IC-TW28 Datasheet, PDF (11/80 Pages) IC-Haus GmbH – 10-BIT SIN/COS INTERPOLATOR

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Rev D2, Page 11/80
ELECTRICAL CHARACTERISTICS
Operating conditions: AVDD = DVDD = IOVDD = 3.1...3.6 V, Tj = –40...+125 °C, reference point AVSS unless otherwise stated
Item Symbol Parameter
No.
Conditions
Unit
Min. Typ. Max.
A05 Isc()hi
Short-Circuit Current High
short to GND
-40
mA
A06 Isc()lo
Short-Circuit Current Low
short to VDD
40
mA
Bias Outputs: VC, VREF
B01 VC
Bias Voltage VC
I(VC) = 0
50
%AVDD
B02 dVREF
ADC Reference Voltage VREF dVREF = V(VREF) – V(VC); I(VREF) = 0
versus VC
–1.1 –1 –0.9
V
3.3 V
Nominal VDD
3.3 V
Nominal VDD and
Maximum Input
Voltage
2.2 V
Maximum Input Voltage
0.35 V
0V
SIN+% ^{Max. Input}
COS+%
SIN–%
Amplitude
COS–% _{(700 mV)}
Minimum Input Voltage
Low Input Range
SIN+%
COS+%
SIN–%
COS–%
Maximum
Input
Amplitude
(2 V)
0V
Minimum Input Voltage
High Input Range
Figure 1: Differential Input Amplitude Ain()diff: Max(SIN+ – SIN–) or Max(COS+ – COS–)
3.3 V
Nominal VDD
2.2 V
1.85 V
0.7 V
0.35 V
0V
Minimum
Gain
Maximum
Gain
Figure 2: Permissible Input Common Mode Vcm: (SIN+ + SIN–)/2 or (COS+ + COS–)/2
ABrel
t _MTD
tAB
B
Converter
Error
Actual converter
INL: The maximum absolute error.
DNL: The maximum step
between two consecutive
samples.
A
t whi
AArel
T (100 %)
Figure 3: Description of AB Output Signals
Ideal converter
0°
180° _{Angular Position} 360°
Figure 4: Definition of Integral and Differential
Nonlinearity