Datasheet LTC4151 (Analog Devices) - 4

LTC4151
e lecTrical 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) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
INL Integral Nonlinearity (SENSE+ – SENSE–) l ±1 ±3 LSB VIN (Note 5) l ±1 ±3 LSB ADIN l ±0.5 ±2 LSB s Transition Noise (SENSE+ – SENSE–) 1.2 µV T RMS VIN 0.3 mVRMS ADIN 22 µVRMS fCONV Conversion Rate (Continuous Mode) l 6 7.5 9 Hz tCONV Conversion Time (Snapshot Mode) (SENSE+ – SENSE–) l 53 67 85 ms ADIN, VIN l 26 33 42 ms RADIN ADIN Pin Input Resistance ADIN = 3V l 2 10 MW IADIN ADIN Pin Input Current ADIN = 3V l ±2 µA
I2C Interface
VADR(H) ADR0, ADR1 Input High Threshold l 2.3 2.65 3.0 V VADR(L) ADRO, ADRI Input Low Threshold l 0.2 0.6 0.9 V IADR(IN) ADRO, ADRI Input Current ADR0, ADR1 = 0V or 3V l ±70 µA ADR0, ADR1 = 0.8V or 2.2V l ±8 µA VSDA(OL) SDA, SDAO, SDAO Output Low Voltage ISDA, ISDAO, ISDAO = 8mA l 0.15 0.4 V ISDA,SCL(IN) SDA, SDAI, SDAO, SDAO, SCL Input SDA, SDAI, SDAO, SDAO, SCL = 5V l 0 ±2 µA Current 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/ 0.12 1.3 µs Start Condition tHD,STA(MIN) Minimum Hold Time After (Repeated) Start 140 600 ns Condition tSU,STA(MIN) Minimum Repeated Start Condition Set-Up 30 600 ns Time 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 50 110 250 ns Pulse Width 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
Note 3:
All currents into pins are positive. All voltages are referenced to may cause permanent damage to the device. Exposure to any Absolute GND, unless otherwise noted. Maximum Rating condition for extended periods may affect device
Note 4:
Guaranteed by design and not subject to test. reliability and lifetime.
Note 5:
Integral nonlinearity and total unadjusted error of VIN are tested
Note 2:
Internal clamps limit the SCL, SDA (LTC4151) and SDAI between 7V and 80V. (LTC4151-1/LTC4151-2) pins to a minimum of 5.5V. Driving these pins to
Note 6:
Offset error of V voltages beyond the clamp may damage the part. The pins can be safely IN is defined by extrapolating the straight line measured between 7V and 80V. tied to higher voltages through a resistor that limits the current below 5mA. 4151ff 4 For more information www.linear.com/LTC4151 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Application Package Description Revision History Typical Application Related Parts