INA186A1QDDFRQ1
Texas Instruments
AEC-Q100, 40-V, BIDIRECTIONAL, H
vorrätig50070 pcs
45 kHz
Tape & Reel (TR)
-
5.5 V
1.7 V
-
-
-
-
3 µV
500 pA
-
-
0.3V/µs
-
Current Sense
1
TSOT-23-8
SOT-23-8
Rail-to-Rail
Surface Mount
-40°C ~ 125°C (TA)
48µA
Automotive, AEC-Q100
-
-
RFQ
LM158AJ
Texas Instruments
IC OPAMP GP 2 CIRCUIT 8CDIP
vorrätig17090 pcs
-
Bulk
-
30 V
3 V
-
-
-
-
2 mV
15 nA
700 kHz
-
0.3V/µs
40 mA
General Purpose
2
8-CDIP
8-CDIP (0.300", 7.62mm)
-
Through Hole
-55°C ~ 125°C (TA)
500µA (x2 Channels)
Automotive, AEC-Q100
-
-
RFQ
APX4558S-13
Diodes Incorporated
IC OPAMP GP 2 CIRCUIT 8SO
vorrätig8240 pcs
-
Tape & Reel (TR)
APX4558
30 V
5 V
-
-
-
-
500 µV
150 nA
3 MHz
-
1.7V/µs
30 mA
General Purpose
2
8-SO
8-SOIC (0.154", 3.90mm Width)
-
Surface Mount
0°C ~ 105°C
2.5mA (x2 Channels)
-
-
-
RFQ
TL074ACNSR
Texas Instruments
IC OPAMP JFET 4 CIRCUIT 14SO
vorrätig105150 pcs
-
Tape & Reel (TR)
TL074
30 V
10 V
-
-
-
-
3 mV
65 pA
3 MHz
-
13V/µs
-
J-FET
4
14-SO
14-SOIC (0.209", 5.30mm Width)
-
Surface Mount
0°C ~ 70°C (TA)
1.4mA (x4 Channels)
-
-
-
RFQ
LMH6654MFX
Texas Instruments
IC OPAMP VFB 1 CIRCUIT SOT23-5
vorrätig17310 pcs
-
Bulk
-
12 V
4.5 V
-
-
-
-
1 mV
5 µA
260 MHz
-
200V/µs
120 mA
Voltage Feedback
1
SOT-23-5
SC-74A, SOT-753
-
Surface Mount
-40°C ~ 85°C
4.5mA
LMH®
-
-
RFQ
MAX9643TASA+T
Analog Devices Inc./Maxim Integrated
IC CURRENT SENSE 1 CIRCUIT 8DFN
vorrätig11980 pcs
-
Tape & Reel (TR)
MAX9643
36 V
2.7 V
-
-
-
-
10 µV
35 µA
15 MHz
-
12V/µs
3.39 mA
Current Sense
1
8-DFN (3x2)
8-WFDFN Exposed Pad
-
Surface Mount
-40°C ~ 125°C
1mA
-
-
-
RFQ
AD518JN
Analog Devices Inc.
IC OPAMP GP 1 CIRCUIT 8DIP
vorrätig12536 pcs
-
Bulk
-
10 V
10 V
-
-
-
-
2 mV
120 nA
12 MHz
-
70V/µs
10 mA
General Purpose
1
8-PDIP
8-DIP (0.300", 7.62mm)
-
Through Hole
-55°C ~ 70°C
5µA
-
-
-
RFQ
NJM2904CV-TE1
Nisshinbo Micro Devices Inc.
IC OPAMP GP 2 CIRCUIT 8SSOP
vorrätig203620 pcs
-
Tape & Reel (TR)
NJM2904
32 V
3 V
-
-
-
-
500 µV
20 nA
1.1 MHz
-
0.6V/µs
40 mA
General Purpose
2
8-SSOP
8-LSSOP (0.173", 4.40mm Width)
-
Surface Mount
-40°C ~ 125°C
700µA
-
-
-
RFQ
NJM082BL
Nisshinbo Micro Devices Inc.
IC OPAMP JFET 2 CIRCUIT 8SSOP
vorrätig5530 pcs
-
Tube
-
36 V
8 V
-
-
-
-
5 mV
30 pA
3 MHz
-
13V/µs
-
J-FET
2
8-SSOP
8-LSSOP (0.173", 4.40mm Width)
-
Surface Mount
-40°C ~ 85°C
3mA
-
-
-
RFQ
EL8401ISZ-T13
Intersil
IC OPAMP GP 4 CIRCUIT 14SOIC
vorrätig4253 pcs
200 MHz
Bulk
-
5 V
3 V
-
-
-
-
800 µV
1.6 µA
100 MHz
-
200V/µs
65 mA
General Purpose
4
14-SOIC
14-SOIC (0.154", 3.90mm Width)
Rail-to-Rail
Surface Mount
-40°C ~ 85°C
2mA (x4 Channels)
EL8401
-
-
RFQ
LMP7704MTX
Texas Instruments
IC OPAMP GP 2.5MHZ RRO 14TSSOP
vorrätig11550 pcs
-
-
-
-
-
1 (Unlimited)
Contains lead / RoHS non-compliant
LMP7704
Tape & Reel (TR)
37µV
0.2pA
2.5MHz
2.7 V ~ 12 V, ±1.35 V ~ 6 V
1.1 V/µs
86mA
General Purpose
4
14-TSSOP
14-TSSOP (0.173", 4.40mm Width)
Rail-to-Rail
Surface Mount
-40°C ~ 125°C
3.2mA
LMP®
General Purpose Amplifier 4 Circuit Rail-to-Rail 14-TSSOP
-
RFQ
LM611CMX
Texas Instruments
IC OPAMP GP 800KHZ 14SOIC
vorrätig6210 pcs
-
-
-
-
-
1 (Unlimited)
Contains lead / RoHS non-compliant
LM611
Tape & Reel (TR)
1.5mV
25nA
800kHz
4 V ~ 32 V, ±2 V ~ 16 V
0.7 V/µs
25mA
General Purpose
1
14-SOIC
14-SOIC (0.154", 3.90mm Width)
-
Surface Mount
0°C ~ 70°C
210µA
Super-Block™
General Purpose Amplifier 1 Circuit 14-SOIC
-
RFQ
OPA830IDBVRG4
Texas Instruments
IC OPAMP VFB 110MHZ SOT23-5
vorrätig52680 pcs
310MHz
-
-
-
-
2 (1 Year)
Lead free / RoHS Compliant
OPA830
Tape & Reel (TR)
1.5mV
5µA
110MHz
2.8 V ~ 11 V, ±1.4 V ~ 5.5 V
600 V/µs
85mA
Voltage Feedback
1
SOT-23-5
SC-74A, SOT-753
-
Surface Mount
-40°C ~ 85°C
4.25mA
-
Voltage Feedback Amplifier 1 Circuit SOT-23-5
-
RFQ
MAX4130EUK
Analog Devices Inc./Maxim Integrated
IC OPAMP GP 1 CIRCUIT SOT23-5
vorrätig13576 pcs
-
Bulk
-
6.5 V
2.7 V
-
-
-
-
350 µV
50 nA
10 MHz
-
4V/µs
50 mA
General Purpose
1
SOT-23-5
SC-74A, SOT-753
Rail-to-Rail
Surface Mount
-40°C ~ 85°C
1mA
-
-
-
RFQ
TLV2334IDR
Texas Instruments
IC OPAMP GP 4 CIRCUIT 14SOIC
vorrätig26993 pcs
-
Bulk
-
8 V
2 V
-
-
-
-
1.1 mV
0.6 pA
525 kHz
-
0.43V/µs
30 mA
General Purpose
4
14-SOIC
14-SOIC (0.154", 3.90mm Width)
-
Surface Mount
-40°C ~ 85°C
210µA (x4 Channels)
LinCMOS™
-
-
RFQ
OPA207IDBVT
Texas Instruments
IC OPAMP GP 1 CIRCUIT SOT23-5
vorrätig24379 pcs
-
Tape & Reel (TR)
OPA207
36 V
4.5 V
-
-
-
-
15 µV
200 pA
1.3 MHz
-
2.7V/µs
40 mA
General Purpose
1
SOT-23-5
SC-74A, SOT-753
Rail-to-Rail
Surface Mount
-40°C ~ 125°C
350µA
-
-
-
RFQ
LMH6654MA
Texas Instruments
VIDEO AMPLIFIER, 1 FUNC, BIPOLAR
vorrätig68630 pcs
-
Bulk
-
12 V
5 V
-
-
-
-
1 mV
5 µA
260 MHz
-
200V/µs
120 mA
Voltage Feedback
1
8-SOIC
8-SOIC (0.154", 3.90mm Width)
-
Surface Mount
-40°C ~ 85°C
4.5mA
LMH®
-
-
RFQ
TLV2211CDBVRG4
Texas Instruments
IC OPAMP GP 65KHZ RRO SOT23-5
vorrätig64610 pcs
-
-
-
-
-
1 (Unlimited)
Lead free / RoHS Compliant
TLV2211
Tape & Reel (TR)
450µV
1pA
65kHz
2.7 V ~ 10 V, ±1.35 V ~ 5 V
0.025 V/µs
50mA
General Purpose
1
SOT-23-5
SC-74A, SOT-753
Rail-to-Rail
Surface Mount
0°C ~ 70°C
13µA
LinCMOS™
General Purpose Amplifier 1 Circuit Rail-to-Rail SOT-23-5
24 Weeks
RFQ
INA180B3QDBVRQ1
Texas Instruments
IC CURR SENSE 1 CIRCUIT SOT23-5
vorrätig208890 pcs
150 kHz
Tape & Reel (TR)
INA180
5.5 V
2.7 V
-
-
-
-
100 µV
80 µA
-
-
2V/µs
-
Current Sense
1
SOT-23-5
SC-74A, SOT-753
Rail-to-Rail
Surface Mount
-40°C ~ 125°C (TA)
197µA
Automotive, AEC-Q100
-
-
RFQ
LT1230CS
Linear Technology
LT1230 - QUAD 100MHZ CURRENT FEE
vorrätig3629 pcs
100 MHz
Bulk
-
30 V
4 V
-
-
-
-
3 mV
10 µA
-
-
700V/µs
125 mA
Current Feedback
4
14-SO
14-SOIC (0.154", 3.90mm Width)
-
Surface Mount
0°C ~ 70°C
6mA (x4 Channels)
LT®
-
-
RFQ
AD524CE
Analog Devices Inc.
IC INST AMP 1 CIRCUIT 20CLCC
vorrätig813 pcs
-
Bulk
-
36 V
12 V
-
-
-
-
50 µV
15 nA
1 MHz
-
5V/µs
-
Instrumentation
1
20-CLCC (8.89x8.89)
20-CLCC
-
Surface Mount
-40°C ~ 85°C
3.5mA
-
-
-
RFQ
HFA1305IB
Intersil
IC OPAMP CFA 3 CIRCUIT 14SOIC
vorrätig8270 pcs
375 MHz
Bulk
-
11 V
9 V
-
-
-
-
2 mV
6 µA
-
-
2500V/µs
60 mA
Current Feedback
3
14-SOIC
14-SOIC (0.154", 3.90mm Width)
-
Surface Mount
-40°C ~ 85°C
5.8mA
-
-
-
RFQ
OP32FP
Analog Devices Inc.
IC OPAMP GP 1 CIRCUIT 8DIP
vorrätig8040 pcs
-
Bulk
-
30 V
3 V
-
-
-
-
200 µV
70 nA
4.5 MHz
-
1.5V/µs
-
General Purpose
1
8-PDIP
8-DIP (0.300", 7.62mm)
-
Through Hole
-25°C ~ 85°C
350µA
-
-
-
RFQ
AD8574ARZ-REEL7
Analog Devices Inc.
IC OPAMP ZERO-DRIFT 4CIRC 14SOIC
vorrätig5549 pcs
-
Tape & Reel (TR)
AD8574
5 V
2.7 V
-
-
-
-
1 µV
1 nA
1.5 MHz
-
0.4V/µs
30 mA
Zero-Drift
4
14-SOIC
14-SOIC (0.154", 3.90mm Width)
Rail-to-Rail
Surface Mount
-40°C ~ 125°C
850µA (x4 Channels)
-
-
-
RFQ
LMC6001BIN
Texas Instruments
IC OPAMP GP 1.3MHZ RRO 8DIP
vorrätig12870 pcs
-
-
-
-
-
1 (Unlimited)
Contains lead / RoHS non-compliant
LMC6001
Tube
1mV
0.01pA
1.3MHz
4.5 V ~ 15.5 V, ±2.25 V ~ 7.75 V
1.5 V/µs
34mA
General Purpose
1
8-PDIP
8-DIP (0.300", 7.62mm)
Rail-to-Rail
Through Hole
-40°C ~ 85°C
550µA
-
General Purpose Amplifier 1 Circuit Rail-to-Rail 8-PDIP
-
RFQ
MAX402EPA
Analog Devices Inc./Maxim Integrated
IC OPAMP GP 1 CIRCUIT 8DIP
vorrätig4700 pcs
-
Bulk
-
5.5 V
4.5 V
-
-
-
-
500 µV
2 nA
2 MHz
-
6V/µs
3 mA
General Purpose
1
8-PDIP
8-DIP (0.300", 7.62mm)
-
Through Hole
-40°C ~ 85°C
60µA
-
-
-
RFQ
BA10324AF
Rohm Semiconductor
IC OPAMP GP 4 CIRCUIT 14SOP
vorrätig5150 pcs
-
Tape & Reel (TR)
-
32 V
3 V
-
-
-
-
2 mV
20 nA
500 kHz
-
0.2V/µs
35 mA
General Purpose
4
14-SOP
14-SOIC (0.173", 4.40mm Width)
-
Surface Mount
-40°C ~ 85°C
600µA
-
-
-
RFQ
INA293A2QDBVRQ1
Texas Instruments
IC CURR SENSE 1 CIRCUIT SOT23-5
vorrätig17207 pcs
1.3 MHz
Tape & Reel (TR)
INA293
20 V
2.7 V
-
-
-
-
15 µV
20 µA
-
-
2.5V/µs
-
Current Sense
1
SOT-23-5
SC-74A, SOT-753
-
Surface Mount
-40°C ~ 125°C (TA)
1.5mA
Automotive, AEC-Q100
-
-
RFQ
ISL28246FBZ
Intersil
ISL28246 - OPERATIONAL AMPLIFIER
vorrätig14922 pcs
13 MHz
Bulk
-
5.5 V
2.4 V
-
-
-
-
30 µV
16 nA
5 MHz
-
1.9V/µs
56 mA
General Purpose
2
8-SOIC
8-SOIC (0.154", 3.90mm Width)
Rail-to-Rail
Surface Mount
-40°C ~ 125°C
1mA (x2 Channels)
-
-
-
RFQ
LMV824MTX
Texas Instruments
IC OPAMP GP 4 CIRCUIT 14TSSOP
vorrätig9220 pcs
-
Bulk
-
5.5 V
2.5 V
-
-
-
-
1 mV
40 nA
5.6 MHz
-
2V/µs
45 mA
General Purpose
4
14-TSSOP
14-TSSOP (0.173", 4.40mm Width)
Rail-to-Rail
Surface Mount
-40°C ~ 85°C
1mA (x4 Channels)
Automotive, AEC-Q100, LMV®
-
-
RFQ
AD8040AR
Analog Devices Inc.
IC AMP GP R-R QUAD LP 14SOIC
vorrätig4330 pcs
125 MHz
Tube
AD8040
12 V
2.7 V
-
-
-
-
1.6 mV
700 nA
-
-
63V/µs
170 mA
General Purpose
4
14-SOIC
14-SOIC (0.154", 3.90mm Width)
Rail-to-Rail
Surface Mount
-40°C ~ 125°C
1.4mA (x4 Channels)
-
-
-
RFQ
LTC6102HMS8-1
Linear Technology
IC CURRENT SENSE 1 CIRCUIT 8MSOP
vorrätig5750 pcs
-
Bulk
-
60 V
4 V
-
-
-
-
5 µV
60 pA
200 kHz
-
-
1 mA
Current Sense
1
8-MSOP
8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
-
Surface Mount
-40°C ~ 125°C
420µA
-
-
-
RFQ
TLE2071AMJGB
Texas Instruments
IC OPAMP JFET 1 CIRCUIT 8CDIP
vorrätig2484 pcs
-
Bulk
-
38 V
4.5 V
-
-
-
-
470 µV
20 pA
10 MHz
-
45V/µs
48 mA
J-FET
1
8-CDIP
8-CDIP (0.300", 7.62mm)
-
Through Hole
-55°C ~ 125°C (TA)
1.6mA
-
-
-
RFQ
LT1469CS8
Linear Technology
IC OPAMP GP 2 CIRCUIT 8SO
vorrätig16390 pcs
-
Bulk
-
9 V
5 V
-
-
-
-
50 µV
3 nA
90 MHz
-
22V/µs
22 mA
General Purpose
2
8-SO
8-SOIC (0.154", 3.90mm Width)
-
Surface Mount
0°C ~ 70°C
4.1mA (x2 Channels)
LT®
-
-
RFQ
ADA4861-3YRZ
Analog Devices Inc.
IC OPAMP CFA 3 CIRCUIT 14SOIC
vorrätig20616 pcs
370 MHz
Tube
ADA4861
12 V
5 V
-
-
-
-
100 µV
2.9 µA
-
-
680V/µs
100 mA
Current Feedback
3
14-SOIC
14-SOIC (0.154", 3.90mm Width)
-
Surface Mount
-40°C ~ 105°C
17.9mA
-
-
-
RFQ
LM2904MX
Texas Instruments
LM2904-N LOW POWER DUAL OPERATIO
vorrätig62990 pcs
-
Bulk
-
26 V
3 V
-
-
-
-
2 mV
45 nA
1 MHz
-
-
40 mA
General Purpose
2
8-SOIC
8-SOIC (0.154", 3.90mm Width)
-
Surface Mount
-40°C ~ 85°C
800µA (x2 Channels)
-
-
-
RFQ
KA258ADTF
Fairchild Semiconductor
IC OPAMP GP 2 CIRCUIT 8SOIC
vorrätig241050 pcs
-
Bulk
-
32 V
3 V
-
-
-
-
1 mV
40 nA
-
-
-
30 mA
General Purpose
2
8-SOIC
8-SOIC (0.154", 3.90mm Width)
-
Surface Mount
-25°C ~ 85°C
800µA
-
-
-
RFQ
AD741JH
Analog Devices Inc.
IC OPAMP GP 1 CIRCUIT TO99-8
vorrätig13092 pcs
1 MHz
Bulk
-
44 V
10 V
-
-
-
-
1 mV
40 nA
-
-
0.5V/µs
25 mA
General Purpose
1
TO-99-8
TO-99-8 Metal Can
-
Through Hole
0°C ~ 70°C
2.2mA
-
-
-
RFQ
OPA694IDBVTG4
Texas Instruments
IC OPAMP CFA 1.5GHZ SOT23-5
vorrätig17777 pcs
1.5GHz
-
-
-
-
1 (Unlimited)
Lead free / RoHS Compliant
OPA694
Tape & Reel (TR)
500µV
5µA
-
7 V ~ 12.6 V, ±3.5 V ~ 6.3 V
1700 V/µs
80mA
Current Feedback
1
SOT-23-5
SC-74A, SOT-753
-
Surface Mount
-40°C ~ 85°C
5.8mA
-
Current Feedback Amplifier 1 Circuit SOT-23-5
20 Weeks
RFQ
MAX408CPA
Analog Devices Inc./Maxim Integrated
IC OPAMP GP 1 CIRCUIT 8DIP
vorrätig7774 pcs
-
Bulk
-
8 V
8 V
-
-
-
-
5 mV
650 nA
100 MHz
-
90V/µs
-
General Purpose
1
8-PDIP
8-DIP (0.300", 7.62mm)
-
Through Hole
0°C ~ 70°C
7mA
-
-
-
RFQ
LT6010ACS8#PBF
Linear Technology
LT6010 - RAIL-TO-RAIL OUTPUT PRE
vorrätig12490 pcs
-
Bulk
-
36 V
2.7 V
-
-
-
-
10 µV
20 pA
350 kHz
-
0.11V/µs
20 mA
General Purpose
1
8-SO
8-SOIC (0.154", 3.90mm Width)
-
Surface Mount
0°C ~ 70°C
260µA
*
-
-
RFQ
AS358MTR-E1
Diodes Incorporated
IC OPAMP GP 2 CIRCUIT 8SOIC
vorrätig180370 pcs
-
Tape & Reel (TR)
AS358
36 V
3 V
-
-
-
-
2 mV
20 nA
-
-
-
40 mA
General Purpose
2
8-SOIC
8-SOIC (0.154", 3.90mm Width)
-
Surface Mount
-40°C ~ 85°C (TA)
700µA (x2 Channels)
-
-
-
RFQ
TLC271ACDRG4
Texas Instruments
IC OPAMP GP 2.2MHZ 8SOIC
vorrätig115550 pcs
-
-
-
-
-
1 (Unlimited)
Lead free / RoHS Compliant
TLC271A
Tape & Reel (TR)
900µV
0.7pA
2.2MHz
3 V ~ 16 V, ±1.5 V ~ 8 V
5.3 V/µs
30mA
General Purpose
1
8-SOIC
8-SOIC (0.154", 3.90mm Width)
-
Surface Mount
0°C ~ 70°C
950µA
LinCMOS™
General Purpose Amplifier 1 Circuit 8-SOIC
13 Weeks
RFQ
AD8506ACBZ-REEL7
Analog Devices Inc.
IC CMOS 2 CIRCUIT 8WLCSP
vorrätig30240 pcs
-
Tape & Reel (TR)
AD8506
5 V
1.8 V
-
-
-
-
500 µV
1 pA
95 kHz
-
0.013V/µs
45 mA
CMOS
2
8-WLCSP (1.42x1.42)
8-UFBGA, WLCSP
Rail-to-Rail
Surface Mount
-40°C ~ 125°C
15µA (x2 Channels)
-
-
-
RFQ
ISO122P
Texas Instruments
IC OPAMP ISOLATION 1 CIRC 8DIP
vorrätig1049 pcs
50 kHz
Tube
ISO122
36 V
9 V
-
-
-
-
20 mV
-
-
-
2V/µs
15 mA
Isolation
1
8-PDIP
16-DIP (0.300", 7.62mm), 8 Leads
-
Through Hole
-25°C ~ 85°C
5mA
-
-
-
RFQ
AD8426ACPZ-WP
Analog Devices Inc.
IC INST AMP 2 CIRCUIT 16LFCSP
vorrätig9931 pcs
1 MHz
Tray
AD8426
36 V
2.7 V
-
-
-
-
200 µV
20 nA
-
-
0.6V/µs
13 mA
Instrumentation
2
16-LFCSP-VQ (4x4)
16-VQFN, CSP
Rail-to-Rail
Surface Mount
-40°C ~ 125°C
350µA (x2 Channels)
-
-
-
RFQ
RT9136GF
Richtek USA Inc.
IC QUAD OP AMP MSOP-10
vorrätig98300 pcs
12 MHz
Tape & Reel (TR)
-
15 V
4.5 V
-
-
-
-
2 mV
2 nA
-
-
12V/µs
120 mA
General Purpose
4
10-MSOP
10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Rail-to-Rail
Surface Mount
-40°C ~ 85°C (TA)
500µA (x4 Channels)
-
-
-
RFQ
TLV9351QDBVRQ1
Texas Instruments
IC OPAMP
vorrätig93850 pcs
-
Tape & Reel (TR)
-
40 V
4.5 V
-
-
-
-
350 mV
10 pA
3.5 MHz
-
20V/µs
60 mA
General Purpose
1
SOT-23-5
SC-74A, SOT-753
Push-Pull
Surface Mount
-40°C ~ 125°C (TA)
650µA
Automotive, AEC-Q100
-
-
RFQ
MC4558CD
Fairchild Semiconductor
IC OPAMP GP 2 CIRCUIT 8SOIC
vorrätig256950 pcs
-
Tube
-
40 V
4 V
-
-
-
-
1 mV
50 nA
5.5 MHz
-
2.2V/µs
20 mA
General Purpose
2
8-SOIC
8-SOIC (0.154", 3.90mm Width)
-
Surface Mount
0°C ~ 70°C
2.3mA
-
-
-
RFQ
LMC8101BPX
Texas Instruments
IC OPAMP GP 1 CIRCUIT 8DSBGA
vorrätig57540 pcs
-
Bulk
-
10 V
2.7 V
-
-
-
-
700 µV
1 pA
1.3 MHz
-
1.2V/µs
-
General Purpose
1
8-DSBGA
8-VFBGA
Rail-to-Rail
Surface Mount
-40°C ~ 85°C
1.1mA
-
-
-
RFQ