UPD78361A Datasheet, PDF (71/88 Pages) NEC – 16/8-BIT SINGLE-CHIP MICROCONTROLLER

µPD78361A, 78362A
A/D Converter Characteristics (TA = –40 to +85 ˚C, VDD = +5 V ± 10 %, VSS = AVSS = 0 V,
VDD – 0.5 V ≤ AVDD ≤ VDD)
Parameter
Resolution
Total error^{Note 1}
Symbol
Quantization error
Conversion time
tCONV
Sampling time
tSAMP
Zero-scale error^{Note 1}
Full-scale error^{Note 1}
Nonlinearity error^{Note 1}
Analog input voltage^{Note 2} VIAN
Analog input impedance RAN
Reference voltage
AVREF current
AVDD supply current
A/D converter data
retention current
AVREF
AIREF
AIDD
AIDDDR
Test conditions
4.5 V ≤ AVREF ≤ AVDD
3.4 V ≤ AVREF ≤ AVDD
62.5 ns ≤ tCYK < 80 ns
80 ns ≤ tCYK ≤ 166.6 ns
62.5 ns ≤ tCYK < 80 ns
80 ns ≤ tCYK ≤ 166.6 ns
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
When not sampling
When sampling
Operating mode
STOP mode AVDDDR = 2.5 V
AVDDDR = 5 V ± 10 %
MIN.
10
208
169
24
20
–0.3
3.4
TYP. MAX. Unit
bit
±0.4 %FSR
±0.7 %FSR
±1/2 LSB
tCYK
tCYK
tCYK
tCYK
±1.5 ±2.5 LSB
±1.5 ±4.5 LSB
±1.5 ±2.5 LSB
±1.5 ±4.5 LSB
±1.5 ±2.5 LSB
±1.5 ±4.5 LSB
AVREF + 0.3 V
10
MΩ
Note 3
AVDD
V
1.0
3.0
mA
2.0
6.0
mA
2
10
µA
10
50
µA
Notes 1. The quantization error is excluded.
2. When –0.3 V ≤ VIAN ≤ 0 V, the conversion result becomes 000H.
When 0 V < VIAN < AVREF, the conversion is performed with the 10-bit resolution.
When AVREF ≤ VIAN ≤ +0.3 V, the conversion result becomes 3FFH.
3. The analog input impedance at the time of sampling is the same as the equivalent circuit shown
below. (The values in the diagram are TYP. values; they are not guaranteed values)
Analog input pin
1 kΩ
25 pF
(Input
capacitance
included)
4 pF
71