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ADC0820CNEN Datasheet(PDF) 3 Page - NXP Semiconductors |
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ADC0820CNEN Datasheet(HTML) 3 Page - NXP Semiconductors |
3 / 14 page Philips Semiconductors Linear Products Product specification ADC0820 8-Bit, high-speed, µP-compatible A/D converter with track/hold function August 31, 1994 570 PIN DESCRIPTION (Continued) PIN NO SYMBOL DESCRIPTION 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 of RD or CS (see Figure 1). 10 GND Ground 11 VREF(-) The bottom of resistor ladder, voltage range: GND ≤VREF(-)≤VREF(+) 12 VREF(+) The top of resistor ladder, voltage range: VREF(-)≤VREF(+)≤VDD. 13 CS CS must be Low in order for the RD or WR to be recognized by the converter. 14 DB4 3-State data output—Bit 4 15 DB5 3-State data output—Bit 5 16 DB6 3-State data output—Bit 6 17 DB7 3-State data output—Bit 7 (MSB) 18 OFL Overflow output—if the analog input is higher than the VREF(+)- LSB, OFL will be low at the end of conversion. It can be used to cascade 2 or more devices to have more resolution (9, 10-bit). It is always active and never becomes 3-state. 19 NC No connection 20 VDD Power supply voltage ABSOLUTE MAXIMUM RATINGS1, 2 SYMBOL PARAMETER RATING UNIT VDD Supply voltage 7 V Logic control inputs -0.2 to VDD+0.2 V Voltage at other inputs and output -0.2 to VDD+0.2 V TSTG Storage temperature range -65 to +150 °C PD Maximum power dissipation3 TA=25°C(still-air) N package 1690 mW D package 1390 mW TSOLD Lead temperature (soldering, 10sec) 300 °C TA Operating ambient temperature range TMIN≤TA≤TMAX ADC0820CNEN/CNED 0 to +70 °C NOTES: 1. Absolute Maximum Ratings are those values beyond which the life of the device may be impaired. 2. All voltages are measured with respect to GND, unless otherwise specified. 3. Derate above 25 °C at the following rates: N package at 13.5mW/ °C D package at 11.1mW/ °C |
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