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LTC4215 Datasheet(数据表) 5 Page - Linear Technology |
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LTC4215 Datasheet(HTML) 5 Page - Linear Technology |
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5 page 
LTC4215 5 4215fb 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: All currents into pins are positive; all voltages are referenced to GND unless otherwise specified. Note 3: An internal clamp limits the GATE pin to a minimum of 5V above SOURCE. Driving this pin to voltages beyond the clamp may damage the device. Note 4: Offset error is the offset voltage measured from 1LSB when the output code flickers between 0000 0000 and 0000 0001. Note 5: Integral nonlinearity is defined as the deviation of a code from a precise analog input voltage. Maximum specifications are limited by the LSB step size and the single shot measurement. Typical specifications are measured from the 1/4, 1/2 and 3/4 areas of the quantization band. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS I⎯A⎯L⎯E⎯R⎯T ⎯A⎯L⎯E⎯R⎯T Input Current ⎯A⎯L⎯E⎯R⎯T = 6.5V ● ±1 µA V⎯A⎯L⎯E⎯R⎯T(OL) ⎯A⎯L⎯E⎯R⎯T Output Low Voltage IALERT = 3mA ● 0.2 0.4 V VSDA,SCL(TH) SDA, SCL Input Threshold ● 1.3 1.7 1.9 V ISDA,SCL(OH) SDA, SCL Input Current SCL, SDA = 6.5V ● ±1 µA VSDA(OL) SDA Output Low Voltage ISDA = 3mA ● 0.2 0.4 V I2C Interface Timing fSCL(MAX) SCL Clock Frequency Operates with fSCL ≤ fSCL(MAX) ● 400 1000 kHz tBUF(MIN) Bus Free Time Between Stop/Start Condition ● 0.12 1.3 µs tHD,STA(MIN) Hold Time After (Repeated) Start Condition ● 30 600 ns tSU,STA(MIN) Repeated Start Condition Set-Up Time ● 30 600 ns tSU,STO(MIN) Stop Condition Set-Up Time ● 140 600 ns tHD,DAT(MIN) Data Hold Time (Input) ● 30 100 ns tHD,DATO Data Hold Time (Output) ● 300 500 900 ns tSU,DAT(MIN) Data Set-Up Time ● 30 600 ns tSP Suppressed Spike Pulse Width ● 50 110 250 ns CX SCL, SDA Input Capacitance SDAI Tied to SDAO ● 10 pF ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VDD = 12V unless otherwise noted. TYPICAL PERFOR A CE CHARACTERISTICS TA = 25°C, VDD = 12V unless otherwise noted IDD vs VDD VDD (V) 0 0 2 4 5 4215 G01 1 3 10 25 15 20 INTVCC (V) 2.5 2.5 3.0 4.0 4215 G02 3.0 3.5 4.0 3.5 ILOAD (mA) 0 0 2 4 4215 G03 1 3 4 10 2 68 VDD = 12V, 5V VDD = 3.3V INTVCC vs VDD INTVCC vs ILOAD |
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