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Details, datasheet, quote on part number:LMC6442IMX
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| Part: | LMC6442IMX |
| Category: | Analog & Mixed-Signal Processing => Amplifiers => Operational Amplifiers => Low Voltage |
| Description: | LMC6442 - Dual Micropower Rail-to-rail Output Single Supply Operational Amplifier, Package: Soic Narrow, Pin Nb=8 |
| Company: | National Semiconductor Corporation |
| Datasheet: | Download LMC6442IMX datasheet File size : 562 kB |
| Request For quote: | Find where to buy LMC6442IMX
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Datasheet text preview:
LMC6442 Dual Micropower Rail-to-Rail Output Single Supply Operational Amplifier
August 2000
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 amplifier) and Rail-to-Rail output swing is required. It is characterized for 2.2V to 10V operation, and at 2.2V supply, the LMC6442 is ideal for single (Li-Ion) or two cell (NiCad or alkaline) 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 communications systems. Operation from single supply is enhanced by the wide common 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 current over supply voltage enhance the LMC6442's performance 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.
Features
(Typical, VS = 2.2V) n Output Swing to within 30 mV of supply rail n High voltage gain 103 dB n Gain Bandwidth Product 9.5 KHz n Guaranteed for: 2.2V, 5V, 10V n Low Supply Current 0.95 µA/Amplifier n Input Voltage Range -0.3V to V+ -0.9V n 2.1 µW/Amplifier Power consumption n Stable for AV +2 or AV -1
Applications
n n n n n n n n Portable instruments Smoke/gas/CO/fire detectors Pagers/cell phones Instrumentation Thermostats Occupancy sensors Cameras Active badges
Connection Diagram
DS100064-40
Top View
© 2001 National Semiconductor Corporation
DS100064
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LMC6442
Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. ESD Tolerance (Note 2) Differential Input Voltage Voltage at Input/Output Pin Supply Voltage (V - V ): Current at Input Pin (Note 10) Current at Output Pin(Notes 3, 7) Lead Temp. (soldering 10 sec) Storage Temp. Range: Junction Temp. (Note 4)
+ - + -
Operating Ratings(Note 1)
Supply Voltage Junction Temperature Range: LMC6442AI, LMC6442I Thermal Resistance (JA) M Package, 8-pin Surface Mount MSOP Package N Package, 8-pin Molded DIP 193°C/W 235°C/W 115°C/W 1.8V VS 11V -40°C < TJ < +85°C
2 kV
± Supply Voltages
(V ) + 0.3V, (V ) - 0.3V 16V
± 5 mA ± 30 mA
260°C -65°C to +150°C 150°C
2.2V Electrical Characteristics
Unless otherwise specified, all limits guaranteed for TJ = 25°C, V+ = 2.2V, V- = 0V, VCM = VO = V +/2, and RL = 1 M to V+/2. Boldface limits apply at the temperature extremes. Symbol Parameter Conditions Typ (Note 5) LMC6442AI Limit (Note 6) LMC6442I Limit (Note 6) Units
DC Electrical Characteristics VOS TCVOS IB IOS CMRR CIN PSRR VCM Input Offset Voltage Temp. coefficient of input offset voltage Input Bias Current Input Offset Current Common Mode Rejection Ratio Common Mode Input Capacitance Power Supply Rejection Ratio Input Common-Mode Voltage Range VS = 2.5 V to 10V (Note 14) (Note 14) -0.1V VCM 0.5V -0.75 0.4 0.005 0.0025 92 4.7 75 75 1.05 0.95 -0.2 0 75 75 1.05 0.95 -0.2 0 4 2 67 67 4 2 67 67
±3 ±4
±7 ±8
mV max µV/°C pA max pA max dB min pF dB min V min V max dB min V min mV max µA min
95 1.3
CMRR 50 dB
-0.3 100 94 103 2.18 22 50 50 1.90 2.10 2.2
AV
Large Signal Voltage Gain
Sourcing (Note 11) Sinking(Note 11) VO = 0.22V to 2V
80 2.15 2.15 60 60 18 17 20 19 2.4 3.0
80 2.15 2.15 60 60 18 17 20 19 2.6 3.2
VO
Output Swing
VID = 100 mV (Note 13) VID = -100 mV (Note 13)
ISC
Output Short Circuit Current
Sourcing, VID = 100 mV (Notes 12, 13) Sinking, VID = -100 mV (Notes 12, 13)
IS
Supply Current (2 amplifiers)
RL = open V+ = 1.8V, RL = open
µA max
AC Electrical Characteristics SR Slew Rate (Note 8) V/ms
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LMC6442
2.2V Electrical Characteristics
(Continued)
Unless otherwise specified, all limits guaranteed for TJ = 25°C, V+ = 2.2V, V- = 0V, VCM = VO = V +/2, and RL = 1 M to V+/2. Boldface limits apply at the temperature extremes. Symbol Parameter Conditions Typ (Note 5) LMC6442AI Limit (Note 6) LMC6442I Limit (Note 6) Units
AC Electrical Characteristics GBWP m Gain-Bandwidth Product Phase Margin (Note 15) 9.5 63 KHz Degree
5V Electrical Characteristics
Unless otherwise specified, all limits guaranteed for TJ = 25°C, V+ = 5V, V- = 0V, VCM = VO = V +/2, and RL = 1 M to V+/2. Boldface limits apply at the temperature extremes. Symbol Parameter Conditions Typ (Note 5) LMC6442AI Limit (Note 6) LMC6442I Limit (Note 6) Units
DC Electrical Characteristics VOS TCVOS IB IOS CMRR CIN PSRR VCM Input Offset Voltage Temp. coefficient of input offset voltage Input Bias Current Input Offset Current Common Mode Rejection Ratio Common Mode Input Capacitance Power Supply Rejection Ratio Input Common-Mode Voltage Range VS = 2.5 V to 10V (Note 14) (Note 14) -0.1V VCM 3.5V -0.75 0.4
±3 ±4
±7 ±8
mV max µV/°C pA max pA max dB min pF
0.005 0.0025 102 4.1
4 2 70 70
4 2 70 70
95 4.1
75 75 3.85 3.75 -0.2 0
75 75 3.85 3.75 -0.2 0
dB min V min V max dB min V min mV max µA min µA max V/ms KHz Degree %
CMRR 50 dB
-0.4 100 94 103 4.99 20 500 350 1.90
AV
Large Signal Voltage Gain
Sourcing (Note 11) Sinking (Note 11) VO = 0.5V to 4.5V
80 4.95 4.95 50 50 300 200 200 150 2.4 3.0 2.5
80 4.95 4.95 50 50 300 200 200 150 2.6 3.2 2.5
VO
Output Swing
VID = 100 mV (Note 13) VID = -100 mV (Note 13)
ISC
Output Short Circuit Current
Sourcing, VID = 100 mV (Notes 12, 13) Sinking, VID = -100 mV (Notes 12, 13)
IS
Supply Current (2 amplifiers)
RL = open
AC Electrical Characteristics SR GBWP m THD Slew Rate (Note 8) Gain-Bandwidth Product Phase Margin Total Harmonic Distortion (Note 15) AV = +2, f = 100 Hz, RL = 10M, VOUT = 1 Vpp 4.1 10 64 0.08
3
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