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| 型号： | LM385PS-1.2 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 基准电压源/电流源 |
| 英文描述： | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.235 V, PDSO8 |
| 封装： | SOP-8 |
| 文件页数： | 1/13页 |
| 文件大小： | 257K |
| 代理商： | LM385PS-1.2 |
LM285-1.2, LM385-1.2, LM385B-1.2
MICROPOWER VOLTAGE REFERENCES
SLVS075E – APRIL 1989 – REVISED FEBRUARY 2002
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D Operating Current Range
– LM285 . . . 10
A to 20 mA
– LM385 . . . 15
A to 20 mA
– LM385B ...15
A to 20 mA
D 1% and 2% Initial Voltage Tolerance
D Reference Impedance
– LM385 ...1
Max at 25°C
– All Devices . . . 1.5
Max Over Full
Temperature Range
D Very Low Power Consumption
D Applications
– Portable Meter References
– Portable Test Instruments
– Battery-Operated Systems
– Current-Loop Instrumentation
– Panel Meters
D Designed to be Interchangeable With
National LM285-1.2 and LM385-1.2
description
These micropower, two-terminal, band-gap voltage references operate over a 10-
A to 20-mA current range
and feature exceptionally low dynamic impedance and good temperature stability. On-chip trimming provides
tight voltage tolerance. The band-gap reference for these devices has low noise and long-term stability.
The design makes these devices exceptionally tolerant of capacitive loading and, thus, easier to use in most
reference applications. The wide dynamic operating temperature range accommodates varying current
supplies, with excellent regulation.
The extremely low power drain of this series makes them useful for micropower circuitry. These voltage
references can be used to make portable meters, regulators, or general-purpose analog circuitry, with battery
life approaching shelf life. The wide operating current range allows them to replace older references with
tighter-tolerance parts.
The LM285-1.2 is characterized for operation from –40
°C to 85°C. The LM385-1.2 and LM385B-1.2 are
characterized for operation from 0
°C to 70°C.
AVAILABLE OPTIONS
VZ
PACKAGED DEVICES
TA
VZ
TOLERANCE
SMALL OUTLINE
(D, PS)
PLASTIC
(LP)
0
°C to 70°C
2%
LM385D-1.2
LM385PS-1.2
LM385LP-1.2
1%
LM385BD-1.2
LM385BLP-1.2
–40
°C to 85°C
1%
LM285D-1.2
LM285LP-1.2
The D and LP packages are available taped and reeled. Add the suffix R to the device type
(e.g., LM385DR-1-2). The PS package is only available taped and reeled.
For ordering purposes, the decimal point in the part number must be replaced with a
hyphen (i.e., show the -1.2 suffix as “-1-2”).
Copyright
2002, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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2
3
4
8
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6
5
NC
ANODE
CATHODE
NC
LM285-1.2, LM385B-1.2 ...D PACKAGE
LM385-1.2 ...D OR PS PACKAGE
(TOP VIEW)
NC – No internal connection
LP PACKAGE
(TOP VIEW)
ANODE
CATHODE
NC
NC – No internal connection
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LM385PSR-1-2 | 功能描述:基准电压& 基准电流 Micropower Voltage Reference 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 |
| LM385PSRE4-1-2 | 功能描述:基准电压& 基准电流 Micropower Voltage Reference 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 |
| LM385PSRG4-1-2 | 功能描述:基准电压& 基准电流 MicroPwr Vltg Ref 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 |
| LM385PW-1-2 | 功能描述:基准电压& 基准电流 Micropower Voltage Reference 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 |
| LM385PW-2-5 | 功能描述:基准电压& 基准电流 Micropower Voltage Reference 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 |
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