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参数资料
| 型号： | ISL21400 |
| 厂商： | Intersil Corporation |
| 英文描述： | Programmable Temperature Slope Voltage Reference(可编程温度斜率电压基准) |
| 中文描述： | 可编程温度斜坡电压基准（可编程温度斜率电压基准） |
| 文件页数： | 1/17页 |
| 文件大小： | 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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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL21400IU8Z | 功能描述:基准电压& 基准电流 ISL21400IU8ZISE VAGEFERENCE W/PTAT RoHS:否 制造商:STMicroelectronics 产品:Voltage References 拓扑结构:Shunt References 参考类型:Programmable 输出电压:1.24 V to 18 V 初始准确度:0.25 % 平均温度系数（典型值）:100 PPM / C 串联 VREF - 输入电压（最大值）: 串联 VREF - 输入电压（最小值）: 分流电流（最大值）:60 mA 最大工作温度:+ 125 C 封装 / 箱体:SOT-23-3L 封装:Reel |
| ISL21400IU8Z-TK | 功能描述:基准电压& 基准电流 ISL21400IU8ZISE VAGEFERENCE W/PTAT RoHS:否 制造商:STMicroelectronics 产品:Voltage References 拓扑结构:Shunt References 参考类型:Programmable 输出电压:1.24 V to 18 V 初始准确度:0.25 % 平均温度系数（典型值）:100 PPM / C 串联 VREF - 输入电压（最大值）: 串联 VREF - 输入电压（最小值）: 分流电流（最大值）:60 mA 最大工作温度:+ 125 C 封装 / 箱体:SOT-23-3L 封装:Reel |
| ISL21400USB-EVALZ | 功能描述:电源管理IC开发工具 ISL21400USB-EVALZ BRD ROHS COMPLAINT RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| ISL21440 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Micropower Voltage Reference with Comparator |
| ISL21440_11 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Micropower Voltage Reference with Comparator |
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