The ADM2491E is an isolated data transceiver with ?8 kV ESD protection and is suitable for high speed, half- or full-duplex communication on multipoint transmission lines. For half-duplex operation, the transmitter outputs and the receiver inputs share the same transmission line. Transmitter output Pin Y is linked externally to receiver input Pin A, and transmitter output Pin Z to receiver input Pin B.The ADM2491E is designed for balanced transmission lines and complies with ANSI TIA/EIA RS-485-A-1998 and ISO 8482: 1987(E). The device employs Analog Devices, Inc., iCoupler? technology to combine a 3-channel isolator, a threestate differential line driver, and a differential input receiver into a single packageThe differential transmitter outputs and receiver inputs feature electrostatic discharge circuitry that provides protection to ?8 kV using the human body model (HBM). The logic side of the device can be powered with either a 5 V or a 3.3 V supply, whereas the bus side requires an isolated 5 V supply.The device has current-limiting and thermal shutdown features to protect against output short circuits and situations where bus contention could cause excessive power dissipation.The ADM2491E is available in a wide body, 16-lead SOIC package and operates over the ?40?C to +85?C temperature range.Applications Isolated RS-485/RS-422 interfaces Industrial field networks INTERBUS Multipoint data transmission systems

Data Conversion IC Development Tools EVAL BRD AD5663R

DC912A: Demo Board for the LT3487 Boost and Inverting Switching Regulator for CCD Bias.

The LTC4267 combines an IEEE 802.3af compliant Powered Device (PD) interface with a current mode switching regulator, providing a complete power solution for PD applications. The LTC4267 integrates the 25k? signature resistor, classi?cation current source, thermal overload protection, signature disable and power good signal along with an undervoltage lockout optimized for use with the IEEE-required diode bridge. The precision dual level input current limit allows the LTC4267 to charge large load capacitors and interface with legacy PoE systems.The current mode switching regulator is designed for driving a 6V rated N-channel MOSFET and features programmable slope compensation, soft-start, and constant frequency operation, minimizing noise even with light loads. The LTC4267 includes an onboard error ampli?er and voltage reference allowing use in both isolated and nonisolated con?gurations.The LTC4267 is available in space saving, low pro?le 16-pin SSOP or DFN packages.Applications IP Phone Power Management Wireless Access Points Security Cameras Power over Ethernet

The LTC2205/LTC2204 are sampling 16-bit A/D converters designed for digitizing high frequency, wide dynamic range signals up to input frequencies of 700MHz. The input range of the ADC can be optimized with the PGA front end.The LTC2205/LTC2204 are perfect for demanding communications applications, with AC performance that includes 79dB SNR and 100dB spurious free dynamic range (SFDR). Ultralow jitter of 90fsRMS allows undersampling of high input frequencies with excellent noise performance. Maximum DC specs include ?4LSB INL, ?1LSB DNL (no missing codes). A separate output power supply allows the CMOS output swing to range from 0.5V to 3.6V.The ENC+ and ENC? inputs may be driven differentially or single-ended with a sine wave, PECL, LVDS, TTL or CMOS inputs. An optional clock duty cycle stabilizer allows high performance at full speed with a wide range of clock duty cycles.Applications Telecommunications Receivers Cellular Base Stations Spectrum Analysis Imaging Systems ATE

DC919A-E: Demo Board for the LTC2203 16-Bit, 25Msps ADCs.

DC919A-H: Demo Board for the LTC2206-14 14-Bit, 80Msps ADC.

The LTC3532 is a high efficiency, fixed frequency, buck-boost DC/DC converter that operates from input voltages above, below or equal to the output voltage. The topology incorporated in the IC provides a continuous transfer function through all operating modes, making the product ideal for single lithium-ion, multicell alkaline or NiMH applications where the output voltage is within the battery voltage range.The device includes two 0.36? N-channel MOSFET switches and two 0.42? P-channel switches. Switching frequencies up to 2MHz are programmed with an external resistor. Quiescent current is only 35?A in Burst Mode operation, maximizing battery life in portable applications. Automatic Burst Mode operation allows the user to program the load current for Burst Mode operation or to control it manually.Other features include a 1?A shutdown, soft-start control, thermal shutdown, and peak current limit. The LTC3532 is available in a low profile (0.75mm) 10-lead (3mm ? 3mm) DFN and 10-lead MSOP packages.Applications Miniature Hard Disk Drive Power Supply MP3 Players Handheld Instruments Digital Cameras Handheld Terminals

Demonstration circuit 934A features the LTC2607 dual 16-bit DAC. This device establishes a new board-density benchmark for 16-bit DACs and advances performance standards for output drive, load regulation, and crosstalk in single supply, voltage-output DACs.

DC944A: Demo Board for the LT5571 620MHz - 1100MHz High Linearity Direct Quadrature Modulator.