Rev 1.0
DIO233X/B
Ultra Low Vos, Low Power Amplifier
Features
Ultra low V
OS
: DIO233X:15μV(Max)
DIO233XB:35μV(Max)
Low Power: 1.0μA(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
DIO233X/B is a family of ultra low V
OS
operational
amplifier, with rail-to-rail CMOS input/output and
single/dual channels selectable. DIO233X/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.
DIO233X/B consumes ultra low power, with each
channel 1.0μA(typ.) of bias current, which makes
DIO233X/B be ideal for battery powered device,
temperature-sense device, etc.
Typical Applications
Rf
V+
VOUT
Rg
VI N
Gain= 1+
VREF
V-
Non-Inverting Amplifier
DIO233X/B
Rf
Rg
Applications
Toll Booth Tags
Wearable Products
Battery Current Monitoring
Sensor Conditioning
Battery Powered
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© 2019 DIOO MICROCIRCUITS CO., LTD
DIO233X/B• Rev. 1.0
DIO233X/B
Ultra Low Vos, Low Power Amplifier
Ordering Information
Order Part Number
DIO2331ST5
DIO2331BST5
DIO2331SO8
DIO2331BSO8
DIO2331MP8
DIO2331BMP8
DIO2331DST6
DIO2331DBST6
DIO2332SO8
DIO2332BSO8
DIO2332MP8
DIO2332BMP8
DIO2333SO8
DIO2333BSO8
DIO2333MP8
DIO2333BMP8
DIO2334SO14
DIO2334BSO14
DIO2334TP14
DIO2334BTP14
Top Marking
31YW
31YW
DIO2331
DIO2331
DIO2331
DIO2331
31DW
31DW
DIO2332
DIO2332
DIO2332
DIO2332
DIO2333
DIO2333
DIO2333
DIO2333
DIO2334
DIO2334
DIO2334
DIO2334
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
DIO2331/1B/1D/1DB
DIO2332/2B
DIO2333/3B
DIO2334/4B
MP8: stands for MSOP-8
SO14: stands for SOIC-14
TP14: stands for TSSOP-14
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© 2019 DIOO MICROCIRCUITS CO., LTD
DIO233X/B• Rev. 1.0
DIO233X/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
DIO2331
8
7
6
5
NC
V+
OUT
NC
-IN
+IN
3
DIO2331
4
-IN
V-
SOIC-8/M SOP-8
OUTA
SO T23-6
OUT
V-
+IN
1
2
+
-
1
2
3
4
DIO2332
8
- +
+ -
7
6
5
V+
OUTB
-INB
+INB
6
5
4
DIO2331D
-INA
V+
CS
-IN
+INA
V-
3
TSSOP-14/SOIC-14
OUTA
-INA
+INA
MSOP-8 / SOIC-8
NC
-IN
+IN
V-
1
2
3
4
DIO2333
8
7
6
5
CS
V+
OUT
NC
+
1
-
14
-
+
OUTD
-IND
+IND
V-
+INC
-INC
OUTC
2
3
4
5
6
7
13
12
11
V+
+INB
-INB
OUTB
Figure 1 Top View
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+
-
+
-
10
9
8
DIO2334
© 2019 DIOO MICROCIRCUITS CO., LTD
DIO233X/B• Rev. 1.0
DIO233X/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 maximum rating conditions for extended periods may affect device reliability.
Parameter
V+ – V-
Current at Input Pins
Input Voltage
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-)-0.3V to (V+)+0.3V
|V+ – V-|
Continuous
±30
-65 to 150
150
7.5
256
163
206
120
100
-40~125
Unit
V
mA
V
mA
°C
°C
kV
°C/W
°C/W
°C/W
°C/W
°C/W
°C
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© 2019 DIOO MICROCIRCUITS CO., LTD
DIO233X/B• Rev. 1.0
DIO233X/B
Ultra Low Vos, Low Power Amplifier
DC Electrical Characteristics
Unless otherwise indicated, V+=1.8V to 5.5V, V-=0, T
A
=25°C, V
CM
=V+/2, R
L
=1MΩ to V
CM
.
Symbol
Input Offset
Parameter
Conditions
Min.
Typ.
Max.
Unit
DIO233X
V
OS
Input Offset Voltage
V+=1.8~5.5V,V
CM
=(V+)/2
DIO233XB
-15
15
μV
-35
35
△V
OS
/
△T
A
PSRR
Input Offset Drift with
Temperature
Power Supply Rejection
Ratio
T
A
=-40°C to 125°C,V+=1.8~5.5V,
V
CM
=(V+)/2
±0.15
µV/°C
V
CM
=(V+)/2
100
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
Z
DIFF
Input Offset Current
Common Mode Input
Impedance
Differential Input Impedance
±1.0
60
2000
±1.0
10
13
||6
10
13
||6
pA
pA
pA
pA
Ω||pF
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
Power Supply
THD
V+=5V, V
PP
=2V, R
L
=50k,
Frequency=100Hz
0.13
%
4.8
4.994
3
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
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© 2019 DIOO MICROCIRCUITS CO., LTD
DIO233X/B• Rev. 1.0
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