LTC2632HTS8-HI10 Dual 10-Bit SPI DAC Gain Adjustment 8-Lead TSOT-23 Integrated Circuit Chip

A dual 10-bit DAC in an 8-lead TSOT-23 package, the LTC2632HTS8-HI10 is part of the LTC2632 line and combines a 4.096 V reference with a SPI interface. Both outputs are buffered, so the device drives gain adjustment directly from a compact board area.

The LTC2632HTS8-HI10 reference is trimmed to 10 ppm per degree C, and the A grade holds linearity within the datasheet limit for a 10-bit converter. Output noise is 0.75 mV peak to peak from 0.1 Hz to 200 kHz, and the LTC2632 transfer function is guaranteed monotonic from -40 C to +125 C. At 4.096 V full scale one 10-bit code step is 4 mV, and the A grade LTC2632HTS8-HI10 holds that resolution across the operating range.

The LTC2632HTS8-HI10 accepts codes over the SPI interface and stores them in double-buffered latches, allowing independent or simultaneous channel updates. Power-on reset options include zero scale, midscale and high impedance for a defined start-up state. On the LTC2632HTS8-HI10 the SPI port and latch structure keep gain adjustment deterministic after every write.

Running from 2.7 V to 5.5 V at 0.4 mA typical, the LTC2632HTS8-HI10 fits portable instruments and compact control cards. An external reference may overdrive the LTC2632 internal reference when a common full-scale voltage is required. With its 4.096 V span the LTC2632HTS8-HI10 covers gain adjustment without an external amplifier stage.

Every order of the LTC2632HTS8-HI10, 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
• 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-HI10 suits gain adjustment that combine a small package with two 10-bit outputs at a 4.096 V full scale.

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