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Details, datasheet, quote on part number:LM148J/883
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| Part: | LM148J/883 |
| Category: | Analog & Mixed-Signal Processing => Amplifiers => Operational Amplifiers => Low Power |
| Description: | LM148 - Series Quad 741 op Amp, Package: Lcc, Pin Nb=20 |
| Company: | National Semiconductor Corporation |
| Datasheet: | Download LM148J/883 datasheet File size : 436 kB |
| Request For quote: | Find where to buy LM148J/883
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Datasheet text preview:
LM148/LM149 Series Quad 741 Op Amp
December 2000
LM148/LM248/LM348 Quad 741 Op Amps LM149 Wide Band Decompensated (AV
General Description
The LM148 series is a true quad 741. It consists of four independent, high gain, internally compensated, low power operational amplifiers which have been designed to provide functional characteristics identical to those of the familiar 741 operational amplifier. In addition the total supply current for all four amplifiers is comparable to the supply current of a single 741 type op amp. Other features include input offset currents and input bias current which are much less than those of a standard 741. Also, excellent isolation between amplifiers has been achieved by independently biasing each amplifier and using layout techniques which minimize thermal coupling. The LM149 series has the same features as the LM148 plus a gain bandwidth product of 4 MHz at a gain of 5 or greater. The LM148 can be used anywhere multiple 741 or 1558 type amplifiers are being used and in applications where amplifier matching or high packing density is required. For lower power refer to LF444. n n n n n n n n n n n n
(MIN)
= 5)
Features
741 op amp operating characteristics Class AB output stage -- no crossover distortion Pin compatible with the LM124 Overload protection for inputs and outputs Low supply current drain: 0.6 mA/Amplifier Low input offset voltage: 1 mV Low input offset current: 4 nA Low input bias current 30 nA High degree of isolation between amplifiers: 120 dB Gain bandwidth product LM148 (unity gain): 1.0 MHz LM149 (AV 5): 4 MHz
Schematic Diagram
DS007786-1
* 1 pF in the LM149
© 2001 National Semiconductor Corporation
DS007786
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LM148/LM149/LM248/LM348
Absolute Maximum Ratings (Note 4)
If Military/Aerospace specified devices are required, Office/Distributors for availability and specifications. please contact the National Semiconductor Sales LM148/LM149 LM248 LM348 ± 22V ± 18V ± 18V Supply Voltage ± 44V ± 36V ± 36V Differential Input Voltage Output Short Circuit Duration (Note 1) Continuous Continuous Continuous Power Dissipation (Pd at 25°C) and Thermal Resistance (jA), (Note 2) -- -- 750 mW Molded DIP (N) Pd -- -- 100°C/W jA 1100 mW 800 mW 700 mW Cavity DIP (J) Pd 110°C/W 110°C/W 110°C/W JA 150°C 110°C 100°C Maximum Junction Temperature (TjMAX) -25°C TA +85°C 0°C TA +70°C Operating Temperature Range -55°C TA +125°C Storage Temperature Range -65°C to +150°C -65°C to +150°C -65°C to +150°C Lead Temperature (Soldering, 10 sec.) Ceramic 300°C 300°C 300°C Lead Temperature (Soldering, 10 sec.) Plastic 260°C Soldering Information Dual-In-Line Package Soldering (10 seconds) 260°C 260°C 260°C Small Outline Package Vapor Phase (60 seconds) 215°C 215°C 215°C Infrared (15 seconds) 220°C 220°C 220°C See AN-450 "Surface Mounting Methods and Their Effect on Product Reliability" for other methods of soldering surface mount devices. ESD tolerance (Note 5) 500V 500V 500V
Electrical Characteristics
(Note 3) Parameter Input Offset Voltage Input Offset Current Input Bias Current Input Resistance Supply Current All Amplifiers Large Signal Voltage Gain Amplifier to Amplifier Coupling Small Signal Bandwidth Conditions TA = 25°C, RS 10 k TA = 25°C TA = 25°C TA = 25°C TA = 25°C, VS = ± 15V TA = 25°C, VS = ± 15V VOUT = ± 10V, RL 2 k TA = 25°C, f = 1 Hz to 20 kHz (Input Referred) See Crosstalk Test Circuit LM148 Series TA = 25°C LM149 Series Phase Margin LM148 Series (AV = 1) TA = 25°C LM149 Series (AV = 5) Slew Rate LM148 Series (AV = 1) TA = 25°C LM149 Series (AV = 5) Output Short Circuit Current Input Offset Voltage Input Offset Current TA = 25°C RS 10 k 2.0 25 6.0 75 2.0 25 7.5 125 2.0 25 7.5 100 V/µs mA mV nA 60 0.5 60 0.5 60 0.5 degrees V/µs 4.0 60 4.0 60 4.0 60 MHz degrees 1.0 1.0 1.0 MHz -120 -120 -120 dB 50 0.8 LM148/LM149 Min Typ Max Min 1.0 4 30 2.5 2.4 160 3.6 25 5.0 25 100 0.8 LM248 Typ Max Min 1.0 4 30 2.5 2.4 160 4.5 25 6.0 50 200 0.8 LM348 Typ Max 1.0 4 30 2.5 2.4 160 4.5 6.0 50 200 mV nA nA M mA V/mV Units
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LM148/LM149/LM248/LM348
Electrical Characteristics
(Note 3) Parameter Input Bias Current Large Signal Voltage Gain Output Voltage Swing Input Voltage Range Common-Mode Rejection Ratio Supply Voltage Rejection
(Continued)
Conditions
LM148/LM149 Min Typ Max Min 325 15
LM248 Typ Max Min 500 15
LM348 Typ Max 400
Units nA V/mV V V V dB dB
VS = ± 15V, VOUT = ± 10V, RL > 2 k VS = ± 15V, RL = 10 k RL = 2 k VS = ± 15V RS 10 k RS 10 k, ± 5V VS ± 15V
25
± 12 ± 13 ± 10 ± 12 ± 12
70 77 90 96
± 12 ± 13 ± 10 ± 12 ± 12
70 77 90 96
± 12 ± 13 ± 10 ± 12 ± 12
70 77 90 96
Note 1: Any of the amplifier outputs can be shorted to ground indefinitely; however, more than one should not be simultaneously shorted as the maximum junction temperature will be exceeded. Note 2: The maximum power dissipation for these devices must be derated at elevated temperatures and is dicated by TjMAX, jA, and the ambient temperature, TA. The maximum available power dissipation at any temperature is Pd = (TjMAX - TA)/jA or the 25°C PdMAX, whichever is less. Note 3: These specifications apply for VS = ± 15V and over the absolute maximum operating temperature range (TL TA TH) unless otherwise noted. Note 4: Refer to RETS 148X for LM148 military specifications and refer to RETS 149X for LM149 military specifications. Note 5: Human body model, 1.5 k in series with 100 pF.
Cross Talk Test Circuit
DS007786-6
DS007786-7
DS007786-43
VS = ± 15V
Application Hints
The LM148 series are quad low power 741 op amps. In the proliferation of quad op amps, these are the first to offer the convenience of familiar, easy to use operating characteristics of the 741 op amp. In those applications where 741 op amps have been employed, the LM148 series op amps can be employed directly with no change in circuit performance.
The LM149 series has the same characteristics as the LM148 except it has been decompensated to provide a wider bandwidth. As a result the part requires a minimum gain of 5.
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