max5235 Maxim Integrated Products, Inc., max5235 Datasheet
max5235
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max5235 Summary of contents
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... Single-Supply 3V/5V, Voltage-Output, Dual, General Description The MAX5234/MAX5235 precision, dual-output, 12-bit digital-to-analog converters (DACs) consume only 360µA from a single 5V (MAX5235) or 325µA from a single 3V (MAX5234) supply. These devices feature output buffers ® that swing Rail-to-Rail . The internal gain amplifiers maxi- mize the dynamic range of the DAC output ...
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... Operating Temperature Range ...........................-40°C to +85°C DD Storage Temperature Range .............................-65°C to +150°C Lead Temperature (soldering, 10s) .................................+300° +2.5V 5kΩ 100pF, T REFB L L CONDITIONS N MAX5235A (Note 1) MAX5235B (Note 1) (Note 2) OS Code = FFF hex +25°C (Note Normalized to 4.095V FS OS 4.5V ≤ V ≤ 5.5V DD (Note 4) ...
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... Single-Supply 3V/5V, Voltage-Output, Dual, ELECTRICAL CHARACTERISTICS—MAX5235 (continued +4.5V to +5.5V, GND = REFA values are +25°C.) A PARAMETER SYMBOL DIGITAL INPUT Input High Voltage Input Low Voltage Input Hysteresis Input Leakage Current Input Capacitance DYNAMIC PERFORMANCE Voltage-Output Slew Rate Voltage-Output Settling Time Output-Voltage Swing ...
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Single-Supply 3V/5V, Voltage-Output, Dual, Precision 12-Bit DACs ELECTRICAL CHARACTERISTICS—MAX5234 (V = +2.7V to +3.6V, GND = REFA Typical values are +25°C.) A PARAMETER SYMBOL STATIC PERFORMANCE Resolution Integral Nonlinearity INL Differential Nonlinearity DNL Offset ...
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... Settle After Exiting DAC Power- Down Digital Feedthrough Major Carry Glitch Energy POWER SUPPLIES Power-Supply Voltage Power-Supply Current Power-Supply Current in Power- I Down and Shutdown Modes TIMING CHARACTERISTICS—MAX5235 (FIGURES 1 AND +4.5V to +5.5V, GND = PARAMETER SYMBOL SCLK Clock Period SCLK Pulse Width High ...
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Single-Supply 3V/5V, Voltage-Output, Dual, Precision 12-Bit DACs TIMING CHARACTERISTICS—MAX5234 (FIGURES 1 AND +2.7V to +3.6V, GND = MIN PARAMETER SYMBOL SCLK Clock Period t SCLK Pulse Width High t SCLK Pulse ...
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... INTEGRAL NONLINEARITY vs. DIGITAL INPUT CODE (MAX5234) 0.5 0.4 0.3 0.2 0.1 0 -0.1 -0.2 -0.3 -0.4 -0.5 0 500 1000 1500 2000 2500 3000 3500 4000 DIGITAL INPUT CODE DIFFERENTIAL NONLINEARITY vs. DIGITAL INPUT CODE (MAX5235) 0.25 0.20 0.15 0.10 0.05 0 -0.05 -0.10 -0.15 -0.20 -0.25 0 500 1000 1500 2000 2500 3000 3500 4000 DIGITAL INPUT CODE MAX5234 SUPPLY CURRENT vs. SUPPLY VOLTAGE ...
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... NO LOAD 90 -40 - TEMPERATURE (°C) MAX5234 FULL-SCALE ERROR vs. RESISTIVE LOAD 2.00 1.75 1.50 1.25 1.00 0.75 0.50 0.25 0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 R (kΩ +2.5V (MAX5235), C REF REF MAX5235 FULL POWER-DOWN SUPPLY CURRENT vs. TEMPERATURE 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 NO LOAD 0 -40 - TEMPERATURE (°C) MAX5234 FULL-SCALE OUTPUT vs. TEMPERATURE 2.0455 2.0454 2.0453 2.0452 2.0451 2 ...
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... CROSSTALK MAX5234 toc23 OUTB 2V/div OUTA 1mV/div SHUTDOWN 2ms/div MAX5235 DIGITAL FEEDTHROUGH MAX5234 toc26 SCLK 5V/div OUT_ 1mV/div 40µs/div = +2.5V (MAX5235), C REF MAX5234 DYNAMIC RESPONSE FALL TIME MAX5234 toc21 CS 1V/div OUT_ 1V/div 2µs/div MAX5235 CROSSTALK MAX5234 toc24 OUTB 5V/div OUTA ...
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... The reference inputs accept both AC and DC values with a voltage range extending from 0.25V to 2.6V for the MAX5235 and 0.25V to 1.5V for the MAX5234. For proper operation do not exceed the input voltage range limits. Determine the output voltage using the fol- ...
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... DIN Figure 2. Detailed Serial Interface Timing The 3-wire serial interface (SPI, QSPI, and MICROWIRE compatible) used in the MAX5234/MAX5235 allows for complete control of DAC operations (Figures 4 and 5). Figures 1 and 2 show the timing for the serial interface. The serial word consists of 3 control bits followed by 12 data bits (MSB first) and 1 sub-bit as described in Tables 1, 2, and 3 ...
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... DAC itself. Figure 7 shows the MAX5234/MAX5235 configured for unipolar, rail-to-rail operation with a gain of 1.6384V/V. The MAX5235 produces 4.095V output with 2.5V reference while the MAX5234 produces a range Applications Information Definitions Integral Nonlinearity (INL) ...
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... P1B Don’t care must be zero for proper operation. 2.0475V output with a 1.25V reference. Table 4 lists the unipolar output codes. The MAX5234/MAX5235 can be configured for a bipo- lar output, as shown in Figure 8. The output voltage is given by the equation [((1 ...
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... Figure 4. SPI/QSPI Interface Connections 1 REF 2048 0V 1 REF 2048 MAX5234 MAX5235 2047 REF 2048 2048 = REF 2048 Figure 5. Connections for MICROWIRE ...
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Single-Supply 3V/5V, Voltage-Output, Dual STEP 3 011 (1/2LSB ) 2 AT STEP 1 001 (1/4LSB ) 0 000 001 010 011 100 101 DIGITAL INPUT CODE Figure 6a. Integral Nonlinearity ACTUAL 3 DIAGRAM 2 1 ...
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... DIN 1kΩ GND Figure 10. Digital Calibration Several MAX5234/MAX5235 may share one common DIN signal line (Figure 12). In this configuration, the data bus is common to all devices; data is not shifted through a daisy-chain. The SCLK and DIN lines are shared by all devices, but each IC needs its own dedi- cated CS line ...
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... CS MAX5234 MAX5235 SCLK DIN Figure 12. Multiple MAX5234/MAX5235 Sharing a Common DIN Line capacitor in parallel with a 0.1µF capacitor to GND. Minimize lead lengths to reduce lead inductance. Grounding and Layout Considerations Digital and AC transient signals on GND can create noise at the output. Connect GND to the highest quality ground available ...
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... Precision 12-Bit DACs LDAC DECODE CONTROL 16-BIT SHIFT REGISTER SR CONTROL CS DIN SCLK 18 ______________________________________________________________________________________ GND V REFA DD INPUT DAC DAC A REG A REG A MAX5234 MAX5235 INPUT DAC DAC B REG B REG B REFB Functional Diagram 121kΩ 77.25kΩ OUTA 1kΩ 121kΩ 77.25kΩ OUTB 1kΩ ...
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Single-Supply 3V/5V, Voltage-Output, Dual, 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 ...