Rev 0.3
DIO234X/B
Ultra Low Vos, Low Power Amplifier
Features
Ultra low V
OS
: DIO234X:35μV(Max)
DIO234XB:70μV(Max)
Low Power: 1.1μA(typ.)
Unity Gain Stable
Gain Bandwidth Product: 30kHz(typ.)
Wide supply range: 1.8V to 5.5V
Available in SOT23-5, SOT23-6, SOIC-8,
MSOP-8, SOIC-14 and TSSOP-14 packages
Temperature Range: -40°C to 125°C
Descriptions
DIO234X/B is a family of ultra low V
OS
operational
amplifier, with rail-to-rail CMOS input/output and
single/dual channels selectable. DIO234X/B family
has a gain-bandwidth product of 30kHz(typ.), wide
operating supply voltage from 1.8V to 5.5V and
broad output voltage swing.
DIO234X/B consumes ultra low power, with each
channel 1.1μA(typ.) of bias current, which makes
DIO234X/B be ideal for battery powered device,
temperature-sense device, etc.
Typical Applications
Rf
V+
VOUT
Rg
VREF
Gain= 1+
VI N
V-
Non-Inverting Amplifier
DIO234X/B
Rf
Rg
Applications
Toll Booth Tags
Wearable Products
Battery Current Monitoring
Sensor Conditioning
Battery Powered
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© 2018 DIOO MICROCIRCUITS CO., LTD
DIO234X/B• Rev. 0.3
DIO234X/B
Ultra Low Vos, Low Power Amplifier
Ordering Information
Order Part Number
DIO2341ST5
DIO2341BST5
DIO2341SO8
DIO2341BSO8
DIO2341MP8
DIO2341BMP8
DIO2341DST6
DIO2341DBST6
DIO2342SO8
DIO2342BSO8
DIO2342MP8
DIO2342BMP8
DIO2343SO8
DIO2343BSO8
DIO2343MP8
DIO2343BMP8
DIO2344SO14
DIO2344BSO14
DIO2344TP14
DIO2344BTP14
Top Marking
41YW
41YW
DIO2341
DIO2341
DIO2341
DIO2341
41DW
41DW
DIO2342
DIO2342
DIO2342
DIO2342
DIO2343
DIO2343
DIO2343
DIO2343
DIO2344
DIO2344
DIO2344
DIO2344
Green or RoHS
Green or RoHS
Green or RoHS
Green or RoHS
Green or RoHS
Green or RoHS
Green or RoHS
Green or RoHS
Green or RoHS
Green or RoHS
Green or RoHS
Green or RoHS
Green or RoHS
Green or RoHS
Green or RoHS
Green or RoHS
Green or RoHS
Green or RoHS
Green or RoHS
Green or RoHS
T
A
-40 to 125°C
-40 to 125°C
-40 to 125°C
-40 to 125°C
-40 to 125°C
-40 to 125°C
-40 to 125°C
-40 to 125°C
-40 to 125°C
-40 to 125°C
-40 to 125°C
-40 to 125°C
-40 to 125°C
-40 to 125°C
-40 to 125°C
-40 to 125°C
-40 to 125°C
-40 to 125°C
-40 to 125°C
-40 to 125°C
SOT23-5
SOT23-5
SOIC-8
SOIC-8
MSOP-8
MSOP-8
SOT23-6
SOT23-6
SOIC-8
SOIC-8
MSOP-8
MSOP-8
SOIC-8
SOIC-8
MSOP-8
MSOP-8
SOIC-14
SOIC-14
TSSOP-14
TSSOP-14
Package
Tape & Reel, 3000
Tape & Reel, 3000
Tape & Reel, 2500
Tape & Reel, 2500
Tape & Reel, 3000
Tape & Reel, 3000
Tape & Reel, 3000
Tape & Reel, 3000
Tape & Reel, 2500
Tape & Reel, 2500
Tape & Reel, 3000
Tape & Reel, 3000
Tape & Reel, 2500
Tape & Reel, 2500
Tape & Reel, 3000
Tape & Reel, 3000
Tape & Reel, 2500
Tape & Reel, 2500
Tape & Reel, 2500
Tape & Reel, 2500
Ordering Information Complimentary Note
Ordering Code = Part No. + Package Code
ST5: stands for SOT23-5
ST6: stands for SOT23-6
SO8: stands for SOIC-8
DIO2341/1B/1D/1DB
DIO2342/2B
DIO2343/3B
DIO2344/4B
MP8: stands for MSOP-8
SO14: stands for SOIC-14
TP14: stands for TSSOP-14
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© 2018 DIOO MICROCIRCUITS CO., LTD
DIO234X/B• Rev. 0.3
DIO234X/B
Ultra Low Vos, Low Power Amplifier
Pin Assignments
MSOP-8 / SOIC-8
SO T23-5
OUT
V-
+IN
1
2
+
-
NC
5
V+
1
2
3
4
DIO2341
8
7
6
5
NC
V+
OUT
NC
-IN
+IN
3
DIO2341
4
-IN
V-
SOIC-8/M SOP-8
OUTA
SO T23-6
OUT
V-
+IN
1
2
+
-
1
2
3
4
D IO 2342
8
- +
+ -
7
6
5
V+
O UTB
-IN B
+IN B
6
5
4
DIO2341D
V+
CS
-IN
-INA
+INA
V-
3
TSSOP-14/SOIC-14
OUTA
-INA
MSOP-8 / SO IC-8
NC
-IN
+IN
V-
1
2
3
4
DIO2343
8
7
6
5
CS
V+
OUT
NC
1
-
14
-
+
OUTD
-IND
+IND
V-
+INC
-INC
OUTC
2
3
4
13
12
11
+INA
V+
+INB
-INB
OUTB
6
7
Figure 1 Top View
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© 2018 DIOO MICROCIRCUITS CO., LTD
DIO234X/B• Rev. 0.3
+
5
+
-
+
-
10
9
8
DIO2344
DIO234X/B
Ultra Low Vos, Low Power Amplifier
Pin Description
Pin name
V+
V-
+INX
-INX
OUTX
NC
CS
Description
Positive supply
Negative supply
Positive Input
Negative Input
Output
No connect
Power saving Chip Select
Absolute Maximum Ratings
Stresses beyond those listed under “Absolute Maximum Rating” may cause permanent damage to the device. These are stress
ratings only and functional operation of the device at these or any other condition beyond those indicated in the operational sections
of the specifications is not implied. Exposure to absolute maxim rating conditions for extended periods may affect device reliability.
Parameter
V+ – V-
Current at Input Pins
Analog Inputs (+INX, -INX)
(1)
All Other Inputs and Outputs
Difference Input Voltage
Output Short-Circuit Current
Current at Output and Supply Pins
Storage Temperature
Maximum Junction Temperature(T
J
)
ESD protection on all pins (HBM)
SOT23-5
SOIC-8
Package Thermal Resistance(θ
JA
)
MSOP-8
SOIC-14
TSSOP-14
Operating Temperature Range(T
A
)
Rating
7
±2
(V-)-1.0V to (V+)+1.0V
(V-)-0.3V to (V+)+0.3V
|V+ – V-|
Continuous
±30
-65 to 150
150
4
256
163
206
120
100
-40~125
Unit
V
mA
V
V
mA
°C
°C
kV
°C/W
°C/W
°C/W
°C/W
°C/W
°C
Note:(1)Input voltage and current limits.
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© 2018 DIOO MICROCIRCUITS CO., LTD
DIO234X/B• Rev. 0.3
DIO234X/B
Ultra Low Vos, Low Power Amplifier
DC Electrical Characteristics
Unless otherwise indicated, V+=1.8V to 5.5V, V-=GND, T
A
=25°C, V
CM
=V+/2, R
L
=1MΩ to V
CM
.
Symbol
Input Offset
V
OS
△V
OS
/
△T
A
PSRR
Parameter
Conditions
Min.
Typ.
Max.
Unit
Input Offset Voltage
Input Offset Drift with
Temperature
Power Supply Rejection
Ratio
V+=1.8~5.5V ,V
CM
=(V+)/2
DIO234X
DIO234XB
-35
-70
±0.15
35
70
μV
T
A
=-40°C to 125°C,V+=1.8~5.5V,
V
CM
=(V+)/2
V
CM
=(V+)/2
100
µV/°C
110
dB
Input Bias Current and Impedance
T
A
=25°C
I
B
Input Bias Current
T
A
=85°C
T
A
=125°C
I
OS
Z
CM
Input Offset Current
Common Mode Input
Impedance
Differential Input
Impedance
±1.0
60
2000
±1.0
10
13
||6
pA
pA
pA
pA
Ω||pF
Z
DIFF
10
13
||6
Ω||pF
Common Mode
V
CMR
Common Mode Input
Voltage Range
Common Mode Rejection
Ratio
V
CM
from (V-)-0.1 to (V+)+0.1
(V-)-
0.1
100
110
(V+)+
0.1
V
CMRR
dB
Open-Loop Gain
A
OL
Output
V
OL
V
OH
I
SC
Output Voltage Low
Output Voltage High
Output Short-Circuit
Current
V+=5V,R
L
=50k to V+/2
V+=5V,R
L
=50k to GND
V+=1.8V
V+=5V
2.4
4.994
30
30
mV
V
mA
DC Open-Loop Gain
(Large Signal)
0.2V<V
OUT
< (V+ – 0.2V), R
L
=50kΩ to V
L
120
dB
Power Supply
V+=5V,V
PP
=2V,R
L
=50k,
THD
Frequency=100Hz
V+=5V, V
PP
=2V, R
L
=50k,
Frequency=200Hz
0.04
%
0.14
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© 2018 DIOO MICROCIRCUITS CO., LTD
DIO234X/B• Rev. 0.3
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