How can I determine whether this is a “rail to rail†opamp from its datasheet?
Clash Royale CLAN TAG#URR8PPP
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I know that rail to rail means that the opamp output can have a swing upto its power rail voltages.
So for a rail to rail opamp lets say if the supply test condition is +-12V, I would assume that the output swing can reach upto +12V or down to -12V.
Similarly with a +-15V supply the swing would reach upto +15V or down to -15V.
But nowhere in this datasheet "rail to rail" phrase is indicated.
In electrical characteristics I can only see some section called "Maximum peak output voltage swing" without any given supply voltage condition.
So briefly, I'm not able to verify whether this opamp is rail to rail and I guess don't know to focus on the right parameters.
How can it be inferred from this datasheet whether this opamp is rail to rail?
op-amp datasheet rail-to-rail
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up vote
1
down vote
favorite
I know that rail to rail means that the opamp output can have a swing upto its power rail voltages.
So for a rail to rail opamp lets say if the supply test condition is +-12V, I would assume that the output swing can reach upto +12V or down to -12V.
Similarly with a +-15V supply the swing would reach upto +15V or down to -15V.
But nowhere in this datasheet "rail to rail" phrase is indicated.
In electrical characteristics I can only see some section called "Maximum peak output voltage swing" without any given supply voltage condition.
So briefly, I'm not able to verify whether this opamp is rail to rail and I guess don't know to focus on the right parameters.
How can it be inferred from this datasheet whether this opamp is rail to rail?
op-amp datasheet rail-to-rail
1
The table in 6.5 has the Vcc mentioned at the top (+/- 15V)
– ratchet freak
30 mins ago
I see so can we say it can typically swing between +13.5V and -13.5V for a supply voltage +/- 15V? So not a rail to rail opamp?
– user1234
27 mins ago
1
@ratchetfreak Please keep your answers to the answers section. As you can see, your comment is now starting a possibly lengthy discussion from OP, and you can not edit your comment to clarify, nor can the user accept your answer.
– pipe
16 mins ago
add a comment |Â
up vote
1
down vote
favorite
up vote
1
down vote
favorite
I know that rail to rail means that the opamp output can have a swing upto its power rail voltages.
So for a rail to rail opamp lets say if the supply test condition is +-12V, I would assume that the output swing can reach upto +12V or down to -12V.
Similarly with a +-15V supply the swing would reach upto +15V or down to -15V.
But nowhere in this datasheet "rail to rail" phrase is indicated.
In electrical characteristics I can only see some section called "Maximum peak output voltage swing" without any given supply voltage condition.
So briefly, I'm not able to verify whether this opamp is rail to rail and I guess don't know to focus on the right parameters.
How can it be inferred from this datasheet whether this opamp is rail to rail?
op-amp datasheet rail-to-rail
I know that rail to rail means that the opamp output can have a swing upto its power rail voltages.
So for a rail to rail opamp lets say if the supply test condition is +-12V, I would assume that the output swing can reach upto +12V or down to -12V.
Similarly with a +-15V supply the swing would reach upto +15V or down to -15V.
But nowhere in this datasheet "rail to rail" phrase is indicated.
In electrical characteristics I can only see some section called "Maximum peak output voltage swing" without any given supply voltage condition.
So briefly, I'm not able to verify whether this opamp is rail to rail and I guess don't know to focus on the right parameters.
How can it be inferred from this datasheet whether this opamp is rail to rail?
op-amp datasheet rail-to-rail
op-amp datasheet rail-to-rail
asked 34 mins ago
user1234
475822
475822
1
The table in 6.5 has the Vcc mentioned at the top (+/- 15V)
– ratchet freak
30 mins ago
I see so can we say it can typically swing between +13.5V and -13.5V for a supply voltage +/- 15V? So not a rail to rail opamp?
– user1234
27 mins ago
1
@ratchetfreak Please keep your answers to the answers section. As you can see, your comment is now starting a possibly lengthy discussion from OP, and you can not edit your comment to clarify, nor can the user accept your answer.
– pipe
16 mins ago
add a comment |Â
1
The table in 6.5 has the Vcc mentioned at the top (+/- 15V)
– ratchet freak
30 mins ago
I see so can we say it can typically swing between +13.5V and -13.5V for a supply voltage +/- 15V? So not a rail to rail opamp?
– user1234
27 mins ago
1
@ratchetfreak Please keep your answers to the answers section. As you can see, your comment is now starting a possibly lengthy discussion from OP, and you can not edit your comment to clarify, nor can the user accept your answer.
– pipe
16 mins ago
1
1
The table in 6.5 has the Vcc mentioned at the top (+/- 15V)
– ratchet freak
30 mins ago
The table in 6.5 has the Vcc mentioned at the top (+/- 15V)
– ratchet freak
30 mins ago
I see so can we say it can typically swing between +13.5V and -13.5V for a supply voltage +/- 15V? So not a rail to rail opamp?
– user1234
27 mins ago
I see so can we say it can typically swing between +13.5V and -13.5V for a supply voltage +/- 15V? So not a rail to rail opamp?
– user1234
27 mins ago
1
1
@ratchetfreak Please keep your answers to the answers section. As you can see, your comment is now starting a possibly lengthy discussion from OP, and you can not edit your comment to clarify, nor can the user accept your answer.
– pipe
16 mins ago
@ratchetfreak Please keep your answers to the answers section. As you can see, your comment is now starting a possibly lengthy discussion from OP, and you can not edit your comment to clarify, nor can the user accept your answer.
– pipe
16 mins ago
add a comment |Â
3 Answers
3
active
oldest
votes
up vote
2
down vote
Most manufacturers specifically label their op-amps to be "rail-to-rail" if they're capable of such.
Under Typical Characteristics
, Figure 2 shows you what the output voltage is for a given VCC. So for a VCC of 15V, the best output you'll get is approx ~+12V.
So it is not a rail-to-rail op-amp.
add a comment |Â
up vote
2
down vote
Try this: -
For a power rail of +/- 15 volts the input common mode range is only guaranteed to be +/- 11 volts.
For a light load on the output pin (10 kohm) the output is only guaranteed to swing +/- 12 volts.
An R2R op-amp will never output swing completely to the rails but you could expect it to get within 100 mV on a light load.
Conclusion - this op-amp is NOT an R2R device.
Max peak output voltage is more straightforward. But what is really meant by "common mode input voltage range" in this context?
– user1234
6 mins ago
add a comment |Â
up vote
0
down vote
Vicr and Vom are the parameters to look at. In a rail to rail op amp, these will go all the way to the rails. The table lists the supply voltage at the top (+/- 15v). Spoiler alert : this is definitely not a rail to rail op amp.
add a comment |Â
3 Answers
3
active
oldest
votes
3 Answers
3
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
2
down vote
Most manufacturers specifically label their op-amps to be "rail-to-rail" if they're capable of such.
Under Typical Characteristics
, Figure 2 shows you what the output voltage is for a given VCC. So for a VCC of 15V, the best output you'll get is approx ~+12V.
So it is not a rail-to-rail op-amp.
add a comment |Â
up vote
2
down vote
Most manufacturers specifically label their op-amps to be "rail-to-rail" if they're capable of such.
Under Typical Characteristics
, Figure 2 shows you what the output voltage is for a given VCC. So for a VCC of 15V, the best output you'll get is approx ~+12V.
So it is not a rail-to-rail op-amp.
add a comment |Â
up vote
2
down vote
up vote
2
down vote
Most manufacturers specifically label their op-amps to be "rail-to-rail" if they're capable of such.
Under Typical Characteristics
, Figure 2 shows you what the output voltage is for a given VCC. So for a VCC of 15V, the best output you'll get is approx ~+12V.
So it is not a rail-to-rail op-amp.
Most manufacturers specifically label their op-amps to be "rail-to-rail" if they're capable of such.
Under Typical Characteristics
, Figure 2 shows you what the output voltage is for a given VCC. So for a VCC of 15V, the best output you'll get is approx ~+12V.
So it is not a rail-to-rail op-amp.
answered 24 mins ago


John Go-Soco
1783
1783
add a comment |Â
add a comment |Â
up vote
2
down vote
Try this: -
For a power rail of +/- 15 volts the input common mode range is only guaranteed to be +/- 11 volts.
For a light load on the output pin (10 kohm) the output is only guaranteed to swing +/- 12 volts.
An R2R op-amp will never output swing completely to the rails but you could expect it to get within 100 mV on a light load.
Conclusion - this op-amp is NOT an R2R device.
Max peak output voltage is more straightforward. But what is really meant by "common mode input voltage range" in this context?
– user1234
6 mins ago
add a comment |Â
up vote
2
down vote
Try this: -
For a power rail of +/- 15 volts the input common mode range is only guaranteed to be +/- 11 volts.
For a light load on the output pin (10 kohm) the output is only guaranteed to swing +/- 12 volts.
An R2R op-amp will never output swing completely to the rails but you could expect it to get within 100 mV on a light load.
Conclusion - this op-amp is NOT an R2R device.
Max peak output voltage is more straightforward. But what is really meant by "common mode input voltage range" in this context?
– user1234
6 mins ago
add a comment |Â
up vote
2
down vote
up vote
2
down vote
Try this: -
For a power rail of +/- 15 volts the input common mode range is only guaranteed to be +/- 11 volts.
For a light load on the output pin (10 kohm) the output is only guaranteed to swing +/- 12 volts.
An R2R op-amp will never output swing completely to the rails but you could expect it to get within 100 mV on a light load.
Conclusion - this op-amp is NOT an R2R device.
Try this: -
For a power rail of +/- 15 volts the input common mode range is only guaranteed to be +/- 11 volts.
For a light load on the output pin (10 kohm) the output is only guaranteed to swing +/- 12 volts.
An R2R op-amp will never output swing completely to the rails but you could expect it to get within 100 mV on a light load.
Conclusion - this op-amp is NOT an R2R device.
answered 22 mins ago


Andy aka
231k10171392
231k10171392
Max peak output voltage is more straightforward. But what is really meant by "common mode input voltage range" in this context?
– user1234
6 mins ago
add a comment |Â
Max peak output voltage is more straightforward. But what is really meant by "common mode input voltage range" in this context?
– user1234
6 mins ago
Max peak output voltage is more straightforward. But what is really meant by "common mode input voltage range" in this context?
– user1234
6 mins ago
Max peak output voltage is more straightforward. But what is really meant by "common mode input voltage range" in this context?
– user1234
6 mins ago
add a comment |Â
up vote
0
down vote
Vicr and Vom are the parameters to look at. In a rail to rail op amp, these will go all the way to the rails. The table lists the supply voltage at the top (+/- 15v). Spoiler alert : this is definitely not a rail to rail op amp.
add a comment |Â
up vote
0
down vote
Vicr and Vom are the parameters to look at. In a rail to rail op amp, these will go all the way to the rails. The table lists the supply voltage at the top (+/- 15v). Spoiler alert : this is definitely not a rail to rail op amp.
add a comment |Â
up vote
0
down vote
up vote
0
down vote
Vicr and Vom are the parameters to look at. In a rail to rail op amp, these will go all the way to the rails. The table lists the supply voltage at the top (+/- 15v). Spoiler alert : this is definitely not a rail to rail op amp.
Vicr and Vom are the parameters to look at. In a rail to rail op amp, these will go all the way to the rails. The table lists the supply voltage at the top (+/- 15v). Spoiler alert : this is definitely not a rail to rail op amp.
answered 24 mins ago
alex.forencich
31.5k14683
31.5k14683
add a comment |Â
add a comment |Â
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1
The table in 6.5 has the Vcc mentioned at the top (+/- 15V)
– ratchet freak
30 mins ago
I see so can we say it can typically swing between +13.5V and -13.5V for a supply voltage +/- 15V? So not a rail to rail opamp?
– user1234
27 mins ago
1
@ratchetfreak Please keep your answers to the answers section. As you can see, your comment is now starting a possibly lengthy discussion from OP, and you can not edit your comment to clarify, nor can the user accept your answer.
– pipe
16 mins ago