Description The LT®6700/LT6700HV combine two micropower, low voltage comparators with a 400mV reference in a 6-lead SOT-23 or tiny DFN package. Operating with supplies from 1.4V up to 18V, these devices draw only 6.5µA, making them ideal for low voltage system monitoring. Hysteresis is included in the comparators, easing design requirements to insure stable output operation.
Features Internal 400mV Reference Total Threshold Error: ±1.25% Max at 25°C Inputs and Outputs Operate to 36V Wide Supply Range: 1.4V to 18V Specified for –55°C to 125°C Temperature Range Low Quiescent Current: 6.5µA Typ at 5V Internal Hysteresis: 6.5mV Typ Low Input Bias Current: ±10nA Max Over-The-Top® Input also Includes Ground Open-Collector Outputs Allow Level Translation Choice of Input Polarities: LT6700-1/LT6700-2/LT6700-3/LT6700HV-1/LT6700HV-2/LT6700HV-3 Available in Low Profile (1mm) SOT-23 (ThinSOT™) and 2mm × 3mm DFN Packages
applications Battery-Powered System Monitoring Threshold Detectors Window Comparators Relay Driving Industrial Control Systems Handheld Instruments Automotive Monitor and Controls
DESCRIPTION The P82B96 is a bipolar IC that creates a non-latching, bi-directional, logic interface between the normal I2C-bus and a range of other bus configurations. It can interface I2C-bus logic signals to similar buses having different voltage and current levels. For example it can interface to the 350 µA SMB bus, to 3.3 V logic devices, and to 15 V levels and/or low impedance lines to improve noise immunity on longer bus lengths.
FEATURES • Bi-directional data transfer of I2C-bus signals • Isolates capacitance allowing 400 pF on Sx/Sy side and 4000 pF on Tx/Ty side • Tx/Ty outputs have 60 mA sink capability for driving low impedance or high capacitive buses • 400 kHz operation over at least 20 meters of wire (see AN10148) • Supply voltage range of 2 V to 15 V with I2C logic levels on Sx/Sy side independent of supply voltage • Splits I2C signal into pairs of forward/reverse Tx/Rx, Ty/Ry signals for interface with opto-electrical isolators and similar devices that need uni-directional input and output signal paths. • Low power supply current • ESD protection exceeds 3500 V HBM per JESD22-A114, 250 V DIP package / 400 V SO package MM per JESD22-A115, and 1000 V CDM per JESD22-C101 • Latch-up free (bipolar process with no latching structures) • Packages offered: DIP, SO, and TSSOP
TYPICAL APPLICATIONS • Interface between I2C buses operating at different logic levels (e.g., 5 V and 3 V or 15 V) • Interface between I2C and SMB (350 µA) bus standard. • Simple conversion of I2C SDA or SCL signals to multi-drop differential bus hardware, e.g., via compatible PCA82C250. • Interfaces with Opto-couplers to provide Opto isolation between I2C-bus nodes up to 400 kHz.
Description SKY77548 is a transmit and receive Front-End Module (FEM) with Integrated Power Amplifier Control (iPAC™) for Dual-band cellular handsets comprising GSM850/900 and DCS1800/PCS1900 operation. Designed in a low profile, compact form factor, the SKY77548 offers a complete Transmit VCO-to Antenna and Antenna-to-Receive SAW filter solution. The FEM also supports Class 12 General Packet Radio Service (GPRS) multi-slot operation.
Features • High efficiency 44% (GSM850/900) 42% (DCS1800/PCS1900) • Low transmit supply current 1.30 A (GSM850/900) 0.86 A (DCS1800/PCS1900) • Internal ICC sense resistor for iPAC • Closed loop iPAC • 50 Ω matched Input/Output • Tx–VCO-to-antenna and antenna-to-Rx-SAW filter RF interface • PHEMT RF switch affords high linearity, low insertion loss, and less than 20 μA supply current in receive modes • Small outline - 8 mm x 6 mm • Low profile - 1.05 mm • Compatible with multiple logic families • Low APC current: 25 μA
Applications • Dual-band cellular handsets encompassing - Class 4 GSM850/900 - DCS1800/PCS1900 - Class 12 GPRS multi-slot operation
GENERAL DESCRIPTION The AD5235 is a Dual-channel, nonvolatile memory,digitally controlled potentiometer2 with 1024-step resolution, offering guaranteed maximum low resistor tolerance error of ±8%. The device performs the same electronic adjustment function as a mechanical potentiometer with enhanced resolution, solid state reliability, and superior low temperature coefficient performance. The versatile programming of the AD5235 via an SPI®-compatible serial interface allows 16 modes of operation and adjustment including scratchpad programming, memory storing and restoring, increment/decrement, ±6 dB/step log taper adjustment, wiper setting readback, and extra EEMEMfor user defined information such as memory data for other components, look-up table, or system identification information.
FEATURES Dual-channel, 1024-position resolution 25 kΩ, 250 kΩ nominal resistance Maximum ±8% nominal resistor tolerance error Low temperature coefficient: 35 ppm/°C 2.7 V to 5 V single supply or ±2.5 V Dual supply SPI-compatible serial interface Nonvolatile memory stores wiper settings Power-on refreshed with EEMEM settings Permanent memory write protection Resistance tolerance stored in EEMEM 26 bytes extra nonvolatile memory for user-defined information 1M programming cycles 100-year typical data retention
APPLICATIONS DWDM laser diode driver, optical supervisory systems Mechanical potentiometer replacement Instrumentation: gain, offset adjustment Programmable voltage-to-current conversion Programmable filters, delays, time constants Programmable power supply Low resolution DAC replacement Sensor calibration
The ISL6323B Dual PWM controller delivers high efficiency and tight regulation from two synchronous buck DC/DC converters. The ISL6323B supports hybrid power control of AMD processors which operate from either a 6-bit parallel VID interface (PVI) or a serial VID interface (SVI). The Dual output ISL6323B features a multi-phase controller to support uniplane VDD core voltage and a single phase controller to power the Northbridge (VDDNB) in SVI mode. Only the multi-phase controller is active in PVI mode to support uniplane VDD only processors.
Features • Processor Core Voltage Via Integrated Multi-Phase Power Conversion • Configuration Flexibility - 2-Phase Operation with Internal Drivers - 3- or 4-Phase Operation with External PWM Drivers • PSI_L Support with Phase Shedding for Improved Efficiency at Light Load • Serial VID Interface Inputs - Two Wire, Clock and Data, Bus - Conforms to AMD SVI Specifications • Parallel VID Interface Inputs - 6-bit VID input - 0.775V to 1.55V in 25mV Steps - 0.375V to 0.7625V in 12.5mV Steps • Precision Core Voltage Regulation - Differential Remote Voltage Sensing - ±0.6% System Accuracy Over-Temperature - Adjustable Reference-Voltage Offset • Optimal Processor Core Voltage Transient Response - Adaptive Phase Alignment (APA) - Active Pulse Positioning Modulation • Fully Differential, Continuous DCR Current Sensing - Accurate Load Line Programming - Precision Channel Current Balancing • Variable Gate Drive Bias: 5V to 12V • Overcurrent Protection • Multi-tiered Overvoltage Protection • Selectable Switching Frequency up to 1MHz • Simultaneous Digital Soft-Start of Both Outputs • Processor NorthBridge Voltage Via Single Phase Power Conversion • Precision Voltage Regulation - Differential Remote Voltage Sensing - ±0.6% System Accuracy Over Temperature • Serial VID Interface Inputs - Two Wire, Clock and Data, Bus - Conforms to AMD SVI Specifications • Overcurrent Protection • Continuous DCR Current Sensing • Variable Gate Drive Bias: 5V to 12V • Simultaneous Digital Soft-Start of Both Outputs • Selectable Switching Frequency up to 1MHz • Pb-Free (RoHS Compliant)
DESCRIPTION The PCA9536 is 8-pin CMOS devices that provides 4 bits of General Purpose parallel Input/Output (GPIO) expansion for I2C/SMBus applications and were developed to enhance the Philips family of IC I/O expanders. I/O expanders provides a simple solution when additional I/O is needed for ACPI power switches, sensors, pushbuttons, LEDs, fans, etc.
FEATURES • 4-bit I2C GPIO • Operating power supply voltage range of 2.3 to 5.5 V • 5 V tolerant I/Os • Polarity inversion register • Active low interrupt output • Low stand-by current • Noise filter on SCL/SDA inputs • No glitch on power-up • Internal power-on reset • 4 I/O pins which default to 4 inputs with 100 kΩ internal pull-up resistor • 0 to 400 kHz clock frequency • ESD protection exceeds 2000 V HBM per JESD22-A114, 200 V MM per JESD22-A115 and 1000 V CDM per JESD22-C101 • Latch-up testing is done to JESDEC Standard JESD78 which exceeds 100 mA • Two packages offered: SO8 and TSSOP8
DESCRIPTION The LTC®2270 is a two-channel simultaneous sampling 16-bit A/D converter designed for digitizing high frequency, wide dynamic range signals. It is perfect for demanding applications with AC performance that includes 84.1dB SNR and 99dB spurious free dynamic range (SFDR).
FEATURES Two-Channel Simultaneously Sampling ADC 84.1dB SNR (46μVRMS Input Referred Noise) 99dB SFDR ±2.3LSB INL(Max) Low Power: 160mW Total, 80mW per Channel Single 1.8V Supply CMOS, DDR CMOS, or DDR LVDS Outputs Selectable Input Ranges: 1VP-P to 2.1VP-P 200MHz Full Power Bandwidth S/H Shutdown and Nap Modes Serial SPI port for Configuration Pin Compatible with LTC2180: 16-Bit, 25Msps, 78mW LTC2140-14: 14-Bit, 25Msps, 50mW 64-Lead (9mm × 9mm) QFN Package
APPLICATIONS Low Power Instrumentation Software Defined Radios portable Medical Imaging Multi-Channel Data Acquisition
DESCRIPTION The LTC®2185/LTC2184/LTC2183 are two-channel simultaneous sampling 16-bit A/D converters designed for digitizing high frequency, wide dynamic range signals. They are perfect for demanding communications applica tions with AC performance that includes 76.8dB SNR and 90dB spurious free dynamic range (SFDR). Ultralow jitter of 0.07psRMS allows undersampling of IF frequencies with excellent noise performance.
FEATURES Two-Channel Simultaneously Sampling ADC 76.8dB SNR 90dB SFDR Low Power: 370mW/308mW/200mW Total 185mW/154mW/100mW per Channel Single 1.8V Supply CMOS, DDR CMOS, or DDR LVDS Outputs Selectable Input Ranges: 1VP-P to 2VP-P 550MHz Full Power Bandwidth S/H Optional Data Output Randomizer Optional Clock Duty Cycle Stabilizer Shutdown and Nap Modes Serial SPI port for Configuration 64-Pin (9mm × 9mm) QFN Package
APPLICATIONS Communications Cellular Base Stations Software Defined Radios portable Medical Imaging Multi-Channel Data Acquisition Nondestructive Testing
Description The SF20A600HPI is an ultrafast rectifier. It has a low forward voltage drop and reverse recovery time (trr<35ns). The device is intended for use as a free wheeling, clamping rectifier in a variety of switching power supplies and other power switching applications.
Features Low forward voltage drop and leakage current Ultrafast reverse recovery time (trr<35ns) Low power loss and high efficiency Dual common cathode rectifier construction Full lead (Pb)-free and RoHS compliant device
Applications Switching power supply Power inverters Free-wheeling diode Power conversion system Motor drives
General Description This package integrates two N-Channel devices connected internally in common-source configuration. This enables very low package parasitics and optimized thermal path to the common source pad on the bottom. Provides a very small footprint (3.3 x 5 mm) for higher power density.
Features Max rDS(on) = 20 mΩ at VGS = 10 V, ID = 7 A Max rDS(on) = 32 mΩ at VGS = 6 V, ID = 5.5 A Ideal for flexible layout in secondary side synchronous rectification Termination is Lead-free and RoHS Compliant 100% UIL tested
Applications Isolated DC-DC Synchronous Rectifiers Common Ground Load Switches