CA3260
- Thread starter DeadAirMD
- Start date
hamerfan
Well-known member
Laundryroom David
Keyboard Cowboy 🤠
Chuck D. Bones
Circuit Wizard
CA3260 is a dual CA3130. If you had an adapter board you could go that route. I agree with CyberCow, you could sub TL072 in most circuits and never know the difference. Certainly true if it's a Pu55y Melter.
Cybercow
Well-known member
And FWIW, here's list of PIN-FOR-PIN Replacements with Slew Rates & Input Types. . . .
(I've posted this a number of times in this forum before,I just copy & paste it from a continually growing list.)
Single Op Amp Equivalents:
CA3130 - Slew = 10V/µs; MOSFET (In & Out)
CA3140 - Slew = 9V/µs; FET
LF351N - Slew = 13V/µs; FET
LF356 - Slew = 12V/µs; FET
LM201 - Slew = variable; BJT
LM301 - Slew = variable; BJT
LM308 - Slew = 0.3V/µs; BJT
LM148 - Slew = ~0.5V/µs;BJT
LM4250 - Slew = variable; BJT
LM709 - Slew = 0.25V/µs; BJT
LM741 - Slew = 0.5V/µs; BJT
LM748 - Slew = 0.5V/µs; BJT
MC1439 - Slew = ~6V/µs; BJT
MC33171N - Slew = 2.1V/µs; BJT
MCP601 - Slew = 2.3V/µs; MOSFET (In & Out; 6v MAX)
MCP603 - Slew = 2.3V/µs; FET
MUSES03 - Slew = 35V/µs; FET (very expensive)
NE5534 - Slew = 13V/µs; BJT
NJU7031 - Slew = 3.5V/μs; FET
OP07CP - Slew = 0.3V/µs; BJT
OPA134 - Slew = 20V/µs; FET
OPA1642 - Slew = 20V/µs; FET
OPA205 - Slew = 4.0V/µs; FET
OPA602 - Slew = 20V/µs; FET
OPA604AP - Slew = 25V/µs; FET
OPA1641 - Slew = 20V/µs; FET
TL061 - Slew = 3.5V/µs; FET
TL070 - Slew = 18V/µs; FET
TL071 - Slew = 13V/µs; FET
PME285MB5220MR030 22nF @ 275V
Dual Op Amp Equivalents:
AD712 - Slew = 16V/µs; FET
CA3240 - Slew = 9V/µs; FET
CA3260 - Slew = 10V/µs; FET
LF353 - Slew = 13V/µs; FET
LM248 - Slew = ~0.5V/µs;BJT
LM358 - Slew = 0.3V/µs (@ unity); BJT
LM1458 - Slew = 0.5V/µs; BJT
LM2903 - Slew = 1.3V/µs; Diff. Comparator; BJT
LM393 - Slew = 1.3V/µs; Diff. Comparator; BJT
LM4558 - Slew = 1.7V/µs, BJT
LM4559 - Slew = 2V/µs; BJT
LT1490 - Slew = 0.06V/µs; BJT
LM4562 - Slew = ~20V/µs; FET
uPC4570 - Slew = 7V/µs; BJT
LM4580 - Slew = 5V/µs; BJT
LM4562 - Slew = 20V/µs; FET
LM4582 - Slew = 20V/µs; FET
LM833 - Slew = 7V/µs; BJT
LMV652 - Slew = 3V/µs ~ 0.12 mA; BJT
MAE2741 - Slew = 1.6V/µs; BJT
MC33178 - Slew = 2V/µs; BJT
MCP6002 - Slew = ~0.6V/µs; MOSFET (In & Out; 7v MAX)
NE5532 - Slew = 9V/µs; BJT
NJM022 - Slew = 0.5V/µs; BJT
NJM4560 - Slew = 5.5V/µs; BJT
NJM4565 - Slew = 4V/µs; BJT
NJU7032 - Slew = 3.5V/μs; BJT
OPA2107 - Slew > 9V/µs; FET
OPA2134 - Slew = 20V/µs; FET
OPA2205 - Slew = 4.0V/µs; FET
OPA2604 - Slew = 25V/µs; FET
OP275 - Slew = 22V/µs; FET
RC4559 - Slew = 2V/µs; BJT
JRC2068 - Slew = 6V/µs; BJT
TL022 - Slew = 0.5V/µs ~ 0.13 mA; BJT
TL062 - Slew = 3.5V/µs; FET
TL072 - Slew = 13V/µs; FET
TL082 - Slew = 13V/µs; FET
TLE2072A - Slew = 38V/µs; FET
TLE2072C - Slew = 45V/µs; FET
Quad Op Amp Equivalents:
LF347 - Slew = 13V/µs; FET
LM324 - Slew = 0.5V/µs; BJT
LM348 - Slew = ~0.5V/µs;BJT
LM837 - Slew = 8V/µs; FET
LT1491 - Slew = 0.06V/µs; BJT
MC3403 - Slew = 1.7V/µs; BJT
OPA1644 - Slew = ~20V/µs; FET
OPA4132 - Slew = ~20V/µs; FET
OPA4134 - Slew = ~20V/µs; FET
OPA4205 - Slew = 4.0V/µs; FET
NJM4741 - Slew = ~1.6V/µs; BJT
NJU7034 - Slew = 3.5V/μs; BJT
RC3403 - Slew = 1.7V/µs; BJT
TL074 - Slew = 13V/µs; FET
TL084 - Slew = 13V/µs; FET
TL064 - Slew = 3.5V/µs; FET
TLE2074A - Slew = 38V/µs; FET
TLE2074C - Slew = 45V/µs; FET
Last edited:
If you want it to sound like the Original pedal, The CA3260 is your only option available, there isn't a substitute.
A 4558D, 4580DD, TL072 will also work & to a guy standing in the front row wouldn't know the difference!
$6.33 is trivial if you want it to be Correct???
I 5ee what you did there. : ^ )
I hope you got the CA3260, The CA3620 is still in development!
Passinwind
Well-known member
AFAIK OPA 1641/1642 are SMD-only parts, not sure that having to use an adapter qualifies as a pin for pin replacement? They're often my go-to choice for clean audio widgets in any case. Some of the LT FET opamps such as LT1113 and LT1169 have worked very well for me as subs for the usual through-hole suspects, but $$$.
Cybercow
Well-known member
Good catch! Thanks. Now corrected.
Passinwind
Well-known member
Thanks for maintaining that list. Still hoping to see some cool new through hole ones someday, but definitely not holding my breath at this point.
Cybercow
Well-known member
I just added the TI OPA205, OPA2205 & OPA4205 opamps. They're fairly new, (had to order directly from TI as samples), extremely low noise, low power opamps with a slew-rate of 4.0V/µs; and a FET input (high impedance). They're not TTH, but they are rather intriguing. (Datasheet attached)Thanks for maintaining that list. Still hoping to see some cool new through hole ones someday, but definitely not holding my breath at this point.
Passinwind
Well-known member
Says bipolar in the data sheet. Looks a lot like an upgraded OPA207, so chances are good I’ll like it and find it useful for some of my onboard preamp designs.
