MB88111 Datasheet, PDF (16/26 Pages) Fujitsu Component Limited. – A/D Converter (With 24-Channel Input at 10-bit Resolution)

MB88111
(2) Analog section
Parameter
(AVCC, VCC = +3.5 V to +5.5 V (VCC ≥ AVCC), VSS = AGND = 0 V, Ta = –40°C to +105°C)
Pin name Symbol Conditions
Min.
Value
Typ.
Unit
Max.
Resolution
—
—
—
10
— bits
Monotonic increase
—
—
—
10
— bits
Linearity error
—
—
—
—
±1 LSB
Differential linearity error AN0 to AN23 —
—
—
—
±1 LSB
Full-scale transition error
—
—
—
—
±1/2 LSB
Zero-transition error
—
—
—
—
±1/2 LSB
Total error
—
—
—
—
±2 LSB
Conversion time
—
—
CCLK = 1 MHz
—
—
50
µs
Input clock frequency
CCLK
—
—
800
1000
1200 KHz
Supply current
AVCC
IA
—
—
3.0
6.0 mA
Reference voltage supply
current
AVRH
IR
—
—
150
300 µA
AVRH
Analog reference voltage
AVRL
—
—
0.8 AVCC
—
AVCC
V
—
—
0
—
0.2 AVCC V
Analog input voltage
—
Multiplexer OFF-leakage ^{AN0 to AN23}
current
—
—
AVRL
—
AVRH V
—
–200
—
200 nA
• No missing code is guaranteed.
Notes: • If the output impedance of the external input is too high, the analog voltage sampling time may be
insufficient.
• In the power-on sequence, turn the power supply for the digital system first before turning that for the
analog system on.
Analog input equivalent circuit
Analog input
R ON1
⋅ RON1 = About 1.5 kΩ
⋅ RON2 =About 1.5 kΩ
⋅ C0 =About 15 pF
R ON2
Note: The above values are reference values.
Comparator
C0
16