st7pmc2s6 STMicroelectronics, st7pmc2s6 Datasheet - Page 297

• Manufacturer Part Number: st7pmc2s6
• Description: 8-bit Mcu For Automotive With Nested Interrupts, Flash, 10-bit Adc, Brushless Motor Control, 5 Timers, Spi, Linsci?
• Manufacturer: STMicroelectronics

ST7MC1K2-Auto, ST7MC1K6-Auto, ST7MC2S4-Auto, ST7MC2S6-Auto
10.8
10.8.1
10.8.2
10.8.3
Table 170. OACSR register description (continued)
10-bit A/D converter (ADC)
Introduction
The on-chip analog to digital converter (ADC) peripheral is a 10-bit, successive
approximation converter with internal sample and hold circuitry. This peripheral has up to 16
multiplexed analog input channels (refer to device pin out description) that allow the
peripheral to convert the analog voltage levels from up to 16 different sources.
The result of the conversion is stored in two 8-bit Data Registers. The A/D converter is
controlled through a control/status register.
Main features
The block diagram is shown in
Functional description
Analog references
V
may therefore be impacted by voltage drops and noise on these lines. V
supplied by an intermediate supply between V
voltage range. V
between V
2:0
Bit
3
REF+
10-bit conversion
Up to 16 channels with multiplexed input
2 software-selectable sample times
External positive reference voltage V
Linear successive approximation
Data registers (DR) which contain the results
Conversion complete status flag
Maskable interrupt
On/off bit (to reduce consumption)
HIGHGAIN
and V
Name
-
REF+
REF-
and V
REF-
Gain range selection
Reserved, must be kept cleared
are the high and low level reference voltage pins. Conversion accuracy
This bit must be programmed depending on the application. It can be used to
ensure 35dB open loop gain when high, it must be low when the closed loop gain
is below 20dB for stability reasons.
0: Closed loop gain up to 20dB
1: Closed loop gain more than 20dB
must be tied to V
REF-
pins, with a typical value of 15k .
Figure
128.
SSA
REF+
. An internal resistor bridge is implemented
DDA
can be independent from supply
Function
and V
SSA
to change the conversion
On-chip peripherals
REF+
can be
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