LTC1344CG#PBF

Interface - Signal Terminators

The LTC1344CG#PBF is a 16-bit, self-calibrating and temperature compensated voltage reference. It is designed to provide a highly stable low temperature coefficient (VoltageReference over temperature) output of 2.5V to 6.5V range. The LTC1344CG#PBF is optimized to minimize temperature-induced system errors and improve circuit performance in a variety of applications.

Grade of Precision

The LTC1344CG#PBF caters to demanding applications requiring accuracy and precision over a wide temperature range. It offers a very low-noise grade of precision to ensure a stable reference voltage, even in high-noise environments. The combined output regulation and temperature coefficient ($\Delta V/\Delta T$) of the device is typically $\pm0.05$ppm/°C and temperature drift is typically $\pm0.005$mV/°C.

Power Supply Filtering

The LTC1344CG#PBF applies power supply filtering to minimize transients and reflections on the power supply line of up to 1$\mu$V RMS. It also helps to extend headroom by using a low-noise Die Bias Circuit which maintains good output regulation in both single and dual-supply operation.

Current Consumption

The current consumption of the LTC1344CG#PBF is typically 200$\mu$A over the temperature range of -40°C to +85°C. It also features disable function which allows the user to turn off the reference and reduce current consumption to minimise power dissipation on board.

Applications

The LTC1344CG#PBF is ideal for a variety of applications, including Analog-to-Digital Converters (ADCs) and Digital-to-Analog Converters (DACs), Data Acquisition Systems, Digital Signal Processing circuits, and Video Display Systems. It is also designed to improve the performance of Phase Locked Loops (PLLs), Digital Filter Design, Gain Stabilization, Constant Current Sources, and other High Accuracy Systems.

Working Principle

The operation of the LTC1344CG#PBF is based on its unique architecture. It utilizes an advanced control loop to regulate the output voltage, independent of the load current, supply voltage, and temperature. By combining the precise gain factors, pre-calibrated temperature coefficients, and an error amplifier, it maintains an output voltage that is accurate to within ±2.5mV over a temperature range of -40°C to +85°C. The device also features a synchronous diode to reduce the output impedance, thus ensuring greater accuracy and stability.

The LTC1344CG#PBF is the first 16-bit voltage reference featuring integrated power supply filtering and temperature-compensated voltage reference. It is designed to meet the demanding requirements of today\'s high precision, mixed-traffic and low-voltage power management applications.