UNISONIC TECHNOLOGIES CO., LTD
LV321
SINGLE GENERAL PURPOSE,
LOW VOLTAGE, RAIL-TO-RAIL
OUTPUT OPERATIONAL
AMPLIFIER
DESCRIPTION
The UTC
LV321
is a single op amp with low supply current and
low voltage (2.7-5.5V) well economic consideration. It brings nice
performance and to low voltage, low power systems. With a 1MHz
unity-gain frequency, The UTC
LV321
has a guaranteed 1 V/µs slew
rate and low supply current. It provides heavy rail-to-rail (R-to-R)
output swing loads and the input common-mode voltage range
including ground. Besides, it is also capable for comfortably driving
large capacitive loads.
The UTC
LV321
has bipolar input and CMOS output for
improved noise performance and higher output current drive. It’s the
most cost effective solution for the applications where low voltage
operation, space saving and low price are required.
LINEAR INTEGRATED CIRCUIT
FEATURES
*
*
*
*
2.7V and 5V Performance Guaranteed
No Crossover Distortion
130µA Low Supply Current
Rail-to-Rail Output Swing @10kΩ Load: V
+
-10mV
V
-
+65mV
* V
CM
From -0.2V to V
+
-0.8V
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
LV321G-AF5-R
LV321G-AF5-R
LV321G-AL5-R
LV321G-AL5-R
Package
SOT-25
SOT-353
Packing
Tape Reel
Tape Reel
www.unisonic.com.tw
Copyright © 2011 Unisonic Technologies Co., Ltd
1of 11
QW-R105-036.B
LV321
MARKING
LINEAR INTEGRATED CIRCUIT
PIN CONFIGURATION
V+
5
OUTPUT
4
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
-IN
2 of 11
QW-R105-036.B
1
+IN
2
V-
3
LV321
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Supply Voltage
Supply Voltage (V
+
- V
-
)
Differential Input Voltage
Output Short Circuit
V
-
V
+
LINEAR INTEGRATED CIRCUIT
SYMBOL
V
SS
V
SS
V
I(DIFF)
I
O(SC)
RATINGS
2.7
~
5.5
5.5
±Supply
Voltage
UNIT
V
V
(Note 2)
(Note 3)
Infrared (15 sec)
215
°C
Junction Temperature
T
J
+150
°C
Operation Temperature
T
OPR
-40~+85
°C
Storage Temperature
T
STG
-65~+150
°C
Notes: 1. Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
2. Shorting output to V+ will adversely affect reliability
3. Shorting output to V- will adversely affect reliability
THERMAL DATA
PARAMETER
Junction to Ambient
SOT-25
SOT-353
SYMBOL
θ
JA
RATING
265
478
UNIT
°C/W
°C/W
2.7V ELECTRICAL CHARACTERISTICS
All limits guaranteed for T
J
=25°C, V
+
=2.7V, V
-
=0V, V
CM
=1.0V, V
OUT
=V
+
/2 and R
L
>1MΩ,
unless otherwise specified.
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNIT
DC CHARACTERISTICS
Input Offset Voltage
V
OS
1.7
7
mV
0
-0.2
V
Input Common Mode Voltage Range
V
CM
For CMRR≥50dB
1.9
1.7
V
+
+
mV
V
-100
V
-10
Output Swing
V
OUT
R
L
=10kΩ to 1.35V
60
180
mV
Input Offset Voltage Average Drift
TCVos
5
µV/°C
Input Bias Current
I
I(BIAS)
11
250
nA
Input Offset Current
I
I(OFF)
5
50
nA
Common Mode Rejection Ratio
CMRR 0V≤V
CM
≤1.7V
50
63
dB
+
Power Supply Rejection Ratio
PSRR
2.7V≤V
≤5V,
V
OUT
=1V
50
60
dB
Supply Current
I
SS
80
170
µA
AC CHARACTERISTICS
Gain Bandwidth Product
GBWP C
L
=200pF
1
MHz
Phase Margin
Φ
m
60
Deg
Gain Margin
G
m
10
dB
nV
Input Referred Voltage Noise
eN
F=1kHz
46
√
Hz
pA
Input Referred Current Noise
i
n
F=1kHz
0.17
√
Hz
UNISONIC TECHNOLOGIES CO., LTD
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3 of 11
QW-R105-036.B
LV321
5V ELECTRICAL CHARACTERISTICS
LINEAR INTEGRATED CIRCUIT
All limits guaranteed for T
J
=25°C, V
+
=5V, V
-
=0V, V
CM
=2.0V, V
OUT
=V
+
/2 and R
L
>1MΩ,
unless otherwise specified.
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNIT
DC CHARACTERISTICS
Input Offset Voltage
V
OS
1.7
7
mV
0
-0.2
V
Input Common-Mode Voltage Range
V
CM
For CMRR≥50dB
4.2
4
V
+
+
mV
V
OH
V -300 V -40
R
L
=2kΩ to2.5V
V
OL
120
300
mV
Output Swing
V
OUT
+
+
mV
V
OH
V -100 V -10
R
L
=10kΩ to 2.5V
V
OL
65
180
mV
Input Offset Voltage Average Drift
TCVos
5
µV/°C
Input Bias Current
I
I(BIAS)
15
250
nA
Input Offset Current
I
I(OFF)
5
50
nA
Common Mode Rejection Ratio
CMRR 0V≤V
CM
≤4V
50
65
dB
+
2.7V≤V
≤5V
50
60
dB
Power Supply Rejection Ratio
PSRR
V
OUT
=1V, V
CM
=1V
Large Signal Voltage Gain(Note 1)
G
V
R
L
=2kΩ
15
100
V/mV
5
60
mA
Sourcing, V
OUT
=0V
Output Short Circuit Current
I
OUT
Sinking, V
OUT
=5V
10
160
mA
Supply Current
I
SS
130
250
µA
AC CHARACTERISTICS
Slew Rate
SR
(Note 2)
1
V/µs
Gain Bandwidth Product
GBWP C
L
=200pF
1
MHz
Φ
m
60
Deg
Phase Margin
G
m
Gain Margin
10
dB
nV
eN
Input Referred Voltage Noise
f=1kHz
39
√
Hz
pA
i
n
f=1kHz
0.21
Input Referred Current Noise
√
Hz
-
Notes: 1. R
L
is connected to V . The output voltage is 0.5V≤V
OUT
≤4.5V.
2. Connected as voltage follower with 3V step input. Number specified is these lower of the positive and
negative slew rates
3. all numbers are typical, and apply for packages soldered directly note a PC board is still air.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
4 of 11
QW-R105-036.B
LV321
Sinking Current, I
SINK
(mA)
Sourcing Current, I
SOURCT
(mA)
Suply Current, I
SS
(µA)
TYPICAL CHARACTERISTICS
UNISONIC TECHNOLOGIES CO., LTD
Sourcing Current , I
SOURCT
(mA)
Output Impedance From Supply
Voltage (µV)
www.unisonic.com.tw
Sourcing Current, I
SOURCING
(mA)
LINEAR INTEGRATED CIRCUIT
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QW-R105-036.B
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