Ultra-Small, Quad-Channel, 8-/10-/12-Bit Buffered Output DACs with Internal Reference and I2C Interface
SGM5348 SGM5348.pdf

No.10699

FEATURES

• Low Power Consumption (0.5mW/CH)

• Integrating 8 Channels of 12-Bit DAC

• Built-in Rail-to-Rail Output Amplifier:

• Sink/Source Current with Short Current Control

• Daisy-Chain Capability

• Simultaneous 8 Channels Output Updating

• Individual Channel Power-Down Capability

• 0.6μA (TYP) ICC for Power-Down Mode

• 0.1% (TYP) Gain Error for All Channels

• Interface Sees No Quiescent Current when VBUS < VCC

• Power-On Reset: Output Reset to GND

• Serial Data Input: Up to 40MHz Operation

• TTL Compatible Input Logic Level

• Wide Power Supply Range: 2.8V to 5.5V

• Dual Reference Voltages with Range of 0.5V to VCC

DESCRIPTION

The SGM5348-12 features 8 channels of digital-to- analog converter (DAC) with output amplifiers. The output amplifier provides high current drive capability. The digital data is sent via SPI interface, and cascaded connections can be used. The SGM5348-12 also offers daisy-chain operation, where an unlimited number of SGM5348-12s can be updated simultaneously using a single serial interface.

There are two references for the SGM5348-12. One reference input serves channels 1 through 4, while the other reference serves channels 5 through 8. Each reference can be set independently between 0.5V and VCC, providing the widest possible output dynamic range. The SGM5348-12 has a 16-bit input shift register that controls the mode of operation, the power-down condition and the register/output value of the DAC channels. All 8 channels DAC outputs can be updated simultaneously or individually.

The SGM5348-12 is available in Green TSSOP-16 and TQFN-3×3-16L packages. It operates over the extended industrial temperature range of -40℃ to +125℃.

APPLICATION CIRCUIT
PIN CONFIGUTION
网站地图