LTC2632CTS8-HI12 Dual 12-Bit SPI DAC Wide Output Swing 8-Lead TSOT-23 Integrated Circuit Chip

The LTC2632CTS8-HI12 is a dual 12-bit voltage output digital to analog converter from the LTC2632 family, supplied in an 8-lead TSOT-23 package. It uses an SPI interface and a 4.096 V internal reference, giving two buffered channels for wide output swing in a compact outline.

Reference accuracy on the LTC2632CTS8-HI12 is 10 ppm per degree C, and linearity holds across the full 12-bit code range. The LTC2632 output noise is 0.75 mV peak to peak over 0.1 Hz to 200 kHz, with monotonic behavior from 0 C to +70 C. At 4.096 V full scale one 12-bit code step is 1 mV, and the LTC2632CTS8-HI12 holds that resolution over its rated range.

Each LTC2632 channel has a data latch that can be preloaded before an update, and the LTC2632CTS8-HI12 offers power-on reset to zero scale, midscale or high impedance. This keeps the analog output defined while the system supply is still ramping. On the LTC2632CTS8-HI12 the SPI port and latch structure keep wide output swing deterministic after every write.

The LTC2632CTS8-HI12 operates from 2.7 V to 5.5 V and draws 0.4 mA at 3 V, which suits battery powered and loop powered designs. Where a system reference already exists, the LTC2632 internal reference can be overdriven so both channels share the same full-scale voltage. With its 4.096 V span the LTC2632CTS8-HI12 covers wide output swing without an external amplifier stage.

Every order of the LTC2632CTS8-HI12, 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
• 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-HI12 is built for wide output swing that need two stable 12-bit outputs with a 4.096 V span in an 8-lead TSOT-23 footprint.

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