71m6543h-igtr/f Maxim Integrated Products, Inc., 71m6543h-igtr/f Datasheet - Page 141
71m6543h-igtr/f
Manufacturer Part Number
71m6543h-igtr/f
Description
Energy Meter Ic
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
1.71M6543H-IGTRF.pdf
(157 pages)
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6.4.14 71M6543F/H VREF
Table 102
v1.0
Parameter
VREF output voltage,
VREF(22)
VREF output voltage,
VREF(22)
VREF chop step, trimmed
VREF power supply sensitivity
VREF input impedance
VREF output impedance
VNOM definition (see note 2)
VNOM temperature
coefficients:
VREF(T) deviation from
VNOM(T) (see note 1):
VNOM temperature
coefficients:
VREF(T) deviation from
VNOM(T) (see note 1):
VREF aging
Notes:
VREF
VREF
1. Guaranteed by design; not production tested.
2. This relationship describes the nominal behavior of VREF at different temperatures, as
3. For the parameters in this table, unless otherwise specified, VREF_DIS = 0, PLL_FAST=1
TC1 =
TC2 =
ΔVREF / ΔV3P3A
TC1 =
TC2 =
VNOM
VNOM
(
(
T
T
)
)
governed by a second order polynomial of 1
−
−
shows the performance specifications for the 71M6543F/H ADC reference voltage (VREF).
VNOM
VNOM
If temperature characterization trim information is not available (71M6543F, 0.5%)
(
(
If temperature characterization trim information is available (71M6543H, 0.1%)
T
T
)
)
(
(
T
T
)
)
10
10
Table 102: 71M6543F/H VREF Performance Specifications
62
62
6
6
© 2008–2011 Teridian Semiconductor Corporation
T
PLL_FAST=0
VREF(CHOP=01) −
VREF(CHOP=10)
V3P3A = 3.0 to 3.6 V
VREF_DIS = 1,
VREF = 1.3 V to 1.7 V
VREF_CAL = 1,
I
VNOM
LOAD
A
= 22 ºC
35.091+0.01764∙TRIMT+1.587∙(TRIMBGB − TRIMBGD)
= 10 µA, -10 µA
(
T
Condition
)
=
VREF
−
−0.557 − 2.8 ∙ 10
. 0
st
557
275
and 2
(
22
)
+
− 95
+
nd
. 0
. 4
(
T
order coefficients TC1 and TC2.
00028
−
⋅
22
TRIMT
−4
1.193
)
Min
-1.5
100
-10
TC
-10
-40
⋅
∙
TRIMT
1
+
(
T
1.195
1.195
−
Typ
±25
22
71M6543F/H Data Sheet
)
2
TC
1.197
Max
2
+10
+40
1.5
3.2
10
ppm/°C
ppm/°C
µV/°C
µV/°C
µV/°C
µV/°C
mV/V
ppm/
Unit
year
mV
kΩ
kΩ
V
V
V
141
2
2
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