Datasheet LTC2945 (Analog Devices) - 7

LTC2945
TYPICAL PERFORMANCE CHARACTERISTICS VDD = 48V, TA = 25°C, unless noted. ADC Integral Nonlinearity ADC Differential Nonlinearity ADC Total Unadjusted Error (ΔSENSE) (ΔSENSE) (ΔSENSE)
0.4 0.3 0.50 0.2 0.2 0.25 0.1 0.0 0.0 0.00 ADC INL (LSB) ADC DNL (LSB) –0.1 AL UNADJUSTED ERROR (%) –0.2 –0.25 –0.2 ADC TOT –0.4 –0.3 –0.50 0 1024 2048 3072 4096 0 1024 2048 3072 4096 0 1024 2048 3072 4096 CODE CODE CODE 2945 G10 2945 G11 2945 G12
SDAO, SDAO, ALERT Loaded INTVCC Shunt Regulator Load Output Low Voltage SCL, SDAI Loaded Clamp Voltage Regulation
0.4 6.6 6.6 6.5 0.3 (V) 6.4 6.4 (V) T(OL) TAGE (V) 0.2 6.3 VOL , ALER , SCL(CL) V CC V SDA V SDA 6.2 INT 6.2 0.1 6.1 0.0 6.0 6.0 0 2 4 6 8 10 0.01 0.10 1.00 10.00 0 10 20 30 40 ISDA,ALERT (mA) ILOAD (mA) VCC SHUNT CURRENT (mA) 2945 G13 2945 G14 2945 G15
ADRO, ADR1 Voltage with Current SENSE+ Input Current SENSE– Input Current Sink or Source
150 10 3.0 8 2.5 110 6 2.0 + (µA) (V) 70 – (µA) 4 1.5 V ADR I SENSE I SENSE 2 1.0 30 0 0.5 –10 –2 0.0 0 20 40 60 80 0 20 40 60 80 –10 –5 0 5 10 VSENSE+ (V) VSENSE+ (V) IADR (µA) 2945 G16 2945 G17 2945 G18 2945fb For more information www.linear.com/LTC2945 7