MAX5156/MAX5157 19-1317 Rev 1 12/97 Low-Power, Dual, 12-Bit Voltage-Output DACs with Configurable Outputs General Description Features The MAX5156/MAX5157 low-power, serial, voltage-out- 12-Bit Dual DAC with Configurable Output put, dual 12-bit digital-to-analog converters (DACs) Amplifier consume only 500A from a single +5V (MAX5156) or Single-Supply Operation: +5V (MAX5156) +3V (MAX5157) supply. These devices feature Rail-to- +3V (MAX5157) Rail output swing and are available in space-saving 16-pin QSOP and DIP packages. Access to the invert- Rail-to-Rail Output Swing ing input allows for specific gain configurations, remote Low Quiescent Current: 500A (normal operation) sensing, and high output current capability, making 2A (shutdown mode) these devices ideally suited for industrial process con- Power-On Reset Clears DAC Outputs to Zero trols. These devices are also well suited for digitally programmable (420mA) current loops. SPI/QSPI and Microwire Compatible The 3-wire serial interface is SPI/QSPI and Space-Saving 16-Pin QSOP Package Microwire compatible. Each DAC has a double- buffered input organized as an input register followed by a DAC register, which allows the input and DAC reg- isters to be updated independently or simultaneously. Ordering Information Additional features include a programmable shutdown (2A), hardware-shutdown lockout, a separate voltage INL PART TEMP. RANGE PIN-PACKAGE reference for each DAC, power-on reset, and an active- (LSB) low clear input (CL) that resets all registers and DACs to MAX5156ACPE 0C to +70C 16 Plastic DIP 1/2 zero. The MAX5156/MAX5157 provide a programmable MAX5156BCPE 0C to +70C 16 Plastic DIP 1 logic output pin for added functionality, and a serial- MAX5156ACEE 0C to +70C 16 QSOP 1/2 data output pin for daisy chaining. MAX5156BCEE 0C to +70C 16 QSOP 1 Applications Ordering Information continued at end of data sheet. Industrial Process Control Motion Control Digital Offset and Gain Digitally Programmable Adjustment 420mA Current Loops Pin Configuration appears at end of data sheet. Remote Industrial Controls Automatic Test Equipment Functional Diagram V DOUT CL PDL DGND DD REFA AGND INPUT DAC OUTA DAC A DECODE REG A REG A CONTROL FBA 16-BIT MAX5156 SHIFT MAX5157 REGISTER INPUT DAC OUTB DAC B REG B REG B LOGIC OUTPUT FBB SR CONTROL CS DIN SCLK UPO REFB Rail-to-Rail is a registered trademark of Nippon Motorola Ltd. SPI and QSPI are trademarks of Motorola, Inc. Microwire is a trademark of National Semiconductor Corp. Maxim Integrated Products 1 For free samples & the latest literature: Low-Power, Dual, 12-Bit Voltage-Output DACs with Configurable Outputs ABSOLUTE MAXIMUM RATINGS V to AGND............................................................-0.3V to +6V Continuous Power Dissipation (T = +70C) DD A V to DGND ...........................................................-0.3V to +6V Plastic DIP (derate 10.5mW/C above +70C) .............593mW DD AGND to DGND..................................................................0.3V QSOP (derate 8.30mW/C above +70C).....................667mW FBA, FBB to AGND.....................................-0.3V to (V + 0.3V) CERDIP (derate 10.00mW/C above +70C)................800mW DD REF , OUT to AGND.................................-0.3V to (V + 0.3V) Operating Temperature Ranges DD Digital Inputs (SCLK, DIN, CS, CL, PDL) MAX5152 C E/MAX5153 C E ...........................0C to +70C to DGND................................................................-0.3V to +6V MAX5152 E E/MAX5153 E E..........................-40C to +85C Digital Outputs (DOUT, UPO) to DGND.....-0.3V to (V + 0.3V) MAX5152 MJE/MAX5153 MJE ......................-55C to +125C DD Maximum Current into Any Pin .........................................20mA Storage Temperature Range .............................-65C to +160C 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 CHARACTERISTICSMAX5156 (V = +5V 10%, V = V = 2.5V, R = 10k, C = 100pF, T = T to T , unless otherwise noted. Typical values are at DD REFA REFB L L A MIN MAX T = +25C, output buffer connected in unity-gain configuration (Figure 9).) A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS STATIC PERFORMANCE Resolution N 12 Bits MAX5156A 1/2 Integral Nonlinearity INL (Note 1) LSB MAX5156B 1 Differential Nonlinearity DNL Guaranteed monotonic 1 LSB Offset Error V Code = 10 6 mV OS Offset Tempco TCV Normalized to 2.5V 3 ppm/C OS Gain Error -0.5 3 LSB Gain-Error Tempco Normalized to 2.5V 3 ppm/C V Power-Supply Rejection Ratio PSRR 4.5V V 5.5V 20 200 V/V DD DD REFERENCE INPUT Reference Input Range REF 0 V - 1.4 V DD Reference Input Resistance R Minimum with code 1554 hex 14 20 k REF MULTIPLYING-MODE PERFORMANCE Input code = 1FFE hex, Reference 3dB Bandwidth 600 kHz V = 0.67Vp-p at 2.5V REF DC Input code = 0000 hex, Reference Feedthrough -85 dB V = (V - 1.4Vp-p) at 1kHz REF DD Signal-to-Noise plus Input code = 1FFE hex, SINAD 82 dB V = 1Vp-p at 2.5V , f = 25kHz Distortion Ratio REF DC DIGITAL INPUTS Input High Voltage V CL, PDL, CS, DIN, SCLK 3 V IH Input Low Voltage V CL, PDL, CS, DIN, SCLK 0.8 V IL Input Hysteresis V 200 mV HYS Input Leakage Current I V = 0V to V 0.001 1 A IN IN DD Input Capacitance C 8 pF IN 2 MAX5156/MAX5157