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This document describes the features and characteristics of the X24C02 device. It is a 2048-bit serial E2PROM, internally organized as 256 x 8. The device features a serial interface and software protocol, allowing operation on a simple two-wire bus. Three address inputs allow up to eight devices to share a common two-wire bus. Xicor E2PROMs are designed and tested for applications requiring extended endurance. Inherent data retention is greater than 100 years.
This document describes the features and characteristics of the WMS256K16-XXX product, including access times, MIL-STD-883 compliance, packaging options, data byte control, minimum data retention for battery backup operation, temperature range, power supply, low power CMOS, and TTL compatible inputs and outputs.
This brief demonstrates the analysis of various sugars in candy and juice using PAD with post- column pH–changing. The sugars are separated by both ligand exchange and size exclusion mode.
A new electron capture detector (ECD) for the Agilent 6890 Series gas chromatograph (GC) was used to ana- lyze polychlorinated biphenyl congeners and organochlorine pesticides. The linearity of the 6890 Micro-ECD in the calibration range of 2 to 400 ppb was evaluated. The micro-ECD easily meets the linearity requirements of U.S. EPA contract laboratory programs for pesti- cides. Its limit of detection for these compounds goes down to less than 50 ppt. The micro-ECD also exhibits good reproducibility.
The VSB series power relay is a 16A miniature power relay with UL, CSA, VDE, SEV, FIMKO, SEMKO, IMQ, ÖVE, BSI certification, working class C, service type continuous duty, high insulation, low power consumption, high sensitivity, plastic sealed (with tape) features
The LM2747 is a high-precision synchronous buck controller that provides simple step-down conversion with output voltages as low as 0.6V. The device features an adjustable fixed-frequency voltage-mode PWM control architecture, with frequency adjustable from 50kHz to 1MHz with one external resistor. In addition, the LM2747 also allows the switching frequency to be synchronized to an external clock signal in the range of 250kHz to 1MHz. This wide range of switching frequency provides the power supply designer the flexibility to make better tradeoffs between component size, cost, and efficiency. Features include the ability to startup with a pre-biased load on the output, soft-start, input undervoltage lockout (UVLO) and Power Good (based on both undervoltage and overvoltage detection). In addition, the shutdown pin of the IC can be used for providing power-down.
This study analyzed synthetic dyes using ion-pair, reversed phase chromatography on a special base-deactivated HPLC column. This separation mechanism was chosen to reduce tailing effects of highly polar colors. Detection was performed using a new design of diode-array detector based on two lamps — a deuterium lamp and a tungsten lamp. This ensured highest light output at 190 – 950 nm, which resulted in lowest detection limits over the entire wavelength range. It was possible to analyze blue, black or green colors in the low ng range at their absorption maxima of 600 – 700 nm. Complete spectra, feasible from 190 – 950 nm, facilitated identification with an automated library search.
This article describes the analysis of synthetic dyes in food samples using capillary zone electrophoresis with an alkaline phosphate buffer as the background electrolyte. The precision of the method was found to have a relative standard deviation of less than 0.5% for the run-to-run migration times and 2% for the peak areas with buffer replenishment after each run. The detection limit for individual dyes was approximately 1 ng using a 50-µm internal diameter Agilent extended path length capillary. Compounds were detected at different wavelengths (215, 410, 520, and 598 nm) and the identities of the individual dyes were confirmed using peak-purity routines and a UV-Visible spectral library.
Dual-column analysis with HP-35 and HP PAS-1701 columns was used to analyze chlorinated pesti- cides targeted in EPA Methods 608 and 8080 for wastewater and solid wastes. GC parameters were optimized using the Agilent 5890 Series II gas chromatograph (GC) with electronic pressure control (EPC), a dual injector, and a dual electron capture detector (ECD) system. The analysis of 18 pesticides was completed in 12 minutes.
