CM stands for common mode. So in the LTC2000 there is a common mode current that is present. There will be a common more component for the LTC1668 as well.
Does anyone know what the output current of the LTC1668 DAC is after a power cycle?
I can't find it anywhere in the datasheet.
In a circuit with a LTC1668 driving a differential buffer stage, and using precision (0.1%) resistors, I'm seeing an output gain error of -4% (there's small variation from unit to unit, but the error is always close to -4%). I've seen the same…
The LTC1668 is a 16-bit, 50Msps differential current output DAC.
The datasheet say that the COMP1 pin and COMP2 pin should be bypassed to VSS (-5V) with 0.1µF.
COMP1 is for Current Source Control Amplifier Compensation, and COMP2 is for Internal…
I want to use a LTC1668 to generate a voltage of ±10V - see attached schematic.
The problem is, that I only get about ±9,1V out of the circuit. I checked supply voltages, Reference, and Resistot values - everything OK. Then i soldered…
I designed a board using an LT1666 and I am wondering which value does the DAC holds at startup.
It seems to me that is powers up at 0xFFFF.
The datasheet is lacking this information.
A square-wave of 92kHz will be created with LTC1668. the circuit is shown below.
Its CLK pin and I/O pins are connected with a FPGA chip. Its clock is 20MHz. The input to I/O is switched between oxFFFF and ox0000 with 92kHz..
The signal between A (or…
我目前用LTC1668 DAC芯片做信号发生器，已购买了官方的DC2459A-A评估套件。 在官网上下载到的设计文件(Design Files)里面的 PCB文件，我用版本为Altium Designer 13.1.2 软件打不开。
It isn't the same part, but the LTC1668 has a similar interface. The FPGA code for the LTC1668 can be downloaded here: Solutions - DC2459A-A - LTC1668 with LT1812 Demo Board | 16-Bit, 50Msps DAC, Single-Ended ±1V outputs