UNISONIC TECHNOLOGIES CO., LTD
3422
HIGH PERFORMANCE DUAL
BIPOLAR OPERATINAL
AMPLIFIER
DESCRIPTION
LINEAR INTEGRATED CIRCUIT
The UTC
3422
is a dual high performances operational
amplifier featuring speed of 25MHz and single supply
operation from 3V ~ 36V.
The UTC
3422
is therefore an enhanced replacement of
standard dual operational amplifiers.
FEATURES
* Single Supply Operation: 3V ~ 36V
* Dual Supply Operation: ±1.5V ~ ±18V
* High Gain Bandwidth Product: 25MHz
* High Slew Rate: 15V/μs
* Low Voltage Noise: 14nV/√Hz
* No Phase Inversion
* ESD Tolerance: 2KV
* Latch-Up Immunity
ORDERING INFORMATION
Ordering Number
Lead Free
3422L-D08-T
-
Halogen Free
3422G-D08-T
3422G-S08-R
Package
DIP-8
SOP-8
Packing
Tube
Tape Reel
MARKING
DIP-8
SOP-8
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QW-R105-029.E
3422
PIN CONFIGURATION
LINEAR INTEGRATED CIRCUIT
BLOCK DIAGRAM (1/2 Shown)
20μA
20μA
250μA
+
Vcc
130μA
130μA
600μA
ESD
ESD
Non Inverting
Input
Inverting Input
Cc
Output
Vcc-
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QW-R105-029.E
3422
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
V
CC
V
ID
V
IN
LINEAR INTEGRATED CIRCUIT
RATINGS
UNIT
Supply Voltage
±18 ~ 36
V
Differential Input Voltage (Note 1)
±36
V
Input Voltage (Note 1)
±18
V
Output Short-Circuit Duration (Note 2)
Infinite
Maximum Power Dissipation (Note 2)
P
TOT
500
mW
Operating Temperature
T
OPR
-40 ~ +125
°C
Junction Temperature
T
J
+150
°C
Storage Temperature
T
STG
-65 ~ +150
°C
+
-
Notes: 1. Either or both input voltages must not exceed the magnitude of V
CC
or V
CC
2. Power dissipation must be considered to ensure maximum junction temperature (T
J
) is not exceeded
OPERATING CONDITIONS
PARAMETER
SYMBOL
V
CC
RATINGS
3 ~ 36
UNIT
V
Supply Voltage
ELECTRICAL CHARACTERISTICS
(V
CC
+=15V, V
CC
-=-15V, T
A
=25°C, unless otherwise specified)
PARAMETER
SYMBOL
V
IO
△
V
IO
I
IO
I
IB
Input Offset Voltage
Input Offset Voltage Drift
Input Offset Current
Input Bias Current
Common Mode Input Voltage
Large Signal Voltage Gain
TEST CONDITIONS
V
CC+
=+15V, V
CC-
=-15V
V
IC
=0V, V
O
=0V T
MIN
≤T
A
≤T
MAX
V
CC+
=+5V, V
CC-
=0V
V
IC
=0V, V
O
=0V
V
IC
=0V, V
O
=0V
V
IC
=0V, V
O
=0V
MIN
TYP
MAX
2.5
3.5
2.5
65
650
UNIT
mV
μV/℃
nA
nA
V
V/mV
V
ICM
A
VD
R
L
=2kΩ, V
O
=0V ~ +10V
T
MIN
≤T
A
≤T
MAX
V
CC+
=+15V,
V
CC-
=-15V, R
L
=2kΩ
32
20
13.4
13.4
3.7
25
25
80
90
2
3
100
V
CC-
to
V
CC+
-1.8
100
13.9
-13.9
14
-14.7
0.15
37
37
100
105
2.15
8
17
15
25
5
50
40
14
120
0.003
Output Voltage Swing
±V
OPP
Output Short Circuit Current
Common
Mode
Rejection
Ratio
Supply Voltage Rejection Ratio
Supply Current
Slew Rate
Gain Bandwith Product
Unity Gain Bandwith
Phase Margin
Equivalent Input Noise Voltage
Channel Separation
Total Harmonic Distortion
I
O
CMR
SVR
I
CC
SR
GBP
B
m
e
N
V
OH
V
OL
V
OH
V
ID
=±1V R
L
=10kΩ
V
OL
+
-
V
CC
=+5V, V
CC
=0V, V
OH
R
L
=2kΩ
V
OL
Source
V
ID
=±1V, V
O
=0V,
Sink
-13.5
-14.1
0.2
mA
dB
dB
2.75
3
2.75
mA
V/μs
MHz
MHz
Degrees
nV
√Hz
dB
%
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V
V
ic
=-15V ~ +13.2V
V
CC+
/ V
CC-
=+15V/-15V ~ +5V/-5V
V
CC+
=+15V, V
CC-
=-15V
V
O
=0V,no load,
T
MIN
≤T
A
≤T
MAX
each amplifier
V
CC+
=+5V,V
CC-
=0V
V
I
=-10V~10V,C
L
=100pF,R
L
=2kΩ, A
V
=+1
f=100kHz, R
L
=2kΩ, C
L
=100pF
Open loop
R
L
=2kΩ
R
L
=2kΩ, C
L
=100pF
R
S
=100Ω, f=1kHz
V
O1
/V
O2
f=20Hz ~ 20kHz
V
CC
=±15V, f=1kHz, A
VCL
=20dB,
THD
R
L
=600Ω, V
O
=3Vrms
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
3422
APPLICATIONS INFORMATION
LINEAR INTEGRATED CIRCUIT
UTC 3422 IN COMPARATOR APPLICATION
The UTC
3422
is a dual bipolar operational amplifier offering a single supply operation from 3V ~ 36V with very
good performances: medium speed (25MHz), unity gain stability and low noise.
Most of operational amplifiers are not suited for comparator use because of low transition speed, output signal
incompatible with standard logics level and mainly, phase inversion. The phase inversion occures when a strong
differential signal is applied to the device inputs. The output level is then inverted and shows a wrong logic state. The
UTC
3422
does not present this problematic behaviour.
Figure 1 shows basic comparator application. Figure 2 shows the curves of the device response in standard
comparator configuration without external components.
Transition speed : Typical transition speed under a single 5V supply voltage is about 2μs from 50mV overdrive.
V
OH(MIN)
. is 3.7V and V
OL(MAX)
. is 0.2V (2kΩ load) making it compatible with standard logic families.
Figure 3 shows output signal transition for a 50mV input signal overdrive respectively of 3μs.
Figure 4 shows output signal transition for a 250mV input signal overdrive respectively of 1μs.
Input Voltages, V
IN
+(V), V
REF
(V)
Figure.1 Basic Comparator Application
2.0
1.5
Figure.2 Operating Conditions
2.0
V
REF
Output Voltage, Vo (V)
V
REF
Input Voltages, V
IN
+ (V)
Output Voltage, Vo (V)
1.5
1.0
0.5
0
Input Voltages, V
IN
+ (V)
1.0
0.5
0
V
IN
+
3μs
6
4
2
0
Time (0.5μs/div)
V
IN
+
1μs
Vo
6
4
2
0
Time (0.5μs/div)
Vo
Figure.3 Transition Speed @ 50mV Overdrive
Figure.4 Transition Speed @ 250mV Overdrive
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QW-R105-029.E
Output Voltage, Vo (V)
3422
APPLICATIONS INFORMATION(Cont.)
LINEAR INTEGRATED CIRCUIT
PHASE INVERSION
The UTC
3422
keeps the right output level thanks to its specific input structures at high differential input voltage.
The advantage is obvious on the following figures and can be also an advantage in linear use when saturation might
occure.
Figure 5 shows the behaviour in follower stage with saturation output of UTC
3422.
Figure 6 shows the saturation behaviour with 15MHz standard operational amplifier.
Input & Output Voltages, V
ID
(V), Vo (V)
Input & Output Voltages, V
ID
(V), Vo (V)
Figure.5 Behaviour With UTC3422
Figure.6 Saturation Behaviour With 15MHz Standard
Operational Amplifier
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
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