MAX5180 Maxim, MAX5180 Datasheet
MAX5180
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MAX5180 Summary of contents
Page 1
... An on-board +1.2V bandgap circuit provides a well-regulated, low-noise reference that can be dis- abled for external reference operation. The MAX5180/MAX5183 are designed to provide a high level of signal integrity for the least amount of power dis- sipation. Both DACs operate from a single supply of +2.7V to +3.3V. Additionally, these DACs have three ...
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... CLK f = 2.2MHz OUT f = 550kHz OUT f = 40MHz CLK f = 2.2MHz OUT f = 2.2MHz OUT All 0s to all 2.2MHz OUT f = 2.2MHz OUT DACEN = 0, MAX5180 only MAX5180 only MAX5180 only = +70° 5pF MIN MAX MIN TYP MAX UNITS 10 Bits -2 ±0.5 +2 LSB -1 ± ...
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Dual, 10-Bit, 40MHz, Current/Voltage ELECTRICAL CHARACTERISTICS (continued) ( +3V ±10%, AGND = DGND = unless otherwise noted. Typical values are at T PARAMETER SYMBOL REFERENCE Output Voltage Range V Output Voltage Temperature TCV ...
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... TEMPERATURE (°C) = +25°C, unless otherwise noted.) A ANALOG SUPPLY CURRENT vs. SUPPLY VOLTAGE 2.55 2.53 MAX5183 MAX5180 2.51 2.49 2.47 2.45 2.5 3.0 3.5 4.0 4.5 5.0 5.5 SUPPLY VOLTAGE (V) DIGITAL SUPPLY CURRENT vs. TEMPERATURE 5 MAX5183 4 3 MAX5180 -40 - TEMPERATURE (°C) SHUTDOWN CURRENT vs. SUPPLY VOLTAGE 0.80 0.75 0.70 MAX5183 0.65 MAX5180 0.60 0.55 0.50 0.45 4.0 2.5 3.0 3.5 4.5 5.0 5.5 SUPPLY VOLTAGE (V) ...
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... FREQUENCY (MHz) _______________________________________________________________________________________ Simultaneous-Output DACs Typical Operating Characteristics (continued) = 1mA INTERNAL REFERENCE VOLTAGE vs. TEMPERATURE 1.28 1.27 1.26 MAX5183 1.25 MAX5180 1.24 1.23 5.5 -40 - TEMPERATURE (°C) DYNAMIC RESPONSE FALL TIME OUT_P 150mV/ div OUT_N 150mV/ div 50ns/div FFT PLOT, DAC2 0 ...
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Dual, 10-Bit, 40MHz, Current/Voltage Simultaneous-Output DACs ( +3V, AGND = DGND = 0, 400Ω differential output SPURIOUS-FREE DYNAMIC RANGE vs. OUTPUT FREQUENCY AND CLOCK FREQUENCY, DAC1 60MHz CLK f = ...
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... REFO Reference Output 26 OUT2N Negative Analog Output, DAC2. Current output for MAX5180; voltage output for MAX5183. 27 OUT2P Positive Analog Output, DAC2. Current output for MAX5180; voltage output for MAX5183. 28 CREF2 Reference Bias Bypass, DAC2 _______________________________________________________________________________________ Simultaneous-Output DACs FUNCTION (X = don’t care) ...
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... REFO/ SET R is the reference resistor that determines the SET amplifier’s output current on the MAX5180 (Figure 2). This current is mirrored into the current-source array where it is equally distributed between matched current segments and summed to valid output current readings for the DACs. ...
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... Internal +1.2V Reference and the Control Amplifier EXTERNAL +1.2V REFERENCE MAX6520 AGND AGND *9.6kΩ REFERENCE CURRENT-SET RESISTOR INTERNAL TO MAX5183 ONLY. USE EXTERNAL R FOR MAX5180. SET Figure 3. MAX5180/MAX5183 with External Reference _______________________________________________________________________________________ Simultaneous-Output DACs REN +1.2V BANDGAP REFERENCE REFO C * COMP I REF REFR R ...
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... Standby Mode Both DAC cells in the MAX5180/MAX5183 write to their outputs simultaneously (Figure 4). The input latch of the first DAC (DAC1) is loaded after the clock signal transi- tions high ...
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... Dual, 10-Bit, 40MHz, Current/Voltage The MAX5180 outputs are designed to supply full-scale output currents of 1mA into 400Ω loads in parallel with a capacitive load of 5pF. The MAX5183 features inte- grated 400Ω resistors that restore the array currents to proportional, differential voltages of 400mV. These dif- ...
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... High-speed signals should be run on controlled impedance lines directly above the ground plane. Since the MAX5180/ MAX5183 have separate analog and digital ground buses (AGND and DGND, respectively), the PC board should also have separate analog and digital ground sections with only one point connecting the two ...
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... MAX5183 OUT1N 402Ω 400Ω* OUT2P 400Ω* OUT2N 402Ω 400Ω* REN AGND *400Ω RESISTORS INTERNAL TO MAX5183 ONLY. **MAX5180 ONLY TRANSISTOR COUNT: 9464 SUBSTRATE CONNECTED TO AGND 402Ω +5V 402Ω OUTPUT1 MAX4108 -5V 402Ω 402Ω +5V 402Ω ...
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... Dual, 10-Bit, 40MHz, Current/Voltage Simultaneous-Output DACs +3V DIGITAL SIGNAL PROCESSOR Figure 7. Using the MAX5180/MAX5183 for I/Q Signal Reconstruction 14 ______________________________________________________________________________________ +3V I COMPONENT BP DAC1 FILTER CARRIER MAX5180 FREQUENCY MAX5183 Q COMPONENT BP DAC2 FILTER +3V IF 0° Σ 90° MAX2452 QUADRATURE MODULATOR ...
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Dual, 10-Bit, 40MHz, Current/Voltage Simultaneous-Output DACs ______________________________________________________________________________________ Package Information 15 ...
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... Dual, 10-Bit, 40MHz, Current/Voltage Simultaneous-Output DACs Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 16 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © ...