LTC1273 LTC1275/LTC1276 UCO VERTER CHCARA TERISTICS The ● denotes the specifications which apply over the full operatingtemperature range, otherwise specfications are at TA = 25 ° C. With Internal Reference (Notes 5 and 6)LTC1273A/LTC1275A/LTC1276ALTC1273B/LTC1275B/LTC1276BPARAMETERCONDITIONSMINTYPMAXMINTYPMAXUNITS Resolution (No Missing Codes) ● 12 12 Bits Integral Linearity Error (Note 7) ±1/2 ±1 LSB Commercial ● ±1/2 ±1 LSB Military ● ±3/4 ±1 LSB Differential Linearity Error Commercial ● ±3/4 ±1 LSB Military ● ±1 ±1 LSB Offset Error (Note 8) ±3 ±4 LSB ● ±4 ±6 LSB Gain Error ±10 ±15 LSB Gain Error Tempco IOUT(REFERENCE) = 0 ● ±5 ±35 ±10 ±45 ppm/°C UWDY A IC ACCURACY (Note 5)LTC1273A/LTC1275A/LTC1276A LTC1273B/LTC1275B/LTC1276BSYMBOLPARAMETERCONDITIONSMINTYPMAXUNITS S/(N + D) Signal-to-Noise Plus Distortion Ratio 50kHz/150kHz Input Signal 72/70 dB THD Total Harmonic Distortion 50kHz/150kHz Input Signal – 83/– 74 dB Up to 5th Harmonic Peak Harmonic or Spurious Noise 50kHz/150kHz Input Signal – 85/– 76 dB IMD Intermodulation Distortion fIN1 = 29.37kHz, fIN2 = 32.446kHz – 80 dB Full Power Bandwidth 4.5 MHz Full Linear Bandwidth (S/(N + D) ≥ 68dB) 200 kHz UUA ALOG I PUT The ● denotes the specifications which apply over the full operating temperature range, otherwisespecfications are at TA = 25 ° C. (Note 5)LTC1273A/LTC1275A/LTC1276A LTC1273B/LTC1275B/LTC1276BSYMBOLPARAMETERCONDITIONSMINTYPMAXUNITS VIN Analog Input Range (Note 9) 4.95V ≤ VDD ≤ 5.25V (LTC1273) ● 0 to 5 V 4.75V ≤ VDD ≤ 5.25V, – 5.25V ≤ VSS ≤ – 2.45V (LTC1275) ● ±2.5 V 4.95V ≤ VDD ≤ 5.25V, – 5.25V ≤ VSS ≤ – 4.95V (LTC1276) ● ±5 V IIN Analog Input Leakage Current CS = High ● ±1 µA CIN Analog Input Capacitance Between Conversions (Sample Mode) 50 pF During Conversions (Hold Mode) 5 pF tACQ Sample-and-Hold Commercial ● 600 ns Acquisition Time Military ● 1000 ns UUUI TER AL REFERE CE CHARACTERISTICS The ● denotes the specifications which apply over thefull operating temperature range, otherwise specfications are at TA = 25 ° C. (Note 5)LTC1273A/LTC1275A/LTC1276ALTC1273B/LTC1275B/LTC1276BPARAMETERCONDITIONSMINTYPMAXMINTYPMAXUNITS VREF Output Voltage IOUT = 0 2.400 2.420 2.440 2.400 2.420 2.440 V VREF Output Tempco IOUT = 0 ● ±5 ±25 ±10 ±45 ppm/°C VREF Line Regulation 4.95V ≤ VDD ≤ 5.25V 0.01 0.01 LSB/V – 5.25V ≤ VSS ≤ – 4.95V 0.01 0.01 LSB/V VREF Load Regulation 0V ≤ |IOUT| ≤ 1mA 2 2 LSB/mA 127356fa 3
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