MAX5853 19-3196 Rev 0 2/04 Dual, 10-Bit, 80Msps, Current-Output DAC General Description Features The MAX5853 dual, 10-bit, 80Msps digital-to-analog 10-Bit, 80Msps Dual DAC converter (DAC) provides superior dynamic performance Low Power in wideband communication systems. The device inte- 77mW with I = 5mA at f = 80MHz FS CLK grates two 10-bit DAC cores, and a 1.24V reference. The converter supports single-ended and differential modes 2.7V to 3.6V Single Supply of operation. The MAX5853 dynamic performance is Full Output Swing and Dynamic Performance at maintained over the entire 2.7V to 3.6V power-supply 2.7V Supply operating range. The analog outputs support a -1.0V to +1.25V compliance voltage. Superior Dynamic Performance 78dBc SFDR at f = 20MHz The MAX5853 can also operate in interleave data mode OUT to reduce the I/O pin count. This allows the converter to Programmable Channel Gain Matching be updated on a single, 10-bit bus. Integrated 1.24V Low-Noise Bandgap Reference The MAX5853 features digital control of channel gain Single-Resistor Gain Control matching to within 0.4dB in sixteen 0.05dB steps. Channel matching improves sideband suppression in Interleaved Data Mode analog quadrature modulation applications. The on- Single-Ended and Differential Clock Input Modes chip 1.24V bandgap reference includes a control amplifier that allows external full-scale adjustments of Miniature 40-Pin Thin QFN Package, 6mm x 6mm both channels through a single resistor. The internal ref- EV Kit AvailableMAX5854 EV Kit erence can be disabled and an external reference may be applied for high-accuracy applications. Ordering Information The MAX5853 features full-scale current outputs of 2mA to 20mA and operates from a 2.7V to 3.6V single supply. PART TEMP RANGE PIN-PACKAGE The DAC supports three modes of power-control opera- MAX5853ETL -40C to +85C 40 Thin QFN-EP* tion: normal, low-power standby, and complete power- down. In power-down mode, the operating current is *EP = Exposed paddle. reduced to 1A. The MAX5853 is packaged in a 40-pin thin QFN with Pin Configuration exposed paddle (EP) and is specified for the extended (-40C to +85C) temperature range. TOP VIEW Pin-compatible, higher speed, and lower resolution versions are also available. Refer to the MAX5854 (10-bit, 165Msps), the MAX5852** (8-bit, 165Msps), and 40 39 38 37 36 35 34 33 32 31 the MAX5851** (8-bit, 80Msps) data sheets for more information. See Table 4 at the end of the data sheet. DA9/PD 1 30 CV DD EP DA8/DACEN 2 29 CGND Applications 3 28 DA7/IDE CLK Communications DA6/REN 4 27 CV DD SatCom, LMDS, MMDS, HFC, DSL, WLAN, DA5/G3 5 26 CLKXN MAX5853 Point-to-Point Microwave Links DA4/G2 6 25 CLKXP Wireless Base Stations 24 DA3/G1 7 DCE DA2/G0 8 23 CW Quadrature Modulation DA1 9 22 DB0 Direct Digital Synthesis (DDS) DA0 10 21 DB1 Instrumentation/ATE 11 12 13 14 15 16 17 18 19 20 THIN QFN **Future productcontact factory for availability. Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com. EVALUATION KIT AVAILABLE DB9 AGND DB8 AV DD DB7 OUTPA DB6 OUTNA DB5 AGND DV OUTPB DD DGND OUTNB DB4 AV DD DB3 REFR DB2 REFODual, 10-Bit, 80Msps, Current-Output DAC ABSOLUTE MAXIMUM RATINGS AV to AGND .........................................................-0.3V to +4V OUTPA, OUTNA to AGND..........(AV - 4.8V) to (AV + 0.3V) DD DD DD DV to DGND.........................................................-0.3V to +4V OUTPB, OUTNB to AGND..........(AV - 4.8V) to (AV + 0.3V) DD DD DD CV to CGND.........................................................-0.3V to +4V Maximum Current into Any Pin DD AV to DV .............................................................-4V to +4V (excluding power supplies)..........................................50mA DD DD AGND to DGND.....................................................-0.3V to +0.3V Continuous Power Dissipation (T = +70C) A AGND to CGND.....................................................-0.3V to +0.3V 40-Pin Thin QFN (derate 26.3mW/C above +70C)....2105mW DGND to CGND ....................................................-0.3V to +0.3V Operating Temperature Range ...........................-40C to +85C DA9DA0, DB9DB0, CW, DCE to DGND ...............-0.3V to +4V Storage Temperature Range .............................-65C to +150C CLK to CGND ..........................................-0.3V to (CV + 0.3V) Junction Temperature......................................................+150C DD CLKXN, CLKXP to CGND.........................................-0.3V to +4V Lead Temperature (soldering, 10s) .................................+300C REFR, REFO to AGND .............................-0.3V to (AV + 0.3V) DD 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 (AV = DV = CV = 3V, AGND = DGND = CGND = 0, f = 80Msps, differential clock, external reference, V = 1.2V, I = DD DD DD DAC REF FS 20mA, differential output, output amplitude = 0dBFS, T = T to T , unless otherwise noted. T +25C, guaranteed by produc- A MIN MAX A tion test. T < +25C guaranteed by design and characterization. Typical values are at T = +25C.) A A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS STATIC PERFORMANCE Resolution N 10 Bits Integral Nonlinearity INL R = 0 -1.0 0.25 +1.0 LSB L Differential Nonlinearity DNL Guaranteed monotonic, R = 0 -0.5 0.2 +0.5 LSB L Offset Error V -0.5 0.1 +0.5 LSB OS Internal reference (Note1) -11.0 1.5 +6.8 Gain Error (See Also Gain Error GE %FSR Definition Section) External reference -6.25 0.7 +4.10 Internal reference 150 Gain-Error Temperature Drift ppm/C External reference 100 DYNAMIC PERFORMANCE f = 10MHz 69.5 78 OUT f = 80MHz, CLK f = 20MHz 78 OUT A = -1dBFS OUT f = 30MHz 72 OUT Spurious-Free Dynamic Range to SFDR dBc f = 44MHz, CLK Nyquist f = 10MHz 78 OUT A = -1dBFS OUT f = 25MHz, CLK f = 1MHz 79 OUT A = -1dBFS OUT f = 80MHz, f = 10MHz, CLK OUT 85 A = -1dBFS, span = 10MHz OUT Spurious-Free Dynamic Range f = 65MHz, f = 5MHz, CLK OUT SFDR 82 dBc Within a Window A = -1dBFS, span = 2.5MHz OUT f = 25MHz, f = 1MHz, CLK OUT 82 A = -1dBFS, span = 2MHz OUT 8 tones at 400kHz spacing, f = 78MHz, CLK Multitone Power Ratio to Nyquist MTPR 74 dBc f = 15MHz to 18.2MHz OUT 2 MAX5853