TDA8444AT
Key Features
- Eight DACs with 6-bit resolution
- Adjustable common output swing
- Push-pull outputs
- Outputs short-circuit protected
- Three programmable slave address bits
- Large supply voltage range
- Low temperature coefficient. GENERAL DESCRIPTION The interface circuit is a bipolar IC in a DIP16, SO16, or SO20 package made in an I2L-compatible 18 V process. QUICK REFERENCE DATA SYMBOL VCC ICC P VVMAX Vo(DACn) Vo(DACn)(max) Isource(min) Isink(min) PARAMETER supply voltage supply current power dissipation input effective voltage DAC output voltage minimum DAC source current minimum DAC sink current VMAX = VCC data = 1FH data = 1FH maximum DAC output voltage 1 < VMAX < VCC - 2.0 VCC = 12 V CONDITIONS - - 1 0.1 - 2 2 MIN. 4.5 TDA8444; TDA8444T; TDA8444AT The TDA8444 contains eight programmable 6-bit DAC outputs, an I2C-bus slave receiver with three (two for SO16) programmable address bits and one input (VMAX) to set the maximum output voltage. Each DAC can be programmed separately by a 6-bit word to 64 values, but VMAX determines the maximum output voltage for all DACs. The resolution will be approximately 1⁄64VMAX. At power-on all DACs are set to their lowest value. TYP. 12 14 170 - - - - - - MAX. 13.2 UNIT V mA mW V V V mA mA VCC - 2.0 VCC - 0.5 - - VMAX + 0.3 -
