SK3004KW Datasheet| Symbol | Test | Max | Units | Conditions | | Ciio(i) | Input/Output Capacitance (SDA) | 8 | pF | Vli0=OV | | CIN(1) | Input Capacitance (AO, A1, A2, A3, SCL, WP) | 6 | pF | VIN=OV | | | | | |
SK3004KW Price| PARAMETER | SYMBOL | CONDITIONS | MIN TYP MAX | UNITS | | DC ACCURACY (Note l) | | Resolution | | | 14 | Bits | | Relative Accuracy (Klote 2) | lNL | | +0.7 ±2 | LSB | | Differential Klonlinearity | DNL | No missing codes over temperature | 1 0 ±0 5 +1 5 | LSB | | Offset Error | | | ±10 | LSB | | Offset Temperature Coefficient | | | 0 3 | ppm/oC | | Gain Error | | (Note 3) | ±20 | LSB | | Gain Temperature Coefficient | | | +0.8 | ppm/oC | | Channel-to-Channel Offset Matching | | | ±1 | LSB | | Channel-to-Channel Gain Matching | | | ±1 | LSB | | DYNAMIC SPECIFICATIONS (1 kHz sine-wave input, 2.5Vp_p, full-scale analog input, 116ksps, 2.1 MHz external clock) | | Signal-to-Kloise Plus Distortion Ratio | SINAD | | 77 81 | dB | | Total Harmonic Distortion | THD | Up to the 5th harmonic | -96 -88 | dB | | Spurious-Free Dynamic Range | SFDR | | 84 98 | dB | | Channel-to-Channel Crosstalk | | f Klote 4) | -85 | dB | | Small-Signal Bandwidth | SSBW | -3dB point | 3 0 | MHz | | Full-Power Bandwidth | FPBW | SIKIAD> 68dB | 2 0 | MHz | | CONVERSION RATE | | | | External clock, 2.1MHz 15 SCLK cycles | 7 2 | | | Conversion Time (Klote 5) | tCONV | Internal clock | 6 8 | US | | | | | |
SK3004KW on stock 3) Selecting the Bias Resistor The feedback voltage was programmed to be 200mV by using two divider resistors (R2 and R4) at the soft start pin. (The internal 0.8V reference was overwritten by the programmed 0.2V to reduce the sense voltage and increase the efficiency). The bias resistor is used to set the operating current of the LumiLED as equation Rb = Vn3 'b I F where VFB iS set as 200mV, IF iS the operating current of the LumiLED. For lW application, IF=350mA, Rb=R1_0.560hm For 5W application, IF=700mA, Rb=R1R5=0.280hm For 3W application, IF=lOOOmA, Rb=R1R3=0.20hm | | | | | | | | | | | | | | | | | | | | | | V=2 | pp | | | | | | | < | | | | | | | | 1 7 | | | | | | | | 1 | | | | | | vo=( | ) 2Vpp- | | I | | | | | | | 7I | | | | | | Vo='4Vppi | | | | | | | l l | | U | | | | | | | |
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