The ADM485 is a differential line transceiver suitable for high speed bidirectional data communication on multipoint bus transmission lines. It is designed for balanced data transmission and complies with both EIA Standards RS-485 and RS-422. The part contains a differential line driver and a differential line receiver. Both the driver and the receiver may be enabled independently. When disabled, the outputs are tristated.The ADM485 operates from a single +5 V power supply. Excessive power dissipation caused by bus contention or by output shorting is prevented by a thermal shutdown circuit. This feature forces the driver output into a high impedance state if during fault conditions a significant temperature increase is detected in the internal driver circuitry.Up to 32 transceivers may be connected simultaneously on a bus, but only one driver should be enabled at any time. It is important, therefore, that the remaining disabled drivers do not load the bus. To ensure this, the ADM485 driver features high output impedance when disabled and also when powered down. This minimizes the loading effect when the transceiver is not being utilized. The high impedance driver output is maintained over the entire common-mode voltage range form -7V to +12 V.The receiver contains a fail safe feature which results in a logic high output state if the inputs are unconnected (floating).The ADM485 is fabricated on BiCMOS, an advanced mixed technology process combining low power CMOS with fast switching bipolar technology. All inputs and outputs contain protection against EDS; all diver outputs feature high source and sink current capability. An epitaxial layer is used to guard against latch-up.The ADM485 features extremely fast switching speeds. Minimal driver propagation delays permit transmission at data rates up to 5 Mbits/s while low skew minimizes EMI interference. The part is fully specified over the commercial and industrial temperature range and is available in an 8-pin DIL/SOIC packages.

The ADM485 is a differential line transceiver suitable for high speed bidirectional data communication on multipoint bus transmission lines. It is designed for balanced data transmission and complies with both EIA Standards RS-485 and RS-422. The part contains a differential line driver and a differential line receiver. Both the driver and the receiver may be enabled independently. When disabled, the outputs are tristated.The ADM485 operates from a single +5 V power supply. Excessive power dissipation caused by bus contention or by output shorting is prevented by a thermal shutdown circuit. This feature forces the driver output into a high impedance state if during fault conditions a significant temperature increase is detected in the internal driver circuitry.Up to 32 transceivers may be connected simultaneously on a bus, but only one driver should be enabled at any time. It is important, therefore, that the remaining disabled drivers do not load the bus. To ensure this, the ADM485 driver features high output impedance when disabled and also when powered down. This minimizes the loading effect when the transceiver is not being utilized. The high impedance driver output is maintained over the entire common-mode voltage range form -7V to +12 V.The receiver contains a fail safe feature which results in a logic high output state if the inputs are unconnected (floating).The ADM485 is fabricated on BiCMOS, an advanced mixed technology process combining low power CMOS with fast switching bipolar technology. All inputs and outputs contain protection against EDS; all diver outputs feature high source and sink current capability. An epitaxial layer is used to guard against latch-up.The ADM485 features extremely fast switching speeds. Minimal driver propagation delays permit transmission at data rates up to 5 Mbits/s while low skew minimizes EMI interference. The part is fully specified over the commercial and industrial temperature range and is available in an 8-pin DIL/SOIC packages.

The ADN2830 provides closed loop control of the average optical power of a continuous wave (CW) laser diode (LD) after initial factory setup. The control loop adjusts the laser IBIAS to maintain a constant Back Facet Monitor Photo Diode (MPD) current and hence a constant laser optical power. The external PSET resistor is adjusted during factory set up to set the desired optical power. RPSET is set at 1.23/IAV, where IAVis the MPD current corresponding to the desired optical power. Programmable alarms are provided for laser fail (end of life) and laser degrade (impending fail).The ADN2830 operates from a single power +5 V supply. It is available in 5mm × 5mm LFCSP-32 Lead Frame Chip Scale.

The ADN2892 is a 4.25 Gbps limiting amplifier with integratedloss of signal (LOS) detection circuitry and a received signalstrength indicator (RSSI). This part is optimized for FibreChannel (FC) and Gigabit Ethernet (GbE) optoelectronicconversion applications. The ADN2892 has a differential inputsensitivity of 3.5 mV p-p and accepts up to a 2.0 V p-pdifferential input overload voltage. The ADN2892 has currentmode logic (CML) outputs with controlled rise and fall times.The ADN2892 has a selectable low-pass filter with a −3 dBcutoff frequency of 1.5 GHz. By setting BW_SEL to Logic 0, thefilter can limit the relaxation oscillation of a low cost CD laserused in a legacy 1 Gbps FC transmitter. The limited BW alsoreduces the rms noise and in turn improves the receiver opticalsensitivity for a lower data rate application, such as 1× FC andGbE.By monitoring the bias current through a photodiode, the onchipRSSI detector measures the average power received with2% typical linearity over the entire valid input range of thephotodiode. The on-chip RSSI detector facilitates SFF-8472-compliant optical transceivers by eliminating the need forexternal RSSI detector circuitry.Additional features include a programmable loss-of-signal(LOS) detector and output squelch. The ADN2892 is availablein a 3 mm × 3 mm, 16-lead LFCSP.Applications 1×, 2×, and 4× FC transceivers  SFP/SFF/GBIC optical transceivers  GbE transceivers  Backplane receivers

ADP7104 20 V, 500 mA, Low Noise, CMOS LDOThe ADP3334 is a member of the ADP333x family of precision low dropout anyCAP® voltage regulators. The ADP3334 operates with an input voltage range of 2.6 V to 11 V and delivers a continuous load current up to 500 mA. The novel anyCAP® architecture requires only a very small 1 µF output capacitor for stability, and the LDO is insensitive to the capacitor’s equivalent series resistance (ESR). This makes ADP3334 stable with any capacitor, including ceramic (MLCC) types for space restricted applications.

The ADP3338 is a member of the ADP330x family ofprecision low dropout anyCAP® voltage regulators. The ADP3338 operates with an input voltage range of +2.7 V to +8 V and delivers a load current up to 1 A. The ADP3338 stands out from the conventional LDOs with a novel architecture and an enhanced process that enables it to offer performance advantages and higher output currentthan its competition. Its patented design requires only a 1.0 µF output capacitor for stability. This device is insensitive to output capacitor Equivalent Series Resistance (ESR), and is stable with any good quality capacitor, including ceramic (MLCC) types for space-restricted applications.The ADP3338 achieves exceptional accuracy of ±0.9% at room temperature and ±1.8% over temperature, line and load variations. The dropout voltage of the ADP3338 is only 200 mV (typical) at 1 A. This device also includes a safety current limit and thermal overload protection. The ADP3338 has ultralow quiescent current 130 µA (typ) in light load situations.APPLICATIONS  Notebook, palmtop computers SCSI terminators Battery-powered systems Bar code scanners Camcorders, cameras Home entertainment systems Networking systems DSP/ASIC supplies

The ADSP-21062 and ADSP-21060 SHARC DSPs are signal processing microcomputers that offer new capabilities and levels of performance. The ADSP-2106x SHARCs are 32-bit processors optimized for high performance DSP applications. The ADSP-2106x builds on the ADSP-21000 DSP core to form a complete system-on-a-chip, adding a dual-ported on-chip SRAM and integrated I/O peripherals supported by a dedicated I/O bus. Fabricated in a high speed, low power CMOS process, the ADSP-2106x has a 25 ns instruction cycle time and operates at 40 MIPS. With its on-chip instruction cache, the processor can execute every instruction in a single cycle.The ADSP-2106x SHARC DSP represents a new standard of integration for signal computers, combining a high performance floating-point DSP core with integrated, on-chip system features including a 4 Mbit SRAM memory (2 Mbit on the ADSP-21062, 1 Mbit on the ADSP-21061), host processor interface, DMA controller, serial ports, and link port and parallel bus connectivity for glueless DSP multiprocessing.

The ADuC816 is a complete smart transducer front-end, integratingtwo high-resolution sigma-delta ADCs, an 8-bit MCU,and program/data Flash/EE Memory on a single chip. This lowpower device accepts low-level signals directly from a transducer.The two independent ADCs (Primary and Auxiliary) include atemperature sensor and a PGA (allowing direct measurement oflow-level signals). The ADCs with on-chip digital filtering areintended for the measurement of wide dynamic range, lowfrequency signals, such as those in weigh scale, strain gauge,pressure transducer, or temperature measurement applications.The ADC output data rates are programmable and the ADCoutput resolution will vary with the programmed gain andoutput rate.The device operates from a 32 kHz crystal with an on-chip PLLgenerating a high-frequency clock of 12.58 MHz. This clock is,in turn, routed through a programmable clock divider from whichthe MCU core clock operating frequency is generated. Themicrocontroller core is an 8052 and therefore 8051-instructionset-compatible.The microcontroller core machine cycle consistsof 12 core clock periods of the selected core operating frequency.8 Kbytes of nonvolatile Flash/EE program memory are providedon-chip. 640 bytes of nonvolatile Flash/EE data memory and256 bytes RAM are also integrated on-chip.The ADuC816 also incorporates additional analog functionalitywith a 12-bit DAC, current sources, power supply monitor,and a bandgap reference. On-chip digital peripherals include awatchdog timer, time interval counter, three timers/counters,and three serial I/O ports (SPI, UART, and I2C-compatible).On-chip factory firmware supports in-circuit serial download anddebug modes (via UART), as well as single-pin emulation modevia the EA pin.The part operates from a single 3 V or 5 V supply. When operatingfrom 3 V supplies, the power dissipation for the part is below10 mW. The ADuC816 is housed in a 52-lead MQFP package.The part operates from a single 3 V or 5 V supply. When operatingfrom 3 V supplies, the power dissipation for the part is below10 mW. The ADuC816 is housed in 52-lead MQFP and 56-leadLFCSP packages.Applications Intelligent Sensors (IEEE1451.2-Compatible) Weigh Scales Portable Instrumentation Pressure Transducers 4–20 mA Transmitters

The ADuC841/ADuC842/ADuC843 are complete smart transducer front ends, that integrates a high performance self-calibrating multichannel ADC, a dual DAC, and an optimized single-cycle 20 MHz 8-bit MCU (8051 instruction set compatible)on a single chip.The ADuC841 and ADuC842 are identical with the exception of the clock oscillator circuit; the ADuC841 is clocked directly from an external crystal up to 20 MHz whereas the ADuC842 uses a 32 kHz crystal with an on-chip PLL generating a programmable core clock up to 16.78 MHz.The ADuC843 is identical to the ADuC842 except that the ADuC843 has no analog DAC outputs.The microcontroller is an optimized 8052 core offering up to 20 MIPS peak performance. Three different memory options are available offering up to 62 kBytes of nonvolatile Flash/EE program memory. Four kBytes of nonvolatile Flash/EE data memory, 256 bytes RAM, and 2 kBytes of extended RAM are also integrated on-chip. The parts also incorporate additional analog functionality with two 12-bit DACs, power supply monitor, and a band gap reference. On-chip digital peripherals include two 16-bit Σ-Δ. DACs, a dual output 16-bit PWM, a watchdog timer, a time interval counter, three timers/counters, and three serial I/O ports (SPI, I2C, and UART).On the ADuC812 and the ADuC832, the I2C and SPI interfaces share some of the same pins. For backwards compatibility, this is also the case for the ADuC841/ADuC842/ADuC843.However, there is also the option to allow SPI operate separately on P3.3, P3.4, and P3.5, while I2C uses the standard pins. The I2C interface has also been enhanced to offer repeated start, general call, and quad addressing.On-chip factory firmware supports in-circuit serial download and debug modes (via UART) as well as single-pin emulation mode via the EA pin..Applications Optical networking—laser power control Base station systems Precision instrumentation, smart sensors Transient capture systems DAS and communications systems

The DAC08 series of 8-bit monolithic digital-to-analog convertersprovide very high speed performance coupled with low costand outstanding applications flexibility.Advanced circuit design achieves 85 ns settling times with verylow glitch energy and at low power consumption. Monotonicmultiplying performance is attained over a wide 20 to 1 referencecurrent range. Matching to within 1 LSB between reference andfull-scale currents eliminates the need for full-scale trimming inmost applications.Direct interface to all popular logic families with full noiseimmunity is provided by the high swing, adjustable thresholdlogic input.High voltage compliance complementary current outputs areprovided, increasing versatility and enabling differential operationto effectively double the peak-to-peak output swing. In manyapplications, the outputs can be directly converted to voltagewithout the need for an external op amp. All DAC08 series modelsguarantee full 8-bit monotonicity, and nonlinearities as tight as±0.1% over the entire operating temperature range are available.Device performance is essentially unchanged over the ±4.5 V to±18 V power supply range, with 33 mW power consumptionattainable at ±5 V supplies.The compact size and low power consumption make the DAC08attractive for portable and military/aerospace applications;devices processed to MIL-STD-883, Level B are available.DAC08 applications include 8-bit, 1 µs A/D converters, servomotor and pen drivers, waveform generators, audio encodersand attenuators, analog meter drivers, programmable powersupplies, LCD display drivers, high speed modems, and otherapplications where low cost, high speed, and completeinput/output versatility are required.