MAX531/MAX538/MAX539 19-0172 Rev 6 2/97 +5V, Low-Power, Voltage-Output, Serial 12-Bit DACs General Description Features The MAX531/MAX538/MAX539 are low-power, voltage- Operate from Single +5V Supply output, 12-bit digital-to-analog converters (DACs) speci- Buffered Voltage Output fied for single +5V power-supply operation. The MAX531 can also be operated with 5V supplies. The Internal 2.048V Reference (MAX531) MAX538/MAX539 draw only 140A, and the MAX531 140A Supply Current (MAX538/MAX539) (with internal reference) draws only 260A. The MAX538/MAX539 come in 8-pin DIP and SO packages, INL = 1/2LSB (max) while the MAX531 comes in 14-pin DIP and SO pack- ages. All parts have been trimmed for offset voltage, Guaranteed Monotonic over Temperature gain, and linearity, so no further adjustment is necessary. Flexible Output Ranges: The MAX538s buffer is fixed at a gain of +1 and the 0V to V (MAX531/MAX539) DD MAX539s buffer at a gain of +2. The MAX531s internal V to V (MAX531) SS DD op amp may be configured for a gain of +1 or +2, as 0V to 2.6V (MAX531/MAX538) well as for unipolar or bipolar output voltages. The MAX531 can also be used as a four-quadrant multiplier 8-Pin SO/DIP (MAX538/MAX539) without external resistors or op amps. Power-On Reset For parallel data inputs, see the MAX530 data sheet. Serial Data Output for Daisy-Chaining Applications Ordering Information Battery-Powered Test Instruments ERROR PART TEMP. RANGE PIN-PACKAGE Digital Offset and Gain Adjustment (LSB) Battery-Operated/Remote Industrial Controls MAX531ACPD 0C to +70C 14 Plastic DIP 1/2 MAX531BCPD 0C to +70C 14 Plastic DIP 1 Machine and Motion Control Devices MAX531ACSD 0C to +70C 14 SO 1/2 Cellular Telephones MAX531BCSD 0C to +70C 14 SO 1 MAX531BC/D 0C to +70C Dice* 1 Functional Diagram Ordering Information continued at end of data sheet. *Dice are specified at T = +25C only. A (MAX531 ONLY) (MAX531 ONLY) REFIN REFOUT BIPOFF Pin Configurations MAX531 RFB 2.048V MAX538 REFERENCE (MAX531 TOP VIEW (MAX531 ONLY) MAX539 ONLY) VOUT DAC AGND V DD DIN V 1 8 DD POWER-UP DGND RESET SCLK 2 7 VOUT CLR (MAX531 DAC REGISTER MAX538 (MAX531 ONLY) CS 3 (12 BITS) REFIN 6 MAX539 ONLY) V SS CONTROL DOUT 4 (MAX531 5 AGND CS LOGIC ONLY) SHIFT REGISTER SCLK 4 DOUT DIP/SO (12 BITS) BITS DIN (LSB) (MSB) Pin Configurations continued at end of data sheet. Maxim Integrated Products 1 For free samples & the latest literature: +5V, Low-Power, Voltage-Output Serial 12-Bit DACs ABSOLUTE MAXIMUM RATINGS V to DGND and V to AGND ................................-0.3V, +6V Continuous Power Dissipation (T = +70C) DD DD A V to DGND and V to AGND .................................-6V, +0.3V 8-Pin Plastic DIP (derate 9.09mW/C above +70C)....727mW SS SS V to V .................................................................-0.3V, +12V 8-Pin SO (derate 5.88mW/C above +70C) ................471mW DD SS AGND to DGND........................................................-0.3V, +0.3V 14-Pin Plastic DIP (derate 10.00mW/C above +70C)...800mW Digital Input Voltage to DGND ......................-0.3V, (V + 0.3V) 14-Pin SO (derate 8.33mW/C above +70C) ..............667mW DD REFIN ..................................................(V - 0.3V), (V + 0.3V) Operating Temperature Ranges SS DD REFOUT to AGND .........................................-0.3V, (V + 0.3V) MAX53 C .....................................................0C to +70C DD RFB .....................................................(V - 0.3V), (V + 0.3V) MAX53 E ..................................................-40C to +85C SS DD BIPOFF................................................(V - 0.3V), (V + 0.3V) Storage Temperature Range .............................-65C to +165C SS DD V (Note 1) ................................................................V , V Lead Temperature (soldering, 10sec) .............................+300C OUT SS DD Continuous Current, Any Pin................................-20mA, +20mA Note 1: The output may be shorted to V , V , or AGND if the package power dissipation limit is not exceeded. DD SS 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 CHARACTERISTICSSingle +5V Supply (V = +5V 10%, V = 0V, AGND = DGND = 0V, REFIN = 2.048V (external), RFB = BIPOFF = VOUT (MAX531), C = 33F DD SS REFOUT (MAX531), R = 10k, C = 100pF, T = T to T , unless otherwise noted.) L L A MIN MAX PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS STATIC PERFORMANCE Resolution N 12 Bits MAX53 AC/E 0.5 Relative Accuracy (Note 2) INL LSB MAX53 BC/E 1 Differential Nonlinearity DNL Guaranteed monotonic 1 LSB Unipolar Offset Error V MAX53 C/E 08 LSB OS Unipolar Offset Tempco TCV 3 ppm/C OS Gain Error (Note 2) GE MAX53 C/E 1 LSB Gain-Error Tempco 1 ppm/C Power-Supply Rejection Ratio PSRR 4.5V V 5.5V 0.4 1 LSB/V DD (Note 3) VOLTAGE OUTPUT (VOUT) MAX531 (G = +1), MAX538 0V - 2 DD Output Voltage Range V MAX531 (G = +2), MAX539 0V - 0.4 DD Output Load Regulation VOUT = 2V, R = 2k 1 LSB L Short-Circuit Current I 12 mA SC REFERENCE INPUT (REFIN) Voltage Range 0V - 2 V DD Input Resistance Code dependent, minimum at code 555 hex 40 k Input Capacitance Code dependent (Note 4) 10 50 pF AC Feedthrough REFIN = 1kHz, 2Vp-p -80 dB 2 MAX531/MAX538/MAX539