ELM822xA

ELM822xA 1.5μA CMOS operational amplifier
http://www.elm-tech.com
■General description
ELM822xA is low power CMOS OP-AMP with low current consumption-Typ.1.5μA provided with input
common mode voltage range and push-pull output stage. ELM822xA makes it easy to design power circuits
and is able to operate from single +1.2V power supply. ELM822xA is suitable for application such as portable
devices which require low power and single source.
■Features
■Application
•
•
•
•
• Battery-operated portable devices
• Micropower signal process
• Low voltage analog circuit
Operation from a single power source
Low voltage operation
: 1.2V≤Vdd≤6.0V
Low current consumption : Typ.1.5μA
Common-mode input voltage range
: Vss to Vdd-0.3V(Vdd=1.5V)
: Vss to Vdd-0.1V(Vdd=3.0V)
• Output stage
: Push-pull
• Unity gain bandwidth
: Typ.15kHz
• Package
: SOT-25, SC-70-5(SOT-353)
■Maximum absolute ratings
Parameter
Power supply voltage
Input voltage
Output voltage
Output circuit
Symbol
Vdd
Vin
Vout
Power dissipation
Limit
7.0
Vss-0.3 to Vdd+0.3
Vss-0.3 to Vdd+0.3
Continuous
300 (SOT-25)
150 ((SC-70-5)(SOT-353))
-40 to +85
-55 to +125
Pd
Operating temperature
Storage temperature
Top
Tstg
Unit
V
V
V
Sec.
mW
°C
°C
■Selection guide
ELM822xA-x
Symbol
a
Package
b
c
Product version
Taping direction
B: SOT-25
C: SC-70-5(SOT-353)
A
S, N: Refer to PKG file
■Pin configuration
4
5
+
-
1
2
3
ELM822 x A - x
↑↑ ↑
ab c
■Standard circuit
Pin No.
1
2
3
4
5
Pin name
OUT
VDD
IN+
INVSS
ELM822xA
Rev.1.0
9- 1
ELM822xA 1.5μA CMOS operational amplifier
http://www.elm-tech.com
■Electrical characteristics
Parameter
Operating voltage
Vdd=1.5V
Parameter
Input offset voltage
Symbol
Vdd
Symbol
Vio
Condition
Condition
Vcm=Vdd/2,
Unity gain follower
Input bias current
Iib
Common-mode input voltage range Vcmr For CMRR≥45dB
Maximum output voltage swing
Voutsh Vid=100mV, RL=10kΩ to Vss
Minimum output voltage swing
Voutsl Vid=100mV, RL=10kΩ to Vdd
Source current
Isource Vout=1.2V, Vid=100mV
Sink current
Isink Vout=0.3V, Vid=100mV
Avd RL=100kΩ to Vss, Vcm=0.75V
Large-signal voltage gain
Common-mode rejection ratio
CMRR RL=100kΩ to Vss, Vcm=0.75V
Supply voltage rejection ratio
PSRR RL=100kΩ to Vss, Vcm=0.75V
Vcm=Vdd/2,
Current consumption
Iss
Unity gain follower
Ishortp Vout to Vss shrot, Vid=100mV
Short current
Ishortn Vout to Vdd shrot, Vid=100mV
Unity gain bandwidth
GBW
Slew rate
SR
RL=100kΩ, CL=20pF
Vdd=3.0V
Parameter
Input offset voltage
Symbol
Vio
Condition
Vcm=Vdd/2,
Unity gain follower
Input bias current
Iib
Common-mode input voltage range Vcmr For CMRR≥45dB
Maximum output voltage swing
Voutsh Vid=100mV, RL=10kΩ to Vss
Minimum output voltage swing
Voutsl Vid=100mV, RL=10kΩ to Vdd
Source current
Isource Vout=2.7V, Vid=100mV
Sink current
Isink Vout=0.3V, Vid=100mV
Large-signal voltage gain
Avd RL=100kΩ to Vss, Vcm=1.5V
Common-mode rejection ratio
CMRR RL=100kΩ to Vss, Vcm=1.5V
Supply voltage rejection ratio
PSRR RL=100kΩ to Vss, Vcm=1.5V
Vcm=Vdd/2,
Current consumption
Iss
Unity gain follower
Ishortp Vout to Vss shrot, Vid=100mV
Short current
Ishortn Vout to Vdd shrot, Vid=100mV
Unity gain bandwidth
GBW
Slew rate
SR
RL=100kΩ, CL=20pF
Vss=0V, Top=-40~+85°C
Min. Typ. Max. Unit
1.2
6.0
V
Min.
Vss=0V, Top=25°C
Typ. Max. Unit
0.00
1.40
0.4
1.0
1.0
2.5
95
85
95
1.5
7.0
Min.
1.0
1.20
nA
V
V
V
mA
mA
dB
dB
dB
0.10
3.8
μA
mA
mA
kHz
mV/μs
Vss=0V, Top=25°C
Typ. Max. Unit
4.0
7.5
100
90
100
1.5
7.5
mV
1.4
4.0
15
14.0
0.00
2.90
1.5
3.0
±6
14
25
15
14.5
±6
mV
1.0
2.90
nA
V
V
V
mA
mA
dB
dB
dB
0.10
3.8
μA
mA
mA
kHz
mV/μs
Rev.1.0
9- 2
ELM822xA 1.5μA CMOS operational amplifier
http://www.elm-tech.com
■Note
1) Common mode input voltage range
ELM822xA common mode input voltage range is fixed under the condition of CMRR≥45dB; ELM822xA
is able to accept the input above its specification if the degradation of CMRR is not considered. Even if the
input voltage exceeds either positive or negative power voltage, troubles such as reverse of output will not
occur.
As maximum absolute rating, the input voltage is possible within (Vss-0.3)V to (Vdd+0.3)V.
2) Operation from single power source
ELM822xA is designed to be most suitable for single power source; therefore, ELM822xA is able to share
power supply with logic circuit one. Meanwhile, ELM822xA can also operate from double power sources.
To protect power supplies of ELM822xA and logic circuit from noise, please separate wire from power
supply and use decoupling (bypass) capacitor. Using the capacitor can improve PSRR characteristics,
especially on 10kHz to 100kHz or more.
3) Feedback
When OP-AMP circuit is used with feedback resistor, oscillation may happen in the circuit with loop-gain
like unity gain follower.
a) When large feedback resistance is used, the phase margin is decreased by its combination with the
parasitic capacitance of the input part of OP-AMP. In this situation, please connect small capacitor in
parallel with feedback resistor as shown in fig-1.
b) For capacitive load, external resistor in series connection will be effective as shown in fig-2.
(RL=300 to 500Ω)
c) Being used as an unity gain follow, ELM822xA is able to drive capacitive load of 100pF directly without
oscillation.
b) fig-2
a) fig-1
■Marking
SOT-25
SC-70-5
Symbol
a, b
c
d
Mark
5A
>0
0 to 9 and A to Z
(I, O, X excepted.)
0 to 9 and A to Z
(I, O, X excepted.)
Content
ELM822BA (SOT-25)
ELM822CA (SC-70-5)
Lot No.
Lot No.
Rev.1.0
9- 3
ELM822xA 1.5μA CMOS operational amplifier
http://www.elm-tech.com
2.0
2.0
1.0
1.0
0.5
0.5
2.5
2.5
2.0
2.0
1.5
1.0
1.0
0.5
0.5
0
0.0
Iss-Vcm Iss-Vcm
Unity Gain, Unity
Vdd=3.0V,
Gain,No
Vdd=3.0V,
load
No load
Top=+85 �
Top=+85 �
Top=+25 �
Top=+25 �
Top=-40 �Top=-40 �
80Vdd=6.0V Vdd=6.0V
60
60
40
20
Avd (dB)
80
0
-20
0.001
Vdd=3.0V Vdd=3.0V
40
10.0
8.0
8.0
Vdd=1.5V Vdd=1.5V
20
Vdd=1.2V Vdd=1.2V
0
-20
0.01
0.01
0.001 0.1
10.1
10 1
FrequencyFrequency
(kHz) (kHz)
100
6.0
4.0
0
-4.0-6.0-2.0-4.0 0.0-2.0 2.0 0.0 4.0 2.0 6.0 4.0
100
100
Avd-Frequency
Avd-Frequency
���load100k ���load
Vdd=3.0V, Vcm=1.5V,
Vdd=3.0V, 100k
Vcm=1.5V,
80
80Top=+85�
Top=+85�
60
60
20
6.0
Offset Voltage
Offset(mV)
Voltage (mV)
0
10010
Unity Gain,Unity
Vdd=3.0V,
Gain, Vcm=1.5V,
Vdd=3.0V, Vcm=1.5V,
� T op=25 �
No load, T op=25
No load,
2.0
0
-6.0
40
80
Offset Voltage
Offsetdistribution
Voltage distribution
10.0
Avd-Frequency
Avd-Frequency
Vdd=1.2V Vdd=1.2V
Top ( �)Top ( �)
12.0
� Top=25 �
Top=25
���load,
Vcm=Vdd/2,Vcm=Vdd/2,
100k ���load,
100k
Vdd=1.5V Vdd=1.5V
0
-20 -40 0 -20 20 0 40 20 60 40 80 60
12.0
3.0
Vcm (V) Vcm (V)
100
0.5
2.0
0
0.5 0.0 1.0 0.5 1.5 1.0 2.0 1.5 2.5 2.0 3.0 2.5
100
0.5
4.0
Unity Gain, Unity
Vcm=Vdd/2,
Gain, Vcm=Vdd/2,
No load
No load
1.5
1.0
6.0
Iss-Top Iss-Top
Vdd=3.0V Vdd=3.0V
Vdd=6.0V Vdd=6.0V
2.0
1.0
0
-40
6.0
Percent (%)
3.0
2.5
1.5
Top=-40 �Top=-40 �
Vdd (V) Vdd (V)
3.0
1.5
Top=+25 �
Top=+25 �
0
1.0 0.0 2.0 1.0 3.0 2.0 4.0 3.0 5.0 4.0 6.0 5.0
Iss (�A)
Iss (�A)
0
0.0
Avd (dB)
1.5
2.5
2.0
Avd (dB)
1.5
Top=+85 �
Top=+85 �
3.0
Iss (�A)
2.5
Unity Gain, Unity
Vcm=Vdd/2,
Gain, Vcm=Vdd/2,
No load
No load
3.0
Percent (%)
2.5
Iss-Vdd Iss-Vdd
Avd (dB)
3.0
Iss (�A)
3.0
Iss (�A)
Iss (�A)
■Typical characteristics
-20
0.001
Top=+25 �
Top=+25 �
40
20
Top=-40�Top=-40�
0
-20
0.01
0.01
0.001 0.1
10.1
10 1
10010
FrequencyFrequency
(kHz) (kHz)
100
Rev.1.0
9- 4
ELM822xA 1.5μA CMOS operational amplifier
http://www.elm-tech.com
CMRR-Frequency
CMRR-Frequency
20
20
Vdd=1.2V
0
CMRR-Vcm
CMRR-Vcm
[Vdd=1.2V][Vdd=1.2V]
80
20
120
CMRR (dB)
100
80
60
40
Top=+25� Top=+25�
Top=+85� Top=+85�
20
0.2
0
0.0
0.4
0.2
0.6
0.4
0.8
0.6
1.0
Vcm (V) Vcm (V)
0.8
1.2
1.0
Top=+85
100 � Top=+85�
CMRR-Vcm
CMRR-Vcm
[Vdd=1.5V][Vdd=1.5V]
120
80
40
80
40
60
40
0.5
1.5
1.0
2.0
1.5
2.5
Vcm (V) Vcm (V)
2.0
3.0
2.5
3.0
0
0.0
60
Top=+25� Top=+25�
40
Top=+85 � Top=+85 �
0
0.0
0.5
0.5
1.0
Vcm (V) Vcm (V)
1.0
1.5
1.5
CMRR-Vcm
CMRR-Vcm
[Vdd=6.0V][Vdd=6.0V]
120
���load
Frequency=1Hz,
Frequency=1Hz,
Unity Gain, 100k
Unity
Gain, 100k���load
100
Top=+85 � Top=+85 �
80
Top=-40� Top=-40�
60
Top=+25 � Top=+25 �
20
0
0.0
1.0
Top=-40� Top=-40�
20
0
0.0
80
100
���load
Frequency=1Hz,
Frequency=1Hz,
Unity Gain, 100k
Unity
Gain, 100k���load
80
60
1 100 10
Frequency (kHz)
Frequency (kHz)
100
100
20
0.5
-20
0.010.0010.1 0.01 1 0.1 10
100
120
���load
Frequency=1Hz,
Frequency=1Hz,
Unity Gain, 100k
Unity
Gain, 100k���load
20
0
0.0
1.2
120
Top=-40� Top=-40�
60 Top=+25
60� Top=+25�
40
0
20
CMRR-Vcm
CMRR-Vcm
[Vdd=3.0V][Vdd=3.0V]
CMRR (dB)
0
0.0
Top=-40 � Top=-40 �
CMRR (dB)
80
40
120
120
60
40
Top=-40� Top=-40�
20
20
-20
100 0.001
���load
Frequency=1Hz,
Frequency=1Hz,
Unity Gain, 100k
Unity
Gain, 100k���load
100
60
1 100 10
Frequency (kHz)
Frequency (kHz)
100
40
0
-20
0.010.0010.1 0.01 1 0.1 10
CMRR (dB)
CMRR (dB)
120
0
CMRR (dB)
-20
0.001
Vdd=1.2V
60
Unity Gain, Vdd=3.0V,
Unity Gain, Vdd=3.0V,
� 100k
Top=+85� Top=+85
���load 100k ���load
Vcm=1.5V,
Vcm=1.5V,
100
Top=+25� Top=+25�
80
CMRR (dB)
40 Vdd=1.5V
40 Vdd=1.5V
80
120
CMRR (dB)
60
100
CMRR (dB)
80
CMRR-Frequency
CMRR-Frequency
120
Unity Gain, Vcm=Vdd/2,
Unity Gain, Vcm=Vdd/2,
load, Top=25 �
100k ���load, Top=25
100k ����
100
Vdd=6.0V Vdd=6.0V
80
Vdd=3.0V Vdd=3.0V
60
CMRR (dB)
CMRR (dB)
100
120
CMRR (dB)
120
40
20
1.0
0
0.0
2.0
1.0
3.0
2.0
4.0
3.0
5.0
Vcm (V) Vcm (V)
4.0
6.0
5.0
6.0
Rev.1.0
9- 5
ELM822xA 1.5μA CMOS operational amplifier
http://www.elm-tech.com
PSRR-Frequency
PSRR-Frequency
120
Unity Gain, Unity
Vcm=Vdd/2,
Gain, Vcm=Vdd/2,
Vdd=3.0V Vdd=3.0V
� Top=25 �
Top=25
���load,
100k ���load,100k
100
60
Vdd=1.5V
Vdd=1.5V
60
80
60
60 �
Top=+25
Top=+25 �
40 Top=-40
40�Top=-40�
20
20
20
0
0
0
0
-20
0.001 0.1
0.01
0.01
25
25
25
20
20
20
15
10
0
2.01.0
3.02.0
4.03.0
5.04.0
Vdd (V) Vdd (V)
6.05.0
5
Isource-Vout
Isource-Vout
[Vdd=1.2V]
[Vdd=1.2V]
0.6
0.4
Top=+25�
Top=+25�
0.3
�Top=-40�
Top=-40
0.2
Isource (mA)
Isource (mA)
0.5
�
Top=+85
Top=+85�
1.5
1.0
0.5
0.1
0
0.2 0.0 0.4 0.2 0.6 0.4 0.8 0.6 1.0 0.8 1.2 1.0
Vout (V) Vout (V)
1.2
0
0.0
100
SR-Top SR-Top
Falling edgeFalling edge
15
10
Rising edge Rising edge
0
-20 -40 0 -20 20 0 40 20 60 40 80 60
Top ( �)Top ( �)
80
Isource-Vout
Isource-Vout
[Vdd=1.5V]
[Vdd=1.5V]
2.0
Vid=100mVVid=100mV
10010
5
0
-40
6.0
10 1
load100k ���load
Vdd=3.0V, Unity
Vdd=3.0V,
Gain, Unity
100k ���
Gain,
SR (mV/�s)
10
)
�)
Falling edge Falling
(Top=+25
edge�(Top=+25
)
�(Top=-40
�)
Rising edge (Top=-40
Rising edge
0.6
0
0.0
30
15
10.1
FrequencyFrequency
(kHz) (kHz)
2.0
Vid=100mVVid=100mV
Top=+85�
Top=+85�
Top=+25 �
Top=+25 �
1.5
Top=-40 �Top=-40 �
Isource (mA)
0
1.0
-20
0.001 0.1
0.01
0.01
30
load100k ���load
Unity Gain, Unity
100k ���
Gain,
)
�)
Rising edge (Top=+25
Rising edge�(Top=+25
5 edge Falling
)
�(Top=-40
�)
Falling
(Top=-40
edge
5
0.1
-20
0.001
SR (mV/�s)
SR (mV/�s)
10
0.2
100
)
�)
Rising edge (Top=+85
Rising edge�(Top=+85
15
0.3
10010
)
�)
Falling edge Falling
(Top=+85
edge�(Top=+85
20
0.4
10 1
SR-Vdd SR-Vdd
30
25
0.5
10.1
FrequencyFrequency
(kHz) (kHz)
30
SR (mV/�s)
Vdd=6.0V Vdd=6.0V
80
20
-20
0.001
Isource (mA)
100
80
Vdd=1.2V Vdd=1.2V
40
40
120
Unity
Vdd=3.0V,
Gain, Vdd=3.0V,
� Gain, Unity
Top=+85�
Top=+85
���load100k ���load
Vcm=1.5V, 100k
Vcm=1.5V,
100
PSRR (dB)
80
PSRR (dB)
PSRR (dB)
100
PSRR-Frequency
PSRR-Frequency
120
PSRR (dB)
120
1.0
0.5
0
0.0 0.5
0.5 1.0
Vout (V) Vout (V)
1.0 1.5
1.5
Rev.1.0
9- 6
ELM822xA 1.5μA CMOS operational amplifier
http://www.elm-tech.com
Vid=100mV
� Vid=100mV
Top=-40� Top=-40
Top=+25� Top=+25�
15.0
10.0
5.0
Top=+85� Top=+85�
5.0
Isource-Vout
Isource-Vout
[Vdd=6.0V][Vdd=6.0V]
70
70
60
60
50
50
Isource (mA)
10.0
20.0
Isource (mA)
15.0
Isource-Vout
Isource-Vout
[Vdd=3.0V][Vdd=3.0V]
Isource (mA)
Isource (mA)
20.0
40
30
20
10
35
Vout (V) Vout (V)
2.0
3.0
2.5
Vid=100mV
5.0
Vid=100mV
1.0
4.0
Top=+85� Top=+85�
Top=+25� Top=+25�
0.5
0.2
0.2
0.6
0.4
0.8
0.6
1.0
Vout (V) Vout (V)
0.8
1.2
1.0
Isink-Vout [Vdd=3.0V]
Isink-Vout [Vdd=3.0V]
35
Vid=100mV
5
0
0.0
20
15
Top=+85� Top=+85�
10 Top=+25 � Top=+25 �
Isink (mA)
Isink (mA)
Isink (mA)
10
100
60
40
0
0.0
1.0
0.5
1.5
1.0
2.0
1.5
2.5
Vout (V) Vout (V)
2.0
3.0
2.5
3.0
0
0.0
2.0
4.0
3.0
5.0
4.0
6.0
5.0
6.0
Isink-Vout [Vdd=1.5V]
Isink-Vout [Vdd=1.5V]
5.0
Top=-40 � Top=-40 �
4.0
Vid=100mV
Vid=100mV
3.0
Top=+85� Top=+85�
2.0 Top=+25� Top=+25�
1.0
0
0.0
0.5
0.5
1.0
Vout (V) Vout (V)
1.0
1.5
1.5
Isink-Vout [Vdd=6.0V]
Isink-Vout [Vdd=6.0V]
120
Vid=100mV
Vid=100mV
100
Top=-40 � Top=-40 �
80
20
5
0.5
80
1.0
3.0
Vout (V) Vout (V)
0
0.0
120
Vid=100mV
30
Top=-40� Top=-40�
25
25
15
2.0
1.2
30
20
3.0
0
0.0
2.0
1.0
1.0
0
0.0
0.4
Top=+85 � Top=+85 �
20
10
0
0.0
3.0
30
Isink (mA)
1.5
2.5
Top=-40 � Top=-40 �
1.5
0.5
0
0.0
1.0
2.0
2.0
Isink (mA)
Isink (mA)
1.0
0.5
1.5
Isink-Vout [Vdd=1.2V]
Isink-Vout [Vdd=1.2V]
2.0
1.5
0
0.0
1.0
Top=+25 � Top=+25 �
40
Isink (mA)
0.5
Isink (mA)
0
0.0
Vid=100mV
� Vid=100mV
Top=-40 � Top=-40
60
40
Top=+85� Top=+85�
Top=+25 � Top=+25 �
20
1.0
0
0.0
2.0
1.0
3.0
2.0
4.0
3.0
5.0
Vout (V) Vout (V)
4.0
6.0
5.0
6.0
Rev.1.0
9- 7
ELM822xA 1.5μA CMOS operational amplifier
http://www.elm-tech.com
0
1.0
1.0
0.8
0.6
0.4
20
1.5
1.0
4.03.0
5.04.0
Vdd (V) Vdd (V)
6.05.0
6.0
1.2
1.0
0.8
Top=+85�
Top=+85�
Top=+25 �
Top=+25 �
0.6
0.4
0.0
10 1
2.0
3.02.0
1.4
0.0
1
2.5
Top=+85 �
Top=+85 �
Top=-40�Top=-40�
10010
80
60
40
20
100 10000
1000
1000 100000
10000 100000
RL ( �� RL ( ��
MaximumMaximum
Vout-RL Vout-RL
[Vdd=3.0V]
[Vdd=3.0V]
1.5
1.0
0.5
7.0
3.0
Top=-40�Top=-40�
2.5
6.0
RL is connected
RL isbetween
connected
Vout
between
and Vss.
Vout and Vss.
Vid=100mVVid=100mV
Top=+25�
Top=+25�
2.0
1.5
Top=+85 �
Top=+85 �
1.0
0.5
0.5
0.0
1
0.0
10 1
10010
10000 100000
1000
1000 100000
100 10000
RL ( �� RL ( ��
5.0
4.0
3.0
2.0
80
Top=-40�Top=-40�
60
40
Top=+25�
Top=+25�
20
Top=+85 �
Top=+85 �
0
2.01.0
3.02.0
4.03.0
5.04.0
Vdd (V) Vdd (V)
6.05.0
6.0
MaximumMaximum
Vout-RL Vout-RL
[Vdd=1.5V]
[Vdd=1.5V]
2.0
RL is connected
RL isbetween
connected
Vout
between
and Vss.
Vout and Vss.
Vid=100mVVid=100mV
Top=-40�Top=-40�
1.5
1.0
Top=+25�
Top=+25�
Top=+85 �
Top=+85 �
0.5
0.0
1
3.5
Vout to VddVout
short,toVid=100mV
Vdd short, Vid=100mV
100
0
1.0
2.0
RL is connected
RL isbetween
connected
Vout
between
and Vss.
Vout and Vss.
Vid=100mVVid=100mV
0.2
3.0
Top=+25 �
Top=+25 �
10
0.2
3.5
Maximum Vout (V)
30
MaximumMaximum
Vout-RL Vout-RL
[Vdd=1.2V]
[Vdd=1.2V]
Maximum Vout (V)
1.2
40
0
2.01.0
Maximum Vout (V)
Maximum Vout (V)
1.4
Top=-40�Top=-40�
Short Circuit Current (mA)
10
50
120
Maximum Vout (V)
20
100
Short Circuit
Short
Current-Vdd
Circuit Current-Vdd
0.0
10 1
10010
100 10000
1000
1000 100000
10000 100000
RL ( �� RL ( ��
MaximumMaximum
Vout-RL Vout-RL
[Vdd=6.0V]
[Vdd=6.0V]
7.0
RL is connected
RL isbetween
connected
Vout
between
and Vss.
Vout and Vss.
Vid=100mVVid=100mV
6.0
Top=-40�Top=-40�
5.0
Top=+25 �
Top=+25 �
4.0
Maximum Vout (V)
30
60
Short Circuit Current (mA)
40
Vout to Vss Vout
short,toVid=100mV
Vss short, Vid=100mV
120
Maximum Vout (V)
50
70
Maximum Vout (V)
60
Short Circuit
Short
Current-Vdd
Circuit Current-Vdd
Short Circuit Current (mA)
Short Circuit Current (mA)
70
3.0
2.0
1.0
1.0
0.0
1
0.0
10 1
Top=+85�
Top=+85�
10010
10000 100000
1000
1000 100000
100 10000
RL ( �� RL ( ��
Rev.1.0
9- 8
ELM822xA 1.5μA CMOS operational amplifier
http://www.elm-tech.com
2.0
1.5
1.0
0.5
RL (��
7.0
3.0
6.0
2.5
2.0
Top=+85 � Top=+85 �
1.5
Top=+25� Top=+25�
1.0
Top=-40
0.5� Top=-40�
10
0.0
RL (��
0
3.0
2.0
1.5
3.0
1.0
2.0
Vin
1.5
1.0
Vout
Vin (V)
0.5
Minimum Vout (V)
Top=+25 � Top=+25 �
0.5
10
0.0
1 100 10 1000 100100001000
10000 100000
100000
RL (��
RL (��
Minimum Vout-RL
Minimum
[Vdd=6.0V]
Vout-RL [Vdd=6.0V]
7.0
RL is connected
RLbetween
is connected
Vdd and
between
Vout. Vdd and Vout.
Vid=100mV Vid=100mV
6.0
5.0
4.0
3.0
Top=+85 � Top=+85 �
Top=+25� Top=+25�
2.0
10
RL (��
0.0
Vout
4.0
Top=+85� Top=+85�
Top=-40 � Top=-40 �
0.0
0.0
100000
10000 100000 1
1 100 10 1000 100100001000
0.5
1.51.0
Vout (V)
Vin
0.5
5.0
1.0
1.0 Top=-401.0
� Top=-40�
�
load, Top=25�
���load,
Unity Gain, 100k
Unity
Gain,Top=25
100k ���
Vin (V)
Vin (V)
3.5
RL is connected
RLbetween
is connected
Vdd and
between
Vout. Vdd and Vout.
Vid=100mV Vid=100mV
Pulse Response
Pulse[Vdd=1.5V]
Response [Vdd=1.5V]
1.0
0.5
RL (��
Minimum Vout-RL
Minimum
[Vdd=3.0V]
Vout-RL [Vdd=3.0V]
0.0
1
1.5
1.0
1.5
0.0
200 0 400 200 600 400 800 6001000 800
Time ( �s) Time ( �s)
0.0
1000 0
RL (��
RL (��
Pulse Response
Pulse[Vdd=3.0V]
Response [Vdd=3.0V]
3.0
�
load, Top=25�
���load,
Unity Gain, 100k
Unity
Gain,Top=25
100k ���
Vin
1.00.0
0.5
0.0
100000
10000 100000
1 100 10 1000 100100001000
2.0
1.0
Vin
0.0
Vout
Vout
3.0
3.0
2.0
2.0
1.0
0.0
200 0 400 200 600 400 800 6001000 800
Time ( �s) Time ( �s)
1.0
Vout (V)
2.5
Top=+25� Top=+25�
0.4
Minimum Vout (V)
Minimum Vout (V)
3.0
0.6
0.2
Top=+85 � Top=+85 �
Top=-40� Top=-40�
0.0
0.0
10 1 100 10 1000 100100001000
10000 100000 1
100000
0.0
1
3.5
0.8
1.5
Vout (V)
0.2
1.0
2.0
RL is connected
RLbetween
is connected
Vdd and
between
Vout. Vdd and Vout.
Vid=100mV Vid=100mV
Minimum Vout (V)
0.4
1.2
Minimum Vout-RL
Minimum
[Vdd=1.5V]
Vout-RL [Vdd=1.5V]
Vin (V)
0.6
RL is connected
RLbetween
is connected
Vdd and
between
Vout. Vdd and Vout.
Vid=100mV Vid=100mV
Vout (V)
0.8
2.0
Minimum Vout (V)
1.0
1.4
Minimum Vout (V)
1.2
Minimum Vout-RL
Minimum
[Vdd=1.2V]
Vout-RL [Vdd=1.2V]
Minimum Vout (V)
Minimum Vout (V)
1.4
0.0
1000
Rev.1.0
9- 9
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