The Model 3722 offers two independent banks of 1×48 two-pole multiplexers, which is ideal for applications that require a high channel count. The two banks can automatically be connected to the Series 3700A mainframe backplane and optional DMM through the analog backplane connection relays. This connection allows the mainframe to reconfigure the card as a single 1×96 two-pole multiplexer or to enable card-to-card expansion for even larger configurations. Another feature of this card is the latching electromechanical relays. They can accommodate 300V, 1A switched signal levels.
The Model 3722 uses two 104-pin D-sub connectors for signal connections. A solder style connector kit (Model 3792-KIT104-R) and pre-assembled cables (Model 3722-MTC-1.5 and 3722-MTC-3) are available for card connections.
| Key Features |
| 96 two-pole or 48 four-pole channels for general purpose measurements |
| Analog backplane connection relays provide easy bank and card interconnections |
| 300V, 1A switched or 2A carry signal capacity; 60W, 125VA |
| 1µV and 100pA offsets |
| 25MHz bandwidth |
| Relay closures stored in onboard memory |
| Latching electromechanical relays |
| Scan and measure over 110 channels/second |
| Specifications |
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Series 3700A
System Switch/Multimeter and Plug-In Cards
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| Model Overview |
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| Model | Description |
| Mainframes |
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| 3706A | Six-Slot System Switch with High Performance DMM |
| 3706A-NFP | Six-Slot System Switch with High Performance DMM,
Without front panel display and keypad
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| 3706A-S | Six-Slot System Switch |
| 3706A-SNFP | Six-Slot System Switch
Without front panel display and keypad
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| Plug-in Cards | Description |
| 3720 | Dual 1×30 Multiplexer Card
(Auto CJC when used with 3720-ST)
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| 3721 | Dual 1×20 Multiplexer Card
(Auto CJC when used with 3721-ST)
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| 3722 | Dual 1×48, High Density, Multiplexer Card |
| 3723 | Dual 1×30, High Speed, Reed Relay Multiplexer Card |
| 3724 | Dual 1×30 FET Multiplexer Card |
| 3730 | 6×16, High Density, Matrix Card |
| 3731 | 6×16 High Speed, Reed Relay Matrix Card |
| 3732 | Quad 4×28, Ultra-High Density, Reed Relay Matrix Card |
| 3740 | 32 Channel Isolated Switch Card |
| 3750 | Multifunction Control Card |
| 3760 | 10-Channel High Current Multiplexer Card |
| 3761 | 10-Channel Low Current Multiplexer Card |
| 3762 | 10-Channel High Voltage Multiplexer Card |
| 3765 | Hall Effect Card |
| Specifications |
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| Plug-in Cards for Series 3700A Mainframes |
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| Model Overview |
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| Model | Channels | Card
Configuration
| Type of Relay | Contact
Configuration
| Max.
Voltage
| Max.
Current Switched
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| 3720 | 60
(Dual 1×30)
| Multiplexer | Latching
electro
mechanical
| 2 Form A | 300 V | 1 A |
| 3721 | 40
(Dual 1×20)
| Multiplexer | Latching
electro
mechanical
| 2 Form A | 300 V (ch 1–40)
60 V (ch 41–42)
| 2 A (ch 1–40)
3 A (ch 41–42)
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| 3722 | 96
(Dual 1×48)
| Multiplexer | Latching
electro
mechanical
| 2 Form A | 300 V | 1 A |
| 3723 | 60
(Dual 1×30)
or
120 single-pole
(Dual 1×60)
| Multiplexer | Dry reed | 1 Form A | 200 V | 1 A |
| 3724 | 60
(Dual 1×30)
| Multiplexer | FET
solid-state
| 2 Form A | 200 V | 0.1 A |
| 3730 | 6×16 | Matrix | Latching
electro
mechanical
| 2 Form A | 300 V | 1 A |
| 3731 | 6×16 | Matrix | Dry reed | 2 Form A | 200 V | 1 A |
| 3732 | 448 crosspoints
(Quad 4×28)
| Matrix | Dry reed | 1 Form A | 200 V | 0.75 A |
| 3740 | 32 | Independent | Latching
electro
mechanical
| 28 Form C
4 Form A
| 300 VDC/250 VAC
(Form A)
| 2 A (Form C)
7 A (Form A)
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| 3750 | 40 digital I/O
4 counter/totalizers
2 isolated analog outputs
| Independent | N/A | N/A | N/A | N/A |
| 3760 | 10 | Multiplexer | Non latching
electro
mechanical
| 2 Form C | 500 V | 5 A |
| 3761 | 10 | Multiplexer | Dry reed | Form A | 30 V | 100 mA |
| 3762 | 10 | Multiplexer | Dry reed | 2 Form A | 1000 V | 0.5 A |
| 3765 | 4×5 | Matrix | Non latching
electro
mechanical
and
Dry reed
| Form A | 8 V | 100 mA |
| Specifications |
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Plug-in Cards for;
Series 3700A Mainframes
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| Series Overview |
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| Model | Comments |
| 3720 | 2 independent 1×30 multiplexers.
Automatic temperature reference when used with screw terminal accessory (3720-ST)
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| 3721 | 2 independent 1×20 multiplexers.
Automatic temperature reference when used with screw terminal accessory (3721-ST)
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| 3722 | 2 independent 1×48 multiplexers |
| 3723 | 2 independent 1×30 multiplexers |
| 3724 | 2 independent 1×30 multiplexers.
Automatic temperature reference when used with screw terminal accessory (3724-ST)
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| 3730 | Columns can be expanded through the backplane or isolated by relays |
| 3731 | Relay actuation time of 0.5 ms.
Columns can be expanded through the backplane or isolated by relays
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| 3732 | Banks can be connected together via bank configuration relays to create a single 4×112 or dual 4×56 matrix.
Analog backplane relays also included for card-to-card expansion.
Row expansion with 3732-ST-R accessory to create a dual 8×28 or single 16×28 matrix.
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| 3740 | 32 general purpose independent channels. |
| 3750 | All-in-one card design.
40 bidirectional I/O.
Four 32- bit counter/totalizers.
2 programmable analog (V or I) outputs.
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| 3760 | Single 1×10 high current multiplexer |
| 3761 | Single 1×10 low current multiplexer |
| 3762 | Single 1×10 high voltage multiplexer |
| 3765 | Specialty 4×5 matrix for Hall Effect and van der Pauw measurements. |
| Specifications |
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| 3722 Dual 1×48, High Density, Multiplexer Card |
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| Model Overview |
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| Model | Description |
| 3722 | Dual 1×48, High Density, Multiplexer Card |
| Accessories (Available) |
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| 3722-MTC-1.5 | 104-pin D-sub Male to Female Cable, 1.5m (5 ft.) |
| 3722-MTC-1.5/MM | 104-pin D-sub Male to Male Cable, 1.5m (5 ft.) |
| 3722-MTC-3 | 104-pin D-sub Male to Female Cable, 3m (10 ft.) |
| 3722-MTC-3/MM | 104-pin D-sub Male to Male Cable, 3m (10 ft.) |
| 3791-CIT | Contact Insertion and Extraction Tool |
| 3792-KIT104-R | 104-pin Male D-sub Connector kit
(contains 2 male D-sub connectors with housings and 208 solder-cup contacts)
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| 3792-KIT104-R/F | 104-pin Female D-sub Connector kit
(contains 2 female D-sub connectors with housings and 208 solder-cup contacts)
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