LTC2632CTS8-HZ10 Dual 10-Bit SPI DAC Resolution Setting 8-Lead TSOT-23 Integrated Circuit Chip

A dual 10-bit DAC in an 8-lead TSOT-23 package, the LTC2632CTS8-HZ10 is part of the LTC2632 line and combines a 4.096 V reference with an SPI interface. Both outputs are buffered, so the device drives resolution setting directly from a small board area.

On the LTC2632CTS8-HZ10 the internal reference holds 10 ppm per degree C, and the converter meets its 10-bit linearity limit. Noise for the LTC2632 is 0.75 mV peak to peak from 0.1 Hz to 200 kHz, and monotonic operation is guaranteed from 0 C to +70 C. At 4.096 V full scale one 10-bit code step is 4 mV, and the LTC2632CTS8-HZ10 holds that resolution over its rated range.

Data is written through the SPI port into latches, so a channel can be loaded and then released with a single update. The power-on reset state of the LTC2632CTS8-HZ10 can be selected as zero scale, midscale or high impedance, which defines the output before the first command. On the LTC2632CTS8-HZ10 the SPI port and latch structure keep resolution setting deterministic after every write.

Supply range for the LTC2632CTS8-HZ10 is 2.7 V to 5.5 V with 0.4 mA typical current at 3 V. The LTC2632 reference can also be driven externally when the DAC must track a shared system rail instead of its own 4.096 V source. With its 4.096 V span the LTC2632CTS8-HZ10 covers resolution setting without an external amplifier stage.

Every order of the LTC2632CTS8-HZ10, part of the LTC2632 dual DAC line, ships in 8-lead TSOT-23 packaging with full traceability, RoHS compliant and lead free, and samples plus volume pricing are available on request.

• Two 10-bit LTC2632 voltage output DAC channels
• 4.096 V full-scale output from the internal reference
• 10 ppm per degree C reference temperature coefficient
• Commercial grade linearity specification
• Low noise: 0.75 mV peak to peak from 0.1 Hz to 200 kHz
• Guaranteed monotonic from 0 C to +70 C
• Selectable internal or external reference
• 2.7 V to 5.5 V supply range
• Low power: 0.4 mA at 3 V
• Power-on reset to zero scale, midscale or high impedance
• Double-buffered data latches
• SPI compatible serial interface
• 8-lead TSOT-23 package

• Portable instrumentation
• Digital gain and offset adjustment
• Programmable reference levels
• Sensor calibration
• Battery powered control systems

The LTC2632CTS8-HZ10 addresses resolution setting where two 10-bit channels and a 4.096 V reference must fit a TSOT-23 outline.

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