10,000+ Happy Customers
20+ Years in Business
75,000+ SKUs in Stock
80+ Authorized Manufacturers
Helping Tech Companies Create What’s Next!
phoneCall +1.949.783.7300
GET A
QUOTE

Analog Switches, Multiplexers, Demultiplexers

Suntsu Electronics: Your source for high-performance analog switches, multiplexers, and demultiplexers. Our advanced part search tool streamlines the process of finding the ideal components for your application. Search by part number, manufacturer, or specifications related to your project’s requirements. Access our extensive database and discover the perfect solution for your analog signal routing needs. In industrial control systems, similar signal routing principles are applied in physical input devices such as foot switches, where user-initiated actions must be reliably converted into system-level control signals.

Part Search

CLEAR SEARCH
Total Products: 8,347
ImageData
Sheet		Part NumberManufacturerDescriptionCategoryDevice PackageVoltageOperating
Temp		Additional SpecificationsQtyGet A
Quote
MAX4666ESE+T
MAX4666ESE+TAnalog Devices Inc.IC SW SPST-NO/NCX4 4OHM 16SOICAnalog Switches, Multiplexers, Demultiplexers16-SOICN/A-40°C ~ 85°C (TA)
Switch Circuit:
SPST – NO/NC
Multiplexer/Demultiplexer Circuit:
1:1
Number of Circuits:
4
On-State Resistance (Max):
4Ohm
Channel-to-Channel Matching (ΔRon):
200mOhm
Voltage – Supply, Single (V+):
4.5V ~ 36V
Voltage – Supply, Dual (V±):
±4.5V ~ 20V
Switch Time (Ton, Toff) (Max):
275ns, 175ns
Charge Injection:
300pC
Channel Capacitance (CS(off), CD(off)):
34pF, 34pF
Current – Leakage (IS(off)) (Max):
500pA
Crosstalk:
-60dB @ 1MHz
Operating Temperature:
-40°C ~ 85°C (TA)
Mounting Type:
Surface Mount
Package / Case:
16-SOIC (0.154″”, 3.90mm Width)
Supplier Device Package:
16-SOIC
1,097
GET A
QUOTE
MAX4667CSE
MAX4667CSEAnalog Devices Inc.IC SW SPST-NCX2 2.5OHM 16SOICAnalog Switches, Multiplexers, Demultiplexers16-SOICN/A0°C ~ 70°C (TA)
Switch Circuit:
SPST – NC
Multiplexer/Demultiplexer Circuit:
1:1
Number of Circuits:
2
On-State Resistance (Max):
2.5Ohm
Channel-to-Channel Matching (ΔRon):
50mOhm
Voltage – Supply, Single (V+):
4.5V ~ 36V
Voltage – Supply, Dual (V±):
±4.5V ~ 20V
Switch Time (Ton, Toff) (Max):
275ns, 175ns
Charge Injection:
450pC
Channel Capacitance (CS(off), CD(off)):
65pF, 65pF
Current – Leakage (IS(off)) (Max):
500pA
Crosstalk:
-66dB @ 1MHz
Operating Temperature:
0°C ~ 70°C (TA)
Mounting Type:
Surface Mount
Package / Case:
16-SOIC (0.154″”, 3.90mm Width)
Supplier Device Package:
16-SOIC
1,660
GET A
QUOTE
MAX4667EPE
MAX4667EPEAnalog Devices Inc.IC SWITCH SPST-NCX2 2.5OHM 16DIPAnalog Switches, Multiplexers, Demultiplexers16-PDIPN/A-40°C ~ 85°C (TA)
Switch Circuit:
SPST – NC
Multiplexer/Demultiplexer Circuit:
1:1
Number of Circuits:
2
On-State Resistance (Max):
2.5Ohm
Channel-to-Channel Matching (ΔRon):
50mOhm
Voltage – Supply, Single (V+):
4.5V ~ 36V
Voltage – Supply, Dual (V±):
±4.5V ~ 20V
Switch Time (Ton, Toff) (Max):
275ns, 175ns
Charge Injection:
450pC
Channel Capacitance (CS(off), CD(off)):
65pF, 65pF
Current – Leakage (IS(off)) (Max):
500pA
Crosstalk:
-66dB @ 1MHz
Operating Temperature:
-40°C ~ 85°C (TA)
Mounting Type:
Through Hole
Package / Case:
16-DIP (0.300″”, 7.62mm)
Supplier Device Package:
16-PDIP
1,020
GET A
QUOTE
MAX4667ESE
MAX4667ESEAnalog Devices Inc.IC SW SPST-NCX2 2.5OHM 16SOICAnalog Switches, Multiplexers, Demultiplexers16-SOICN/A-40°C ~ 85°C (TA)
Switch Circuit:
SPST – NC
Multiplexer/Demultiplexer Circuit:
1:1
Number of Circuits:
2
On-State Resistance (Max):
2.5Ohm
Channel-to-Channel Matching (ΔRon):
50mOhm
Voltage – Supply, Single (V+):
4.5V ~ 36V
Voltage – Supply, Dual (V±):
±4.5V ~ 20V
Switch Time (Ton, Toff) (Max):
275ns, 175ns
Charge Injection:
450pC
Channel Capacitance (CS(off), CD(off)):
65pF, 65pF
Current – Leakage (IS(off)) (Max):
500pA
Crosstalk:
-66dB @ 1MHz
Operating Temperature:
-40°C ~ 85°C (TA)
Mounting Type:
Surface Mount
Package / Case:
16-SOIC (0.154″”, 3.90mm Width)
Supplier Device Package:
16-SOIC
781
GET A
QUOTE
MAX4667ESE+
MAX4667ESE+Analog Devices Inc.IC SW SPST-NCX2 2.5OHM 16SOICAnalog Switches, Multiplexers, Demultiplexers16-SOICN/A-40°C ~ 85°C (TA)
Switch Circuit:
SPST – NC
Multiplexer/Demultiplexer Circuit:
1:1
Number of Circuits:
2
On-State Resistance (Max):
2.5Ohm
Channel-to-Channel Matching (ΔRon):
50mOhm
Voltage – Supply, Single (V+):
4.5V ~ 36V
Voltage – Supply, Dual (V±):
±4.5V ~ 20V
Switch Time (Ton, Toff) (Max):
275ns, 175ns
Charge Injection:
450pC
Channel Capacitance (CS(off), CD(off)):
65pF, 65pF
Current – Leakage (IS(off)) (Max):
500pA
Crosstalk:
-66dB @ 1MHz
Operating Temperature:
-40°C ~ 85°C (TA)
Mounting Type:
Surface Mount
Package / Case:
16-SOIC (0.154″”, 3.90mm Width)
Supplier Device Package:
16-SOIC
964
GET A
QUOTE
MAX4667ESE+T
MAX4667ESE+TAnalog Devices Inc.IC SW SPST-NCX2 2.5OHM 16SOICAnalog Switches, Multiplexers, Demultiplexers16-SOICN/A-40°C ~ 85°C (TA)
Switch Circuit:
SPST – NC
Multiplexer/Demultiplexer Circuit:
1:1
Number of Circuits:
2
On-State Resistance (Max):
2.5Ohm
Channel-to-Channel Matching (ΔRon):
50mOhm
Voltage – Supply, Single (V+):
4.5V ~ 36V
Voltage – Supply, Dual (V±):
±4.5V ~ 20V
Switch Time (Ton, Toff) (Max):
275ns, 175ns
Charge Injection:
450pC
Channel Capacitance (CS(off), CD(off)):
65pF, 65pF
Current – Leakage (IS(off)) (Max):
500pA
Crosstalk:
-66dB @ 1MHz
Operating Temperature:
-40°C ~ 85°C (TA)
Mounting Type:
Surface Mount
Package / Case:
16-SOIC (0.154″”, 3.90mm Width)
Supplier Device Package:
16-SOIC
5
GET A
QUOTE
MAX4668CPE
MAX4668CPEAnalog Devices Inc.IC SWITCH SPST-NOX2 2.5OHM 16DIPAnalog Switches, Multiplexers, Demultiplexers16-PDIPN/A0°C ~ 70°C (TA)
Switch Circuit:
SPST – NO
Multiplexer/Demultiplexer Circuit:
1:1
Number of Circuits:
2
On-State Resistance (Max):
2.5Ohm
Channel-to-Channel Matching (ΔRon):
50mOhm
Voltage – Supply, Single (V+):
4.5V ~ 36V
Voltage – Supply, Dual (V±):
±4.5V ~ 20V
Switch Time (Ton, Toff) (Max):
275ns, 175ns
Charge Injection:
450pC
Channel Capacitance (CS(off), CD(off)):
65pF, 65pF
Current – Leakage (IS(off)) (Max):
500pA
Crosstalk:
-66dB @ 1MHz
Operating Temperature:
0°C ~ 70°C (TA)
Mounting Type:
Through Hole
Package / Case:
16-DIP (0.300″”, 7.62mm)
Supplier Device Package:
16-PDIP
996
GET A
QUOTE
MAX4668CPE+
MAX4668CPE+Analog Devices Inc.IC SWITCH SPST-NOX2 2.5OHM 16DIPAnalog Switches, Multiplexers, Demultiplexers16-PDIPN/A0°C ~ 70°C (TA)
Switch Circuit:
SPST – NO
Multiplexer/Demultiplexer Circuit:
1:1
Number of Circuits:
2
On-State Resistance (Max):
2.5Ohm
Channel-to-Channel Matching (ΔRon):
50mOhm
Voltage – Supply, Single (V+):
4.5V ~ 36V
Voltage – Supply, Dual (V±):
±4.5V ~ 20V
Switch Time (Ton, Toff) (Max):
275ns, 175ns
Charge Injection:
450pC
Channel Capacitance (CS(off), CD(off)):
65pF, 65pF
Current – Leakage (IS(off)) (Max):
500pA
Crosstalk:
-66dB @ 1MHz
Operating Temperature:
0°C ~ 70°C (TA)
Mounting Type:
Through Hole
Package / Case:
16-DIP (0.300″”, 7.62mm)
Supplier Device Package:
16-PDIP
711
GET A
QUOTE
MAX4668CSE
MAX4668CSEAnalog Devices Inc.IC SW SPST-NOX2 2.5OHM 16SOICAnalog Switches, Multiplexers, Demultiplexers16-SOICN/A0°C ~ 70°C (TA)
Switch Circuit:
SPST – NO
Multiplexer/Demultiplexer Circuit:
1:1
Number of Circuits:
2
On-State Resistance (Max):
2.5Ohm
Channel-to-Channel Matching (ΔRon):
50mOhm
Voltage – Supply, Single (V+):
4.5V ~ 36V
Voltage – Supply, Dual (V±):
±4.5V ~ 20V
Switch Time (Ton, Toff) (Max):
275ns, 175ns
Charge Injection:
450pC
Channel Capacitance (CS(off), CD(off)):
65pF, 65pF
Current – Leakage (IS(off)) (Max):
500pA
Crosstalk:
-66dB @ 1MHz
Operating Temperature:
0°C ~ 70°C (TA)
Mounting Type:
Surface Mount
Package / Case:
16-SOIC (0.154″”, 3.90mm Width)
Supplier Device Package:
16-SOIC
3
GET A
QUOTE
MAX4668CSE+
MAX4668CSE+Analog Devices Inc.IC SW SPST-NOX2 2.5OHM 16SOICAnalog Switches, Multiplexers, Demultiplexers16-SOICN/A0°C ~ 70°C (TA)
Switch Circuit:
SPST – NO
Multiplexer/Demultiplexer Circuit:
1:1
Number of Circuits:
2
On-State Resistance (Max):
2.5Ohm
Channel-to-Channel Matching (ΔRon):
50mOhm
Voltage – Supply, Single (V+):
4.5V ~ 36V
Voltage – Supply, Dual (V±):
±4.5V ~ 20V
Switch Time (Ton, Toff) (Max):
275ns, 175ns
Charge Injection:
450pC
Channel Capacitance (CS(off), CD(off)):
65pF, 65pF
Current – Leakage (IS(off)) (Max):
500pA
Crosstalk:
-66dB @ 1MHz
Operating Temperature:
0°C ~ 70°C (TA)
Mounting Type:
Surface Mount
Package / Case:
16-SOIC (0.154″”, 3.90mm Width)
Supplier Device Package:
16-SOIC
1,112
GET A
QUOTE
MAX4668EPE+
MAX4668EPE+Analog Devices Inc.IC SWITCH SPST-NOX2 2.5OHM 16DIPAnalog Switches, Multiplexers, Demultiplexers16-PDIPN/A-40°C ~ 85°C (TA)
Switch Circuit:
SPST – NO
Multiplexer/Demultiplexer Circuit:
1:1
Number of Circuits:
2
On-State Resistance (Max):
2.5Ohm
Channel-to-Channel Matching (ΔRon):
50mOhm
Voltage – Supply, Single (V+):
4.5V ~ 36V
Voltage – Supply, Dual (V±):
±4.5V ~ 20V
Switch Time (Ton, Toff) (Max):
275ns, 175ns
Charge Injection:
450pC
Channel Capacitance (CS(off), CD(off)):
65pF, 65pF
Current – Leakage (IS(off)) (Max):
500pA
Crosstalk:
-66dB @ 1MHz
Operating Temperature:
-40°C ~ 85°C (TA)
Mounting Type:
Through Hole
Package / Case:
16-DIP (0.300″”, 7.62mm)
Supplier Device Package:
16-PDIP
588
GET A
QUOTE
MAX4668ESE
MAX4668ESEAnalog Devices Inc.IC SW SPST-NOX2 2.5OHM 16SOICAnalog Switches, Multiplexers, Demultiplexers16-SOICN/A-40°C ~ 85°C (TA)
Switch Circuit:
SPST – NO
Multiplexer/Demultiplexer Circuit:
1:1
Number of Circuits:
2
On-State Resistance (Max):
2.5Ohm
Channel-to-Channel Matching (ΔRon):
50mOhm
Voltage – Supply, Single (V+):
4.5V ~ 36V
Voltage – Supply, Dual (V±):
±4.5V ~ 20V
Switch Time (Ton, Toff) (Max):
275ns, 175ns
Charge Injection:
450pC
Channel Capacitance (CS(off), CD(off)):
65pF, 65pF
Current – Leakage (IS(off)) (Max):
500pA
Crosstalk:
-66dB @ 1MHz
Operating Temperature:
-40°C ~ 85°C (TA)
Mounting Type:
Surface Mount
Package / Case:
16-SOIC (0.154″”, 3.90mm Width)
Supplier Device Package:
16-SOIC
324
GET A
QUOTE
MAX4668ESE+
MAX4668ESE+Analog Devices Inc.IC SW SPST-NOX2 2.5OHM 16SOICAnalog Switches, Multiplexers, Demultiplexers16-SOICN/A-40°C ~ 85°C (TA)
Switch Circuit:
SPST – NO
Multiplexer/Demultiplexer Circuit:
1:1
Number of Circuits:
2
On-State Resistance (Max):
2.5Ohm
Channel-to-Channel Matching (ΔRon):
50mOhm
Voltage – Supply, Single (V+):
4.5V ~ 36V
Voltage – Supply, Dual (V±):
±4.5V ~ 20V
Switch Time (Ton, Toff) (Max):
275ns, 175ns
Charge Injection:
450pC
Channel Capacitance (CS(off), CD(off)):
65pF, 65pF
Current – Leakage (IS(off)) (Max):
500pA
Crosstalk:
-66dB @ 1MHz
Operating Temperature:
-40°C ~ 85°C (TA)
Mounting Type:
Surface Mount
Package / Case:
16-SOIC (0.154″”, 3.90mm Width)
Supplier Device Package:
16-SOIC
422
GET A
QUOTE
MAX4668ESE+T
MAX4668ESE+TAnalog Devices Inc.IC SW SPST-NOX2 2.5OHM 16SOICAnalog Switches, Multiplexers, Demultiplexers16-SOICN/A-40°C ~ 85°C (TA)
Switch Circuit:
SPST – NO
Multiplexer/Demultiplexer Circuit:
1:1
Number of Circuits:
2
On-State Resistance (Max):
2.5Ohm
Channel-to-Channel Matching (ΔRon):
50mOhm
Voltage – Supply, Single (V+):
4.5V ~ 36V
Voltage – Supply, Dual (V±):
±4.5V ~ 20V
Switch Time (Ton, Toff) (Max):
275ns, 175ns
Charge Injection:
450pC
Channel Capacitance (CS(off), CD(off)):
65pF, 65pF
Current – Leakage (IS(off)) (Max):
500pA
Crosstalk:
-66dB @ 1MHz
Operating Temperature:
-40°C ~ 85°C (TA)
Mounting Type:
Surface Mount
Package / Case:
16-SOIC (0.154″”, 3.90mm Width)
Supplier Device Package:
16-SOIC
1,419
GET A
QUOTE
MAX4669CPE
MAX4669CPEAnalog Devices Inc.IC SW SPST-NO/NCX2 2.5OHM 16DIPAnalog Switches, Multiplexers, Demultiplexers16-PDIPN/A0°C ~ 70°C (TA)
Switch Circuit:
SPST – NO/NC
Multiplexer/Demultiplexer Circuit:
1:1
Number of Circuits:
2
On-State Resistance (Max):
2.5Ohm
Channel-to-Channel Matching (ΔRon):
50mOhm
Voltage – Supply, Single (V+):
4.5V ~ 36V
Voltage – Supply, Dual (V±):
±4.5V ~ 20V
Switch Time (Ton, Toff) (Max):
275ns, 175ns
Charge Injection:
450pC
Channel Capacitance (CS(off), CD(off)):
65pF, 65pF
Current – Leakage (IS(off)) (Max):
500pA
Crosstalk:
-66dB @ 1MHz
Operating Temperature:
0°C ~ 70°C (TA)
Mounting Type:
Through Hole
Package / Case:
16-DIP (0.300″”, 7.62mm)
Supplier Device Package:
16-PDIP
16
GET A
QUOTE
MAX4669CSE
MAX4669CSEAnalog Devices Inc.IC SW SPST-NO/NCX2 2.5OHM 16SOICAnalog Switches, Multiplexers, Demultiplexers16-SOICN/A0°C ~ 70°C (TA)
Switch Circuit:
SPST – NO/NC
Multiplexer/Demultiplexer Circuit:
1:1
Number of Circuits:
2
On-State Resistance (Max):
2.5Ohm
Channel-to-Channel Matching (ΔRon):
50mOhm
Voltage – Supply, Single (V+):
4.5V ~ 36V
Voltage – Supply, Dual (V±):
±4.5V ~ 20V
Switch Time (Ton, Toff) (Max):
275ns, 175ns
Charge Injection:
450pC
Channel Capacitance (CS(off), CD(off)):
65pF, 65pF
Current – Leakage (IS(off)) (Max):
500pA
Crosstalk:
-66dB @ 1MHz
Operating Temperature:
0°C ~ 70°C (TA)
Mounting Type:
Surface Mount
Package / Case:
16-SOIC (0.154″”, 3.90mm Width)
Supplier Device Package:
16-SOIC
1,797
GET A
QUOTE
MAX4669CSE+
MAX4669CSE+Analog Devices Inc.IC SW SPST-NO/NCX2 2.5OHM 16SOICAnalog Switches, Multiplexers, Demultiplexers16-SOICN/A0°C ~ 70°C (TA)
Switch Circuit:
SPST – NO/NC
Multiplexer/Demultiplexer Circuit:
1:1
Number of Circuits:
2
On-State Resistance (Max):
2.5Ohm
Channel-to-Channel Matching (ΔRon):
50mOhm
Voltage – Supply, Single (V+):
4.5V ~ 36V
Voltage – Supply, Dual (V±):
±4.5V ~ 20V
Switch Time (Ton, Toff) (Max):
275ns, 175ns
Charge Injection:
450pC
Channel Capacitance (CS(off), CD(off)):
65pF, 65pF
Current – Leakage (IS(off)) (Max):
500pA
Crosstalk:
-66dB @ 1MHz
Operating Temperature:
0°C ~ 70°C (TA)
Mounting Type:
Surface Mount
Package / Case:
16-SOIC (0.154″”, 3.90mm Width)
Supplier Device Package:
16-SOIC
1,361
GET A
QUOTE
MAX4669CSE+T
MAX4669CSE+TAnalog Devices Inc.IC SW SPST-NO/NCX2 2.5OHM 16SOICAnalog Switches, Multiplexers, Demultiplexers16-SOICN/A0°C ~ 70°C (TA)
Switch Circuit:
SPST – NO/NC
Multiplexer/Demultiplexer Circuit:
1:1
Number of Circuits:
2
On-State Resistance (Max):
2.5Ohm
Channel-to-Channel Matching (ΔRon):
50mOhm
Voltage – Supply, Single (V+):
4.5V ~ 36V
Voltage – Supply, Dual (V±):
±4.5V ~ 20V
Switch Time (Ton, Toff) (Max):
275ns, 175ns
Charge Injection:
450pC
Channel Capacitance (CS(off), CD(off)):
65pF, 65pF
Current – Leakage (IS(off)) (Max):
500pA
Crosstalk:
-66dB @ 1MHz
Operating Temperature:
0°C ~ 70°C (TA)
Mounting Type:
Surface Mount
Package / Case:
16-SOIC (0.154″”, 3.90mm Width)
Supplier Device Package:
16-SOIC
859
GET A
QUOTE
MAX4669ESE
MAX4669ESEAnalog Devices Inc.IC SW SPST-NO/NCX2 2.5OHM 16SOICAnalog Switches, Multiplexers, Demultiplexers16-SOICN/A-40°C ~ 85°C (TA)
Switch Circuit:
SPST – NO/NC
Multiplexer/Demultiplexer Circuit:
1:1
Number of Circuits:
2
On-State Resistance (Max):
2.5Ohm
Channel-to-Channel Matching (ΔRon):
50mOhm
Voltage – Supply, Single (V+):
4.5V ~ 36V
Voltage – Supply, Dual (V±):
±4.5V ~ 20V
Switch Time (Ton, Toff) (Max):
275ns, 175ns
Charge Injection:
450pC
Channel Capacitance (CS(off), CD(off)):
65pF, 65pF
Current – Leakage (IS(off)) (Max):
500pA
Crosstalk:
-66dB @ 1MHz
Operating Temperature:
-40°C ~ 85°C (TA)
Mounting Type:
Surface Mount
Package / Case:
16-SOIC (0.154″”, 3.90mm Width)
Supplier Device Package:
16-SOIC
1,330
GET A
QUOTE
MAX4669ESE+
MAX4669ESE+Analog Devices Inc.IC SW SPST-NO/NCX2 2.5OHM 16SOICAnalog Switches, Multiplexers, Demultiplexers16-SOICN/A-40°C ~ 85°C (TA)
Switch Circuit:
SPST – NO/NC
Multiplexer/Demultiplexer Circuit:
1:1
Number of Circuits:
2
On-State Resistance (Max):
2.5Ohm
Channel-to-Channel Matching (ΔRon):
50mOhm
Voltage – Supply, Single (V+):
4.5V ~ 36V
Voltage – Supply, Dual (V±):
±4.5V ~ 20V
Switch Time (Ton, Toff) (Max):
275ns, 175ns
Charge Injection:
450pC
Channel Capacitance (CS(off), CD(off)):
65pF, 65pF
Current – Leakage (IS(off)) (Max):
500pA
Crosstalk:
-66dB @ 1MHz
Operating Temperature:
-40°C ~ 85°C (TA)
Mounting Type:
Surface Mount
Package / Case:
16-SOIC (0.154″”, 3.90mm Width)
Supplier Device Package:
16-SOIC
492
GET A
QUOTE

Featured Brands

About Analog Switches, Multiplexers, & Demultiplexers

Analog switches, multiplexers, and demultiplexers are electronic components that control the flow of analog signals. They are commonly used in situations where multiple signals need to be directed to or from a single point.

Analog switches, functioning like electronic gates, play a crucial role in real-world applications. They allow or block the passage of an analog signal based on a control signal. They are often used to select specific signals from a group or isolate parts of a circuit, demonstrating their practical relevance and usefulness.

Multiplexers combine multiple analog signals onto a single channel, significantly reducing the number of required wires. This makes them particularly useful in practical applications where numerous sensors or devices need to share a common communication bus, thereby enabling efficient transmission.

Conversely, demultiplexers perform the crucial role of separating a single analog signal into multiple channels. This is particularly helpful when a single signal needs to be distributed to multiple destinations, underscoring the importance of these devices in complex electronic systems.

We’ve Got You Covered!

If you can’t find the parts you’re looking for in our database, don’t worry! We’re here to help. Simply fill out the form below with the part number you need and your contact information, and we’ll locate it for you. If you prefer to speak to someone directly, our sales team is available at 949.783.7300.

























    I agree to receive newsletters and promotional emails. I can unsubscribe at any time.


























      I agree to receive newsletters and promotional emails. I can unsubscribe at any time.


      See What We Have to Offer!

      keyboard_arrow_up