ST7FLITE29 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
ST7FLITE29
STMicroelectronics
'ST7FLITE29' PDF : 133 Pages View PDF
ST7LITE2
ADC CHARACTERISTICS (Cont’d)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VDD(AMP)
VIN
VOFFSET
VSTEP
Linearity
Gain factor
Amplifier operating voltage
Amplifier input voltage4)
Amplifier output offset voltage5)
Step size for monotonicity3)
Output Voltage Response
Amplified Analog input Gain2)
VDD=3.6V
VDD=5V
VDD=5V
VDD=3.6V
VDD=5V
3.6
5.5
V
0
350
mV
0
500
200
mV
3.5
mV
4.89
Linear
8
Vmax
Vmin
Output Linearity Max Voltage
Output Linearity Min Voltage
VINmax = 430mV,
VDD=5V
3.65
3.94
V
200
mV
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
13.11.1 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:
Typical Offset Variation (LSB)
-45
-20
+25
+90
-12
-7
-
+13
UNIT
°C
LSB
118/133
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