78m6618-imr/f/p Maxim Integrated Products, Inc., 78m6618-imr/f/p Datasheet - Page 20

• Manufacturer Part Number: 78m6618-imr/f/p
• Description: Octal Power And Energy Measurement Ic
• Manufacturer: Maxim Integrated Products, Inc.

78M6618 Data Sheet
2.4.14 VREF
Table 18
a
20
Parameter
VREF output voltage, VREF(22)
VREF chop step
VREF power supply sensitivity
VREF input impedance
VREF output impedance
VNOM definition
VNOM temperature coefficients:
VREF(T) deviation from VNOM(T)
VREF aging
This relationship describes the nominal behavior of VREF at different temperatures.
VREF
ΔVREF / ΔV3P3A
TC1
TC2
VNOM
(
T
shows the performance specifications for VREF. Unless otherwise specified, VREF_DIS = 0.
)
−
VNOM
(
T
)
a
(
T
)
max(
T
10
−
Table 18: VREF Performance Specifications
6
22
,
40
)
Ta = 22ºC
V3P3A = 3.0 to 3.6 V
VREF_DIS = 1,
VREF = 1.3 to 1.7 V
CAL =1,
I
VNOM
LOAD
= 10 µA, -10 µA
Condition
(
T
)
=
VREF
(
22
)
+
(
T
−
1.193
22
Min
-1.5
100
-40
3.18·(52.46-TRIMT)
)
TC
1
+
(
-0.444
T
1.195
Typ
±25
−
22
)
2
TC
1.197
Max
+40
1.5
2.5
2
40
DS_6618_005
PPM/ºC
Rev. 1.3
µV/°C
mV/V
µV/ºC
PPM/
Unit
year
mV
kΩ
kΩ
V
V
2