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ST72101G1M1 Datasheet(PDF) 76 Page - STMicroelectronics

Part # ST72101G1M1
Description  8-BIT MCU WITH 4 TO 8K ROM/OTP/EPROM, 256 BYTES RAM, ADC, WDG, SPI AND 1 OR 2 TIMERS
PDF  85 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST72101G1M1 Datasheet(HTML) 76 Page - STMicroelectronics

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ST72101/ST72212/ST72213
7.6 A/D CONVERTER CHARACTERISTICS (ST72212 and ST72213 only)
(TA = -40°C to +125°C and VDD = 5V±10% unless otherwise specified )
*Note:
ADC Accuracy vs. Negative Injection Current:
For Iinj-=0.8mA, the typical leakage induced inside the die is 1.6µA and the effect on the ADC accuracy is
a loss of 1 LSB by 10K
Ω increase of the external analog source impedance.
These measurement results and recommendations take worst case injection conditions into account:
- negative injection
- injection to an Input with analog capability, adjacent to the enabled Analog Input
- at 5V VDD supply, and worst case temperature.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
TSAMPLE
Sample Duration
31.5
1/fCPU
Res
ADC Resolution
fCPU=8MHz
VDD=VDDA=5V
8
bit
DLE
Differential Linearity Error*
±0.6
±1
ILE
Integral Linearity Error*
±2
VAIN
Analog Input Voltage
VSSA
VDDA
V
IADC
Supply current rise
during A/D conversion
fCPU=8MHz
VDD=VDDA=5V
1mA
tSTAB
Stabilization time after ADC enable
30
µs
tCONV
Conversion Time
8
64
µs
1/fCPU
RAIN
Resistance of analog sources
(VAIN)
fCPU=8MHz, T=25°C,
VDD=VDDA=5V
15
ΚΩ
CHOLD
Hold Capacitance
22
pF
RSS
Resistance of sampling switch and
internal trace
2
ΚΩ
Px.x/AINx
RAIN
VAIN
Cpin
5pF
VDD
VT = 0.6V
leakage max.
VT = 0.6V
Cpin
VT
leakage
Chold
SS
Sampling
Switch
SS
RSS
at the pin due
to various junctions
Chold
22 pF
capacitance
= input capacitance
= threshold voltage
= sampling switch
= sample/hold
±1µA
VSS
= leakage current
2
ΚΩ
76



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