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Details, datasheet, quote on part number:LMC6684AIMX
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Datasheet text preview:
LMC6681 Single/LMC6682 Dual/LMC6684 Quad Low Voltage, Rail-To-Rail Input and Output CMOS Amplifier with Powerdown
May 1995
LMC6681 Single/LMC6682 Dual/LMC6684 Quad Low Voltage, Rail-To-Rail Input and Output CMOS Amplifier with Powerdown
General Description
The LMC6681/2/4 is a high performance operational amplifier which can operate over a wide range of supply voltages, with guaranteed specifications at 1.8V, 2.2V, 3V, 5V, and 10V. The LMC6681/2/4 provides an input common-mode voltage range that exceeds both supplies. The rail-to-rail output swing of the amplifier assures maximum dynamic signal range. This rail-to-rail performance of the amplifier, combined with its high open-loop voltage gain makes it unique among CMOS rail-to-rail amplifiers. The LMC6681/2/4 is an excellent choice for circuits where the common-mode voltage range is a concern. The LMC6681/2/4 has a powerdown mode which can be controlled externally. In this powerdown mode, the supply current decreases from 700 µA per amplifier to less than 1 µA per amplifier. The LMC6684 has two powerdown options. Each of the powerdown pins disables two amplifiers. The LMC6681/2/4 has been designed specifically to improve system performance in low voltage applications. The amplifier's 80 fA input current, 0.5 mV offset voltage, and 82 dB CMRR maintain accuracy in battery-powered systems.
Features
(Typical unless otherwise noted) n Guaranteed Specs at 1.8V, 2.2V, 3V, 5V, 10V n Rail-to-Rail Input Common-Mode Voltage Range n Rail-to-Rail Output Swing (within 10 mV of supply rail, @ VS = 3V and RL = 10 k) n Powerdown Mode IS OFF 1.5 µA/Amplifier (Guaranteed at VS = 1.8V, 2.2V, 3V, and 5V) n Ultra Low Input Current 80 fA n High Voltage Gain (VS = 3V, RL = 10 k): 120 dB n Unity Gain Bandwidth 1.2 MHz
Applications
n n n n n n Battery Operated Circuits Sensor Amplifiers Portable Communication Devices Medical Instrumentation Battery Monitoring Circuits Level Detectors, Sample-and-Hold Circuits
Connection Diagrams
8-Pin DIP/SO 14-Pin DIP/SO
DS012042-1
Top View
DS012042-2
Top View
16-Pin DIP/SO
DS012042-3
Top View
© 1999 National Semiconductor Corporation
DS012042
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Ordering Information
Package 8-Pin Molded DIP 8-Pin Small Outline 14-Pin Molded DIP 14-Pin Small Outline 16-Pin Molded DIP 16-Pin Small Outline Temperature Range Industrial, -40°C to +85°C LMC6681AIN, LMC6681BIN LMC6681AIM, LMC6681BIM LMC6681AIMX, LMC6681B1MX LMC6682AIN, LMC6682BIN LMC6682AIM, LMC6682BIM LMC6682AIMX, LMC6682BIMX LMC6684AIN, LMC6684BIN LMC6684AIM, LMC6684BIM LMC6684AIMX, LMC6684BIMX NSC Drawing N08E M08A M08A N14A M14A M14A N16A M16A M16A Transport Media Rails Rails Tape and Reel Rails Rails Tape and Reel Rails Rails Tape and Reel
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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 11) Current at Output Pin (Note 3) Current at Power Supply Pin Lead Temp. (soldering, 10 sec.) Storage Temperature Range Junction Temperature (Note 4) 2 kV ± Supply Voltage (V+) +0.3V, (V-) -0.3V 12V ± 5 mA ± 30 mA 35 mA 260°C -65°C to +150°C 150°C
Operating Ratings (Note 1)
Supply Voltage Junction Temperature Range LMC6681AI, LMC6681BI LMC6682AI, LMC6682BI LMC6684AI, LMC6684BI Thermal Resistance (JA) N Package, 8-pin Molded DIP M Package, 8-pin Surface Mount N Package, 14-pin Molded DIP M Package, 14-pin Surface Mount N Package, 16-pin Molded DIP M Package, 16-pin Surface Mount 1.8V VS 10V -40°C TJ +85°C -40°C TJ +85°C -40°C TJ +85°C 108°C/W 172°C/W 88°C/W 126°C/W 83°C/W 114°C/W
3V DC Electrical Characteristics
Unless otherwise specified, all limits guaranteed for TJ = 25°C, V+ = 3.0V, V- = 0V, VCM = VO = V+/2, VPD = 0.6V and RL > 1 M. Boldface limits apply at the temperature extremes (Note 16). LMC6681AI LMC6682AI Symbol Parameter Conditions Typ (Note 5) LMC6684AI Limit (Note 6) VOS TCVOS IB IOS RIN CIN CMRR PSRR VCM Input Offset Voltage Input Offset Voltage Average Drift Input Current Input Offset Current Input Resistance Input Capacitance Common Mode Rejection Ratio Power Supply Rejection Ratio Input Common Mode Voltage Range -0.3 AV VO Large Signal Voltage Gain Output Swing RL = 600 (Notes 7, 12) RL = 10 k (Notes 7, 12) RL = 600 to V+/2 70 1000 2.87 0.15 RL = 2 k to V+/2 2.95 0.05 RL = 10 k to V+/2 2.99 0.01 (Note 13) (Note 12) (Note 12) 0.08 0.04 20 10 20 10 pA max pA max Tera pF 70 65 70 65 3.23 3.18 3.00 -0.18 0.00 10 12 2.70 2.58 0.3 0.42 2.85 2.79 0.15 0.21 2.94 2.91 0.04 0.05 65 62 65 62 3.18 3.00 -0.18 0.00 10 12 2.70 2.58 0.3 0.42 2.85 2.79 0.15 0.21 2.94 2.91 0.04 0.05 dB min dB min V min V max V/mV V/mV V min V max V min V max V min V max 0.5 1.5 1 2.5 LMC6681BI LMC6682BI LMC6684BI Limit (Note 6) 3 4.5 mV max µV/°C Units
>1
3 82 82
± 1.5V VS ± 2.5V
VO = V+/2 = VCM CMRR > 50 dB
3
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