參數(shù)資料
型號: ST7FLIT19BF1U6TR
廠商: STMICROELECTRONICS
元件分類: 微控制器/微處理器
英文描述: 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, QCC20
封裝: LEAD FREE, QFN-20
文件頁數(shù): 45/153頁
文件大?。?/td> 2862K
代理商: ST7FLIT19BF1U6TR
ST7LITE1xB
139/153
ADC CHARACTERISTICS (Cont’d)
Notes:
1. Data based on characterization results over the whole temperature range, not tested in production.
2. For precise conversion results it is recommended to calibrate the amplifier at the following two points:
– offset at VINmin = 0V
– gain at full scale (for example VIN=430mV)
3. Monotonicity guaranteed if VIN increases or decreases in steps of min. 5mV.
4. Please refer to the Application Note AN1830 for details of TE% vs Vin.
5. Refer to the offset variation in temperature below
Amplifier output offset variation
The offset is quite sensitive to temperature varia-
tions. In order to ensure a good reliability in meas-
urements, the offset must be recalibrated periodi-
cally i.e. during power on or whenever the device
is reset depending on the customer application
and during temperature variation. The table below
gives the typical offset variation over temperature:
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VDD(AMP)
Amplifier operating voltage
3.6
5.5
V
VIN
Amplifier input voltage4)
VDD=3.6V
0
350
mV
VDD=5V
0
500
VOFFSET
1)
Amplifier output offset voltage5)
VDD=5V
200
mV
VSTEP
1)
Step size for monotonicity3)
VDD=3.6V
3.5
mV
VDD=5V
4.89
Linearity 1)
Output Voltage Response
Linear
Gain factor 1) Amplified Analog input Gain2)
8
Vmax 1)
Output Linearity Max Voltage
VINmax = 430mV,
VDD=5V
3.65
V
Vmin 1)
Output Linearity Min Voltage
200
mV
Typical Offset Variation (LSB)
UNIT
-45
-20
+25
+90
°C
-12
-7
-
+13
LSB
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