The LTC2499 is a 16-channel (eight differential), 24-bit, No Latency ??? ADC with Easy Drive technology and a 2-wire, I2C interface. The patented sampling scheme eliminates dynamic input current errors and the shortcomings of on-chip buffering through automatic cancellation of differential input current. This allows large external source impedances and rail-to-rail input signals to be directly digitized while maintaining exceptional DC accuracy. The LTC2499 includes a high accuracy, temperature sensor and an integrated oscillator. This device can be configured to measure an external signal (from combinations of 16 analog input channels operating in single-ended or differential modes) or its internal temperature sensor. The integrated temperature sensor offers 1/30th?C resolution and 2?C absolute accuracy. The LTC2499 allows a wide common mode input range (0V to VCC), independent of the reference voltage. Any combination of single-ended or differential inputs can be selected and the first conversion, after a new channel is selected, is valid. Access to the multiplexer output enables optional external amplifiers to be shared between all analog inputs and auto calibration continuously removes their associated offset and drift.Applications Direct Sensor Digitizer Direct Temperature Measurement Instrumentation Industrial Process Control

DC1012A-B: Demo Board for the LTC2497 16-Bit 8-/16-Channel ΔΣ ADC with Easy Drive Input Current Cancellation and I2C Interface

Demonstration circuits 1024A-A and 1024A-B are Micropower Low Noise Boost Converters With Output Disconnect featuring the LT3494 and LT3494A respectively. The demo circuits demonstrate small size and low component count in Boost configuration. Both demo versions are designed to convert a 3V-4.2V source to 15V. The only difference is in the load capability. The 1024A–A supplies 17mA at 3VIN while the 1024A–B supplies 27mA, also at 3VIN. The LT3494 features integrated Schottky diode, output disconnect function, dimming control, output sense resistor and non-audible switching frequency over the entire load range.

Demonstration circuit 1072B is a step-down converter using the LTC3561A monolithic synchronous buck regulator. The DC1072B has an input voltage range of 2.5V to 5.5V, and is capable of delivering up to 1A of output current at a jumper-selectable output voltage of 1.2V, 1.5V, 1.8V or user-defined.

DC1082A-D: Demo Board for the LTC1403A Serial 14-Bit, 2.8Msps Sampling ADCs with Shutdown.

The LTC2356-12/LTC2356-14 are 12-bit/14-bit, 3.5Msps serial ADCs with differential inputs. The devices draw only 5.5mA from a single 3.3V supply and come in a tiny 10-lead MSOP package. A Sleep shutdown feature further reduces power consumption to 13?W. The combination of speed, low power and tiny package makes the LTC2356-12/LTC2356-14 suitable for high speed, portable applications.The 80dB common mode rejection allows users to eliminate ground loops and common mode noise by measuring signals differentially from the source.The devices convert ?1.25V to 1.25V bipolar inputs differentially. The absolute voltage swing for AIN+ and AIN? extends from ground to the supply voltage.The serial interface sends out the conversion results during the 16 clock cycles following a CONV rising edge for compatibility with standard serial interfaces. If two additional clock cycles for acquisition time are allowed after the data stream in between conversions, the full sampling rate of 3.5Msps can be achieved with a 63MHz clock. Bits LTC2356-12 12 LTC2356-14 14 Applications Communications Data Acquisition Systems Uninterrupted Power Supplies Multiphase Motor Control Multiplexed Data Acquisition RFID

Demonstration circuit DC1129A is a synchronous step down converter featuring the LTC3610, the high efficiency, high density DC/DC regulator. The input voltage range is from 4.5V to 24V. The output voltage is jumper-selectable and provides 1.2V, 1.5V, 1.8V or 2.5V at 12A load current. The regulator includes the controller and power MOSFETs in the 9mm by 9 mm QFN package.

DC1162A-B: Demo Board for LTC4223 Dual Supply Hot Swap Controller for Advanced Mezzanine Card

The LT1965 series are low noise, low dropout linear regulators. The devices supply 1.1A of output current with a 310mV typical dropout voltage. Operating quiescent current is 500?A for the adjustable version, reducing to <1?A in shutdown. Quiescent current is well controlled; it does not rise in dropout as with many other regulators. The LT1965 regulators have very low output noise which makes them ideal for sensitive RF and DSP supply applications.Output voltage ranges from 1.20V to 19.5V. The LT1965 regulators are stable with output capacitors as low as 10?F. Internal protection circuitry includes reverse-battery protection, current limiting with foldback, thermal limiting and reverse-current protection. The LT1965 series are available in fixed output voltages of 1.5V, 1.8V, 2.5V, 3.3V, and as an adjustable device with a 1.20V reference voltage. The package offerings include the 5-lead TO-220, 5-lead DD-Pak as well as the thermally enhanced 8-lead MSOP and low profile (0.75mm) 8-lead 3mm ? 3mm DFN.Applications Logic Power Supplies Post Regulator for Switching Supplies Low Noise Instrumentation

Demonstration circuit 1212A-B is a monolithic step-dwon DC/DC switching regulatro featuring the LT3685 in the 3x3 DFN-10 package. The demo board provides 5V@2A from a 6.3V to 38V input and has transient protection up to 60V. The demo boards default switching frequency is 800kHz, but the LT3685 has a SYNC pin which allows frequency synchronization to an external clock over a 250kHz to 2MHz range. The LT3685's quiescent current is 0.9mA, while the LT3480 has a 70uA quiescent current. An EMC filter at the input makes the circuit compatible with EMC standard EN55022 Class B.