Agilent 34980A Multifunction Switch/Measure Unit Data Sheet C O N F I G U R E , C O N N E C T, G O • 8-slot mainframe with 19 mix-andmatch plug-in modules so you can create your own custom configuration • High-performance switching: Up to 560 2-wire multiplexer channels or 1024 matrix cross-points in one mainframe • Optional built-in 6 1 ⁄ 2 -digit DMM lets you make 11 measurements with up to 2000 readings/sec • Easy to integrate: Built-in Ethernet, USB 2.
High-performance unit provides low-cost alternative to PXI and VXI switch and measurement platforms If you use automated test equipment for design validation or manufacturing, you now have a cost-effective alternative to PXI and VXI test-system platforms. The 34980A multifunction switch/measure unit provides comparable functionality that is much easier to use than PXI and VXI and costs less. The 34980A helps you lower your cost of test and accelerate your testsystem integration and development.
Make system connections easily and quickly with simple, reliable connection options: • Built-in Ethernet, USB 2.0, and GPIB connectivity • Standard IVI and LabVIEW software drivers • Low-cost, standard 50- or 78-pin Dsub connectors and cables • Detachable terminal blocks with strain relief Measurements you can trust Get proven performance from Agilent instruments, with the resolution, repeatability, speed, and accuracy you’ve come to expect.
Modules provide flexible system stimulus and control System control—with analog outputs, open-collector digital outputs, clock generation, and isolated Form-C relays for controlling external devices. Additionally, with the microwave switch/attenuator driver, highfrequency switches and attenuators can be efficiently controlled external to the 34980A mainframe. Analog sources—output either voltage or current.
Power and flexibility to get your job done Intuitive front panel with self-guiding menus 6 1⁄2 digit DMM measurements with 11 functions Scan multiple channels, close specified channel list, or monitor results on a single channel See results on bright, multiline display Use keypad to enter channel number or knob to scroll Configure measurements by channel Set up scan lists Store up to 500,000 readings with timestamp External trigger to synchronize events Built-in Ethernet, USB 2.
Mix and match 34980A modules to create your own custom configuration The 34980A mainframe holds up to eight plug-in modules. Mix and match them to create a custom system to meet your switching and system control needs. You can easily add or replace modules as your needs change. Table 1.
34980A multiplexer switch modules The 34980A multiplexer modules can be used to connect one of many different points to a single point. You can connect to an external instrument, or scan multiple analog signals to the internal DMM. Choose from the following features: • 1-wire, 2-wire, or 4-wire configurations Figure 2.
Multiple multiplexers can connect to the built-in analog buses, allowing you to scan up to 560 2-wire channels or 640 1-wire channels in a single mainframe. The 34921A also offers 4 channels for directly measuring current. Or if you need more current channels, shunts can be added to the terminal block for easy current measurements. Figure 3.
Table 2.
34980A matrix switch modules The 34980A matrix modules are full cross-point matrices that allow you to connect any row to any column. This is a convenient way to connect multiple test instruments to multiple points on a device under test. Choose from the following features: • Latching armature relays—300 V, 1 A Figure 5. 34932A dual 4x16 armature matrix H L H L H L H L H L L H L H L H L • High-speed reed relays—150 V, 0.
Table 3. Matrix selection table—specifications and characteristics* 34931A 34932A 34933A Channels/configurations dual 4x8 8x8 4x16 dual 4x16 8x16 4x32 dual 4x8 8x8 4x16 quad 4x8, 1-wire Switch type Armature latching Armature latching Reed non-latching Input characteristics (per channel) Max volts ± 300 V Max current (DC, AC RMS) Switch current Carry current [1] ± 300 V [1] ± 150 V peak [2] 1A 2A 1A 2A 60 W 60 W 108 108 108 < 3 uV < 3 uV < 50 uV < 100 uV 1-wire < 1.5 Ω < 1.
34980A general-purpose switch modules The 34980A general-purpose switches can be used to route signals or to control other system devices. These switches are ideal for device actuation and switching loads or power supplies. Choose from the following features: • Form C channels up to 1 A, 50 W • Form A channels up to 5 A, 150 W Figure 6.
34980A RF and microwave switch modules Figure 7. 34941A Quad 1x4 50 ohm 2 GHz multiplexer The 34980A offers a variety of RF and microwave switch modules— RF multiplexers, SPDT switching from DC to 20 GHz, or a switch/ attenuator driver module that allows you to control switches or attenuators external to the 34980A mainframe. 34941A/42A—from DC to 3 GHz— The RF switch modules can be used to switch signals from DC to 3 GHz and above.
Table 5. RF and microwave selection table—specifications and characteristics* DC to 3 GHz DC to 20 GHz [3] 34941A 34942A 34946A Channels quad 1x4 quad 1x4 2 SPDT 34947A 3 SPDT Switch type 50 Ω unterminated, latching relays 75 Ω unterminated, latching relays 50 Ω terminated 50 Ω unterminated DC to 3 GHz Contact factory DC to 4 GHz OR DC to 20GHz DC to 4 GHz OR DC to 20 GHz Contact factory Contact factory DC to 4 GHz < 0.42dB @ 20 GHz < 0.69dB DC to 4 GHz < 0.42 dB @ 20 GHz < 0.
34945A/34945EXT microwave switch/attenuator driver This module allows you to control switches attenuators, and other devices external to the 34980A. The 34945A provides the power and control signals for many of the most popular microwave switches and attenuators. One 34945A/ 34945EXT combination can drive up to 64 switch coils—that’s 32 standard SPDT switches. You can add up to seven more 34945EXT boards with external power to drive up to 512 coils from a single mainframe.
34980A system control modules 34950A 64-channel digital I/O with memory and counter This module can be used to simulate or detect digital patterns. It has eight 8-bit digital I/O channels with handshaking, pattern memory, two 10-MHz totalizers with gate functions, and a programmable clock output. Digital input/output The digital I/O bits are organized into two banks of 32-bits. The I/O bits can be configured and programmed as inputs or outputs in 8-bit channels.
34951A 4-channel isolated D/A converter with waveform memory This module has four independent, isolated channels that output DC voltage up to ± 16 V or DC current up to ± 20 mA. The gain and offset can be adjusted on-the-fly. Each channel can be controlled manually, or use the onboard memory to download a waveform. These waveforms can be dynamically allocated among one or more channels and output as a pointto-point arbitrary waveform generator at up to 200k points/sec.
34952A multifunction module with 32-bit DIO, 2-channel D/A and totalizer Digital input/output characteristics Vin(L) < 0.8 V (TTL) The multifunction module offers the flexibility you need for system control. The 34952A has four 8-bit digital I/O channels, a 100-kHz gated totalizer, and two ± 12 V analog outputs—all on a single earth-referenced module. The digital inputs and totalizer input may be included in a scan list.
34959A breadboard module Use this module to create your own custom designs inside the 34980A mainframe. You can control your custom circuits with access to both the +12 V and +5 V supplies, 32 relay drive lines and two 8-bit GPIO ports. Your design can be isolated from the analog buses or connected by loading the backplane switches. Simply mount your custom PC board or other components into the space provided and connect via the two ribbon connectors provided.
34980A system specifications and characteristics (for complete specifications, see the 34980A Users Guide) DMM accuracy ± (% of reading + % of range) Includes measurement error, switching error, and transducer conversion error Measurement including switch error [4] Function Range DC voltage (with 34921A/22A/ 31A/32A) 100.0000 mV 1.000000 V 10.00000 V 100.0000 V 300.0000 V True RMS AC [5] voltage 100.0000 mV to 100.0000 V 90 days Tcal ± 5°C 1 year Tcal ± 1°C Temperature coefficient Tcal ± 5°C 0.
Temperature measurement accuracy ± (% of reading + % of range) Temperature Type 1-year accuracy Thermocouple (34921A only, includes cold junction accuracy on terminal block) B E J K N R S T RTD Thermistor [1] [1] 24 hour Extended range 1-year accuracy Temp Coefficient 1100°C to 1820°C -150°C to 1000°C -150°C to 1200°C -100°C to 1200°C -100°C to 1300°C 300°C to 1760°C 400°C to 1760°C -100°C to 400°C 1.2°C 1.0°C 1.0°C 1.0°C 1.0°C 1.2°C 1.2°C 1.
Measurement characteristics with optional internal DMM DC current Shunt resistance 5 Ω for 10 mA, 100 mA; 0.1 Ω for 1 A DC voltage Input protection 1A 250 V fuse on 34921A module Measurement method Continuously integrating multi-slope III A-D converter A-D linearity 0.0002% of reading + 0.0001% of range on 10 V range Input resistance 100 mV, 1 V, 10 V ranges 100 V, 300 V ranges True RMS AC current Measurement method Direct coupled to the fuse and shunt.
System specifications Scanning inputs Analog: 34921A, 34922A, 34923A, 34924A, and 34925A multiplexer channels General specifications Power supply Universal 100 V to 240 V ± 10% Power line frequency 50 – 60 Hz ± 10% automatically sensed Power consumption 150 VA Operating environment Full accuracy for 0°C to 55°C Full accuracy to 80% R.H.
Ordering information Description Optional terminal block Interconnect cables / connector kits N/A N/A 34921T Qty 2 per module Y1135A – 1.
Accessories Y1130A Rackmount kit for 34980A, forward or reverse mount Cables/connector Kits Y1135A 1.5m 50pin Dsub, M/F twisted pair with outer shield cable – 300 V Y1136A 3m 50pin Dsub, M/F twisted pair with outer shield cable – 300 V Y1137A 1.
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