ELM842B
CMOS Operational amplifier
■General description
ELM842B is low voltage and low power CMOS single operational amplifier which makes it easy to design
circuits and operates from a 1.2V single power source. As for power supply voltage, ELM recommends to use
within the range of 1 . 2 V to 5 . 5 V. The consumption current of ELM842B is low; on the other hand, since the
output stage of ELM842B is class A operation drive, ELM842B is able to provide current supply of 90μA (Typ.
At Vdd=1.5V). ELM842B is suitable for signal process of applications which require low power.
■Features
•
•
•
•
•
•
Operation from a single power source
Input available within the range of power supply voltage
Low voltage operation
: 1.2V≤Vdd≤5.5V
Low current consumption : 130μA (Typ.Vdd=1.5V)
Unity gain bandwidth
: 1.0MHz (Typ.Vdd=1.5V)
Package
: SOT-25
■Application
• Battery-operated portable devices
• Signal process in low power circuit
• Low voltage analog circuit
■Maximum absolute ratings
Parameter
Power supply voltage
Input voltage
Differential input voltage
Output voltage
Output short circuit
Power dissipation
Operating temperature
Storage temperature
Symbol
Vdd
Vin
Vid
Vout
Pd
Top
Tstg
Limit
10
Vss-0.3 to Vdd+0.3
Vdd-Vss
Vss-0.3 to Vdd+0.3
Continuous
300
-30 to +80
-55 to +125
Unit
V
V
V
V
Sec.*
mW
°C
°C
* When power supply voltage is below 5.0V, short of output terminal will do no damage to the IC.
When power supply voltage is above 5.0V, it may cause short of VDD and result in reliability damage of the IC.
■Suggested operating condition
Parameter
Power supply voltage
Operating temperature
Symbol
Vdd
Top
Min.
1.2
-20
Typ.
Max.
5.5
+70
Unit
V
°C
■Selection guide
ELM842B-x
Symbol
a
b
Product version
Taping direction
B
S, N : Refer to PKG file
ELM842 B - x
↑ ↑
a b
■Pin configuration
SOT-25 (TOP VIEW)
Pin No.
1
2
3
4
5
Pin name
OUT
VDD
IN+
IN-
VSS
■Standard circuit
4-1