MAX5182/MAX5185 19-1578 Rev 3 12/01 Dual, 10-Bit, 40MHz Current/Voltage Alternate-Phase Output DACs General Description Features The MAX5182 is a dual, 10-bit, alternate-phase-update, +2.7V to +3.3V Single-Supply Operation current-output digital-to-analog converter (DAC) Wide Spurious-Free Dynamic Range: 70dB at designed for superior performance in systems requiring f = 2.2MHz analog signal reconstruction with low distortion and OUT low-power operation. The MAX5185 provides equal Fully-Differential Outputs for Each DAC specifications with on-chip output resistors for voltage- 0.5% FSR Gain Mismatch Between DAC Outputs output operation. Both devices are designed for 10pV-s glitch operation, to reduce distortion and minimize Low-Current Standby or Full-Shutdown Modes unwanted spurious signal components at the output. An Internal +1.2V Low-Noise Bandgap Reference on-board +1.2V bandgap circuit provides a well-regu- lated, low-noise reference that can be disabled for Small 28-Pin QSOP Package external reference operation. The MAX5182/MAX5185 are designed to provide a high level of signal integrity for the least amount of power dis- sipation. Both DACs operate from a +2.7V to +3.3V sin- gle supply. Additionally, these DACs have three modes of operation: normal, low-power standby, and complete Ordering Information shutdown. A full shutdown provides the lowest possible power dissipation with a maximum shutdown current of PART TEMP. RANGE PIN-PACKAGE 1A. Fast wake-up time (0.5s) from standby mode to MAX5182BEEI -40C to +85C 28 QSOP full DAC operation allows for power conservation by MAX5185BEEI -40C to +85C 28 QSOP activating the DACs only when required. The MAX5182/MAX5185 are available in a 28-pin QSOP package and are specified for the extended (-40C to +85C) temperature range. For pin-compatible 8-bit versions, refer to the MAX5188/MAX5191 data sheet. Pin Configuration Applications TOP VIEW Signal Reconstruction CREF1 1 28 CREF2 Digital Signal Processing OUT1P 2 27 OUT2P Arbitrary Waveform Generators (AWGs) OUT1N 3 26 OUT2N Imaging Applications AGND 4 25 REFO AV 5 24 REFR DD MAX5182 DACEN 6 23 DGND MAX5185 PD 7 22 DV DD CS 8 21 D9 CLK 9 20 D8 N.C. 10 19 D7 REN 11 18 D6 D0 12 17 D5 D1 13 16 D4 D2 14 15 D3 QSOP 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.Dual, 10-Bit, 40MHz Current/Voltage Alternate-Phase Output DACs ABSOLUTE MAXIMUM RATINGS AV , DV to AGND, DGND .................................-0.3V to +6V Maximum Current into Any Pin............................................50mA DD DD Digital Inputs to DGND.............................................-0.3V to +6V Continuous Power Dissipation (T = +70C) A OUT1P, OUT1N, OUT2P, OUT2N, CREF1, 28-Pin QSOP (derate 9.00mW/C above +70C)....... 725mW CREF2 to AGND...................................................-0.3V to +6V Operating Temperature Ranges V to AGND ..........................................................-0.3V to +6V MAX518 BEEI................................................-40C to +85C REF AGND to DGND.....................................................-0.3V to +0.3V Storage Temperature Range .............................-65C to +150C AV to DV .................................................................... 3.3V Lead Temperature (soldering, 10s) ................................ +300C DD 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 = +3V 10%, AGND = DGND = 0, f = 40MHz, I = 1mA, 400 differential output, C = 5pF, T = T to T , DD DD CLK FS L A MIN MAX unless otherwise noted. Typical values are at T = +25C.) A dB PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS STATIC PERFORMANCE Resolution N 10 Bits Integral Nonlinearity INL -2 0.5 +2 LSB Differential Nonlinearity DNL Guaranteed monotonic -1 0.5 +1 LSB MAX5182 -2 +2 Zero-Scale Error LSB MAX5185 -8 +8 -40 15 +40 Full-Scale Error (Note 1) LSB DYNAMIC PERFORMANCE Output Settling Time To 0.5LSB error band 25 ns Glitch Impulse 10 pVs f = 550kHz 72 Spurious-Free Dynamic Range OUT SFDR f = 40MHz dBc CLK to Nyquist f = 2.2MHz, T = +25C 57 70 OUT A f = 550kHz -70 OUT Total Harmonic Distortion to THD f = 40MHz dB CLK Nyquist f = 2.2MHz, T = +25C -68 -63 OUT A f = 550kHz 61 Signal-to-Noise Ratio to OUT SNR f = 40MHz dB CLK Nyquist f = 2.2MHz, T = +25C 56 59 OUT A DAC-to-DAC Ouput Isolation f = 2.2MHz -60 dB OUT Clock and Data Feedthrough All 0s to all 1s 50 nVs Output Noise 10 pA/Hz Gain Mismatch Between 0.5 1 f = 2.2MHz, T = +25C % FSR OUT A DAC Outputs ANALOG OUTPUT Full-Scale Output Voltage V 400 mV FS Voltage Compliance of Output -0.3 0.8 V Output Leakage Current DACEN = 0, MAX5182 only -1 1 A Full-Scale Output Current I MAX5182 only 0.5 1 1.5 mA FS DAC External Output Resistor R MAX5182 only 400 L Load 2 MAX5182/MAX5185