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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LTC6409 датащи(PDF) 4 Page - Linear Technology |
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LTC6409 датащи(HTML) 4 Page - Linear Technology |
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4 / 34 page  LTC2157-14/ LTC2156-14/LTC2155-14 4 21576514fa INTERNAL REFERENCE CHARACTERISTICS The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 5) PARAMETER CONDITIONS MIN TYP MAX UNITS VCM Output Voltage IOUT = 0 0.435 • VDD – 18mV 0.435 • VDD 0.435 • VDD + 18mV V VCM Output Temperature Drift ±37 ppm/°C VCM Output Resistance –1mA < IOUT < 1mA 4 Ω VREF Output Voltage IOUT = 0 1.225 1.250 1.275 V VREF Output Temperature Drift ±30 ppm/°C VREF Output Resistance –400μA < IOUT < 1mA 7 Ω VREF Line Regulation 1.7V < VDD < 1.9V 0.6 mV/V DIGITAL INPUTS AND OUTPUTS The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 5) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS ENCODE INPUTS (ENC+, ENC–) VID Differential Input Voltage (Note 8) l 0.2 V VICM Common Mode Input Voltage Internally Set Externally Set (Note 8) l 1.1 1.2 1.5 V V RIN Input Resistance (See Figure 2) 10 kΩ CIN Input Capacitance (Note 8) 2 pF DIGITAL INPUTS (CS, SDI, SCK) VIH High Level Input Voltage VDD = 1.8V l 1.3 V VIL Low Level Input Voltage VDD = 1.8V l 0.6 V IIN Input Current VIN = 0V to 3.6V l –10 10 μA CIN Input Capacitance (Note 8) 3 pF SDO OUTPUT (Open-Drain Output. Requires 2k Pull-Up Resistor if SDO Is Used) ROL Logic Low Output Resistance to GND VDD = 1.8V, SDO = 0V 200 Ω IOH Logic High Output Leakage Current SDO = 0V to 3.6V l –10 10 μA COUT Output Capacitance (Note 8) 4 pF POWER REQUIREMENTS The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 5) SYMBOL PARAMETER CONDITIONS LTC2157-14 LTC2156-14 LTC2155-14 UNITS MIN TYP MAX MIN TYP MAX MIN TYP MAX VDD Analog Supply Voltage (Note 9) l 1.7 1.8 1.9 1.7 1.8 1.9 1.7 1.8 1.9 V OVDD Output Supply Voltage (Note 9) l 1.7 1.8 1.9 1.7 1.8 1.9 1.7 1.8 1.9 V IVDD Analog Supply Current l 316 350 299 330 274 305 mA IOVDD Digital Supply Current 1.75mA LVDS Mode 3.5mA LVDS Mode l l 45 76 50 85 43 73 49 84 41 71 48 83 mA mA PDISS Power Dissipation 1.75mA LVDS Mode 3.5mA LVDS Mode l l 650 706 720 783 616 670 682 745 567 621 635 698 mW mW PSLEEP Sleep Mode Power Clock Disabled Clocked at fS(MAX) <5 <5 <5 <5 <5 <5 mW mW PNAP Nap Mode Power Clocked at fS(MAX) 213 198 184 mW |
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