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LTC4151-1 Datasheet(PDF) 4 Page - Linear Technology |
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LTC4151-1 Datasheet(HTML) 4 Page - Linear Technology |
4 / 16 page LTC4151/LTC4151-1 4 41511fa SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS σ T Transition Noise (SENSE+ – SENSE–) VIN ADIN 1.2 0.3 22 μVRMS mVRMS μVRMS fCONV Conversion Rate (Continuous Mode) l 6 7.5 9 Hz tCONV Conversion Time (Snapshot Mode) (SENSE+ – SENSE–) ADIN, VIN l l 53 26 67 33 85 42 ms ms RADIN ADIN Pin Input Resistance ADIN = 3V l 210 M Ω IADIN ADIN Pin Input Current ADIN = 3V l ±2 μA I2C Interface VADR(H) ADR0, ADR1 Input High Threshold l 2.3 2.65 2.9 V VADR(L) ADRO, ADRI Input Low Threshold l 0.3 0.6 0.9 V IADR(IN) ADRO, ADRI Input Current ADR0, ADR1 = 0V or 3V ADR0, ADR1 = 0.8V or 2.2V l l ±8 ±70 μA μA VSDA(OL) SDA, SDAO Output Low Voltage ISDA, ISDAO = 8mA l 0.15 0.4 V ISDA,SCL(IN) SDA, SDAI, SDAO, SCL Input Current SDA, SDAI, SDAO, SCL = 5V l 0±2 μA VSDA,SCL(TH) SDA, SDAI, SCL Input Threshold l 1.6 1.8 2 V VSDA,SCL(CL) SDA, SDAI, SCL Clamp Voltage ISDA, ISDAI, ISCL = 3mA l 5.5 6.1 6.6 V I2C Interface Timing (Note 4) fSCL(MAX) Maximum SCL Clock Frequency 400 kHz tLOW Minimum SCL Low Period 0.65 1.3 μs tHIGH Minimum SCL High Period 50 600 ns tBUF(MIN) Minimum Bus Free Time Between Stop/ Start Condition 0.12 1.3 μs tHD,STA(MIN) Minimum Hold Time After (Repeated) Start Condition 140 600 ns tSU,STA(MIN) Minimum Repeated Start Condition Set-Up Time 30 600 ns tSU,STO(MIN) Minimum Stop Condition Set-Up Time 30 600 ns tHD,DATI(MIN) Minimum Data Hold Time Input –100 0 ns tHD,DATO(MIN) Minimum Data Hold Time Output 300 600 900 ns tSU,DAT(MIN) Minimum Data Set-Up Time Input 30 100 ns tSP(MAX) Maximum Suppressed Spike Pulse Width 50 110 250 ns tRST Stuck-Bus Reset Time SCL or SDA/SDAI Held Low 20 33 ms CX SCL, SDA Input Capacitance 5 10 pF Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: Internal clamps limit the SCL, SDA (LTC4151) and SDAI (LTC4151-1) pins to a minimum of 5.5V. Driving these pins to voltages beyond the clamp may damage the part. The pins can be safely tied to higher voltages through a resistor that limits the current below 5mA. ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN is from 7V to 80V, unless noted. (Note 3) Note 3: All currents into pins are positive. All voltages are referenced to GND, unless otherwise noted. Note 4: Guaranteed by design and not subject to test. Note 5: Integral nonlinearity and total unadjusted error of VIN are tested between 7V and 80V. Note 6: Offset error of VIN is defined by extrapolating the straight line measured between 7V and 80V. |
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