mx7828 Maxim Integrated Products, Inc., mx7828 Datasheet
mx7828
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mx7828 Summary of contents
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... The data outputs use latched, three-state buffer circuitry to allow direct connection to a microprocessor data bus or system input port. The MX7824 and MX7828 are pin compatible with Analog Devices’ AD7824 and AD7828. The MAX154 and MAX158, which feature internal references, are also compatible with these products ...
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... Input Low Current I INL Input Capacitance (Note _______________________________________________________________________________________ Operating Temperature Ranges + 0.3V MX7824, MX7828 DD KN/LN/KCW_/LCW_ ............................................0°C to +70°C BQ/CQ .............................................................-40°C to +85°C TQ/UQ............................................................-55°C to +125°C Storage Temperature Range .............................-65°C to +160°C Lead Temperature (soldering, 10sec) .............................+300° unless otherwise noted.) ...
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ELECTRICAL CHARACTERISTICS (V = +5V +5V GND, Mode REF REF PARAMETER SYMBOL LOGIC OUTPUTS Output High Voltage V OH Output Low Voltage V OL Three-State Output Current Output Capacitance (Note 4) ...
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CMOS, High-Speed, 8-Bit ADCs with Multiplexer __________________________________________Typical Operating Characteristics (T = +25°C, unless otherwise noted.) A REFERENCE TEMPERATURE DRIFT (MAX154/MAX158 ONLY) 2.520 2.510 2.500 2.490 2.480 - 100 150 AMBIENT TEMPERATURE (°C) ACCURACY vs ...
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... Analog Input Channel 5 Analog Input Channel 4 Analog Input Channel 3 Analog Input Channel 2 Analog Input Channel 1 Reference Output (2.5V) for MAX158. Test point for MX7828. Do not connect. Three-State Data Output, bit 0 (LSB) Three-State Data Output, bit 1 Three-State Data Output, bit 2 Three-State Data Output, bit 3 – ...
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... CMOS, High-Speed, 8-Bit ADCs with Multiplexer _______________Detailed Description Converter Operation The MAX154/MAX158 and MX7824/MX7828 use what is commonly called a “half-flash” conversion technique (Figure 3). Two 4-bit flash ADC sections are used to achieve an 8-bit result. Using 15 comparators, the upper 4-bit MS (most significant) flash ADC compares the unknown input voltage to the reference ladder and provides the upper four data bits ...
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RD 600ns 500ns 1000ns SETUP TIME REQUIRED V IS SAMPLED IN BY THE INTERNAL AND THE FOUR MSBs COMPARATORS PRIOR TO ARE LATCHED STARTING CONVERSION V IS TRACKED IN BY INTERNAL COMPARATORS Figure 4. Operating Sequence does not require microprocessor ...
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CMOS, High-Speed, 8-Bit ADCs with Multiplexer CSS ANALOG ADDR CHANNEL VALID ADDRESS t AH RDY t RDY INT t ACCI DATA Figure 6. Mode 1 Timing Diagram _____________Analog Considerations Reference and Input The ...
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... ADC’s input capaci- tance not necessary to filter these transients with an external capacitor on the AIN terminals. The MAX154/MAX158 and MX7824/MX7828 can mea- IN sure input signals with slew rates as high as 157mV/µs to the rated specifications. This means that the analog ...
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... The input voltage is scaled by an amplifier so that only positive voltages appear at the ADC’s inputs. An external reference should be used for the MX7824/ MX7828, but is not needed with the MAX154/MAX158. The analog input range is ±4V and the output code is complementary offset binary. The ideal input/output characteristic is shown in Figure 10b ...
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... A15 ADDRESS BUS A0 ADDRESS EN DECODE MREQ 5V ZBO 5k WAIT RD DATA BUS D0–D7 *A2 ON MAX158/MX7828 ONLY. Figure 11. Simple Mode 0 Interface + AIN1 3 AIN2 2 AIN3 MAX154 MX7824 1 AIN4 14 V REF REF- 12 GND A0 A1 Figure 13. 4-Channel Fast Sample and Infinite Hold ______________________________________________________________________________________ ...
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... MX7828KCAI 0°C to +70°C 28 SSOP MX7828LP 0°C to +70°C 28 PLCC MX7828KP 0°C to +70°C 28 PLCC MX7828LEAI -40°C to +85°C 28 SSOP MX7828KEAI -40°C to +85°C 28 SSOP MX7828CQ -40°C to +85°C 28 CERDIP MX7828BQ -40°C to +85°C 28 CERDIP MX7828UQ -55°C to +125°C 28 CERDIP MX7828TQ -55° ...