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| 型号： | ISL21440IRTZ |
| 厂商： | Intersil |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC VREF W/COMPARATOR 8TDFN |
| 标准包装： | 100 |
| 系列： | FGA™ |
| 应用： | 比较器，电压基准 |
| 电流 - 电源： | 460µA |
| 电源电压： | 2 V ~ 11 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-WFDFN 裸露焊盘 |
| 供应商设备封装： | 8-TDFN（3x3） |
| 包装： | 管件 |
Micropower Voltage Reference with Comparator
ISL21440
The ISL21440 is a micropower, FGA? reference and comparator
on a single chip. Drawing less than 1.8μA supply current over the
full operating temperature range, the ISL21440 operates from a
single 2V to 11V supply and can also be used with split bipolar
supplies.
The ISL21440’s on-board reference provides a 1.182V ±0.5%
output. It features programmable hysteresis and TTL/CMOS
compatible outputs that sink and source current. Low Bias
currents permit high value divider resistors for typical circuit
current drains of <2.5μA.
The low supply current makes the ISL21440 ideal for battery
powered devices in battery level or low voltage monitors circuits.
The ISL21440 is a pin-compatible, performance upgrade of both
the LTC1440, LTC1540, MAX921 and MAX931.
Features
? 1.8μA Supply Current Over Full Temperature Range
? Wide Supply Range . . . . . . . . . . . . . . . . . . . . . . . . . . 2V to 11V
? Precision 1.182V ±0.5% Voltage Reference
? Comparator with User Programmable Hysteresis
? Temperature Range . . . . . . . . . . . . . . . . . . . .-40°C to +125°C
? 8 Ld MSOP and 8 Ld TDFN Packages
? Pin Compatible Upgrade to MAX921 and LTC1440
Applications
? Low Battery Detector
? Low Voltage Reset
? Overvoltage Monitor
? Window Comparator
VBAT
2.4M
IN+
IN-
Vdd
+
-
V+
OUT
LoBAT-
1.190
1.188
1.186
1.184
V+ = 5V
V+ = 3V
1.8M
20k
HYST
REF
ISL21440
1.182
1.180
1.178
V+ = 2V
1.176
2.4M
V-
GND
1.174
1.172
-40
-20
0
20
40
60
80
100
120
LOW BATTERY DETECTOR
FIGURE 1. TYPICAL APPLICATION
TEMPERATURE (°C)
FIGURE 2. REFERENCE VOLTAGE vs TEMPERATURE
February 23, 2011
FN6532.2
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas Inc. 2009-2011. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.
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相关代理商/技术参数 |
参数描述 |
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| ISL21440IRTZ-T13 | 功能描述:基准电压& 基准电流 ISL21440IRTZ MICRO PWR FGAFERENCE 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 |
| ISL21440IUZ | 功能描述:基准电压& 基准电流 ISL21440IUZ MICRO PWR FGAFERENCE 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 |
| ISL21440IUZ-T13 | 功能描述:基准电压& 基准电流 ISL21440IUZ MICRO PWR FGAFERENCE 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 |
| ISL22102 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:32 Tap, Push-button, Dual Audio Logarithmic Potentiometer with Buffer Amplifiers and Audio Detection |
| ISL22102IR20Z | 功能描述:数字电位计 IC 32 TAP PUSH-BUTTON DL AUD LOG W/BUFR RoHS:否 制造商:Maxim Integrated 电阻:200 Ohms 温度系数:35 PPM / C 容差:25 % POT 数量:Dual 每 POT 分接头:256 弧刷存储器:Volatile 缓冲刷: 数字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作电源电压:1.7 V to 5.5 V 电源电流:27 uA 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:TQFN-16 封装:Reel |
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