DC1532A-E: Demo Board for the LTC2264-14 14-Bit, 40Msps Low Power Dual ADCs.

The LTC2268-12/LTC2267-12/LTC2266-12 are 2-channel, simultaneous sampling 12-bit A/D converters designed for digitizing high frequency, wide dynamic range signals. They are perfect for demanding communications applications with AC performance that includes 70.6dB SNR and 88dB spurious free dynamic range (SFDR). Ultralow jitter of 0.15psRMS allows undersampling of IF frequencies with excellent noise performance.DC specs include ?0.3LSB INL (typ), ?0.1LSB DNL (typ) and no missing codes over temperature. The transition noise is a low 0.3LSBRMS.The digital outputs are serial LVDS to minimize the number of data lines. Each channel outputs two bits at a time (2-lane mode). At lower sampling rates there is a one bit per channel option (1-lane mode). The LVDS drivers have optional internal termination and adjustable output levels to ensure clean signal integrity.The ENC+ and ENC? inputs may be driven differentially or single-ended with a sine wave, PECL, LVDS, TTL, or CMOS inputs. An internal clock duty cycle stabilizer allows high performance at full speed for a wide range of clock duty cycles. ? Bits LTC2268-12 12 LTC2268-14 14 Applications Communications Cellular Base Stations Software Defined Radios Portable Medical Imaging Multichannel Data Acquisition Nondestructive Testing

Phase Locked Loops - PLL WBand RF PLL VCO, 25-3000MHz

DC1532A-I: Demo Board for the LTC2266-12 12-Bit, 80Msps Low Power Dual ADCs.

DC1589A: Demo Board for the LTC4425 Linear SuperCap Charger with Current-Limited Ideal Diode and V/I Monitor.

DC1593A-C: Demo Board for LTC2635-12 Quad 12-Bit I2C VOUT DACs with 10ppm/°C Reference.

DC1593A-E: Demo Board for LTC2635-12 Quad 12-Bit I2C VOUT DACs with 10ppm/°C Reference.

BOARD EVALUATION ADJUSTABLE V

The AD5291 and AD5292 are single-channel, 256-/1024-position digital potentiometers that combine industry leading variable resistor performance with nonvolatile memory (NVM) in a compact package. These devices are capable of operating across a wide voltage range, supporting both dual supply operation?at ?10.5 V to ?16.5 V and single supply operation at +21 V to +33 V, while ensuring less than 1% end-to-end resistor tolerance error and offering 20-time programmable (20-TP) memory.The guaranteed industry leading low resistor tolerance error?feature simplifies open-loop applications as well as precision?calibration and tolerance matching applications.The AD5291 and AD5292 device wiper settings are controllable?through the SPI digital interface. Unlimited adjustments are?allowed before programming the resistance value into the 20-TP memory. The AD5291 and AD5292 do not require any?external voltage supply to facilitate fuse blow, and there are 20 opportunities for permanent programming. During 20-TP activation, a permanent blow fuse command freezes the wiper?position (analogous to placing epoxy on a mechanical trimmer).The AD5291 and AD5292 are available in a compact 14-lead?TSSOP package. The part is guaranteed to operate over the?extended industrial temperature range of ?40?C to +105?C.APPLICATIONS Mechanical potentiometer replacement Instrumentation: gain and offset adjustment Programmable voltage-to-current conversion Programmable filters, delays, and time constants Programmable power supply Low resolution DAC replacement Sensor calibration

The AD5303?/ AD5313?/ AD5323 are dual 8-/10-/12-bit buffered voltage output DACs in a 16-lead TSSOP package that operate from a single 2.5 V to 5.5 V supply, consuming 230 ?A at 3 V. Their on-chip output amplifiers allow the outputs to swing rail-to-rail with a slew rate of 0.7 V/?s. The AD5313 / AD5323 utilize a versatile 3-wire?serial interface that operates at clock rates up to 30 MHz and is?compatible with standard SPI, QSPI?, MICROWIRE?, and DSP?interface standards The references for the two DACs are derived from two reference pins (one per DAC). These reference inputs may be configured as buffered or unbuffered inputs. The parts incorporate a power-on reset circuit, which ensures that the DAC outputs power up to 0 V and remain there until a valid write to the device takes place. There is also an asynchronous active low CLR pin that clears both DACs to 0 V. The outputs of both DACs may be updated simultaneously using the asynchronous LDAC input. The parts contain a power-down feature that reduces the current consumption of the devices to 200 nA at 5 V (50 nA at 3 V) and provides software-selectable output loads while in power-down mode. The parts may also be used in daisy-chaining applications using the SDO pin.The low power consumption of these parts in normal operation makes them ideally suited to portable battery-operated equipment. The power consumption is 1.5 mW at 5 V and 0.7 mW at 3 V, reducing to 1 ?W in power-down mode.APPLICATIONS Portable battery-powered instruments Digital gain and offset adjustment Programmable voltage and current sources Programmable attenuators