LTC1408-12 UWDY A IC ACCURACY The ● denotes the specifications which apply over the full operating temperature range,otherwise specifications are at TA = 25 ° C. With internal reference, VDD = VCC = 3V.SYMBOLPARAMETERCONDITIONSMINTYPMAXUNITS SINAD Signal-to-Noise Plus 100kHz Input Signal ● 70 72 dB Distortion Ratio 300kHz Input Signal 72 dB THD Total Harmonic 100kHz First 5 Harmonics ● –80 –90 dB Distortion 300kHz First 5 Harmonics –86 dB SFDR Spurious Free 100kHz Input Signal 90 dB Dynamic Range 300kHz Input Signal 86 dB IMD Intermodulation 0.625VP-P, 833kHz into CH0+, 0.625VP-P, 841kHz into CH0–. –80 dB Distortion Bipolar Mode. Also Applicable to Other Channels Code-to-Code VREF = 2.5V (Note 17) 0.2 LSBRMS Transition Noise Full Power Bandwidth VIN = 2.5VP-P, SDO = 11585LSBP-P (–3dBFS) (Note 15) 50 MHz Full Linear Bandwidth S/(N + D) ≥ 68dB, Bipolar Differential Input 5 MHz UUUI TER AL REFERE CE CHARACTERISTICS TA = 25 ° C. VDD = VCC = 3V.PARAMETERCONDITIONSMINTYPMAXUNITS VREF Output Voltage IOUT = 0 2.5 V VREF Output Tempco 15 ppm/°C VREF Line Regulation VDD = 2.7V to 3.6V, VREF = 2.5V 600 µV/V VREF Output Resistance Load Current = 0.5mA 0.2 Ω VREF Settling Time CREF = 10µF 2 ms External VREF Input Range 2.55 VDD V UUDIGITAL I PUTS A D DIGITAL OUTPUTS The ● denotes the specifications which apply over thefull operating temperature range, otherwise specifications are at TA = 25 ° C. VDD = VCC = 3V.SYMBOLPARAMETERCONDITIONSMINTYPMAXUNITS VIH High Level Input Voltage VDD = 3.3V ● 2.4 V VIL Low Level Input Voltage VDD = 2.7V ● 0.6 V IIN Digital Input Current VIN = 0V to VDD ● ±10 µA CIN Digital Input Capacitance 5 pF VOH High Level Output Voltage VDD = 3V, IOUT = – 200µA ● 2.5 2.9 V VOL Low Level Output Voltage VDD = 2.7V, IOUT = 160µA 0.05 V VDD = 2.7V, IOUT = 1.6mA ● 0.4 V IOZ Hi-Z Output Leakage DOUT VOUT = 0V and VDD ● ±10 µA COZ Hi-Z Output Capacitance DOUT 1 pF ISOURCE Output Short-Circuit Source Current VOUT = 0V, VDD = 3V 20 mA ISINK Output Short-Circuit Sink Current VOUT = VDD = 3V 15 mA 140812f 3