MHz
±15V
-
ADG441
Tube
12V
70Ohm
SPST - NC
1:1
-
4
16-PDIP
16-DIP (0.300', 7.62mm)
Through Hole
-40°C ~ 85°C (TA)
-
RFQ
MAX4968AECM+
Analog Devices Inc./Maxim Integrated
IC SW SPST-NOX16 34OHM 48LQFP
במלאי632 pcs
5µs, 3.5µs
150pC
9pF
1µA
-76dB @ 5MHz
-
1.02Ohm
MAX4968
Tray
2.3V ~ 5.5V
34Ohm
SPST - NO
1:1
30MHz
16
48-LQFP (7x7)
48-LQFP
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
CD4051BCMTCX
onsemi
IC MUX 8:1 240OHM 16TSSOP
במלאי13950 pcs
320ns, 150ns
-
-
50nA
-40dB @ 3MHz
±2.5V ~ 7.5V
5Ohm
CD4051
Tape & Reel (TR)
5V ~ 15V
240Ohm
-
8:1
40MHz
1
16-TSSOP
16-TSSOP (0.173', 4.40mm Width)
Surface Mount
-55°C ~ 125°C (TA)
-
RFQ
NLAST9431MTR2G
onsemi
IC SWITCH DPDT X 1 25OHM 16WQFN
במלאי8800 pcs
14ns, 8ns
3pC
10pF, 10pF
1nA
-
-
2Ohm
NLAST94
Tape & Reel (TR)
2V ~ 5.5V
25Ohm
DPDT
2:2
200MHz
1
16-WQFN (1.8x2.6)
16-WFQFN
Surface Mount
-55°C ~ 125°C (TA)
-
RFQ
DG212BDY
Vishay Siliconix
IC SWITCH SPST-NOX4 85OHM 16SOIC
במלאי9690 pcs
300ns, 200ns
1pC
5pF, 5pF
500pA
-95dB @ 100kHz
±4.5V ~ 22V
2Ohm
DG212
Bulk
4.5V ~ 25V
85Ohm
SPST - NO
1:1
-
4
16-SOIC
16-SOIC (0.154", 3.90mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
LTC1391IS#TRPBF
Analog Devices Inc.
IC MUX 8:1 75OHM 16SO
במלאי7131 pcs
400ns, 200ns
2pC
5pF, 10pF
5nA
-
±5V
-
LTC1391
Tape & Reel (TR)
2.7V
75Ohm
-
8:1
-
1
16-SO
16-SOIC (0.154", 3.90mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
ADG608BRU
Analog Devices Inc.
IC MUX 8:1 30OHM 16TSSOP
במלאי10710 pcs
75ns, 45ns
6pC
9pF, 40pF
500pA
-85dB @ 100kHz
±5V
5Ohm (Max)
ADG608
Tube
3.3V ~ 5V
30Ohm
-
8:1
-
1
16-TSSOP
16-TSSOP (0.173", 4.40mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
DG441DJZ
Intersil
IC SWITCH SPST-NCX4 85OHM 16DIP
במלאי15780 pcs
250ns, 120ns
-1pC
4pF, 4pF
500pA
-100dB @ 1MHz
±5V ~ 22V
-
-
Bulk
5V ~ 34V
85Ohm
SPST - NC
1:1
-
4
16-PDIP
16-DIP (0.300", 7.62mm)
Through Hole
-40°C ~ 85°C (TA)
-
RFQ
ADG1422BRMZ
Analog Devices Inc.
IC SW SPST-NCX2 2.4OHM 10MSOP
במלאי9526 pcs
145ns, 145ns
-5pC
18pF, 22pF
500pA
-74dB @ 1MHz
±4.5V ~ 16.5V
20mOhm
ADG1422
Tube
5V ~ 16.5V
2.4Ohm
SPST - NC
1:1
180MHz
2
10-MSOP
10-TFSOP, 10-MSOP (0.118', 3.00mm Width)
Surface Mount
-40°C ~ 125°C (TA)
-
RFQ
DG419BDY
Vishay Siliconix
IC SWITCH SPDT X 1 25OHM 8SOIC
במלאי6980 pcs
89ns, 80ns
38pC
12pF, 12pF
250pA
-88dB @ 1MHz
±7V ~ 22V
-
DG419
Tube
13V ~ 36V
25Ohm
SPDT
2:1
-
1
8-SOIC
8-SOIC (0.154', 3.90mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
MAX4662CWE+
Analog Devices Inc./Maxim Integrated
IC SW SPST-NOX4 2.5OHM 16SOIC
במלאי4088 pcs
275ns, 175ns
300pC
55pF, 55pF
500pA
-59dB @ 1MHz
±4.5V ~ 20V
100mOhm
MAX4662
Tube
4.5V ~ 36V
2.5Ohm
SPST - NO
1:1
-
4
16-SOIC
16-SOIC (0.295", 7.50mm Width)
Surface Mount
0°C ~ 70°C (TA)
-
RFQ
ADG706BRU
Analog Devices Inc.
IC MUX 16:1 4.5OHM 28TSSOP
במלאי16050 pcs
32ns, 16ns (Typ)
8pC
13pF, 180pF
100pA
-80dB @ 1MHz
±2.5V
-
ADG706
Tube
1.8V ~ 5.5V
4.5Ohm
-
16:1
25MHz
1
28-TSSOP
28-TSSOP (0.173', 4.40mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
BU4052BCF-E2
Rohm Semiconductor
IC SWITCH SP4T X 2 160OHM 16SOP
במלאי75010 pcs
-
-
10pF
300nA
-
-
-
BU4052
Tape & Reel (TR)
3V ~ 18V
160Ohm
SP4T
4:1
-
2
16-SOP
16-SOIC (0.173", 4.40mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
DG456EQ-T1-E3
Vishay Siliconix
IC SW SPST-NO/NC 5.3OHM 16TSSOP
במלאי11185 pcs
118ns, 97ns
22pC
31pf, 34pF
500pA
-85dB @ 1MHz
±5V ~ 15V
120mOhm
DG456
Tape & Reel (TR)
12V ~ 36V
5.3Ohm
SPST - NO/NC
1:1
-
4
16-TSSOP
16-TSSOP (0.173", 4.40mm Width)
Surface Mount
-40°C ~ 125°C (TA)
-
RFQ
MAX4568EUK+T
Analog Devices Inc./Maxim Integrated
IC SWITCH SPST-NOX1 70OHM SOT23
במלאי23307 pcs
150ns, 80ns
6pC
20pF, 12pF
500pA
-
-
500mOhm
MAX4568
Tape & Reel (TR)
1.8V ~ 12V
70Ohm
SPST - NO
1:1
-
1
SOT-23-5
SC-74A, SOT-753
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
MC74HC4051AFEL
onsemi
IC MUX 8:1 100OHM 16SOEIAJ
במלאי16380 pcs
-
-
130pF
200nA
-
±2V ~ 6V
10Ohm
74HC4051
Tape & Reel (TR)
2V ~ 6V
100Ohm
-
8:1
80MHz
1
16-SOEIAJ
16-SOIC (0.209", 5.30mm Width)
Surface Mount
-55°C ~ 125°C (TA)
-
RFQ
DG305ACJ+
Analog Devices Inc./Maxim Integrated
IC SWITCH SPDT X 1 50OHM 14DIP
במלאי4124 pcs
250ns, 150ns
12pC
14pF, 14pF
5nA
-74dB @ 500kHz
±5V ~ 18V
-
DG305
Tube
-
50Ohm
SPDT
2:1
-
1
14-PDIP
14-DIP (0.300', 7.62mm)
Through Hole
0°C ~ 70°C (TA)
-
RFQ
ADG1633BRUZ-REEL7
Analog Devices Inc.
IC SWITCH SPDTX3 4.5OHM 16TSSOP
במלאי5436 pcs
38ns, 152ns
-12.4pC
19pF, 32pF
100pA
-64dB @ 1MHz
±3.3V ~ 8V
120mOhm
ADG1633
Tape & Reel (TR)
3.3V ~ 16V
4.5Ohm
SPDT
2:1
109MHz
3
16-TSSOP
16-TSSOP (0.173', 4.40mm Width)
Surface Mount
-40°C ~ 125°C (TA)
-
RFQ
MAX4651EUE+
Analog Devices Inc./Maxim Integrated
IC SWITCH SPST-NCX4 4OHM 16TSSOP
במלאי13856 pcs
14ns, 8ns
2pC
16pF, 16pF
100pA
-100dB @ 1MHz
-
50mOhm
MAX4651
Tube
1.8V ~ 5.5V
4Ohm
SPST - NC
1:1
-
4
16-TSSOP
16-TSSOP (0.173', 4.40mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
DG412EUE+T
Analog Devices Inc./Maxim Integrated
IC SW SPST-NOX4 45OHM 16TSSOP
במלאי13316 pcs
175ns, 145ns
5pC
9pF, 9pF
250pA
-85dB @ 1MHz
±4.5V ~ 20V
3Ohm (Max)
DG412
Tape & Reel (TR)
10V ~ 30V
45Ohm
SPST - NO
1:1
-
4
16-TSSOP
16-TSSOP (0.173", 4.40mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ
DG417DY-T1
Vishay Siliconix
IC SWITCH SPST-NCX1 35OHM 8SOIC
במלאי6610 pcs
175ns, 145ns
60pC
8pF, 8pF
250pA
-
±15V
-
DG417
Tape & Reel (TR)
12V
35Ohm
SPST - NC
1:1
-
1
8-SOIC
8-SOIC (0.154', 3.90mm Width)
Surface Mount
-40°C ~ 85°C (TA)
-
RFQ