MP7543

S 12-Bit DAC with Serial Digital Input Interface a t +1/2 LSB from Tmin to Tmax Nonlinearity a Lowest DSensitivity to Amplifier V Low.Output Capacitance w 4-Quadrant Multiplication Full w Latch-Up Free w Asynchronous CLEAR Input OS FEATURES e e h U 4 t m o .c BENEFITS MP7543 5 V CMOS Serial Input 12-Bit Digital-to-Analog Converter Compatible with Serial Addressing Systems Serial Load On Positive or Negative Strobes +5 V Supply Operation 3 V Version: MP75L43 4-Bit Parallel Version: MP7542 GENERAL DESCRIPTION The MP7543 is a precision, 12-bit CMOS 4-quadrant multiplying Digital-to-Analog Converter designed for serial interface applications. The MP7543 consists of two 12-bit registers, control logic and a 12-bit multiplying D/A converter. The input register (register A) is a 12-bit serial-in parallel-out shift register. Serial data at the SR1 pin is clocked into Register A on the leading or trailing edge (user selected) of the strobe input, with the MSB loaded first. Register B is a 12-bit parallel-in parallel-out register that follows register A. The contents of register A are loaded into register B SIMPLIFIED BLOCK DIAGRAM w Rev. 2.00 w .D w t a S a e h under control of the Load inputs. A CLEAR input is provided for the asynchronous resetting of register B to all 0’s. The MP7543 is manufactured using an advanced thin film monolithic CMOS fabrication process. A unique decoding technique is utilized yielding excellent accuracy and stabil...