MAX132CWG Maxim Integrated Products, MAX132CWG Datasheet
MAX132CWG
Specifications of MAX132CWG
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MAX132CWG Summary of contents
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... Serial I/O Interface with Programmed Output for Mux and PGA Performs up to 100 Conv/sec ±2pA Input Current 50Hz/60Hz Rejection ______________Ordering Information PART MAX132CNG MAX132CWG MAX132C/D MAX132ENG MAX132EWG MAX132MRG * Contact factory for dice specifications. ** Contact factory for availability and processing to MIL-STD-883. __________________Pin Configuration ...
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ADC with Serial Interface ABSOLUTE MAXIMUM RATINGS Supply Voltage V+ to DGND ..............................................-0.3V < V+ < +6. DGND ................................................+0.3V < V- < -9. ............................................................................+15V Analog Input Voltage (any input)..................................... Digital Input Voltage ...
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ELECTRICAL CHARACTERISTICS (continued) ( -5V, DGND = AGND = REF- = 0V, REF+ = 545mV 32,768Hz, 60Hz mode CLK A MIN PARAMETER SYMBOL DIGITAL SECTION Output High ...
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ADC with Serial Interface __________________________________________Typical Operating Characteristics ERROR vs. COMMON-MODE INPUT VOLTAGE (V LO–AGND -0.05 -0.10 -0.15 -0.20 -0.25 -0. COMMON-MODE VOLTAGE (V) ...
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Description (continued) PIN NAME 9 P2 User-programmable output bit 2—programmed through the serial port User-programmable output bit 3—programmed through the serial port. 11 EOC End of Conversion Output goes high at end of conversion. 12 DGND Digital ...
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ADC with Serial Interface ____________Functional Description The MAX132 integrates the input voltage for a fixed period of time, then deintegrates a known reference voltage and measures the time required to reach zero. Good line rejection is achieved by setting ...
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The pseudo- differential input voltage is applied across pins 14 and 15 (IN HI, IN LO), and can range to within 2V of either supply rail. ...
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ADC with Serial Interface Differential Reference Inputs and Rollover Error The main source of rollover voltage error is due to common-mode voltages. This error is caused by the reference capacitor losing or gaining charge to stray capacitance. A positive ...
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Table 1. Crystal Frequencies and Integrator Capacitors for 50Hz to 60Hz Operation Crystal C /60Hz INT Conv/sec Freq. (pF) (Hz) 16 32,768 4700 32 65,536 2700 48 98, 304 1800 64 131,072 1200 80 163,840 1000 96 196,608 820 Note: ...
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ADC with Serial Interface ___________________Digital Interface Serial data at DIN is sent in 8-bit packets and is shifted into the internal 8-bit shift register with each rising edge of SCLK. The data is then latched into either command input ...
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Averaging read-zero measurements provides the most accurate read-zero value. Perform a read-zero sequence whenever a large change in the input voltage is expected. When the sleep bit is set to 1, (bit D5 in command input register ...
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ADC with Serial Interface Table 4. Overrange Values for Resolution Used Bits Resolution Soft Overrange Used Bits Start Value B18–B3 ±15 34,880 B18–B2 ±16 69,760 B18–B1 ±17 139,520 B18–B0 ±18 279,040 Table 5. Output Values for 16-Bit Resolution (Offset ...
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To deter- mine collision status, read the status register collision bit before and after reading output registers 0 and 1. Collisions will not occur if a conversion’s read cycle is completed ...
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ADC with Serial Interface Second Deintegrate Phase The second deintegrate phase deintegrates residual voltage on the integration capacitor that has been through the X8 phase. Since the voltage across the integration capacitor has been multiplied by 8, each deintegration ...
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The cur- rent source delivers 2mA, resulting in about 500mV across the 250Ω resistor—suitable to fit the MAX132’s ±512mV full-scale range. Note that the accuracy of the reference resistor (0.1%) sets the ...
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ADC with Serial Interface WAIT UNTIL EOC PIN IS HIGH CLEAR SCLK CLEAR CS WRITE DIN132 FROM TxByte’s MSB SET SCLK READ DOUT132 INTO RxByte’s LSB CLEAR SCLK SHIFT RxByte LEFT SHIFT TxByte LEFT REPEAT 8 TIMES SET CS ...