
Electrical characteristics
MPC5634M Microcontroller Data Sheet, Rev. 9
Freescale Semiconductor
83
4 Exceeding limit may cause conversion error on stressed channels and on unstressed channels. Transitions within
the limit do not affect device reliability or cause permanent damage.
5 Input must be current limited to the value specified. To determine the value of the required current-limiting resistor,
calculate resistance values using VPOSCLAMP = VDDA + 0.5 V and VNEGCLAMP = – 0.3 V, then use the larger of the
calculated values.
6 Condition applies to two adjacent pins at injection limits.
7 Performance expected with production silicon.
8 All channels have same 10 k <Rs<100k; Channel under test has Rs=10 k; IINJ=IINJMAX,IINJMIN.
9 TUE is tested by averaging 10 samples.
10 TUE is tested by averaging three samples.
11 These values can be significantly improved by using three samples of averaging. Input frequency of 1 kHz was used
as the reference for the Signal to Noise Ratio.
12 Variable gain is controlled by setting the PRE_GAIN bits in the ADC_ACR1-8 registers to select a gain factor of 1,
2, or 4. Settings are for differential input only. Tested at 1 gain. Values for other settings are guaranteed by as
indicated.
13 At VRH – VRL = 5.12 V, one LSB = 1.25 mV.
14 Guaranteed 10-bit monotonicity.
15 Voltages between VRL and VRH will not cause damage to the pins. However, they may not be converted accurately
if the differential voltage is above the maximum differential voltage. In addition, conversion errors may occur if the
common mode voltage of the differential signal violates the Differential Input common mode voltage specification.