MAX542 MAXIM [Maxim Integrated Products], MAX542 Datasheet
MAX542
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MAX542 Summary of contents
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... The DAC output range REF tion, matched scaling resistors are provided in the MAX542 for use with an external precision op amp (such as the MAX400), generating a ±V swing. The MAX542 also includes Kelvin-sense con- nections for the reference and analog ground pins to reduce layout sensitivity ...
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... SO (derate 8.33mW/°C above +70°C) ...............667mW + 0.3V) 14-Pin Ceramic SB (derate 10.00mW/°C above +70°C ..800mW DD Operating Temperature Ranges MAX541 _C_ A/MAX542_C_D. .............................0°C to +70°C DD MAX541 _E_ A/MAX542_E_D............................-40°C to +85°C MAX542CMJD .................................................-55°C to +125°C Storage Temperature Range .............................-65°C to +150°C Lead Temperature (soldering, 10s) .................................+300°C ...
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... Code = 0000 hex 1Vp-p at 100kHz REF Code = 0000 hex IN Code = FFFF hex (Note MIN CONDITIONS CH CL (Note MAX542 MAX542 (Note 6) MIN TYP MAX 120 2.4 0.8 ±1 10 0.40 4.75 5.25 0.3 1.1 1 unless otherwise noted.) MAX MIN TYP MAX 10 ...
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Serial-Input, Voltage-Output, 16-Bit DACs __________________________________________Typical Operating Characteristics ( +2.5V +25°C, unless otherwise noted.) DD REF A SUPPLY CURRENT vs. TEMPERATURE 0.50 0.45 0.40 0.35 0.30 0.25 0.20 -40 - ...
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Serial-Input, Voltage-Output, 16-Bit DACs (V = +5V +2.5V +25°C, unless otherwise noted.) DD REF A FULL-SCALE STEP RESPONSE (f = 10MHz) SCLK 2µs/div 1µs/div MAJOR-CARRY OUTPUT GLITCH 2µs/div MAX541 PIN NAME 1 OUT 2 AGND ...
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... CSSO CH SCLK D15 DIN LDAC* *MAX542 ONLY Figure 1. Timing Diagram 6 _______________________________________________________________________________________ FUNCTION Feedback Resistor. Connect to external op amp’s output in bipolar mode. DAC Output Voltage Analog Ground (force) Analog Ground (sense) Voltage Reference Input (sense). Connect REFS to external +2.5V reference. Voltage Reference Input (force). Connect REFF to external +2.5V reference. ...
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... R-2R ladder, allowing unbuffered operation in medium- load applications. The MAX542 provides matched bipolar offset resistors, which connect to an external op amp for bipolar output swings (Figure 2b). For optimum performance, the MAX542 also provides a set of Kelvin connections to the voltage-reference and analog-ground inputs. MAX495 OUT EXTERNAL OP AMP ...
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... CS goes high (Figure 3b). Hold LDAC high during the data-loading sequence. CS SCLK DIN D15 D14 D13 D12 D11 D10 D9 MSB Figure 3a. MAX541/MAX542 3-Wire Interface Timing Diagram ( LDAC = DGND for MAX542) CS SCLK DIN D15 D14 D13 D12 D11 D10 D9 D8 MSB LDAC Figure 3b. MAX542 4-Wire Interface Timing Diagram ...
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... AGND (MAX541), provides high-frequency bypassing. A surface-mount ceramic chip capacitor is preferred because it has the lowest inductance. An additional 10µF between REFF and AGNDF (MAX542), or REF and AGND (MAX541), provides low-frequency bypass- ing. A low-ESR tantalum, film, or organic semiconductor capacitor works well. Leaded capacitors are accept- able because impedance is not as critical at lower fre- quencies ...
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... SPI, QSPI, and MICROWIRE interfaces. The three digital inputs (CS, DIN, and SCLK) load the digital input data serially into the DAC. LDAC (MAX542) updates the DAC output asynchronously. All of the digital inputs include Schmitt-trigger buffers to accept slow-transition interfaces. This means that opto- couplers can interface directly to the MAX541/MAX542 without additional external logic ...
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... SO MAX542BC/D 0°C to +70°C Dice* MAX542AEPD -40°C to +85°C 14 Plastic DIP MAX542BEPD -40°C to +85°C 14 Plastic DIP MAX542CEPD -40°C to +85°C 14 Plastic DIP MAX542AESD -40°C to +85° MAX542BESD -40°C to +85° MAX542CESD -40°C to +85°C ...
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Serial-Input, Voltage-Output, 16-Bit DACs ________________________________________________________Package Information 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 ...