User Manual
752
Rev. 1.1
2019-03-18
TLE984xQX
Microcontroller with LIN and Power Switches for Automotive Applications
10-Bit Analog Digital Converter (ADC1)
24
10-Bit Analog Digital Converter (ADC1)
24.1
Features
The basic function of this block is the digital postprocessing of several analog digitized measurement signals
by means of filtering, level comparison and interrupt generation. The measurement postprocessing block is
built of twelve identical channel units attached to the outputs of the 13-channel 10-bit ADC. It processes
twelve channels, where the channel sequence and prioritization is programmable within a wide range.
Functional Features
• 10 Bit SAR ADC with conversion time of 17 clock cycles
• Programmable clock divider for sequencer and ADC
• 12 individually programmable channels (ch0..ch11):
– 6 or 7 (product variant dependant) HV Channels: VS, VBAT_SENSE, MON1...MON4 or, MON5MON5
(product variant dependant)
– 5 or 6 (product variant dependant) LV Channels: P2.1, P2.2, P2.3, P2.6, P2.7(, P2.0)
• One additional channel, ch12, connected to P2.0 (product variant dependant). This channel is only
programmable in software mode, no calibration and no digital postprocessing are available in this case.
• All channels are fully calibrated and user configurable
• Individually programmable channel prioritization scheme for digital postprocessing (dpp)
• Two independent filter stages with programmable low-pass and time filter characteristics for each
channel
• Two channel configurations:
– Programmable upper- and lower trigger thresholds comprising a fully programmable hysteresis
– Two individually programmable trigger thresholds with limit hysteresis settings
• Individually programmable upper threshold and lower threshold interrupts and status for all channel
thresholds
• Four additional differential channels (build with MON1 to MON4) with postprocessing and interrupt
generation (product variant dependant, only TLE9845QX)
• ADC reference completely integrated
Note:
In case the MONx should be evaluated by the ADC1, it is recommended to add 6.8nF capacitors close
to the MONx pin of the device, in order to build an external RC filter to limit the bandwidth of the input
signal.