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QT1101 Datasheet(PDF) 10 Page - Quantum Research Group |
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QT1101 Datasheet(HTML) 10 Page - Quantum Research Group |
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10 / 16 page  4 Specifications 4.1 Absolute Maximum Specifications Operating temperature, Ta.............................................................................................. -40 ~ +85ºC Storage temp, Ts...................................................................................................... -50 ~ +125ºC Vdd................................................................................................................... -0.3 ~ +6.0V Max continuous pin current, any control or drive pin............................................................................ ±20mA Short circuit duration to ground or Vdd, any pin................................................................................. infinite Voltage forced onto any pin.................................................................................. -0.3V ~ (Vdd + 0.3) Volts 4.2 Recommended Operating Conditions Operating temperature, Ta.............................................................................................. -40 ~ +85ºC VDD................................................................................................................... +2.8 ~ +5.0V Short-term supply ripple+noise............................................................................................... ±5mV/s Long-term supply stability................................................................................................... ±100mV Cs range.............................................................................................................. 2.2 ~ 100nF Cx range................................................................................................................. 0 ~ 50pF 4.3 AC Specifications Vdd = 5.0V, Ta = recommended, Cx = 5pF, Cs = 4.7nF; circuit of Figure 1.1 baud 38,400 8,000 Serial communications speed bps End of touch ms 40 Release time - all modes Tdr 200ms LP setting ms 200 Response time - LP mode Tdl ms 40 Response time - normal mode Tdn ms 15 Response time - Fast mode Tdf All 3 bursts ms 6.5 Burst duration Tbd ms 450 Startup time from cold start Tsu µs 2 Sample pulse duration Tpc Total deviation % 15 Burst modulation, percent Fm kHz 124 Burst center frequency Fc ms 300 Recalibration time Trc Notes Units Max Typ Min Description Parameter 4.4 DC Specifications Vdd = 5.0V, Ta = recommended, Cx = 5pF, Cs = 4.7nF, Ta = recommended range; circuit of Figure 1.1 unless noted bits 8 Acquisition resolution Ar µA ±1 Input leakage current Iil 2.5mA source V Vdd-0.5 High output voltage Voh 7mA sink V 0.5 Low output voltage Vol V 3.5 High input logic level Vhl V 0.7 Low input logic level Vil Req’d for startup, w/o external reset ckt V/s 100 Average supply turn-on slope Vdds @ Vdd = 3.0; 200ms LP mode µA 75 Average supply current, LP mode* Iddl @ Vdd = 5.0 @ Vdd = 4.0 @ Vdd = 3.6 @ Vdd = 3.3 @ Vdd = 2.8 mA 8 4.5 2.7 2.1 1.9 1.5 Average supply current, normal mode* Iddn Notes Units Max Typ Min Description Parameter *No spread spectrum circuit Lq 10 QT1101 R4.06/0806 |
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