Rev 1.0
DIO20921/1D/2/4
4μA，Rail-to-Rail Input/ Output Low Power Amplifier
Features
Ultra low power: 4μA per channel
Unity Gain Stable
Gain Bandwidth Product: 150kHz
Wide supply range: 1.8V to 5.5V
Available in SOT23-5, SOT23-6, SOIC-8,
MSOP-8, SOP-14 and TSSOP-14 packages
Temperature Range:
-Industrial: -40°C to +85°C
-Extended: -40°C to +125°C
Descriptions
DIO2092x
operational
is
a
family
of
with
ultra
low
power
CMOS
amplifier,
rail-to-rail
input/output and single/dual channels selectable.
DIO2092x family has a gain-bandwidth product of
150kHz, wide operating supply voltage from 1.8V
to 5.5V and broad output voltage swing.
DIO2092x consumes ultra low power, with each
channel 4μA of bias current, which makes
DIO2092x be ideal for battery powered device,
temperature-sense device, etc.
The DIO2092x operational amplifier family is
available in single (DIO20921/1D), and dual
(DIO20922), and quad (DIO20924) configurations.
Furthermore, the DIO20921 is offered in the
5-lead SOT23 package. All types of amplifiers are
fully specified over the extended -40°C to +125°C
temperature range.
Typical Applications
Applications
Portable Equipment
Active Filters
Data Acquisition
Portable Equipment
Test Equipment
Broadband Communication
Process Control
Audio and Video Processing
Ordering Information
Order Part
Number
DIO20921ST5
DIO20921SO8
DIO20921MP8
DIO20921DST6
DIO20921DSO8
DIO20921DMP8
DIO20922SO8
DIO20922MP8
DIO20924CS14
DIO20924TP14
Top Marking
W921
D20921
D20921
W92D
D20921D
D20921D
D20922
D20922
D20924
D20924
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
SOT23-5
SOIC-8
MSOP-8
SOT23-6
SOIC-8
MSOP-8
SOIC-8
MSOP-8
SOP-14
TSSOP-14
Package
Tape & Reel, 3000
Tape & Reel, 2500
Tape & Reel, 3000
Tape & Reel, 3000
Tape & Reel, 2500
Tape & Reel, 3000
Tape & Reel, 2500
Tape & Reel, 3000
Tape & Reel, 2500
Tape & Reel, 2500
www.dioo.com
© 2018 DIOO MICROCIRCUITS CO., LTD
DIO20921/1D/2/4• Rev. 1.0
DIO20921/1D/2/4
4μA, Rail-to-Rail Input/ Output Low Power Amplifier
Pin Assignments
MSOP-8 / SOIC-8
NC
-IN
+IN
V-
1
2
3
4
DIO20921D
8
7
6
5
SHDN
V+
OUT
NC
Figure 1 Top View
Pin Description
Pin name
V+
V-
+INX
-INX
OUTX
SHDN
Description
Positive supply
Negative supply
Positive Input
Negative Input
Output
Active Low Shutdown
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© 2018 DIOO MICROCIRCUITS CO., LTD
DIO20921/1D/2/4• Rev. 1.0
DIO20921/1D/2/4
4μA, Rail-to-Rail Input/ Output Low Power Amplifier
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
Supply Voltage ( V+ – V-)
Input Voltage
Difference Input Voltage
Storage Temperature Range
Junction Temperature
Lead Temperature Range
HBM, JEDEC: JESD22-A114
ESD
CDM, JEDEC: JESD22-C101
Rating
7
(V-)-0.3V to (V+)+0.3V
|V+ – V-|
-65 to 150
150
260
8
Unit
V
V
V
°C
°C
°C
kV
2
Recommended Operating Conditions
The Recommended Operating Conditions table defines the conditions for actual device operation to ensure optimal performance to
the datasheet specifications. DIOO does not recommend exceeding them or designing to Absolute Maximum Ratings.
Parameter
Supply Voltage
Input Voltage
Operating Temperature Range
Rating
1.8 to 5.5
0 to 5
-40 to 125
Unit
V
V
°C
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© 2018 DIOO MICROCIRCUITS CO., LTD
DIO20921/1D/2/4• Rev. 1.0
DIO20921/1D/2/4
4μA, Rail-to-Rail Input/ Output Low Power Amplifier
Electrical Characteristics
Typical value: V+=5V, R
L
=100kΩ to V+/2, V
CM
=1/2V+, T
A
= 25°C, unless otherwise specified.
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Unit
INPUT CHARACTERISTICS
V
OS
I
B
I
OS
V
CM
CMRR
A
OL
∆V
OS
/∆
T
Input Offset Voltage
Input Bias Current
Input Offset Current
Common Mode Voltage Range
Common Mode Rejection Ratio
Open Loop Voltage Gain
Input Offset Voltage Drift
-40°C≤T
A
≤125°C,
R
L
=100kΩ, V
O
= 0.1 to (V+)-0.1
-40°C≤T
A
≤125°C
70
-40°C≤T
A
≤125°C, V+=1.8V to 5.5V
V+=1.8V to 5.5V
V+=1.8V to 5.5V
-0.1
130
105
±5
-5
1
1
(V+)
+0.1
+5
mV
pA
pA
V
dB
dB
µV/°C
OUTPUT CHARACTERISTICS
V
OH
V
OL
I
SC
Output Voltage High
Output Voltage Low
Output Short Circuit Current
Sink I
SC
, V+=5V
POWER SUPPLY
PSRR
I
Q
I
Q(off)
I
SHDN
I
LEAK
V
IL
V
IH
Power Supply Rejection Ration
Supply Current per Channel/Amp
Supply Current in Shutdown
Shutdown Pin Current
Output Leakage Current in
Shutdown
SHDN Input Low Voltage
SHDN Input High Voltage
V
SHDN
=0V
Disable
Enable
1.1
-40°C≤T
A
≤125°C
V
SHDN
=0V
100
4
3
-10
3.6
0.5
dB
μA
nA
pA
pA
V
V
24
R
L
=100kΩ -40°C≤T
A
≤125°C
R
L
=100kΩ -40°C≤T
A
≤125°C
Source I
SC
, V+=5V
4.995
5
24
mA
V
mV
DYNAMIC PERFORMANCE
GBP
SR
t
S
Θm
tr
Gain Bandwidth Product
Slew Rate
Setting Time
Phase Margin
Overload Recovery Time
C
L
=100pF
G=1, 2V Output Step
G=1, 2V Output Step
150
70
20
60
166
kHz
V/ms
µs
Deg
µs
NOISE PERFORMANCE
THD
e
n
Total Harmonic Distortion
Voltage Noise Density
f=100Hz, 4V
PP
, R
L
=100kΩ,
f=1kHz
0.09
103
%
nV/√Hz
Specifications subject to change without notice.
www.dioo.com
© 2018 DIOO MICROCIRCUITS CO., LTD
DIO20921/1D/2/4• Rev. 1.0
DIO20921/1D/2/4
4μA, Rail-to-Rail Input/ Output Low Power Amplifier
Typical Performance Characteristics
Supply Current vs. Supply Voltage Per Channel
Supply Current vs. Temperature
I
SOURCE
vs. Output Voltage
I
SINK
vs. Output Voltage
Gain vs. Frequency
Input Offset Voltage vs. Temperature
www.dioo.com
© 2018 DIOO MICROCIRCUITS CO., LTD
DIO20921/1D/2/4• Rev. 1.0
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