LTC2632CTS8-HZ12#TRMPBF

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The LTC2632CTS8-HZ12#TRMPBF is a quad 12-bit current outputs digital-to-analog converter (DAC) that operates from a single 2.5 V to 5.5 V supply and offers flexible power saving modes. It broadcasts up to four DAC outputs from a single pin output, enabling up to 96 unique 12-bit current sources. This device features an industry-leading –40°C to 125°C temperature range and an unprecedented low quiescent current (2 µA).

The LTC2632CTS8-HZ12#TRMPBF is optimized for use as a low power, highly accurate current source in a variety of applications. It is well suited for driving optocouplers and other current loads, or generating analog voltages from VRMs or VARs. Its wide operating temperature range and small package make it ideal for motor control systems and temperature sensing applications, such as thermistors, thermocouples, or RTDs.

The LTC2632CTS8-HZ12#TRMPBF offers excellent performance specifications of 0.1 % max full-scale accuracy, 1 A full-scale value, 1 µA max output current, and 3 µA init current. Additionally, it features reset, power on, and a low current logic interface (<10 µA).

The device contains an on-chip output buffer that can be used to produce either a voltage output or a current output. For current output, the output range can be set to 4 mA, 8 mA, 16 mA, 32 mA, 64 mA, or 128 mA. The output buffer can provide up to 500 mA to drive some loads and can be operated with an external bias current. In voltage output mode, the output range can be programmed to 2.5 V, 5 V, 10 V, 15 V, 20 V, or 25 V.

The LTC2632CTS8-HZ12#TRMPBF provides flexibility and low power consumption in a tiny 5-lead TSOT-23 or 6-lead MSOP package. It has an EEPROM interface to store 4 code words, with each word representing a particular DAC output value. The device is available in two speed grades, a low speed version operating up to 400 kHz and a high speed version operating up to 1.2 MHz. The low speed version is optimized for very low power consumption, while the high speed version is well suited for a wide range of applications.

The device supports up to 16-bit readback, with a ±5 µA current accuracy over the supply voltage range. Its advanced self-calibration feature enables the outputs to be in full scale accuracy over temperature, making it ideal for precision current and voltage applications. Further, its Sense pin can be used as an output pin, eliminating the need for additional output stage components.

In summary, the LTC2632CTS8-HZ12#TRMPBF is a highly integrated quad digital-to-analog converter that offers a wide operating temperature range, low power consumption and excellent performance. With its advanced features, this device is well suited for many precision current output and voltage output applications including motor control systems, optocouplers, and temperature sensing.

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