PDS_6xxx_010
71M6xxx Data Sheet
4.4.5 VREF Performance Specifications
Table 10 shows the performance specifications for the ADC reference voltage (VREF).
Table 10: VREF Performance Specifications
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
71M6201, 71M6203,
71M6113: TA = +22°C
1.193
1.195
1.197
VREF Output Voltage
V
71M6601, 71M6603,
71M6103: TA = +22°C
1.180
1.195
8
1.210
I
LOAD = 10µA, -10µA
VREF Output Impedance
kΩ
on TMUXOUT
VCC = 2.8V to 3.6V
VCC = 2.5V to 3.6V
-1.5
-2
+1.5
+2
VREF Power-Supply Sensitivity:
ΔVREF/ΔVCC
mV/V
VREF(CROSS = 1) -
VREF(CROSS = 0)
VREF Chop Step (Trimmed)
VNOM Definition
-22
0
+22
mV
V
VNOM(T) = VREF(22) + (T - 22)TC1 + (T - 22)2TC2
71M6201 AND 71M6203 (0.2% ACCURACY CLASS)
TC1 = 0.0538 x TRIMT + 1.587(TRIMBGB - TRIMBGD) +
27.279
µV/°C
VNOM Temperature Coefficients:
TC1, TC2
TC2 = -0.433 - TRIMT x 0.000854
µV/°C2
VREF(T) −VNOM (T) 106
-15
VREF(T) Deviation from VNOM(T) (Note 1)
+15
+50
ppm/°C
VNOM (T)
62
71M6113 (0.5% ACCURACY CLASS)
TC1 = 251 - TRIMT x 4.60
µV/°C
VNOM Temperature Coefficients:
TC1, TC2
TC2 = -0.433 - TRIMT x 0.000854
µV/°C2
VREF(T) −VNOM (T) 106
VREF(T) Deviation from VNOM(T) (Note 1)
-50
ppm/°C
VNOM (T)
62
71M6601, 71M6603, AND 71M6103 (1% ACCURACY CLASS)
TC1 = -34.8
µV/°C
VNOM Temperature Coefficients:
TC1, TC2
TC2 = -0.599
µV/°C2
VREF(T) −VNOM (T) 106
VNOM (T) 45
VREF(T) Deviation from VNOM(T) (Note 1)
-100
+100
ppm/°C
Note 1: Guaranteed by design; not production tested.
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