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參數(shù)資料
| 型號： | ISL21400 |
| 廠商： | Intersil Corporation |
| 英文描述： | Programmable Temperature Slope Voltage Reference(可編程溫度斜率電壓基準) |
| 中文描述： | 可編程溫度斜坡電壓基準（可編程溫度斜率電壓基準） |
| 文件頁數(shù)： | 7/17頁 |
| 文件大小： | 439K |
| 代理商： | ISL21400 |
7
FN8091.1
April 24, 2007
3. This parameter is not 100% tested.
4. Cb = total capacitance of one bus line in pF.
5. t
WC
is the time from a valid stop condition at the end of a write sequence to the end of the self-timed internal nonvolatile write cycle. It is the
minimum cycle time to be allowed for any nonvolatile write by the user.
6. Over the specified temperature range. Temperature slope (TS) is measured by the box method whereby the change in V
OUT
is divided by the
temperature range; in this case, -40°C to +85°C = +125°C. TS
1
, TS
2
, TS
3
=.
(
)
–
–
7. Given by PSRR (dB) = 20 * log
10
(
Δ
Vout/
Δ
V
CC
) at DC.
8. Test +25°C and +85°C only.
9. Total error of Equation 1 @ A
V
=1, K = -2.1mV/°C, V
REF
= 1.20V, m = 255, n = 255 to 0, V
CC
= 3.0V.
10. Over the specified temperature range. Temperature slope (TS) is measured by the box method whereby the change in V
OUT
is divided by the
temperature range. Incremental TS is the temperature slope at m = 255 minus the temperature slope at m = 0 divided by 255 with A
V
= 1, n = 255
V
Tmin
–
m
255
=
11. Temperature Slope Non- linearity is measured over the specified temperature range. The actual change in output voltage is subtracted from the
expected change in output voltage, and then divided by the expected change to normalize before converting to percent.
T
(
S
Δ
T
)
(
)
Δ
VOUT
–
y
12. For codes n = 8 to 255
13. Guaranteed monotonic
14. t
WC
is the time from a valid STOP condition at the end of a Write sequence of I
2
C serial interface, to the end of the self-timed internal nonvolatile
write cycle.
15.
θ
JA
is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
TS
-------------------------------------------------------------------------------
Tmax
)
=
V
OUT
TE
(
)
V
measured
------------------------------------------------------------------------------------------------------------
x100%
(
)
V
Equation1
(
)
–
OUT
=
TS4
)
------------------------------------–
V
Tmin
-------------------------------------------------------------------------------
(
)
V
Tmax
(
)
–
–
Tmin
m
0
=
–
255
÷
=
TSNL
---------------------------------------------------------
x100%; y
1 2 3
=
=
Typical Performance Curves
FIGURE 1. V
OUT
vs TEMPERATURE (A
V
= 1, 2)
FIGURE 2. V
OUT
vs TEMPERATURE (A
V
= 4)
0.0
0.5
1.0
1.5
2.0
2.5
3.0
-40
-15
10
35
60
85
TEMPERATURE (°C)
V
R
TS = 0
TS = 255
TS = 127
TS = 0
TS = 255
TS = 127
A
V
= 2
A
V
= 1
3.0
3.5
4.0
4.5
5.0
5.5
6.0
-40
-15
10
35
60
85
TEMPERATURE (°C)
V
R
A
V
= 4
TS = 0
TS = 255
TS = 127
ISL21400
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