Datasheet

Parameter Description Min Typ Max Units Notes
Tbl Burst length – 1.86 – ms Vdd, Cs and Cx dependent.
See Section 4.2 for capacitor
selection.
Tr Response time – – 100 ms
5.4 Signal Processing
Table 5-2. Vdd = 3.0V, Cs = 10 nF, Cx = 5 pF, Ta = recommended range, unless otherwise noted
Description Min Typ Max Units Notes
Threshold differential 10 counts
Hysteresis 2 counts
Consensus filter length 4 samples
5.5 DC Specifications
Table 5-3. Vdd = 3.0V, Cs = 4.7 nF, Cx = 5 pF, short charge pulse, Ta = recommended range, unless
otherwise noted
Parameter Description Min Typ Max Units Notes
Vdd Supply voltage 1.8 5.5 V
Idd Supply current – 32
36
59
88
124
– μA 1.8 V
2.0 V
3.0 V
4.0 V
5.0 V
Vdds Supply turn-on slope 100 – – V/s Required for proper start-up
Vil Low input logic level – – 0.2 × Vdd
0.3 × Vdd
V Vdd = 1.8 V – 2.4 V
Vdd = 2.4 V – 5.5 V
Vhl High input logic level 0.7 × Vdd
0.6 × Vdd
– V Vdd = 1.8 V – 2.4 V
Vdd = 2.4 V – 5.5 V
Vol Low output voltage – – 0.6 V OUT, 4 mA sink
Voh High output voltage Vdd – 0.7 – – V OUT, 1 mA source
Iil Input leakage current – – ±1 μA
Cx Load capacitance range 0 – 100 pF
Ar Acquisition resolution – 9 14 bits
AT42QT1012
© 2017 Microchip Technology Inc.
Datasheet
DS40001948A-page 25