holdenm@thor.stolaf.edu (Mark Holden) (05/20/89)
I'm looking for pin-compatable replacements for 1458/4558 op-amps. It's for an audio application, so I'm looking for the best frequency response (secondary) and the lowest noise (primary). I intend to buy a few different types and play around with different combinations, so I'm trying to find a variety. Are there any ones that have a FET *output* stage, or don't such things exist? I'd also like to get addresses for places from which I can order these. What I have so far is: TL082 (available from Radio Schlock for 1.98, any mail order?) Analog Devices AD712 Much thanks.
kenny@m.cs.uiuc.edu (05/24/89)
/* Written 4:51 am May 20, 1989 by holdenm@thor.stolaf.edu in m.cs.uiuc.edu:sci.electronics */ /* ---------- "1458/4558 pin compatable op-amps?" ---------- */ I'm looking for pin-compatable replacements for 1458/4558 op-amps. It's for an audio application, so I'm looking for the best frequency response (secondary) and the lowest noise (primary). I intend to buy a few different types and play around with different combinations, so I'm trying to find a variety. Are there any ones that have a FET *output* stage, or don't such things exist? I'd also like to get addresses for places from which I can order these. What I have so far is: TL082 (available from Radio Schlock for 1.98, any mail order?) Analog Devices AD712 Much thanks. /* End of text from m.cs.uiuc.edu:sci.electronics */ Gawd, you're asking for a complicated answer. Unlike single- and quad-op-amp packages, duals are pretty standard; virtually all of them follow the 1458 pinouts. Here are a few: Manufacturer Part Inputs Notes ------------------------------------------------------------------------ TI TL062 JFET Low power TI TL072 JFET TI TL082 JFET Linear Tech. LT1013A Bipolar Instrumentation-grade, single-supply PMI OP-14 Bipolar 1458 with improved dc performance Motorola MC1458 NPN Basically just a dual 741 Motorola MC1458S NPN Improved 1458; higher speed Motorola MC1558 NPN Commercial 1458 Burr-Brown OPA2111 FET Low input offset voltage and bias current; low drift; low noise; instrumentation grade PMI OP-215 FET Dual 355 PMI OP-221 Bipolar Low power consumption; single supply TI TLC252* MOSFET Single supply, low input bias current Harris HA2655 Bipolar High-speed, can handle high supply voltage TI TLC272* MOSFET Single supply, low input bias current, low power consumption. RCA CA3240 MOSFET Dual 3140; single supply; low bias current; low power consumption RCA CA3260 MOSFET Dual 3130 or 3160; single supply. Motorola MC34002 MOSFET Motorola MC34072A Bipolar High-speed, single supply Motorola MC34082A FET High speed Motorola MC3458 PNP Like LM358, but class-A/B outputs; higher quiescent current but lower crossover distortion National LF353 FET High-speed National LM358[A] PNP Dual 324; class-B outputs; can source/sink up to 40 mA National LF412A FET National LF442A FET Low power Raytheon RC4558/9 PNP Dual 741 but lower noise, better slew rate, higher gain-bandwidth product Signetics NE532 PNP LM358 equivalent Signetics NE5512 Bipolar Low bias current Signetics NE5532 Bipolar High-speed, low-noise Signetics NE5535 Bipolar High slew rate Analog Devices AD644 FET Low input offset voltage, high slew rate Analog Devices AD647 FET Low input offset voltage, low drivt, good dc performance Analog Devices AD648 FET Low power Analog Devices AD712 FET Low input offset voltage, high slew rate, fast settling time Fairchild uA772 FET Fairchild uA798 PNP MC3458 equivalent National LM833A Bipolar High-speed, low-noise *-Series Digi-Key (1-800-344-4539) stock a lot of these; a quick glance through their current catalog shows (They've probably got others): Price Part Price Part Price Part 0.52 MC1458N (DIP) 0.51 LM358N (DIP) 0.77 NE532 0.56 MC1458D (SO-8 can) 0.54 LM358M (SO-8 can) 1.24 NE5512 1.70 CA3240 1.74 LF412 1.85 NE5532 2.20 CA3260 0.48 MC4558CD (SO-8 can) 3.95 NE5535 1.05 LF353 0.48 MC4558CN (DIP) 1.35 LM833 Jameco in California is also a good source of this sort of stuff; unfortunately, I don't have their catalogue here in the office today. I know that they stock TL082s; I've ordered them from there before. For your application, the NE5532 sounds like a good bet. Better look at tha data sheet to make sure that it's fully compatible, `pin-compatible' parts ofthen have a few `gotcha's somewhere. Kevin
eegauthe@cybaswan.UUCP (o) (05/25/89)
In article <2185@thor.acc.stolaf.edu> holdenm@thor.stolaf.edu (Mark Holden) writes: > > I'm looking for pin-compatable replacements for 1458/4558 op-amps. >It's for an audio application, so I'm looking for the best frequency response >(secondary) and the lowest noise (primary). The few references I know that would fit your needs are: TL071 - TL081 - LF353 uA772: all those are equivalent cheapy dual op-amps . The input equivalent noise level is around 15-18 nV/(Hz)^1/2, and the gain * band product is around 3MHz (not bad for microphone amplifiers) NE5532 - LM833: those ones are a bit more expensive but the result is better: noise level around 5 nv/(Hz)^1/2 and gain * band of 10 to 15 MHz (very good mic amps!) > Are there any ones that have a FET *output* stage, or don't such >things exist? Sorry, I haven't heard about such devices. Hope that helps. Olivier. -- Olivier GAUTHEROT,// Postgraduate // Electrical Engineering Dept. University of Wales // Swansea, SA2 8PP, U.K. (+44 792 205678 ext 4564) UUCP : ...!ukc!pyr.swan.ac.uk!eegauthe JANET : eegauthe@uk.ac.swan.pyr Usual disclaimer. Who shall I send the copyrights to?