參數(shù)資料
型號(hào): 71M6541F-IGTR/F
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: 模擬信號(hào)調(diào)理
英文描述: SPECIALTY ANALOG CIRCUIT, PQFP64
封裝: LEAD FREE, LQFP-64
文件頁數(shù): 55/165頁
文件大?。?/td> 2208K
代理商: 71M6541F-IGTR/F
148
2008–2011 Teridian Semiconductor Corporation
v1.1
6.4.14 VREF
Table 109 shows the performance specifications for the ADC reference voltage (VREF).
Table 109: VREF Performance Specifications
Parameter
Condition
Min
Typ
Max
Unit
VREF output voltage,
VREF(22)
TA = 22 C
1.193
1.195
1.197
V
VREF output voltage,
VREF(22)
PLL_FAST=0
1.195
V
VREF output impedance
VREF_CAL = 1,
ILOAD = 10 A, -10 A
3.2
VREF power supply sensitivity
ΔVREF / ΔV3P3A
V3P3A = 3.0 to 3.6 V
-1.5
1.5
mV/V
VREF input impedance
VREF_DIS = 1,
VREF = 1.3 V to 1.7 V
100
VREF chop step, trimmed
VREF(CHOP=01)
VREF(CHOP=10)
-10
0
10
mV
VNOM definition (see note 2)
2
)
22
(
1
)
22
(
)
22
(
)
(
2 TC
T
TC
T
VREF
T
VNOM
+
+
=
V
VNOM temperature
coefficients:
TC1 =
TC2 =
TRIMT
95
.
4
275
TRIMT
+
00028
.
0
557
.
0
V/°C
2
VREF(T) deviation from
VNOM(T) (see note 1):
62
10
)
(
)
(
)
(
6
T
VNOM
T
VNOM
T
VREF
-40
+40
ppm/°C
VREF aging
±25
ppm/
year
Notes:
1.
Guaranteed by design; not production tested.
2.
This relationship describes the nominal behavior of VREF at different temperatures, as
governed by a second order polynomial of 1
st and 2nd order coefficients TC1 and TC2.
3.
For the parameters in this table, unless otherwise specified, VREF_DIS = 0, PLL_FAST=1
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