
25.4 AD Conversion Characteristics
(VSS = 0.0 V, 4.5 V ≤ VDD ≤ 5.5 V, Topr = 40 to 85°C)
Parameter
Symbol
Condition
Min
Typ.
Max
Unit
Analog reference voltage / Power sup-
ply voltage of analog control circuit
VAREF /
AVDD
VDD
V
Analog input voltage range
VAIN
VSS
VAREF
Power supply current of analog refer-
ence voltage
IREF
VDD = AVDD / VAREF = 5.5 V
VSS = 0.0 V
0.6
1.0
mA
Non-linearity error (Note4)
VDD = AVDD / VAREF = 5.0 V
VSS = 0.0V
89CM42
89CH42
89FM42
89FH42
LSB
±4
±3
Zero point error (Note4)
±4
±3
Full scale error (Note4)
±4
±3
Total error (Note4)
±4
±3
(VSS = 0.0 V, 2.7 V ≤ VDD < 4.5 V, Topr = 40 to 85°C)
Parameter
Symbol
Condition
Min
Typ.
Max
Unit
Analog reference voltage / Power sup-
ply voltage of analog control circuit
VAREF /
AVDD
VDD
V
Analog input voltage range
VAIN
VSS
VAREF
Power supply current of analog refer-
ence voltage
IREF
VDD = AVDD / VAREF = 4.5 V
VSS = 0.0 V
0.5
0.8
mA
Non-linearity error (Note4)
VDD = AVDD / VAREF = 2.7 V
VSS = 0.0V
89CM42
89CH42
89FM42
89FH42
LSB
±4
±3
Zero point error (Note4)
±4
±3
Full scale error (Note4)
±4
±3
Total error (Note4)
±4
±3
(VSS = 0.0 V, 2.2 V ≤ VDD < 2.7 V, Topr = 40 to 85°C)
Parameter
Symbol
Condition
Min
Typ.
Max
Unit
Analog reference voltage / Power sup-
ply voltage of analog control circuit
VAREF /
AVDD
VDD
V
Analog input voltage range
VAIN
VSS
VAREF
Power supply current of analog refer-
ence voltage
IREF
VDD = AVDD / VAREF = 2.7 V
VSS = 0.0 V
0.3
0.5
mA
Non-linearity error (Note4)
VDD = AVDD / VAREF = 2.2 V,
VSS = 0.0 V
89CM42
89CH42
89FM42
89FH42
LSB
±5
±4
Zero point error (Note4)
±5
±4
Full scale error (Note4)
±5
±4
Total error (Note4)
±5
±4
Note 1: The total error includes all errors except a quantization error, and is defined as the maximum deviation from the ideal
conversion line.
Note 2: Conversion times differ with variation in the power supply voltage.
Note 3: The voltage to be input to the AIN input pin must be within the range VAREF to VSS. If a voltage outside this range is input,
converted values will become indeterminate, and converted values of other channels will be affected.
Note 4: AD conversion characteristics differ between TMP89FM42/FH42 and TMP89CM42/CH42.
Note 5: If the AD converter is not used, fix the VAREF/AVDD pin to the VDD level.
TMP89FM42
25. Electrical Characteristics
25.4 AD Conversion Characteristics
Page 406
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