參數(shù)資料
型號(hào): LMC6442
廠商: National Semiconductor Corporation
英文描述: Dual Micropower Rail-to-Rail Output Single Supply Operational Amplifier
中文描述: 雙微軌至軌輸出單電源運(yùn)算放大器
文件頁數(shù): 1/15頁
文件大?。?/td> 553K
代理商: LMC6442
LMC6442
Dual Micropower Rail-to-Rail Output Single Supply
Operational Amplifier
General Description
The LMC6442 is ideal for battery powered systems, where
very low supply current (less than one microamp per ampli-
fier) and Rail-to-Rail output swing is required. It is character-
ized for 2.2V to 10V operation, and at 2.2V supply, the
LMC6442 is ideal for single (Li-Ion) or two cell (NiCad or al-
kaline) battery systems.
The LMC6442 is designed for battery powered systems that
require long service life through low supply current, such as
smoke and gas detectors, and pager or personal communi-
cations systems.
Operation from single supply is enhanced by the wide com-
mon mode input voltage range which includes the ground (or
negative supply) for ground sensing applications. Very low
(5fA, typical) input bias current and near constant supply cur-
rent over supply voltage enhance the LMC6442’s perfor-
mance near the end-of-life battery voltage.
Designed for closed loop gains of greater than plus two (or
minus one), the amplifier has typically 9.5 KHz GBWP (Gain
Bandwidth Product). Unity gain can be used with a simple
compensation circuit, which also allows capacitive loads of
up to 300 pF to be driven, as described in the Application
Notes section.
For compact assembly the LMC6442 is available in the
MSOP 8 pin package, about one half the size required by the
SOIC 8 pin package. 8 pin DIP and 8 pin SOIC are also
available.
Key Specifications
Features
(Typical, V
S
= 2.2V)
n
Output Swing to within 30 mV of supply rail
High voltage gain
Gain Bandwidth Product
Guaranteed for:
Low Supply Current
Input Voltage Range
Power consumption
Stable for A
V
+2 or A
V
1
n
103 dB
9.5 KHz
n
n
2.2V, 5V, 10V
0.95 μA/Amplifier
0.3V to V
+
-0.9V
2.1 μW/Amplifier
n
n
n
n
Applications
n
Portable instruments
n
Smoke/gas/CO/fire detectors
n
Pagers/cell phones
n
Instrumentation
n
Thermostats
n
Occupancy sensors
n
Cameras
n
Active badges
Connection Diagram
Ordering Information
Package
Temperature Range
NSC
Drawing
M08A
Supplied
AS
Rails
2.5K
Tape
and
Reel
Package Marking
Industrial 40C to +85C
LMC6442AIM, LMC6442IM
Military 55C to +125C
-
8-pin SO-8
LMC6442AIM
LMC6442IM
LMC6442AIMX, LMC6442IMX
-
M08A
DS100064-40
Top View
September 1997
L
1999 National Semiconductor Corporation
DS100064
www.national.com
相關(guān)PDF資料
PDF描述
LMC6442AIM Dual Micropower Rail-to-Rail Output Single Supply Operational Amplifier
LMC6442AIMX Dual Micropower Rail-to-Rail Output Single Supply Operational Amplifier
LMC6442IM Dual Micropower Rail-to-Rail Output Single Supply Operational Amplifier
LMC6442IMX CAP, 0.1UF 50V CERM CHIP, 0805 Z5U
LMV341 Single with Shutdown/Dual/Quad General Purpose, 2.7V, Rail-to-Rail Output, 125∑C, Operational Amplifiers
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