LM2902DTB ON Semiconductor, LM2902DTB Datasheet - Page 6

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LM2902DTB

Manufacturer Part Number
LM2902DTB
Description
IC OPAMP QUAD SGL SUPPLY 14TSSOP
Manufacturer
ON Semiconductor
Datasheet

Specifications of LM2902DTB

Amplifier Type
General Purpose
Number Of Circuits
4
Slew Rate
0.6 V/µs
Gain Bandwidth Product
1MHz
Current - Input Bias
90nA
Voltage - Input Offset
2000µV
Current - Supply
1.4mA
Current - Output / Channel
40mA
Voltage - Supply, Single/dual (±)
3 V ~ 32 V, ±1.5 V ~ 16 V
Operating Temperature
-40°C ~ 105°C
Mounting Type
Surface Mount
Package / Case
14-TSSOP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Output Type
-
-3db Bandwidth
-

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compensated, two−stage operational amplifiers. The first
stage of each consists of differential input devices Q20 and
Q18 with input buffer transistors Q21 and Q17 and the
differential to single ended converter Q3 and Q4. The first
stage performs not only the first stage gain function but also
performs the level shifting and transconductance reduction
functions. By reducing the transconductance, a smaller
compensation capacitor (only 5.0 pF) can be employed, thus
saving chip area. The transconductance reduction is
accomplished by splitting the collectors of Q20 and Q18.
Another feature of this input stage is that the input common
mode range can include the negative supply or ground, in
single supply operation, without saturating either the input
devices or the differential to single−ended converter. The
second stage consists of a standard current source load
amplifier stage.
The LM324 series is made using four internally
3.0 V to V
Single Supply
CC(max)
70
60
50
40
30
20
10
0
1.0
1
2
3
4
V
V
CC
EE
/GND
Figure 4. Gain and Phase Margin
10
CIRCUIT DESCRIPTION
Gain Margin
LOAD CAPACITANCE (pF)
http://onsemi.com
Figure 3.
100
6
regulator which has a low temperature coefficient thus
giving each amplifier good temperature characteristics as
well as excellent power supply rejection.
Each amplifier is biased from an internal−voltage
Figure 2. Large Signal Voltage Follower Response
Phase Margin
1000
V
V
CC
EE
10000
1
2
3
4
70
60
50
0
40
30
20
10
Split Supplies
5.0 ms/DIV
1.5 V to V
1.5 V to V
V
R
T
CC(max)
EE(max)
A
CC
L
= 25°C
= 2.0 kW
= 15 Vdc

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