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MB9AF112K Datasheet(PDF) 72 Page - SPANSION

Part # MB9AF112K
Description  This document states the current technical specifications regarding
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MB9AF112K Datasheet(HTML) 72 Page - SPANSION

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D a t a S h e e t
February 20, 2015, MB9A110K-DS706-00030-2v0-E
69
CONFIDENTIAL
5.
12-bit A/D Converter
Electrical characteristics for the A/D converter
(Vcc = AVcc = 2.7V to 5.5V, Vss = AVss = 0V, Ta = - 40°C to + 105°C)
Parameter
Symbol
Pin
name
Value
Unit
Remarks
Min
Typ
Max
Resolution
-
-
-
-
12
bit
Integral nonlinearity
-
-
- 4.5
-
+ 4.5
LSB
AVRH = 2.7V to 5.5V
Differential nonlinearity
-
-
-2.5
-
+ 2.5
LSB
Zero transition voltage
VZT
ANxx
- 20
-
+ 20
mV
Full-scale transition
voltage
VFST
ANxx
AVRH -
20
-
AVRH + 20 mV
Conversion time
-
-
1.0*
1
-
-
μs
AVcc ≥ 4.5V
1.2*
1
-
-
AVcc < 4.5V
Sampling time
Ts
-
*2
-
-
ns
AVcc ≥ 4.5V
*2
-
-
AVcc < 4.5V
Compare clock cycle*
3
Tcck
-
50
-
2000
ns
State transition time to
operation permission
Tstt
-
-
-
1.0
μs
Analog input capacity
CAIN
-
-
-
12.9
pF
Analog input resistance
RAIN
-
-
-
2
kΩ
AVcc ≥ 4.5V
3.8
AVcc < 4.5V
Interchannel disparity
-
-
-
-
4
LSB
Analog port input
current
-
ANxx
-
-
5
μA
Analog input voltage
-
ANxx
AVSS
-
AVRH
V
Reference voltage
-
AVRH
2.7
-
AVCC
V
*1 : Conversion time is the value of sampling time (Ts) + compare time (Tc).
The condition of the minimum conversion time is the following.
AVcc ≥ 4.5V, HCLK=40 MHz
sampling time: 300ns, compare time: 700 ns
AVcc < 4.5V, HCLK=40 MHz
sampling time: 500ns, compare time: 700 ns
Ensure that it satisfies the value of sampling time (Ts) and compare clock cycle (Tcck).
For setting*
4 of sampling time and compare clock cycle, see "CHAPTER 1-1:A/D Converter" in "FM3
Family PERIPHERAL MANUAL Analog Macro Part".
The A/D Converter register is set at APB bus clock timing. The sampling clock and compare clock are set at
Base clock (HCLK).
About the APB bus number which the A/D Converter is connected to, see "Block Diagram" in this data
sheet.
*2 : A necessary sampling time changes by external impedance.
Ensure that it set the sampling time to satisfy (Equation 1).
*3 : Compare time (Tc) is the value of (Equation 2).



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