ELM842xC

ELM842xC CMOS Low power operational amplifier
http://www.elm-tech.com
■General description
ELM842xC is low voltage and low power CMOS single operational amplifier which makes it easy to design
circuits and operates from 1.2V single power source. As for power supply voltage, ELM842xC can be used
within the range of 1.2V to 6.0V. The consumption current of ELM842xC is low; on the other hand, since the
output stage of ELM842xC is class A operation drive, ELM842xC is able to provide current supply 90μA(Typ.
under the conditions of Vdd=1.5V, Vout=0.75V and Top=25°C). ELM842xC is suitable for signal process of
applications which require low power.
■Features
■Application
•
•
•
•
•
• Battery-operated portable devices
• Signal process in low power circuit
• Low voltage analog circuit
Operation from a single power source
Low voltage operation
: 1.2V≤Vdd≤6.0V
Low current consumption : Typ.130μA(Vdd=1.5V)
Unity gain bandwidth
: Typ.1MHz
Package
: SOT-25, SC-70-5 (SOT-353)
■Maximum absolute ratings
Parameter
Power supply voltage
Input voltage
Output voltage
Output short 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
ELM842xC-x
Symbol
a
Package
b
c
Product version
Taping direction
B: SOT-25
C: SC-70-5(SOT-353)
C
S, N: Refer to PKG file
■Pin configuration
4
5
+
-
1
2
3
ELM842 x C - x
↑↑ ↑
ab c
■Standard circuit
Pin No.
1
2
3
4
5
Pin name
OUT
VDD
IN+
INVSS
ELM842xC
Rev.1.0
10 - 1
ELM842xC CMOS Low power 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≥40dB
Maximum output voltage swing
Voutsh Vid=100mV, RL=200kΩ to Vss
Minimum output voltage swing
Voutsl Vid=100mV, RL=10kΩ to Vdd
Source current
Isource Vout=0.75V, Vid=100mV
Sink current
Isink Vout=0.3V, Vid=100mV
Avd RL=200kΩ to Vss, Vcm=0.75V
Large-signal voltage gain
Common-mode rejection ratio
CMRR RL=200kΩ to Vss, Vcm=0.75V
Supply voltage rejection ratio
PSRR RL=200kΩ 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=200kΩ, 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≥40dB
Maximum output voltage swing
Voutsh Vid=100mV, RL=200kΩ to Vss
Minimum output voltage swing
Voutsl Vid=100mV, RL=10kΩ to Vdd
Source current
Isource Vout=1.5V, Vid=100mV
Sink current
Isink Vout=0.3V, Vid=100mV
Large-signal voltage gain
Avd RL=200kΩ to Vss, Vcm=1.5V
Common-mode rejection ratio
CMRR RL=200kΩ to Vss, Vcm=1.5V
Supply voltage rejection ratio
PSRR RL=200kΩ 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=200kΩ, 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
0.08
1.42
40
1.0
90
2.5
110
90
70
130
±6
mV
1.0
1.45
nA
V
V
V
μA
mA
dB
dB
dB
0.10
310
μA
0.45
100
4.0
1
1.00
Min.
Vss=0V, Top=25°C
Typ. Max. Unit
0.04
2.80
45
3.0
100
7.5
110
110
100
140
0.45
110
25
1
1.00
μA
mA
MHz
V/μs
±6
mV
1.0
2.90
nA
V
V
V
μA
mA
dB
dB
dB
0.10
360
μA
μA
mA
MHz
V/μs
Rev.1.0
10 - 2
ELM842xC CMOS Low power operational amplifier
http://www.elm-tech.com
■Note
1) Load resistance
ELM842xC is designed for low power consumption applications; hence, the output source current is only
90μA (Typ. under the conditions of at Vdd=1.5V, Vout=0.75V and Top=25°C). As a result, ELM842xC is
not able to maintain output voltage swing when trying to drive small load resistance. Considering this, load
and feedback resistance for ELM842xC should be selected carefully.
ELM recommends the following load/feedback resistors depending on power supply voltage range.
< Power supply voltage >
< total resistance value of load/feedback resistor >
Vdd≤5.5V
:
R≥250kΩ
Vdd≤3.6V
:
R≥200kΩ
Vdd≤1.8V
:
R≥150kΩ
2) Operation from single power source
ELM842xC is designed to be most suitable for single power source; therefore, ELM842xC is able to share
power supply with logic circuit one. Meanwhile, ELM842xC can also operate from double power sources.To
protect power supplies of ELM842xC 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, ELM842xC is able to drive capacitive load of 100pF directly without
oscillation.
b) fig-2
a) fig-1
4) Operation at Vdd<1.2V
ELM842xC is able to maintain operation when supply voltage is below 1.2V (Vdd≥1.2V) since all input
voltage is acceptable within the range of power supply voltage. However, AC characteristics will become
weak under this situation because of the decrease of bias current in the IC. For further information, please
contact ELM.
Rev.1.0
10 - 3
ELM842xC CMOS Low power operational amplifier
http://www.elm-tech.com
■Marking
SOT-25
Symbol
a, b
c
d
SC-70-5
Mark
5C
>2
0 to 9 and A to Z
(I, O, X excepted.)
0 to 9 and A to Z
(I, O, X excepted.)
Content
ELM842BC (SOT-25)
ELM842CC (SC-70-5)
Lot No.
Lot No.
Rev.1.0
10 - 4
ELM842xC CMOS Low power operational amplifier
http://www.elm-tech.com
150
100
100
50
50
250
200
200
150
150
100
50
50
0
0.0
120
100
100
80
80
Avd (dB)
Avd (dB)
3.0
2.0
4.0
3.0
5.0
4.0
Vdd (V)
Vdd (V)
6.0
5.0
40
20
20
0
0
150
Vdd=3.0V
Vdd=3.0V
150
100
100
50
50
0
-40
2.0
1.5
Input Input
Voltage
(V) (V)
Voltage
3.0
2.5
Vdd=6.0V
Vdd=6.0V
Vdd=3.0V
Vdd=3.0V
Vdd=1.2V
Vdd=1.2V
100
1000 10000
100 10000
10 1000
Frequency
(kHz)(kHz)
Frequency
40
20
20
0
60
40
�) ( �)
Top (Top
80
60
80
OffsetOffset
Voltage
distribution
Voltage
distribution
Unity Gain,
Vcm=1.5V,
UnityVdd=3.0V,
Gain, Vdd=3.0V,
Vcm=1.5V,
�
No load,
�
NoTop=25
load, Top=25
5.0
2.0
0.0
4.0
2.0
OffsetOffset
Voltage
(mV) (mV)
Voltage
�
load,���
Top=25
Vcm=Vdd/2,
200k���
�
load, Top=25
Vcm=Vdd/2,
200k
10
1
0
-20
0
0
-6.0 -6.0
-4.0 -4.0
-2.0 -2.0
0.0
3.0
Avd-Frequency
Avd-Frequency
-20 -20
1
0.1 0.1
0.01 0.01
0.001 0.001
Vdd=1.2V
Vdd=1.2V
10.0 10.0
5.0
2.5
2.0
Vdd=1.5V
Vdd=1.5V
15.0 15.0
� �
Top=-40
Top=-40
1.5
1.0
Vdd=6.0V
Vdd=6.0V
20.0 20.0
� �
Top=+85
Top=+85
1.0
0.5
Unity Gain,
No loadNo load
UnityVcm=Vdd/2,
Gain, Vcm=Vdd/2,
0
-20
-40
25.0 25.0
Unity Gain,
No loadNo load
UnityVdd=3.0V,
Gain, Vdd=3.0V,
Vdd=1.5V
Vdd=1.5V
60
40
200
6.0
Iss-Input
Voltage
Iss-Input
Voltage
0
0.5
0.0
120
60
2.0
1.0
� �
Top=+25
Top=+25
100
200
� �
Top=-40
Top=-40
0
1.0
0.0
250
Iss (�A)
Iss (�A)
0
0.0
� �
Top=+25
Top=+25
Percent (%)
150
Iss (�A)
� �
Top=+85
Top=+85
250
Iss (�A)
200
Iss-Top
Iss-Top
250
Percent (%)
200
Iss-Vdd
Iss-Vdd
Unity Gain,
No loadNo load
UnityVcm=Vdd/2,
Gain, Vcm=Vdd/2,
120
120
100
100
80
80
Avd (dB)
250
Avd (dB)
250
Iss (�A)
Iss (�A)
■Typical characteristics
60
60
40
40
20
20
0
0
6.0
4.0
6.0
Avd-Frequency
Avd-Frequency
load���load
Vdd=3.0V,
Vcm=1.5V,
200k���200k
Vdd=3.0V,
Vcm=1.5V,
� �
Top=+85
Top=+85
� �
Top=+25
Top=+25
� �
Top=-40
Top=-40
-20 -20
1
0.1 0.1
0.01 0.01
0.001 0.001
10
1
100
1000 10000
100 10000
10 1000
Frequency
(kHz)(kHz)
Frequency
Rev.1.0
10 - 5
ELM842xC CMOS Low power operational amplifier
http://www.elm-tech.com
CMRR-Frequency
CMRR-Frequency
CMRR-Frequency
CMRR-Frequency
60
60
Vdd=6.0V
Vdd=6.0V
40
Vdd=1.5V
Vdd=1.5V
Vdd=1.2V
Vdd=1.2V
20
0
10
1
CMRR-Vcm
CMRR-Vcm
[Vdd=1.2V]
[Vdd=1.2V]
120 120
40
40
20
20
� �
Top=+25
Top=+25
0
0.2
0.0
120 120
0.4
0.2
0.6
0.4
0.8
0.6
Vcm Vcm
(V) (V)
1.0
0.8
1.2
1.0
CMRR-Vcm
CMRR-Vcm
[Vdd=3.0V]
[Vdd=3.0V]
60
60
40
40
20
20
� �
Top=-40
Top=-40
� �
Top=+25
Top=+25
0
0.0
0.5
0.5
1.0
Vcm Vcm
(V) (V)
1.0
1.5
1.5
CMRR-Vcm
CMRR-Vcm
[Vdd=6.0V]
[Vdd=6.0V]
load���load
Frequency=10Hz,
Frequency=10Hz,
Unity Gain,
Unity200k
Gain,���
200k
100 100
80
80
60
� �
Top=-40
Top=-40
60Top=+85
� �Top=+25
Top=+85
� �
Top=+25
40
40
20
20
0.5
1.0
1.0
1.5
1.5
2.0
Vcm Vcm
(V) (V)
2.0
2.5
2.5
3.0
CMRR (dB)
CMRR (dB)
CMRR (dB)
80
120 120
100 100
0
0.0
0.5
80
0
0.0
1.2
load���load
Frequency=10Hz,
Frequency=10Hz,
Unity Gain,
Unity200k
Gain,���
200k
0
0.0
CMRR-Vcm
CMRR-Vcm
[Vdd=1.5V]
[Vdd=1.5V]
� �
100 Top=+85
100 Top=+85
CMRR (dB)
CMRR (dB)
CMRR (dB)
60
10 1000
100
100 10000
1000 10000
load���load
Frequency=10Hz,
Frequency=10Hz,
Unity Gain,
Unity200k
Gain,���
200k
100 100 Top=+85
� � Top=-40
Top=+85
� �
Top=-40
60
1
10
Frequency
Frequency
(kHz)(kHz)
load���load
Frequency=10Hz,
Frequency=10Hz,
Unity Gain,
Unity200k
Gain,���
200k
80
0
-20 -20
0.001 0.001
0.01 0.01
0.1 0.1
1
1000 10000
100
100 10000
10 1000
Frequency
Frequency
(kHz)(kHz)
0
0.0
� �
Top=+85
Top=+85
40
� �
Top=-40
Top=-40
20 20
0
-20 -20
1
0.1 0.1
0.01 0.01
0.001 0.001
80
60
40
0
120 120
60
CMRR (dB)
20
80
CMRR (dB)
40
80
CMRR (dB)
80
120 120
Unity Gain,
UnityVdd=3.0V,
Gain, Vdd=3.0V,
� �
Top=+25
Top=+25
load���load
Vcm=1.5V,
Vcm=1.5V,
200k ���
200k
100 100
CMRR (dB)
80
CMRR (dB)
CMRR (dB)
120 120
Unity Gain,
UnityVcm=Vdd/2,
Gain, Vcm=Vdd/2,
Vdd=3.0V
Vdd=3.0V
�
�
load,���
Top=25
load, Top=25
200k ���
200k
100 100
80
80
60
� � Top=+25
Top=+85
� �
Top=+25
60 Top=+85
40
40
20
20
0
0.0
3.0
0
0.0
1.0
� �
Top=-40
Top=-40
1.0
2.0
2.0
3.0
3.0
4.0
Vcm Vcm
(V) (V)
4.0
5.0
5.0
6.0
6.0
Rev.1.0
10 - 6
ELM432xC CMOS Low power operational amplifier
http://www.elm-tech.com
40
40 Vdd=1.5V
Vdd=1.5V
0
Vdd=1.2V
Vdd=1.2V
20
-20 -20
0.1 0.11
0.01 0.01
110
1.2 1.2
SR-Vdd
SR-Vdd
�) �)
RisingRising
edge (Top=+85
edge (Top=+85
�) �)
FallingFalling
edge (Top=+25
edge (Top=+25
�) �)
RisingRising
edge (Top=+25
edge (Top=+25
Isource (�A)
Isource (�A)
80
60
60
40
40
20
FallingFalling
edge edge
1.0 1.0
RisingRising
edge edge
�) �)
RisingRising
edge (Top=-40
edge (Top=-40
Vdd Vdd
(V) (V)
80
SR-Top
SR-Top
0.5 0.5
�) �)
FallingFalling
edge (Top=-40
edge (Top=-40
0
0
1.0 1.02.0 2.03.0 3.04.0 4.05.0
100 100
10
100 100
1000 1000
1000010000
load���load
Vdd=3.0V,
Vdd=3.0V,
Unity Unity
Gain, 200k
Gain, ���
200k
1.5 1.5
0
0
-20 -200
-40 -40
5.06.0 6.0
Isource-Vout
Isource-Vout
[Vdd=1.2V]
[Vdd=1.2V]
160 160
Vid=100mV
Vid=100mV
� �
Top=+85
Top=+85
� �
Top=+25
Top=+25
� �
Top=-40
Top=-40
020
4060
2040
Top (Top
�) ( �)
6080
80
Isource-Vout
Isource-Vout
[Vdd=1.5V]
[Vdd=1.5V]
Vid=100mV
Vid=100mV
� �
Top=+85
140 140 Top=+85
Isource (�A)
0.2 0.2
110
�) �)
FallingFalling
edge (Top=+85
edge (Top=+85
0.6 0.6
0.4 0.4
0
2.0 2.0
load���load
Unity Unity
Gain, 200k
Gain,���
200k
1.0 1.0
0.8 0.8
� �
Top=+25
Top=+25
40
� �
Top=-40
Top=-40
20 20
40
Frequency
Frequency
(kHz)(kHz)
SR (V/�s)
1.4 1.4
SR (V/�s)
SR (V/�s)
1.6 1.6
� �
Top=+85
60 Top=+85
-20 -20
0.01 0.01
0.1 0.11
1000010000
1000 1000
100 100
10
Frequency
Frequency
(kHz)(kHz)
1.8 1.8
60
0
0
2.0 2.0
80
SR (V/�s)
20
80
PSRR (dB)
60
Unity Unity
Gain, Vdd=3.0V,
Gain, Vdd=3.0V,
load���load
Vcm=1.5V,
Vcm=1.5V,
200k ���
200k
100 100
PSRR (dB)
60
PSRR-Frequency
PSRR-Frequency
120 120
Unity Unity
Gain, Vcm=Vdd/2,
Gain, Vcm=Vdd/2,
Vdd=3.0V
Vdd=3.0V
�
�
load,
load, Top=25
���Top=25
200k ���
200k
80 Vdd=6.0V
80 Vdd=6.0V
PSRR (dB)
PSRR (dB)
100 100
PSRR-Frequency
PSRR-Frequency
20
0
0
0.0 0.0
0.2 0.2
0.4 0.4
0.6 0.6
0.8 0.8
1.0 1.0
1.2 1.2
120 120
Isource (�A)
120 120
80
80
60
60
40
40
20
20
� �
Top=+25
100 100 Top=+25
� �
Top=-40
Top=-40
0
0
0.0 0.0
VoutVout
(V) (V)
0.5 0.5
1.0 1.0
VoutVout
(V) (V)
1.5 1.5
Rev.1.0
10 - 7
ELM842xC CMOS Low power operational amplifier
http://www.elm-tech.com
Isource-Vout
Isource-Vout
[Vdd=3.0V]
[Vdd=3.0V]
Isink-Vout
Isink-Vout
[Vdd=1.2V]
[Vdd=1.2V]
�
�
Top=+85Top=+85
�
�
Top=+25Top=+25
0
0.8 1.21.0
0.20.0 0.4
0.2 0.60.4 0.80.6 1.0
Vout (V)
Vout (V)
35
Vid=100mV
Vid=100mV
15
10
10
5
5
0
0.0
�
�
Top=+85Top=+85
�
�
Top=+25Top=+25
Vout (V)
Vout (V)
3.0
2.0
80
60
40
�
�
Top=+85Top=+85
�
�
Top=+25Top=+25
Isource (�A)
1.0
0
0.0 0.5
0.5 1.0
Vout (V)
Vout (V)
120
1.0 1.5
1.5
Vid=100mV
Vid=100mV
100
�
�
Top=-40Top=-40
20
0
0.50.0 1.0
0.5 1.51.0 2.01.5 2.5
2.0 3.02.5
3.0
Isink-Vout
Isink-Vout
[Vdd=6.0V]
[Vdd=6.0V]
120
100
20
Vid=100mV
Vid=100mV
�
�
Top=-40Top=-40
4.0
0
0.0
Isink (mA)
Isink (mA)
Isink (mA)
30
�
�
Top=-40Top=-40
25
25
15
2.0
1.2
30
20
Isink-Vout
Isink-Vout
[Vdd=1.5V]
[Vdd=1.5V]
1.0
Isink-Vout
Isink-Vout
[Vdd=3.0V]
[Vdd=3.0V]
35
3.0
6.0
Vout (V)
Vout (V)
5.0
4.0
0.5
0
0.0
�
�
Top=-40Top=-40
0
1.00.0 2.0
1.0 3.02.0 4.03.0 5.0
4.0 6.05.0
Isink (mA)
Isink (mA)
0.5
1.0
100
50
5.0
Vid=100mV
Vid=100mV
�
�
Top=-40Top=-40
1.5
1.5
�
�
Top=+25Top=+25
0
0.0
3.0
Vout (V)
Vout (V)
2.0
Vid=100mV
Vid=100mV
150
50
0
0.50.0 1.0
0.5 1.51.0 2.01.5 2.5
2.0 3.02.5
2.0
Isink (mA)
�
�
Top=-40Top=-40
100
50
0
0.0
1.0
�
�
Top=+25Top=+25
150
Isink (mA)
50
100
200
�
�
Top=+85Top=+85
�
�
Top=+85Top=+85
Isource (�A)
100
150
Isource-Vout
Isource-Vout
[Vdd=6.0V]
[Vdd=6.0V]
200
Vid=100mV
Vid=100mV
Isink (mA)
150
200
Isource (�A)
Isource (�A)
200
0
0.0
80
60
40
�
�
Top=+85Top=+85
�
�
Top=+25Top=+25
20
0
1.00.0 2.0
1.0 3.02.0 4.03.0 5.0
4.0 6.05.0
Vout (V)
Vout (V)
6.0
Rev.1.0
10 - 8
ELM842xC CMOS Low power operational amplifier
http://www.elm-tech.com
Short Circuit
Short Current-Vdd
Circuit Current-Vdd
1.2
1.0
0.8
�
�
Top=+25Top=+25
0.6
0.4
�
�
Top=-40Top=-40
0.0
0.11
1.0
1 10
10100
RL (k ��
RL (k ��
100
1000
1000
�
�
Top=+85Top=+85
2.5
2.0
�
�
Top=+25Top=+25
1.5
1.0
0.5
0.5
0.0
0.1
0.0
0.11
�
�
Top=-40Top=-40
1 10
10100
RL (k ��
RL (k ��
100
1000
Short Circuit Current (mA)
20
0
1.0
1.5
1.0
0.5
1000
5.0
4.0
3.0
2.0
�
�
Top=-40Top=-40
60
40
�
�
Top=+25Top=+25
20
0
1.0
2.0
�
�
Top=+85Top=+85
2.0
3.0
3.0
4.0
4.0
5.0
Vdd (V)Vdd (V)
5.0
6.0
6.0
2.0
RL is connected
RL is connected
between Vout
between
and Vss.
Vout and Vss.
Vid=100mV
Vid=100mV
0.0
0.1
6.0
80
Maximum
Maximum
Vout-RL
Vout-RL
[Vdd=1.5V]
[Vdd=1.5V]
1.5
�
�
Top=+85Top=+85
�
�
Top=+25Top=+25
1.0
0.5
0.0
0.11
�
�
Top=-40Top=-40
1 10
10100
RL (k ��
RL (k ��
100
1000
1000
Maximum
Maximum
Vout-RL
Vout-RL
[Vdd=6.0V]
[Vdd=6.0V]
7.0
3.5
RL is connected
RL is connected
between Vout
between
and Vss.
Vout and Vss.
Vid=100mV
Vid=100mV
3.0
40
2.0
Maximum
Maximum
Vout-RL
Vout-RL
[Vdd=3.0V]
[Vdd=3.0V]
Maximum Vout (V)
1.5
6.0
�
�
Top=+85Top=+85
0.0
0.1
2.0
5.0
6.0
1.4
0.2
2.5
4.0
5.0
Vdd (V)Vdd (V)
0.2
3.0
3.0
4.0
RL is connected
RL is connected
between Vout
between
and Vss.
Vout and Vss.
Vid=100mV
Vid=100mV
3.5
Maximum Vout (V)
2.0
3.0
60
Vout to Vdd
Vout
short,
to Vdd
Vid=100mV
short, Vid=100mV
100
Maximum Vout (V)
0.4
50
80
120
7.0
RL is connected
RL is connected
between Vout
between
and Vss.
Vout and Vss.
Vid=100mV
Vid=100mV
Maximum Vout (V)
0.6
�
�
Top=-40Top=-40
0
1.0
2.0
Maximum Vout (V)
Maximum Vout (V)
0.8
�
�
Top=+25Top=+25
Maximum
Maximum
Vout-RL
Vout-RL
[Vdd=1.2V]
[Vdd=1.2V]
1.4
1.0
100
100
0
1.0
1.2
Short Circuit Current (mA)
50
�
�
Top=+85Top=+85
150
Maximum Vout (V)
100
Short Circuit
Short Current-Vdd
Circuit Current-Vdd
120
Vout to Vss
Vout
short,
to Vss
Vid=100mV
short, Vid=100mV
Maximum Vout (V)
150
200
Short Circuit Current (mA)
Short Circuit Current (mA)
200
6.0
5.0
4.0
�
�
Top=+85Top=+85
�
�
Top=+25Top=+25
3.0
2.0
1.0
1.0
0.0
0.1
0.0
0.11
�
�
Top=-40Top=-40
1 10
10100
RL (k ��
RL (k ��
100
1000
1000
Rev.1.0
10 - 9
ELM842xC CMOS Low power operational amplifier
http://www.elm-tech.com
Minimum
Minimum
Vout-RL
Vout-RL
[Vdd=1.2V]
[Vdd=1.2V]
0.8
0.6
0.6
0.4
0.4
0.2
0.2
0.0
1
0.0
110
6.0
2.0
1.5
1.5
1.0
1.0
�
�
Top=+85
Top=+85
�
�
Top=+25
Top=+25
�
�
Top=-40
0.5 Top=-40
0.0
1
0.0
110
1.5
1.5
1.0
1.0
10
100
100
1000
1000
10000 10000
100000 100000
RL (��RL (��
0.0
Vout Vout
1.5
1.0
1.0
0.5
2.0
4.0
4.0
6.0
6.0
8.0
Time (Time
�s) ( �s)
0.5
0.0
0.0
8.0
10.0 10.0
Vin (V)
1.5
Vout (V)
Vin
Vout (V)
Vin (V)
�
�
load, ���
Top=25
load, Top=25
���200k
Unity Gain,
Unity
200k
Gain,
0.0
2.0
�
�
Top=+25
Top=+25
1000
100
100
10
100000 100000
10000 10000
1000
RL (��RL (��
Minimum
Minimum
Vout-RL
Vout-RL
[Vdd=6.0V]
[Vdd=6.0V]
7.0
RL is connected
RL is connected
between between
Vdd and Vdd
Vout.and Vout.
Vid=100mV
Vid=100mV
6.0
5.0
5.0
4.0
4.0
3.0
3.0
2.0
2.0
�
�
Top=+85
Top=+85
�
�
Top=+25
Top=+25
1.0 Top=-40
1.0 Top=-40
�
�
Pulse Response
Pulse Response
[Vdd=1.5V]
[Vdd=1.5V]
Vin
0.5
�
�
Top=+85
Top=+85
0.0
110
Minimum Vout (V)
Minimum Vout (V)
Minimum Vout (V)
RL (��RL (��
3.0
2.0
0.0
0.5
7.0
2.5
0.0
0.5
0.0
1
100000 100000
10000 10000
1000
RL is connected
RL is connected
between between
Vdd and Vdd
Vout.and Vout.
Vid=100mV
Vid=100mV
0.5
1.0
3.5
2.5
0.5
1000
100
100
10
1.0
�
�
Top=-40
Top=-40
�
�
Top=-40
Top=-40
Minimum
Minimum
Vout-RL
Vout-RL
[Vdd=3.0V]
[Vdd=3.0V]
3.0
Vin (V)
�
�
Top=+85
Top=+85
Minimum Vout (V)
3.5
�
�
Top=+25
Top=+25
1.5
0.0
1
0.0
110
3.0
3.0
2.0
2.0
1.0
10
100
100
1000
1000
10000 10000
100000 100000
RL (��RL (��
Pulse Response
Pulse Response
[Vdd=3.0V]
[Vdd=3.0V]
0.0
�
�
load, ���
Top=25
load, Top=25
���200k
Unity Gain,
Unity
200k
Gain,
Vin
1.0
Vin
0.0
Vout Vout
0.0
2.0
0.0
3.0
3.0
2.0
2.0
1.0
4.0
2.0
6.0
4.0
8.0
6.0
Time (Time
�s) ( �s)
1.0
Vout (V)
0.8
1.5
Vout (V)
1.0
RL is connected
RL is connected
between between
Vdd and Vdd
Vout.and Vout.
Vid=100mV
Vid=100mV
Minimum Vout (V)
1.0
2.0
Vin (V)
1.2
Minimum Vout (V)
RL is connected
RL is connected
between between
Vdd and Vdd
Vout.and Vout.
Vid=100mV
Vid=100mV
1.2
Minimum
Minimum
Vout-RL
Vout-RL
[Vdd=1.5V]
[Vdd=1.5V]
2.0
1.4
Minimum Vout (V)
Minimum Vout (V)
1.4
0.0
0.0
10.0 10.0
8.0
Rev.1.0
10 - 10
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