LTC1454IS#TRPBF

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The LTC1454IS#TRPBF is an integrated data acquisition digital-to-analog converter (DAC). It offers a 14-bit resolution and a ±6.8-V full-scale output with a full-on gain error of only ±25 ppm and a power supply of ±5 V. The device is capable of monotonically tracking with a linearity error of 1 LSB typ and 10 LSB max. In addition, it features low power dissipation (only 1 mW per channel), fast settling time (2 μs typ), and a wide range of current output programming abilities.

In terms of applications, the LTC1454IS#TRPBF is suitable for applications that require high accuracy and fast settling times such as timer/counter analog output and CPU-to-DAC digital control. It is also suitable for applications in embedded controllers, digital power supply control, motor control, medical instrumentation and programmable logic controllers.

The operating principle of the LTC1454IS#TRPBF is based on a modified R-2R topology with velocity matching of the switch structure. The device operates as a voltage-output DAC, which can be programmed by latch data, CLK, and LE signals. The data is clocked into the 8-bit shift register, which is the core of the device. The device uses a MXFR pin to control the current at the end of the shift register when the LE input is low. A low LE signal latches the last 4 data bits at the end of the clock cycle, allowing the DAC to track the programmed current accurately.

The LTC1454IS#TRPBF offers a wide range of programming options, allowing users to program the device with a wide range of current values. The device can be used to program outputs with a resolution of up to 16 bits, with output codes ranging from 0000h to 7FFFh. In addition, the device features a slew rate limiting mode, which enables a smoother transition between adjacent output codes. The device also features a zero-code overwrite, which allows the current output to be overridden with a new output code.

The LTC1454IS#TRPBF is an ideal choice for DAC applications due to its high accuracy and fast settling time. Its wide range of programming options and slew rate limiting capabilities make it an ideal choice for both embedded applications and programmable logic controllers.Its 14-bit resolution and wide range of current output programming capabilities make it an ideal choice for applications requiring high accuracy and fast settling time.

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