MX7824 Maxim, MX7824 Datasheet
MX7824
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MX7824 Summary of contents
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... Description The MAX154/MAX158 and MX7824/MX7828 are high- speed, multi-channel analog-to-digital converters (ADCs). The MAX154 and MX7824 have four analog input channels, while the MAX158 and MX7828 have eight channels. Conversion time for all devices is 2.5µs. The MAX154/MAX158 also feature a 2.5V on-chip refer- ence, forming a complete high-speed data acquisition system ...
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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 3 3 AIN2 Analog Input Channel 2 4 AIN1 Analog Input Channel 1 REF OUT Reference Output (2.5V) for MAX154 Test point for MX7824. Do not connect. 6 DBO Three-State Data Output, bit 0 (LSB) 7 DB1 Three-State Data Output, bit 1 8 DB2 Three-State Data Output, bit 2 9 ...
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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 circuit in Figure 10a can be used for bipolar input operation. 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 ...
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... GND A0 A1 Figure 13. 4-Channel Fast Sample and Infinite Hold ______________________________________________________________________________________ CMOS, High-Speed, 8-Bit ADCs A0 A1 A2* MAX154 CS SPEECH AMP MAX158 INPUT RDY MX7824 MX7828 RD DB0–DB7 Figure 12. Speech Analysis Using Real-Time Filtering SAMPLE PULSE INT MX7226 DB0–DB7 DB0–DB7 ...
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... DB1 1 / ± 2 ±1 DB2 1 / ± 2 ±1 DB3 ± ± ± 2 ± ± ARE FOR MAX154/MX7824 ±1 ± ±1 Printed USA is a registered trademark of Maxim Integrated Products. AIN6 AIN8 (AIN2) (AIN4) AIN5 AIN7 V A0 (AIN1) (AIN3 (N.C.) 0.127" (3.228mm) ...