RX21A_15 Datasheet, PDF (104/132 Pages) Renesas Technology Corp – Renesas MCUs

RX21A Group
5. Electrical Characteristics
Item
Input impedance for single-ended input (×4)
Oversampling frequency
Oversampling period
Conversion time
Sampling frequency
SNDR
(Gain: ×1 Input amplitude: 500.0 mV)
Min.
54
3.125
0.32
81.92
4.07
—
—
SNDR
—
(Gain: ×2 Input amplitude: 250.0 mV)
—
SNDR
—
(Gain: ×4 Input amplitude: 125.0 mV)
—
SNDR
—
(Gain: ×8 Input amplitude: 62.5 mV)
—
SNDR
—
(Gain: ×16 Input amplitude: 31.2 mV)
—
SNDR
—
(Gain: ×32 Input amplitude: 14.4 mV)
—
SNDR
—
(Gain: ×64 Input amplitude: 5 mV)
—
Typ.
91
3.125
0.32
—
—
80
85
Max.
—
3.125
0.32
245.76
12.21
—
—
80
—
85
—
78
—
83
—
75
—
80
—
71
—
76
—
64
—
69
—
54
—
59
—
Unit
kΩ
MHz
μs
μs
kHz
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
Test Conditions
Bandwidth = up to
1.7 kHz
Bandwidth = up to
1.7 kHz
Sampling frequency =
12.21 kHz
Clock source:
Resonator
Bandwidth = up to
1.7 kHz
Bandwidth = up to
1.7 kHz
Bandwidth = up to
1.7 kHz
Bandwidth = up to
1.7 kHz
Bandwidth = up to
1.7 kHz
Differential input amplitude
When the gain is ×1,
ANDSiP - ANDSiN = max. ±500 mV (i = 0 to 3)
ANDSiP
Differential input
common mode voltage
+500 mV
–500 mV
Figure 5.55 Differential Input Amplitude
ANDSiN
R01DS0129EJ0110 Rev.1.10
Aug 28, 2014
Page 104 of 132