MB86R01 Datasheet, PDF (52/89 Pages) Fujitsu Component Limited. – MB86R01 DATA SHEET

MB86R01 DATA SHEET
8.4.3. ADC
Table 8-16 Recommended Operating Conditions
Parameter
Power supply voltage
Reference voltage (H)
Reference voltage (L)
Decoupling capacitor
Analog input voltage
Analog input frequency
Symbol
AD_AVD0
AD_VRH0
AD_VRH1
AD_VRL0
AD_VRL1
AD_VR0 (*2)
AD_VR1 (*2)
AD_VIN0
AD_VIN1
AD_VIN0
AD_VIN1
Min.
2.70
AD_AVD0*0.75
V_SS (*1)
0.05
AD_VRL0
AD_VRL1
0
Value
Typ.
3.00
–
–
–
–
–
Unit
Max.
3.60
V
AD_AVD0
V
AD_AVD0*0.25 V
–
μF
AD_VRH0
AD_VRH1
V
500
kHz
Note:
*1: V_SS = AD_AVS1 (analogue GND)
*2: In the case that VR is decoupled with AVS by decoupling capacitor, A/D outputs incorrect result at
immediately after power-on or at the resumption from power down mode.
Because charge current for decoupling capacitors is supplied through the reference resistance, it
takes about 2ms to get correct result (it is the case decoupling capacitor is 0.1µF.).
Table 8-17 ADC Characteristics
Parameter
(VDD = 1.2V, AVD = 3.0V, FS = 100KS/s, FC = 1.4MHz, FVIN = 1 kHz, T_A = 25°C (*1))
Symbol
Min.
Value
Typ.
Unit
Max.
Supply current
AD_AVD0
–
0.8
1.2
mA
(included reference current)
-1
–
50
µA
Reference voltage (M)
AD_VR0
AD_VR1
–
AD_AVD0/2
–
V
-3
–
3
%
Reference resistance
AD_VRH0
AD_VRH1
AD_VRL0
7.3
AD_VRL1
9
10.7
kΩ
Zero transition voltage
(*2)
Typ.
AD_VRL0+1LSB
Typ.
-20
AD_VRL1+1LSB
+20
mV
Full scale transition Voltage
(*2)
Typ.
AD_VRH0-1LSB
Typ.
-20
AD_VRH1-1LSB
+20
mV
Integral non linearity
(*3)
-2.0
–
+2.0
LSB
Differential non linearity
(*3)
-1.5
–
+1.5
LSB
*1: VR is connected to AVS with decoupling capacitor (0.1µF).
Unique voltage is supplied to VRH and VRL by voltage source.
*2: VZT and VFST are dependent on chip layout and wiring resistance.
*3: 1LSB = (VFST-VZT)/1022, INLn = ((1LSBxn + VZT) - Vn)/1LSB, DNLn = (Vn + 1 -Vn)/1LSB - 1
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PROPRIETARY AND CONFIDENTIAL