DC2062A-B: Demo Board for LT4363 High Voltage Surge Stopper with Current Limit.

DC1935A-B: Demo Board for the LT4363 High Voltage Surge Stopper with Current Limit.

DC2062A-A: Demo Board for LT4363 High Voltage Surge Stopper with Current Limit.

DC1513B-AA: Demo Board for LTM9004 14-Bit Direct Conversion Receiver Subsystem.

Demonstration circuit DC1555C is intended to demonstrate the performance of the LTC4365 and LTC4365-1 Undervoltage, Overvoltage and Reverse Supply Protection Controllers. The LTC4365/LTC4365-1 protect circuits from input voltages that may be too high, too low or negative. It operates by controlling the gates of two back-to-back connected MOSFETs to keep the output in a safe range. The OV and UV protection levels are adjusted by resistive dividers at the OV and UV pins. Asserting the SHDN pin disables the MOSFETs and places the controller in a low-current shutdown state. The FAULT pin is asserted when the Controller is in shutdown mode or when the input voltage is outside of the UV or OV level.

The LTC5562 is a versatile low power mixer optimized for applications requiring very wide input bandwidth, low distortion, and low LO leakage. This mixer can be used for either upconverting or downconverting applications, and provides a nominal conversion gain of 1dB. Demonstration circuit 2483A-A showcases the LTC5562 mixer for upconverting applications while demonstration circuit 2483A-B is tuned for downconverting applications. The differential inputs are optimized for use with 1:1 transmission- line baluns, allowing very wideband impedance matching. The LTC5562 uses a 3.3V supply for low power consumption and an enable pin allows the part to be shut down for further power savings. The total mixer current is adjustable, allowing for even further power savings. The standard match frequency ranges for each board are outlined in the table below.

Demonstration circuit 1247A features the LT3582 an I2C Programmable Boost and Single Inductor Inverting DC/DC Converters with OTP. It converts a 2.7V-5.5V source to two outputs, a positive and a negative. The positive output can be programmed from 3.2V to 12.775V at 25mV intervals and the negative from -1.2V to -13.95V at 50mV intervals, all via the QuickEval™ System. A DC590B is needed for evaluation of this demo board. Table 1 below shows the maximum expected load currents for some output/input combinations. Check Maximum Load Current section on datasheet for other combinations. The LT3582 features all integrated switches and feedback resistors, a low noise control scheme, positive output disconnect function, low quiescent current, built in softstart.

Demonstration circuit 2222A features the LTC®2500-32, LTC2508-32 and LTC2512-24 ADCs. The LTC2500-32, LTC2508-32 and LTC2512-24 are low power, low noise, high speed, 32-bit/24-bit SAR ADCs with an integrated configurable digital averaging filter that operate from a single 2.5V supply. The following text refers to the LTC2508-32 but applies to all parts, the only difference being sample rate and number of bits. The DC2222A demonstrates the DC and AC performance of the LTC2508-32 in conjunction with the DC590 or DC2026 QuikEval™ and DC890 PScope™ data collection boards. Use the DC590 or DC2026 to demonstrate DC performance such as peak-to-peak noise and DC linearity. Use the DC890 if precise sampling rates are required or to demonstrate AC performance such as SNR, THD, SINAD and SFDR. The DC2222A is intended to show recommended grounding, component placement and selection, routing and bypassing for this ADC.

DC889A: Demo Board for the LT5516 800MHz to 1.5GHz Direct Conversion Quadrature Demodulator.

DC1659A-B: Demo Board for the LT6109 High Side Current Sense Amplifier with Reference and Comparators.