LTC2632HTS8-LI12 Dual 12-Bit SPI DAC 2.5V Precision 8-Lead TSOT-23 Integrated Circuit Chip

The LTC2632HTS8-LI12 integrates two 12-bit voltage output DAC channels, a 2.5 V reference and a SPI interface in an 8-lead TSOT-23 package. It is a LTC2632 device intended for 2.5v precision where board space and channel count both matter.

On the LTC2632HTS8-LI12 the internal reference holds 10 ppm per degree C, and A grade parts meet the 12-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 -40 C to +125 C. At 2.5 V full scale one 12-bit code step is 0.61 mV, and the A grade LTC2632HTS8-LI12 holds that resolution across the operating 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 LTC2632HTS8-LI12 can be selected as zero scale, midscale or high impedance, which defines the output before the first command. On the LTC2632HTS8-LI12 the SPI port and latch structure keep 2.5v precision deterministic after every write.

Supply range for the LTC2632HTS8-LI12 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 2.5 V source. With its 2.5 V span the LTC2632HTS8-LI12 covers 2.5v precision without an external amplifier stage.

Every order of the LTC2632HTS8-LI12, 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 12-bit LTC2632 voltage output DAC channels
• 2.5 V full-scale output from the internal reference
• 10 ppm per degree C reference temperature coefficient
• A grade linearity specified over the full code range
• Low noise: 0.75 mV peak to peak from 0.1 Hz to 200 kHz
• Guaranteed monotonic from -40 C to +125 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 LTC2632HTS8-LI12 addresses 2.5v precision where two 12-bit channels and a 2.5 V reference must fit a TSOT-23 outline.

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We also carry the related parts shown below, so mixed bills of material can ship together from a single supplier.