參數(shù)資料
型號(hào)： ISL21400
廠(chǎng)商： Intersil Corporation
英文描述： Programmable Temperature Slope Voltage Reference(可編程溫度斜率電壓基準(zhǔn))
中文描述： 可編程溫度斜坡電壓基準(zhǔn)（可編程溫度斜率電壓基準(zhǔn)）
文件頁(yè)數(shù)： 1/17頁(yè)
文件大?。?/td> 439K
代理商： ISL21400
1
FN8091.1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2006, 2007. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
ISL21400
Programmable Temperature Slope
Voltage Reference
The ISL21400 features a precision voltage reference
combined with a temperature sensor whose output voltage
varies linearly with temperature. The precision 1.20V
reference has a very low temperature coefficient (tempco),
and its output voltage is scaled by an internal DAC (V
REF
) to
produce a temperature stable output voltage that is
programmable from 0V to 1.20V. The output voltage from the
temperature sensor (V
TS
) is summed with V
REF
to produce
a temperature dependent output voltage.
The slope of the V
TS
portion of the output voltage can be
programmed to be positive or negative in the range
-2.1mV/°C to +2.1mV/°C. A programmable gain amplifier
(PGA) sums the V
TS
and the V
REF
voltages and provides
gains of 1x, 2x, and 4x to scale the output up to 4.8V and the
slope to ±8.4mV/°C.
The V
REF
and V
TS
terms are programmable with 8 bits of
resolution via an I
2
C bus and the values are stored in
non-volatile registers. The PGA gain is also set via the I
2
C
bus and the value is stored in a non-volatile register.
Non-volatile memory storage assures the programmed
settings are retained on power-down, eliminating the need
for software initialization at device power-up.
Temperature Characteristics Curve
Features
Programmable reference voltage
Programmable temperature slope
Programmable Gain Amplifier
Non-volatile storage of programming registers
I
2
C serial interface
2% total accuracy over temperature and V
CC
range
200μA typical active supply current
Operating temperature range = -40°C to +85°C
8 Ld MSOP package
Pb-free plus anneal available (RoHS compliant)
Applications
RF power amplifier bias compensation
LCD bias compensation
Laser diode bias compensation
Sensor bias and linearization
Data acquisition systems
Variable DAC reference
Amplifier biasing
Pinout
ISL21400
(8 LD MSOP)
TOP VIEW
0.0
0.5
1.0
1.5
2.0
2.5
3.0
-40
-15
10
35
60
85
TEMPERATURE (°C)
V
TS = 0
TS = 255
TS = 127
TS = 0
TS = 255
TS = 127
A
V
= 2
A
V
= 1
A2
V
CC
1
2
3
4
SDA
SCL
8
7
6
5
A0
V
OUT
V
SS
A1
Ordering Information
PART NUMBER (Note)
PART MARKING
V
DD
RANGE
(V)
TEMP RANGE
(°C)
PACKAGE
(Pb-free)
PKG.
DWG. #
ISL21400IU8Z
DEW
2.7 to 5.5
-40 to +85
8 Ld MSOP (3.0mm), green mtl
M8.118
ISL21400IU8Z-TK
DEW
2.7 to 5.5
-40 to +85
8 Ld MSOP (3.0mm), green mtl
M8.118
NOTE: Intersil Pb-free products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination
finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at
Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.
Data Sheet
April 24, 2007
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ISL21400IU8Z 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 ISL21400IU8ZISE VAGEFERENCE W/PTAT RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓?fù)浣Y(jié)構(gòu):Shunt References 參考類(lèi)型:Programmable 輸出電壓:1.24 V to 18 V 初始準(zhǔn)確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel
ISL21400IU8Z-TK 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 ISL21400IU8ZISE VAGEFERENCE W/PTAT RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓?fù)浣Y(jié)構(gòu):Shunt References 參考類(lèi)型:Programmable 輸出電壓:1.24 V to 18 V 初始準(zhǔn)確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel
ISL21400USB-EVALZ 功能描述:電源管理IC開(kāi)發(fā)工具 ISL21400USB-EVALZ BRD ROHS COMPLAINT RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類(lèi)型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
ISL21440 制造商:INTERSIL 制造商全稱(chēng):Intersil Corporation 功能描述:Micropower Voltage Reference with Comparator
ISL21440_11 制造商:INTERSIL 制造商全稱(chēng):Intersil Corporation 功能描述:Micropower Voltage Reference with Comparator
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