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ADC601 Arkusz danych(PDF) 4 Page - Burr-Brown (TI) |
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ADC601 Arkusz danych(HTML) 4 Page - Burr-Brown (TI) |
4 / 4 page 4 ® ADC601 PIN NUMBER DESIGNATION DESCRIPTION 1-6 and 11-16 Bit 1 to Bit 12 12-bit parallel output data capable of sinking 3.2mA. 9 Serial Out 12-bit serial data output synchronized with the negative edge of each appropriate clock cycle. 10 Status Conversion status strobe is high during data conversion; low when parallel data is valid. Negative edge may be used to latch parallel data, however, appropriate latch set-up time must be provided. Refer to t BBL in the ADC601 timing diagram. 17 Clock Out Negative edge indicates when serial data is valid. After convert command goes high, fist cycle clocks bit 1 (MSB). The clock continues to run when convert command is high and resets low with convert command. 18 Convert Command High transition starts conversion; and should remain high during conversion. Low will reset clock and SAR logic. 19 Clock Rate Control May be used to increase clock speed, by increasing the positive portion of the clock. High is normal operation. 24 20V Input 20V input range allows ±10Vp-p analog input signal. Short to ground when not used. 25 10V Input 10V input range allows 0 to –10Vp-p or ±5Vp-p input range. 26 Comparator In Only used in bipolar mode when it is connected to bipolar offset pin through short lead with low resistance. 27 Ground Sense Ground Sense pin. (See text for use). 29 Bipolar Offset Current Bipolar offset current short to comparator In through very short lead with very low resistance for bipolar operation. Short to ground for unipolar operation. PIN CONFIGURATION PIN DEFINITIONS (1) NC = No internal connection. Any voltage may be connected to pin 31, however. (2) Pin 22 must be very cleanly decoupled to keep digital noise out of the analog circuits. Clock Reference 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 (MSB) Bit 1 Bit 2 Bit 3 Bit 4 Bit 5 Bit 6 +V (+5V) Digital Common (Digital) Serial Out Status Bit 7 Bit 8 Bit 9 Bit 10 Bit 11 Bit 12 Common (Analog) NC –V (–15V) Analog Bipolar Offset Current Common (Analog) Ground Sense Comparator Input 10V Input 20V Input –V (–15V) Analog +V (+5V) Digital Common (Digital) +V (+15V) Analog Clock Rate Control Convert Command Clock Out 545 Ω 1k Ω DD CC CC DD CC CMOS Bipolar (1) (2) – + 2k Ω |
Podobny numer części - ADC601 |
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Podobny opis - ADC601 |
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