ADC0820CNED Philips Semiconductors, ADC0820CNED Datasheet
ADC0820CNED
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ADC0820CNED Summary of contents
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... RD 9 INT 10 GND TOP VIEW APPLICATIONS Microprocessor-based monitoring and control systems Transducer/ P interface Process control Logic analyzers Test and measurement TEMPERATURE RANGE ORDER CODE 0 to +70 C ADC0820CNEN 0 to +70 C ADC0820CNED 568 Product specification ADC0820 OFL 17 DB7 DB6 16 DB5 15 ...
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... Philips Semiconductors Linear Products 8-Bit, high-speed, P-compatible A/D converter with track/hold function BLOCK DIAGRAM V IN PIN DESCRIPTION PIN NO SYMBOL 1 V Analog input; range=GND DB0 3-state data output—Bit 0 (LSB) 3 DB1 3-state data output—Bit 1 4 DB2 3-state data output—Bit 2 5 DB3 3-state data output— ...
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... Philips Semiconductors Linear Products 8-Bit, high-speed, P-compatible A/D converter with track/hold function PIN DESCRIPTION (Continued) PIN NO SYMBOL RD Mode INT going Low indicates that the conversion is completed and the data result is in the output latch. INT is reset by the rising edge (see Figure 1). ...
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... Philips Semiconductors Linear Products 8-Bit, high-speed, P-compatible A/D converter with track/hold function DC ELECTRICAL CHARACTERISTICS RD mode (Pin 7=0), V =5V, V (+)=5V, and V DD REF SYMBOL SYMBOL PARAMETER PARAMETER Resolution 1 Unadjusted error R Reference resistance REF 5 V (+) Input voltage REF V (-) Input voltage REF 5 V Input voltage IN Maximum analog input leakage current ...
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... Philips Semiconductors Linear Products 8-Bit, high-speed, P-compatible A/D converter with track/hold function AC ELECTRICAL CHARACTERISTICS 20ns 5V REF(+) REF(-) SYMBOL SYMBOL PARAMETER PARAMETER t Conversion time for RD mode CRD Access time (delay from falling edge of t ACCO RD to output valid) ...
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... Philips Semiconductors Linear Products 8-Bit, high-speed, P-compatible A/D converter with track/hold function 3-STATE TEST CIRCUITS AND WAVEFORMS 10pF 10pF MODE = LOW CS RD RDY (OUTPUT) INT DB0–DB7 OFL August 31, 1994 DATA GND ...
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... Philips Semiconductors Linear Products 8-Bit, high-speed, P-compatible A/D converter with track/hold function MODE = LOW LOW WR INT DB0–DB7 MODE = HIGH CS WR (INPUT) RD INT DB0–DB7 INT DB0–DB7 August 31, 1994 INT VALID DATA Figure 2. Stand-Alone Mode ...
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... Philips Semiconductors Linear Products 8-Bit, high-speed, P-compatible A/D converter with track/hold function FUNCTIONAL DESCRIPTION General Operation The ADC0820 uses two 4-bit flash A/D converters to make an 8-bit measurement (Block Diagram). Each flash ADC is made comparators which compare the unknown input to a reference ladder to get a 4-bit result. To take a full 8-bit reading, one flash conversion is done to provide the 4 most significant data bits (via the MS flash ADC) ...
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... Philips Semiconductors Linear Products 8-Bit, high-speed, P-compatible A/D converter with track/hold function To start a conversion in the WR-RD mode, the WR line is brought Low. At this instant the MS comparators go from zeroing to comparison mode (Figure 8). When WR is returned High after at least 600ns, the output from the first set of comparators (the first flash) is decoded and latched ...
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... Philips Semiconductors Linear Products 8-Bit, high-speed, P-compatible A/D converter with track/hold function before reading the conversion result. INT will typically go Low 800ns after WR’s rising edge. However shorter conversion time is desired, the processor need not wait for INT and can exercise a Read after only 600ns ...
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... Philips Semiconductors Linear Products 8-Bit, high-speed, P-compatible A/D converter with track/hold function WR MS COMPARATORS ZERO TO REFERENCE LADDER. MS COMPARATORS COMPARE LS COMPARATORS FLOAT V IN LADDER TAP. THE COMPARATOR COMPARATORS ZERO TO V THE COMPARATOR’S INPUT CAPACTORS TRACK V IN+ VI (+) N GND VI (–) N 1.2k 5V REF (+) 2.5V REF(– ...
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... Philips Semiconductors Linear Products 8-Bit, high-speed, P-compatible A/D converter with track/hold function 12pF LSB R–LADDER 15 LSB COMPARATORS LSB R–LADDER August 31, 1994 R ON 1pF V IN 1pF R ON 1pF 1pF a. Figure 10. 579 Product specification ADC0820 350 31pF 12pF ...
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... Philips Semiconductors Linear Products 8-Bit, high-speed, P-compatible A/D converter with track/hold function therefore not necessary to filter out these transients by putting an external cap on the V terminal input amplifier that can settle IN within 600ns is used to drive the input. The NE530 is a suitable op amp for driving the input of the ADC0820. ...
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... Philips Semiconductors Linear Products 8-Bit, high-speed, P-compatible A/D converter with track/hold function + 0 MODE V V REF REF REF GND MODE 1k V REF REF GND August 31, 1994 (+) DB7 DB0 (–) OFL (+) DB7 DB0 (–) OFL Figure 13 ...