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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AD768 датащи(PDF) 4 Page - Analog Devices |
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AD768 датащи(HTML) 4 Page - Analog Devices |
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4 / 20 page  REV. B –4– AD768 WAFER TEST LIMITS1 Parameter AD768ACHIPS Limit Units Integral Nonlinearity 2 ±8 LSB max Differential Nonlinearity 2 ±6 LSB max Offset Error ±0.2 % FSR max Gain Error ±1.0 % FSR max Reference Voltage ±1.0 % of nom. 2.5 V max Positive Supply Current 40 mA max Negative Supply Current 73 mA max Power Dissipation 600 mW max NOTES 1Electrical test are performed at wafer probe to the limits shown. Due to variations in assembly methods and normal yield loss, yield after packaging is not guaranteed for standard product dice. 2Limits extrapolated from testing of individual bit errors. 3Die offers latch control pad. Edge triggered latches become level triggered when latch control and clock pads are high. 4Die substrate is connected to V EE. PIN DESCRIPTIONS Pin No. Symbol Type Name and Function 1 IOUTA AO DAC Current Output. Full-scale current when all data bits are 1s. 2 NR AI Noise Reduction Node. Add capacitor for noise reduction. 3 REFOUT AO Reference Output Voltage. Nominal value is 2.5 V. 4 NC NC No Connect. Reserved for internal use. 5 REFCOM P Reference Ground. 6 IREFIN AI Reference Input Current. Nominal is 5 mA. DAC full-scale is 4 × this current. 7 DB0 DI Data Bit 0 (LSB). 8–14 DB1–DB7 DI Data Bits 1–7. 15 DCOM P Digital Ground. 16 CLOCK DI Clock Input. Data latched on positive edge of clock. 17–23 DB8–DB14 DI Data Bits 8–14. 24 DB15 DI Data Bit 15 (MSB). 25 VDD P Positive Supply Voltage. Nominal is +5 V. 26 VEE P Negative Supply Voltage. Nominal is –5 V. 27 IOUTB AO Complementary DAC Current Output. Full-scale current when all data bits are 0s. 28 LADCOM P DAC Ladder Common. Type: AI = Analog Input; DI = Digital Input; AO = Analog Output; P = Power. (TA = +25 C, VDD = +5.0 V, VEE = –5.0 V, IREFIN = 5 mA, unless otherwise noted) VDD VDD DB15 DB14 DB13 DB12 DB11 DB10 REFCOM IREFIN DB0 DB1 DB2 DB3 DB4 VEE VEE IOUTB LADCOM IOUTA NR REFOUT NC DB9 DB8 CLOCK LATCH CONTROL DCOM DB7 DB6 DB5 Die Size: 0.1106 × 0.1417 inch, 15,672 sq. mils (2.81 × 3.60 mm, 10.116 sq. mm) DICE CHARACTERISTICS 3, 4 PIN CONFIGURATION 14 13 12 11 17 16 15 20 19 18 10 9 8 1 2 3 4 7 6 5 TOP VIEW (Not to Scale) 28 27 26 25 24 23 22 21 AD768 NC = NO CONNECT IOUTA VDD (+5V) VEE (–5V) IOUTB LADCOM NR REFOUT NC DB13 DB14 DB15 (MSB) REFCOM IREFIN (LSB) DB0 DB1 DB2 DB3 DB10 DB11 DB12 DB4 DB5 DB6 DB7 DB9 DCOM CLOCK DB8 |
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