UPD78F1001GB-GAF-AX Renesas Electronics America, UPD78F1001GB-GAF-AX Datasheet - Page 574
UPD78F1001GB-GAF-AX
Manufacturer Part Number
UPD78F1001GB-GAF-AX
Description
MCU 16BIT 78K0R/KX3-L 44-LQFP
Manufacturer
Renesas Electronics America
Series
78K0R/Kx3-Lr
Datasheet
1.UPD78F1000GB-GAF-AX.pdf
(1171 pages)
Specifications of UPD78F1001GB-GAF-AX
Core Processor
78K/0R
Core Size
16-Bit
Speed
20MHz
Connectivity
3-Wire SIO, I²C, LIN, UART/USART
Peripherals
DMA, LVD, POR, PWM, WDT
Number Of I /o
33
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
1.5K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 10x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
UPD78F1001GB-GAF-AX
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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78K0R/Kx3-L
13.5 How to Read A/D Converter Characteristics Table
(1) Resolution
(2) Overall error
(3) Quantization error
(4) Zero-scale error
R01UH0106EJ0300 Rev.3.00
Oct 01, 2010
Here, special terms unique to the A/D converter are explained.
This is the minimum analog input voltage that can be identified. That is, the percentage of the analog input voltage
per bit of digital output is called 1LSB (Least Significant Bit). The percentage of 1LSB with respect to the full scale is
expressed by %FSR (Full Scale Range).
1LSB is as follows when the resolution is 10 bits.
1LSB = 1/2
Accuracy has no relation to resolution, but is determined by overall error.
This shows the maximum error value between the actual measured value and the theoretical value.
Zero-scale error, full-scale error, integral linearity error, and differential linearity errors that are combinations of these
express the overall error.
Note that the quantization error is not included in the overall error in the characteristics table.
When analog values are converted to digital values, a ±1/2LSB error naturally occurs. In an A/D converter, an analog
input voltage in a range of ±1/2LSB is converted to the same digital code, so a quantization error cannot be avoided.
Note that the quantization error is not included in the overall error, zero-scale error, full-scale error, integral linearity
error, and differential linearity error in the characteristics table.
This shows the difference between the actual measurement value of the analog input voltage and the theoretical
value (1/2LSB) when the digital output changes from 0......000 to 0......001.
If the actual measurement value is greater than the theoretical value, it shows the difference between the actual
measurement value of the analog input voltage and the theoretical value (3/2LSB) when the digital output changes
from 0……001 to 0……010.
1 ...... 1
0 ...... 0
= 0.098%FSR
Figure 13-16. Overall Error
10
0
= 1/1024
Ideal line
Analog input
Overall
error
AV
REF
1 ...... 1
0......0
Figure 13-17. Quantization Error
0
1/2LSB
CHAPTER 13 A/D CONVERTER
Analog input
1/2LSB
Quantization error
AV
REF
574
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