MAX5442 MAXIM [Maxim Integrated Products], MAX5442 Datasheet
MAX5442
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MAX5442 Summary of contents
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... Unbuffered DAC outputs result in a low supply current of 120µA and a low offset error of 2LSB. The DAC output ranges from operation, matched scaling resistors are provided in the MAX5442/MAX5444 for use with an external preci- sion op amp (such as the MAX400), generating a ±V output swing. ...
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... Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS (V = +3V (MAX5443/MAX5444) or +5V (MAX5441/MAX5442 unless otherwise noted. Typical values are at T PARAMETER SYMBOL STATIC PERFORMANCE— ...
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... ELECTRICAL CHARACTERISTICS (continued +3V (MAX5443/MAX5444) or +5V (MAX5441/MAX5442 unless otherwise noted. Typical values are at T PARAMETER SYMBOL DYNAMIC PERFORMANCE—REFERENCE SECTION Reference -3dB Bandwidth BW Reference Feedthrough Signal-to-Noise Ratio SNR Reference Input Capacitance C INREF STATIC PERFORMANCE—DIGITAL INPUTS Input High Voltage ...
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... Serial-Input, Voltage-Output, 16-Bit DACs __________________________________________Typical Operating Characteristics (V = +3V (MAX5443/MAX5444) or +5V (MAX5441/MAX5442 wise noted. Typical values are +25°C.) A SUPPLY CURRENT vs. TEMPERATURE 0.150 0.125 V = +5V DD 0.100 V = +3V DD 0.075 0.050 0.025 0 -40 - TEMPERATURE (°C) ZERO-CODE OFFSET ERROR vs. TEMPERATURE 0.4 0.3 0.2 0.1 0 -0.1 -0.2 ...
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... V DD wise noted. Typical values are +25°C.) A REFERENCE CURRENT vs. DIGITAL INPUT CODE 140 120 100 10000 20000 30000 40000 50000 60000 70000 CODE MAJOR-CARRY GLITCH (RISING) CS 1V/div A OUT 20mV/div 200ns/div DIGITAL FEEDTHROUGH C = 112pF ...
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... Clear Input. Logic low asynchronously clears the DAC to code 0 (MAX5441/MAX5443) or code 32768 (MAX5442/MAX5444). DAC Output Voltage Junction of Internal Scaling Resistors. Connect to external op amp’s inverting input in bipolar mode. Feedback Resistor. Connect to external op amp’s output in bipolar mode. Supply Voltage. Use +3V for MAX5443/MAX5444 and +5V for MAX5441/MAX5442. Ground t CL D14 D0 ...
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... DD R INV DIN SCLK MAX5442 MAX5444 CLR GND The MAX5441–MAX5444 are composed of two matched DAC sections, with a 12-bit inverted R-2R DAC forming the 12 LSBs and the four MSBs derived from 15 identically matched resistors. This architecture allows the lowest glitch energy to be transferred to the DAC output on major-carry transitions ...
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... Clearing the DAC A 20ns (min) logic-low pulse on CLR asynchronously clears the DAC buffer to code 0 in the MAX5441/ MAX5443 and to code 32768 in the MAX5442/ MAX5444. External Reference The MAX5441–MAX5444 operate with external voltage references from ...
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... DAC is used in the unipolar or bipo- lar mode of operation. In unipolar mode, the output amplifier is used in a voltage-follower connection. In bipolar mode (MAX5442/MAX5444 only), the amplifier operates with the internal scaling resistors (Figure 2b). In each mode, the DAC’s output resistance is constant and is independent of input code ...
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... RFB and INV to REF. This allows the DAC to power-up to mid- scale. Bipolar Configuration Figure 2b shows the MAX5442/MAX5444 configured for bipolar operation with an external op amp. The op amp is set for unity gain with an offset of -1/2V lists the offset binary codes for this circuit. ...
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... SCLK DIN CLR Ordering Information (continued) PIN-PACKAGE 8 µMAX 8 µMAX 8 µMAX 8 µMAX 10 µMAX 10 µMAX 10 µMAX 10 µMAX Functional Diagrams V DD MAX5442 MAX5444 16-BIT DAC 16-BIT DATA LATCH CONTROL LOGIC SERIAL INPUT REGISTER GND INL (LSB) SUPPLY (V) ±2 ±2 ±4 ±4 ±2 ±2 ±4 ± ...
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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 ...