(Hong Kong)
Product Summary
The AD7820LRZ is a high speed, microprocessor-compatible 8-bit analog-to-digital converter which uses a half-flash conversion technique to achieve a conversion time of 1.36 μs. The converter has a 0V to +5V analog input volatge range with a single +5V supply. The half-flash technique consists of 31 compatators, a most significant 4-bit ADC and a least significant 4-bit ADC. The input to the AD7820LRZ is tracked and held by the input sampling citcuity, eliminating the need for an external sample-and-hold for signals with slew rates less than 100mV/μs.
Parametrics
AD7820LRZ absolute maximum ratings: (1)VDD to GND: 0 to 7V; (2)Digital input voltage to GND(pin6-8, 13): -0.3 to VDD+0.3V; (3)Digital output voltage to GND(pin2-5, 14-18): -0.3 to VDD+0.3V; (4)VREF(+) to GND: VREF(-) to VDD+0.3V; (5)VREF(-) to GND: 0, VREF(+); (6)VIn to GND: -0.3V to VDD+0.3V; (7)Operating temperature range: commercial(K,L versions): -40 to 85 ℃; Industrial(B,C versions): -40 to 85 ℃; Extended(T,U versions): -55 to 125 ℃; (8)Storage temperature range: -65 to +150 ℃; (9)Lead temperature(soldering, 10secs): +300 ℃; (10)Power dissipation to +75 ℃: 450 mW; (11)Derates above +75 ℃ by: 6 mW/℃.
Features
AD7820LRZ features: (1)Fast conversion time: 1.36μs max; (2)Built-in track-and-hold function; (3)No missed codes; (4)No user trims required; (5)Single +5V supply; (6)Ratiometric operation; (7)No external clock; (8)Extended temperature range operation; (9)Skinny 20-pin DIP, SOIC and 20-terminal surface mount package, surface mount packages.
Diagrams
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 AD7820LRZ |
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IC ADC 8BIT HS TRACK/HOLD 20SOIC |
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AD7820LRZ-REEL |
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IC ADC 8BIT HS TRACK/HOLD 20SOIC |
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