UPD78320 Datasheet, PDF (71/88 Pages) NEC – 16/8-BIT SINGLE-CHIP MICROCONTROLLER

µPD78320, 78322
A/D CONVERTER CHARACTERISTICS (TA = –10 to +70 °C, VDD = +5 V ±10 %, VSS = AVSS = 0 V,
VDD – 0.5 V ≤ AVDD ≤ VDD)
Parameter
Resolution
Total error ^{Note 1}
Quantization error
Conversion time
Sampling time
Zero scale error ^{Note 1}
Full scale error ^{Note 1}
Non-linear error ^{Note 1}
Analog input voltage ^{Note 2}
Reference voltage
AVREF current
AVDD supply current
A/D converter data
retention current
Symbol
Test Conditions
4.5 V ≤ AVREF ≤ AVDD
3.4 V ≤ AVREF ≤ AVDD
MIN.
10
tCONV
tSAMP
VIAN
AVREF
AIREF
AIDD
AIDDR
4.5 V ≤ AVREF ≤ AVDD
3.4 V ≤ AVREF ≤ AVDD
4.5 V ≤ AVREF ≤ AVDD
3.4 V ≤ AVREF ≤ AVDD
4.5 V ≤ AVREF ≤ AVDD
3.4 V ≤ AVREF ≤ AVDD
144
24
–0.3
3.4
STOP mode
AVDDR = 2.5 V
AVDDR = 5 V ±10 %
TYP.
±1.5
±1.5
±1.5
±1.5
±1.5
±1.5
1.0
2.0
2.0
10
MAX.
±0.4
±0.7
±1/2
±2.5
±4.5
±2.5
±4.5
±2.5
±4.5
AVDD
AVDD
3.0
6.0
10
50
Unit
bit
%FSR
%FSR
LSB
tCYK
tCYK
LSB
LSB
LSB
LSB
LSB
LSB
V
V
mA
mA
µA
µA
Notes
1. Quantization error excluded.
2. When –0.3 V ≤ VIAN ≤ 0 V, the conversion result becomes 000H.
When 0 V < VIAN < AVREF, the conversion is performed at a resolution of 10 bits.
When AVREF ≤ VIAN ≤ AVDD, the conversion result is 3FFH.
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