LTC2634CUD-HMX10#TRPBF

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The LTC2634CUD-HMX10#TRPBF is a 10-bit high performance successive approximation register (SAR) digital to analog converter (DAC) with a rail-to-rail output under the Data Acquisition - Digital to Analog Converters (DAC) category. It is available in the 8-pin DIP, 10-pin MSOP, and 10-lead XDFN packages.

The LTC2634CUD-HMX10#TRPBF provides 10-bit resolution and 4ppm/°C drift accuracy, making it suitable for precision control applications that require accuracy and low drift. It also supports two power supplies and rail-to-rail outputs for direct operation from ±2.25V to ±18V supplies.

The LTC2634CUD-HMX10#TRPBF is capable of multiplying reference voltages (2.5V to 16.5V) by four, enabling it to operate up to 26V when a 5V reference is used. Its low power consumption of 1µA in shutdown mode and 7.5mA in normal operation make it suitable for battery powered and portable applications, while its fast settling time of 250ns and 0.09φs per step allow for fast updating applications.

With an operating temperature range of -40°C to +85°C, the LTC2634CUD-HMX10#TRPBF is suitable for harsh environments making it a great choice for automotive, industrial, and marine applications. It also comes with a power-on reset that sets the DAC output to mid-scale, eliminating the need for an external reset. The device also comes with an optional power-up prevent feature to prevent inaccurate voltage outputs during power-up.

The LTC2634CUD-HMX10#TRPBF operates from a 2-wire I2C serial interface that accepts 4-wire commands and allows the user to control multiple devices on the same bus. It also features an incremental register interface, with which the user can double-buffered DAC registers. The device also provides an active-low power on reset, a reset pin to disable the voltage buffers, and a data-latch pin.

The LTC2634CUD-HMX10#TRPBF Direct-Coupled SAR (Successive Approximation Register) features a voltage divider network to compare the DAC output voltage with the reference voltage and then convert the digital data value into an analog voltage at the output pin. A single internal clock cycles the successive-approximation process of the SAR, which is then loaded into a DAC register and converted into an analog output.

The power of the LTC2634CUD-HMX10#TRPBF makes it an ideal choice for a variety of applications including voltage controlled oscillators, servo controllers, digital adjust potentiometers, and closed-loop motor/servo control systems. Furthermore, its low power consumption, wide operating temperature range, wide supply voltage range and fast settling time make it a great option for embedded and handheld applications.

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