References
A source of comparison.
See Also: Reference Standards, Reference Antennas, Reference Decoders, Reference Jumpers, Reference Sources, Reference Transformers, Reference Transmitters, Acoustical References, Frequency References, Solar Reference Cells
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Product
Voltage References
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Analog Devices offers the widest selection of high performance voltage references in the industry. Our products range from high accuracy, low noise for high end industrial applications to general-purpose, low power for handheld, battery-powered applications. ADI is the ultimate source for design engineers looking for the perfect voltage reference that is cost effective, reliable, and dependable.
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Product
Voltage References
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Renesas' wide selection of voltage reference (Vref) circuits offer accurate and stable reference voltages unaffected by external influences such as variation in temperature, input voltage and time.
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Product
Micropower Voltage References
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Analog Devices offers a broad line precision micropower voltage references with extremely low quiescent currents (series references) or minimum shunt currents (shunt voltage references). All of our precision voltage references offer excellent initial accuracy and low temperature drift over time and temperature. Our Reference Plus products combine precision voltage references with comparators or amplifiers.
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Product
300nA NanoPower Voltage References
ISL21080
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The ISL21080 analog voltage references feature low supply voltage operation at ultra-low 310nA typ, 1.5µA max operating current. Additionally, the ISL21080 family features guaranteed initial accuracy as low as ±0.2% and 50ppm/°C temperature coefficient.
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Product
Series Voltage References
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Analog Devices offers a broad line of series voltage references with low dropout, low power, and excellent line regulation. These devices are voltage references that are functionally similar to a three-terminal regulator. Some series voltage references are designed to also operate in shunt mode by biasing the output pin and leaving the input pin open circuit. Series mode voltage references have the advantage that they draw only load and quiescent current from the input supply.
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25µA Micropower Voltage References
ISL21070
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The ISL21070 voltage references are analog voltage references featuring low supply voltage operation at ultra-low 25µA max operating current. Additionally, the ISL21070 family features guaranteed initial accuracy as low as ±0.2% and 30ppm/°C temperature coefficient. These references are ideal for general purpose applications for performance at lower cost.
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Product
2-Channel 500 MHz A/D and 2-Channel 800 MHz D/A with Virtex-6 FPGA - XMC
Model 71650
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- Complete radar and software radio interface solution- Supports Xilinx Virtex-6 LXT and SXT FPGAs- Two 500 MHz 12-bit A/Ds- One digital upconverter- Two 800 MHz 16-bit D/As- Up to 2 GB of DDR3 SDRAM or 32 MB of QDRII+ SRAM- Sample clock synchronization to an external system reference- Front panel clock/sync bus for multimodule synchronization- PCI Express (Gen. 1 & 2) interface up to x8 wide- VITA 42.0 XMC compatible with switched fabric interfaces- Optional user-configurable gigabit serial interface- Optional LVDS connections to the Virtex-6 FPGA for custom I/O- Synchronize up to eight modules with Model 7893 System Synchronization and Distribution Amplifier - PCIe
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Product
Synchro Power Amplifiers
SPB
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Computer Conversions Corporation
SPB Series: 25VA, 30VA and 100VA Reference Powered Wide-Band 60/400Hz. Models
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Product
Height Gages
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Used from a flat surface such as a Starrett granite surface plate, height gages measure the distance from the reference surface to some feature of a part, and can do so with exceptional accuracy. accuracy. Starrett offers a full range of height gages. Our Altissimo advanced electronic height gage is rich in features and exceptionally accurate. gages are available with a choice of range and feature sets. Our vernier height gages are still preferred by many for their exceptional accuracy. For the highest level of accuracy, we offer DIGI-CHEK gages. These tools are typically used in combination with the various scribes, attachments and accessories available from Starrett to complete the inspection work.
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Product
Gas in Metal Reference Materials
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NCS Testing Technology Co., Ltd.
Gas in Metal Reference Materials by NCS
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2-Ch 500 MHz A/D with DDC & 2-Ch 800 MHz D/A with DUC, Virtex-7 FPGA - XMC
Model 71751
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- Complete radar and software radio interface solution- Supports Xilinx Virtex-7 VXT FPGAs- Two 500 MHz 12-bit A/Ds- Two multiband DDCs (digital downconverters)- Two 800 MHz 16-bit D/As- One DUC (digital upconverter)- Multiboard programmable beamformer- 4 GB of DDR3 SDRAM- Sample clock synchronization to an external system reference- LVPECL clock/sync bus for multimodule synchronization- PCI Express (Gen. 1, 2 & 3) interface up to x8- VITA 42.0 XMC compatible with switched fabric interfacesOptional LVDS connections to the Virtex-7 FPGA for custom I/OAlso available in 3U VPX, 3U & 6U cPCI & PCIeSupports GateXpress® FPGA-PCIe Configuration ManagerSynchronize up to eight modules with Model 7893 System Synchronization and Distribution Amplifier - PCIe
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Product
1229a Frequency Generator
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Precise Time and Frequency, Inc.
The ptf 1229A utilizes the latest technological advances in precision frequency synthesizers to provide a multiple output, wide range, high precision frequency reference instrument, capable of delivering frequencies over the range of 0.1Hz up to 30MHz with a resolution of 0.1 Hz over the full range.The unit includes an external reference input to allow extremely high accuracy outputs at precisely the frequency required, together with a front panel indicator to verify “lock” to the external reference. The standard unit includes two independent frequency outputs of any frequency within the range, and provides both sine and square wave outputs for each frequency.An expansion module gives the capability to increase the number of independent frequency outputs up to a total of four frequencies, with sine and square wave outputs for each, giving a total of eight outputs.
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Product
PMC-Parallel-485
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The PMC compatible PMC-Parallel-485 design adds 32 [RS-485 /RS-422] differential IO lines to one slot of your carrier board. 2 additional differential pairs are available for a clock & clock enable. The signals can be used to capture data with an external reference or programmed to be references for the rest of the system.
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Product
SMA Male to SMA Male Cable, 50 Ohm, 30 cm
781846-01
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The SMA-SMA Coaxial Cable, sometimes referred to as SMA100, connects measurement and signal devices. NI offers this 50 Ω cable in different lengths.
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R1005050 Ribbon Cable, 2 m
182762-02
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The R100M-50F-50F Cable, sometimes referred to as R1005050, is a Y-shaped ribbon cable that connects to the 100-pin connector on NI digital devices. The R100M-50F-50F Cable is offered in different lengths.
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Product
Advanced PC/104 Timing Board
PC104-Plus SyncClock32
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The PC/104Plus SG from Brandywine Communications provides precision time with zero latency to the host computer over the PCI bus. An on-board microprocessor automatically synchronizes the clock to reference signal inputs. The reference signal inputs can be 1 PPS, IRIG or NASA time codes and optionally, GPS or HaveQuick.
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Product
Reference Oscillator
REF Series 1.5” x 1.5” x 0.6”
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*Connectorized Package *Free Running *Low Phase Noise *Output Power to +12 dBm Available
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PC-Based Time Interval Analyzer
GT658PCI
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GuideTech’s GT658PCI is an ultra-fast, high resolution, DC – 400 MHz Time Interval Analyzer (TIA), ideal for most PC-based lab bench (timing) test applications. What makes the GT 658 superior to traditional counters is analogous to the difference between volt meters & digital scopes. While both measure voltage, the scope provides much more information about the dynamics of the signal. This is because our patented TIA substantially increases measurement speed, and the measurements are displayed as afunction of time. All of these features, along with the benefit of ‘continuous time correlation to a common reference between all measurement time stamps,’ enable our TIAs to make measurements that weren’t previously possible with traditional counters.
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Dynamic Primary Transfer Standard
RD-22
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The RD-22 Dytronic Primary Transfer Standard represents the state-of-the-art technology in a commercially available true DC to AC accuracy transfer reference. The RD-22 has typical AC measurement accuracies within the limits of traceability. Repeatability of 1 ppm can be attained at 120 V and 5 A inputs of specific models.
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4-Channel 200 MHz A/D with 32-Channel DDC, Virtex-7 FPGA - XMC
Model 71762
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- Complete radar and software radio interface solution- Supports Xilinx Virtex-7 VXT FPGAs- Four 200 MHz 16-bit A/Ds- Four multiband DDCs- 4 GB of DDR3 SDRAM- Sample clock synchronization to an external system reference- LVPECL clock/sync bus for multimodule synchronization- PCI Express (Gen. 1, 2 & 3) interface up to x8- VITA 42.0 XMC compatible with switched fabric interfaces- Optional user-configurable serial gigabit interfaces- Optional LVDS connections to the Virtex-7 FPGA for custom I/O- Also available in 3U VPX, 3U & 6U cPCI & PCIe- Supports GateXpress® FPGA-PCIe Configuration Manager- Synchronize up to eight modules with Model 7893 System Synchronization and Distribution Amplifier - PCIe- See comparable Jade Xilinx Kintex UltraScale FPGA Module: Model 71862
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Thermocouple Vacuum Gauge Tubes for Medium Vacuum
DV-6 Series
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Teledyne Hastings, manufacturer of the original DV-4, DV-5, and DV-6 thermocouple vacuum gauge tubes, produces vacuum measurement equipment with exceptional stability, accuracy, and reliability under the most demanding conditions.The Teledyne Hastings’ DV-6 series thermocouple vacuum gauge tube acts as a localized sensor which is then paired with a selection of meters or controllers to provide reliable, cost-effective measurements in diverse applications. The robust sensor gauge tube is easily installed into vacuum systems and when properly excited, generates a thermoelectric voltage to provide a vacuum pressure measurement based on gas density. The DV-6 thermocouple vacuum gauge tube fully compensates for temperature and rate of temperature change.Thermocouple gauge tubes are calibrated on vacuum systems that contain N2 or Air, but can be used with other gases. Additionally, thermocouple gauges and their controllers can be recalibrated when a replacement thermocouple gauge tube is installed, following instructions in the manual. However, our DB-20 reference tube is available to confirm meter/controller performance. A complete line of installation accessories are also available to simplify the integration of our thermocouple gauge tubes into a variety of vacuum systems. Our goal is to provide “one less thing to worry about”, when performance matters! With a wide range of meter, fitting, relay and output options, the DV-6 series provides a reliable pressure measurement in numerous industries and applications.
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Automated System for Identification and Control of Pharmaceutical Codes
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The automated system for identifying pharmaceutical codes includes two scanners of the pharmaceutical code, two sensors for the presence of an object and a data processing unit (BOD). When the box or instructions are passed under the object presence sensors, the farm code is read by the corresponding scanner and the results are transmitted to the computer via the Ethernet interface. The BOD verifies the correctness of the read out farm code by comparing this code with the reference farm code set at the beginning of the system operation. If the farm code has not been read or does not match the standard, the packaging machine stops and the type of error is displayed on the indicators.
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SH68M-68M-EPM, 68-Pin Male VHDCI to 68-Pin Male VHDCI, Twisted Pair, Shielded Multifunction Cable
190233-01
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68-Pin Male VHDCI to 68-Pin Male VHDCI, Twisted Pair, Shielded Multifunction Cable - The SH68M-68M-EPM Cable, sometimes referred to as SHC68-C68-EPM, connects DAQ devices. The cable includes separate digital and analog sections, individually shielded twisted pairs for analog inputs, individually shielded analog outputs, and twisted pairs for critical digital I/O. The SH68M-68M-EPM Cable is offered in different lengths.
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4-Ch 1.25 GHz, 16-bit D/A with DUC, Extended Interpolation, Virtex-6 - XMC
Model 71671
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- Complete radar and software radio interface solution- Supports Xilinx Virtex-6 LXT and SXT FPGAs- Four 1.25 GHz 16-bit D/As- Four digital upconverters- Extended interpolation range from 2x to 1,048,576x- Programmable output levels- 250 MHz max. output bandwidth- 2 GB of DDR3 SDRAM- Sample clock synchronization to an external system reference- Dual uSync clock/sync bus for multimodule synchronization- PCI Express (Gen. 1 & 2) interface, up to x8- Optional user-configurable gigabit serial interface- Optional LVDS connections to the Virtex-6 FPGA for custom I/O- Synchronize up to four modules with Model 7192 System Synchronization and Distribution Amplifier - PMC/XMC- Synchronize up to twelve modules with Model 9192 System Synchronization and Distribution Amplifier- 1U Rack-mount
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Digital Transmitter
CA-320A
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The CA-320A Digital Transmitter and CA-320B Receiver comprise the exciting new Compass Correction System. This is the first system that does not need an external heading reference for the for the alignment of the compass.
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Universal Differential pH Water Quality Sensors
SD7500CD
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Continuous online pH monitoring in wastewater and coating industrial applications leads to contamination and eventually requires sensors to be replaced. A differential pH sensor utilizes a measurement technique designed to extend the working lifetime of sensors in challenging applications. Replacing the sensor reference (salt bridge) and buffered electrolyte solution can prevent sensor replacements, saving time and money. Our SD7500 Series features a combination sensor output; these differential pH sensors can be used with any conventional pH/ORP transmitter.
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4/8-CH 12-Bit 1 MS/s Analog Output Multi-Function DAQ Cards
DAQ-2500 Series
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ADLINIK DAQ-2501 and DAQ-2502 are high-speed and high-performance analog output multifunction DAQ cards. The devices are able to update up to 8-CH, 12-bit analog outputs simultaneously at sustaining 1 MS/s. The reference sources and the output polarities are programmable on per channel basis, combining with the multiplying DAC architecture, ADLINK DAQ-2500 series DAQ cards can generate complex modulated analog signals. The hardware-based arbitrary waveform generation frees the CPU intervention even when all analog outputs are updating at full speed, and the lengths of waveforms are only limited by the system memory. The DAQ-2500 series integrate up to 8-CH, 400 kS/s, 14-bit single-ended analog inputs with programmable polarity, 24-CH programmable digital I/O lines, and 2-CH 16-bit general-purpose timer/counters.
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Deep Reactive Ion Etch (DRIE
Syndion Product Family
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Deep silicon etch refers to plasma-based processes that remove silicon, creating features that can be many orders of magnitude larger than those in advanced transistors and memory cells.
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SMA Male to SMA Male Cable, 50 Ohm, 38.1 cm
763444-01
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The SMA-SMA Coaxial Cable, sometimes referred to as SMA100, connects measurement and signal devices. NI offers this 50 Ω cable in different lengths.
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Shore C Rubber Durometer
LX-C
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Shenzhen Chuangxin Instruments Co., Ltd.
LX-C micropore durometer applys to low hardness materials like micropore material used in foam, sponge, shoes. This durometer refers to HG/T2498-93 and other relevant standards.
