71m6545h-igtr/f Maxim Integrated Products, Inc., 71m6545h-igtr/f Datasheet - Page 121
71m6545h-igtr/f
Manufacturer Part Number
71m6545h-igtr/f
Description
Metrology Processors
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
1.71M6545H-IGTRF.pdf
(134 pages)
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PDS_6545_009
6.4.11 71M6545/H VREF
Table 90
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 71M6545/H ADC reference voltage (VREF).
−
−
If temperature characterization trim information is not available (71M6545H , 0.5%)
VNOM
VNOM
(
(
If temperature characterization trim information is available (71M6545H, 0.1%)
T
T
)
)
(
(
T
T
)
)
10
10
62
62
Table 90: 71M6545/H VREF Performance Specifications
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
TC
-10
-10
-40
⋅
∙
TRIMT
1
+
(
T
1.195
1.195
−
Typ
±25
22
Data Sheet 71M6545/H
)
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
121
2
2
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