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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 EEMEM for 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