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INTEGRATED CIRCUITS DATA SHEET TDA8444; TDA8444T; TDA8444AT Octuple 6-bit DACs with I2C-bus Product specification Supersedes data of March 1991 File under Integrated Circuits, IC01 1999 Apr 29 Philips Semiconductors Product specification Octuple 6-bit DACs with I2C-bus 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 - ORDERING INFORMATION TYPE NUMBER TDA8444 TDA8444T TDA8444AT PACKAGE NAME DIP16 SO16 SO20 DESCRIPTION plastic dual in-line package; 16 leads (300 mil); long body plastic small outline package; 16 leads; body width 7.5 mm plastic small outline package; 20 leads; body width 7.5 mm VERSION SOT38-1 SOT162-1 SOT163-1 1999 Apr 29 2 Philips Semiconductors Product specification Octuple 6-bit DACs with I2C-bus BLOCK DIAGRAM TDA8444; TDA8444T; TDA8444AT handbook, full pagewidth A0 5 A1 6 A2 7 VCC 1 VEE 8 SDA SCL 3 4 I2C BUS SLAVE RECEIVER REFERENCE VOLTAGE GENERATOR TDA8444 VMAX 2 DAC0 9 DAC0 DAC1 10 DAC1 DAC2 11 DAC2 DAC3 12 DAC3 DAC4 13 DAC4 DAC5 14 DAC5 DAC6 15 DAC6 DAC7 16 DAC7 MGH513 Fig.1 Block diagram. 1999 Apr 29 3 Philips Semiconductors Product specification Octuple 6-bit DACs with I2C-bus PINNING PIN SYMBOL VCC VMAX SDA SCL A0 A1 A2 VEE DAC0 DAC1 DAC2 DAC3 DAC4 DAC5 DAC6 DAC7 n.c. TDA8444 (DIP16) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 - TDA8444T (SO16) 1 2 3 4 6 7 - 8 9 10 11 12 13 14 15 16 5 TDA8444AT (SO20) 1 2 3 4 7 8 9 10 11 13 14 15 16 17 18 20 5, 6, 12, 19 supply voltage TDA8444; TDA8444T; TDA8444AT DESCRIPTION control input for DAC maximum output voltage I2C-bus serial data input/output I2C-bus serial clock programmable address bit 0 for I2C-bus slave receiver programmable address bit 1 for I2C-bus slave receiver programmable address bit 2 for I2C-bus slave receiver grou