UPD70F3740GC-UEU-AX Renesas Electronics America, UPD70F3740GC-UEU-AX Datasheet - Page 454

• Manufacturer Part Number: UPD70F3740GC-UEU-AX
• Description: MCU 32BIT V850ES/JX3 100-LQFP
• Manufacturer: Renesas Electronics America
• Series: V850ES/Jx3r

Specifications of UPD70F3740GC-UEU-AX

• Core Processor: RISC
• Core Size: 32-Bit
• Speed: 32MHz
• Connectivity: CSI, EBI/EMI, I²C, UART/USART
• Peripherals: DMA, LVD, PWM, WDT
• Number Of I /o: 84
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 40K x 8
• Voltage - Supply (vcc/vdd): 2.85 V ~ 3.6 V
• Data Converters: A/D 12x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

V850ES/JG3
13.7 How to Read A/D Converter Characteristics Table
R01UH0015EJ0300 Rev.3.00
Sep 30, 2010
This section describes the terms related to the A/D converter.
(1) Resolution
(2) Overall error
The minimum analog input voltage that can be recognized, i.e., the ratio of an analog input voltage to 1 bit of digital
output is called 1 LSB (least significant bit). The ratio of 1 LSB to the full scale is expressed as %FSR (full-scale
range). %FSR is the ratio of a range of convertible analog input voltages expressed as a percentage, and can be
expressed as follows, independently of the resolution.
When the resolution is 10 bits, 1 LSB is as follows:
The accuracy is determined by the overall error, independently of the resolution.
This is the maximum value of the difference between an actually measured value and a theoretical value.
It is a total of zero-scale error, full-scale error, linearity error, and a combination of these errors.
The overall error in the characteristics table does not include the quantization error.
1%FSR = (Maximum value of convertible analog input voltage – Minimum value of convertible analog
1 LSB = 1/2
= 0.098%FSR
= (AV
= AV
input voltage)/100
10
REF0
= 1/1,024
REF0
/100
− 0)/100
1 ...... 1
0 ...... 0
0
Ideal line
Figure 13-16. Overall Error
Analog input
Overall error
AV
REF0
CHAPTER 13 A/D CONVERTER
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