MAX5480 19-1300 Rev 0 10/97 8-Bit Parallel DAC in QSOP-16 Package General Description Features The MAX5480 is a CMOS, 8-bit digital-to-analog con- QSOP-16 Package (same footprint as SO-8) verter (DAC) that interfaces directly with most micro- Single +5V Supply Operation processors. On-chip input latches make the DAC load cycle interface similar to a RAM write cycle, where CS V or I Operation OUT OUT and WR are the only control inputs required. 8-Bit Parallel Interface Linearity of 1/2LSB is guaranteed, and power con- sumption is less than 500W. Monotonicity is guaran- Guaranteed Monotonic Over Temperature teed over the full operating temperature range. Low Power Consumption100A max The MAX5480 can be operated in either voltage-output 1/2LSB Linearity Over Temperature or current-output mode. It is available in a small 16-pin QSOP package. Applications Ordering Information Digitally Adjusted Power Supplies Programmable Gain PIN- ERROR PART TEMP. RANGE PACKAGE (LSB) Automatic Test Equipment MAX5480ACEE 0C to +70C 16 QSOP 1/2 MAX5480BCEE 0C to +70C 16 QSOP 1/2 Portable, Battery-Powered Instruments MAX5480AEEE -40C to +85C 16 QSOP 1/2 VCO Frequency Control MAX5480BEEE -40C to +85C 16 QSOP 1/2 RF Transmit Control in Portable Radios Typical Operating Circuit Pin Configuration V V REF DD TOP VIEW R1 OUT1 1 16 RFB R2 2k 15 14 1k OUT2 2 15 REF 16 REF V DD RFB GND 3 14 V DD DATA 10pF D7D0 411 INPUTS 1 MAX5480 D7 (MSB) 4 13 WR OUT1 MAX4330 V OUT D6 5 12 CS 12 CS OUT2 MAX5480 2 D5 6 11 D0 (LSB) 13 WR D4 7 10 D1 GND 3 D3 8 9 D2 R1 AND R2 USED ONLY IF GAIN QSOP ADJUSTMENT IS REQUIRED. Maxim Integrated Products 1 For free samples & the latest literature: 8-Bit Parallel DAC in QSOP-16 Package ABSOLUTE MAXIMUM RATINGS V to GND............................................................-0.3V to +17V Operating Temperature Ranges DD REF to GND .........................................................................25V MAX5480 CEE....................................................0C to +70C RFB to GND .........................................................................25V MAX5480 EEE.................................................-40C to +85C Digital Inputs to GND .................................-0.3V to (V + 0.3V) Storage Temperature Range .............................-65C to +160C DD OUT1, OUT2 to GND................................................-0.3V to V Continuous Power Dissipation (T = +70C) DD A MAX5480 EE (derate 8.3mW/C above +70C) ........667mW Lead Temperature (soldering 10sec) ..............................+300C Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS (V = +5V, V = +10V, V = V = 0V, Circuit of Figure 1, T = T to T , unless otherwise noted.) DD REF OUT1 OUT2 A MIN MAX PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS DC ACCURACY Resolution 8 Bits Relative Accuracy INL 1/2 LSB Differential Nonlinearity DNL All grades guaranteed monotonic over temperature 1 LSB Gain Error (Note 1) T = T to T 1 LSB A MIN MAX Gain Temperature 2 ppm/C Coefficient (Note 2) T = +25C 0.002 0.08 A MAX5480A (Note 3) T = T to T 0.01 0.16 A MIN MAX Supply Rejection PSR %FSR/% T = +25C 0.002 A MAX5480B T = T to T 0.01 A MIN MAX T = +25C 50 Output Leakage Current V = 10V A REF nA DAC code = full scale (I ) T = T to T 400 OUT1 A MIN MAX T = +25C 50 Output Leakage Current V = 10V A REF nA DAC code = zero scale (I ) T = T to T 400 OUT2 A MIN MAX REFERENCE INPUT Input Resistance R pin 15 to GND 5 10 20 k REF DYNAMIC PERFORMANCE D0D7 = 0V to T = +25C 400 A MAX5480A V or V to 0V, DD DD (Note 3) Output Current Settling Time WR = CS = 0V, T = T to T 500 ns A MIN MAX to 1/2LSB OUT1 load = 100 13pF MAX5480B T = +25C 250 A T = +25C 0.25 V = 10V, A REF MAX5480A AC Feedthrough 100kHz sine (Note 3) T = T to T 0.5 ns A MIN MAX (OUT1 or OUT2) wave, WR = CS = 0V MAX5480B T = +25C 0.1 A ANALOG OUTPUTS D0D7 = V , WR = CS = 0V 120 DD OUT1 Capacitance (Note 3) C pF OUT1 D0D7 = 0V, WR = CS = 0V 30 30 D0D7 = V , WR = CS = 0V DD OUT2 Capacitance (Note 3) C pF OUT2 D0D7 = 0V, WR = CS = 0V 120 2 MAX5480