UPD70F3714GC-8BS-A Renesas Electronics America, UPD70F3714GC-8BS-A Datasheet - Page 473

• Manufacturer Part Number: UPD70F3714GC-8BS-A
• Description: MCU 32BIT V850ES/LX2 64-LQFP
• Manufacturer: Renesas Electronics America
• Series: V850ES/Ix2r

Specifications of UPD70F3714GC-8BS-A

• Core Processor: RISC
• Core Size: 32-Bit
• Speed: 20MHz
• Connectivity: CSI, UART/USART
• Peripherals: LVD, PWM, WDT
• Number Of I /o: 39
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 6K x 8
• Voltage - Supply (vcc/vdd): 3.5 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

(3) Quantization error
(4) Zero-scale error
When analog values are converted to digital values, a ±1/2 LSB error naturally occurs. In an A/D converter, an
analog input voltage in a range of ±1/2 LSB 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 (1/2 LSB) when the digital output changes from 0……000 to 0……001.
111
011
010
001
000
100
CHAPTER 11 A/D CONVERTERS 0 AND 1
1 ...... 1
0 ...... 0
−1
Figure 11-25. Quantization Error
Figure 11-26. Zero-Scale Error
Zero-scale error
0
1/2 LSB
User’s Manual U17716EJ2V0UD
0
1
Analog input (LSB)
Ideal line
Analog input
2
1/2 LSB
Quantization error
3
AV
REFn
AV
REFn
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