LM321 [UTC]
LOW POWER SINGLE OP AMP;
| 型号： | LM321 |
| 厂家： | 
Unisonic Technologies |
| 描述： | LOW POWER SINGLE OP AMP 放大器 高压 运算放大器 比较器 |
| 文件： | 总7页 (文件大小：227K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UNISONIC TECHNOLOGIES CO., LTD
LM321
LINEAR INTEGRATED CIRCUIT
LOW POWER SINGLE OP AMP
DESCRIPTION
The UTC LM321’s quiescent current is only 430µA (5V). The
UTC LM321 brings performance and economy to low power
systems, With a high unity gain frequency and a specified 0.4V/µs
slew rate. The input common mode range includes ground and
therefore the device is able to operate in single supply
applications as well as in dual supply applications. It is also
capable of comfortably driving large capacitive loads.
FEATURES
* Low supply current 430µA
* VCC=5V, TA=25°C. Typical values unless specified.
* Gain-Bandwidth product 1MHz
* Low input bias current 45nA
* Wide supply voltage range +3V~+32V
* Stable with high capacitive loads
ORDERING INFORMATION
Ordering Number
Package
Packing
Lead Free
Halogen Free
LM321G-AE5-R
LM321L-AE5-R
SOT-23-5
Tape Reel
MARKING
www.unisonic.com.tw
Copyright © 2017 Unisonic Technologies Co., Ltd
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LM321
LINEAR INTEGRATED CIRCUIT
PIN CONFIGURATION
PIN DESCRIPTION
PIN NO.
PIN NAME
DESCRIPTION
1
2
3
4
5
+IN
V-
Non-inverting input
Ground
-IN
inverting input
Output
OUTPUT
V+
Power supply
BLOCK DIAGRAM
V+
5
1
+IN
+
-
V-
2
3
4
-IN
OUTPUT
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LM321
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATING
PARAMETER
SYMBOL
VCC
RATINGS
32
UNIT
V
Supply Voltage (V+ - V−)
Differential Input Voltage
Input Voltage
VI(DIFF)
VIN
±Supply Voltage
-0.3~+32
50
V
V
Input Current (VIN<−0.3V) (Note 2)
Output Short Circuit to GND, V+≤15V and
TA=25°C (Note 3)
mA
Continuous
Junction Temperature
TJ
150
°C
°C
Storage Temperature
TSTG
-65~+150
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. This input current will only exist when the voltage at any of the input leads is driven negative. It is due to
the collector base junction of the input PNP transistors becoming forward biased and thereby acting as
input diode clamps. In addition to this diode action, there is also lateral NPN parasitic transistor action on
the IC chip. This transistor action can cause the output voltages of the op amps to go to the V+ voltage
level (or to ground for a large overdrive) for the time duration that an input is driven negative. This is not
destructive and normal output states will re-establish when the input voltage, which was negative, again
returns to a value greater than -0.36V (at 25°C).
3. Short circuits from the output V+ can cause excessive heating and eventual destruction. When considering
short circuits to ground the maximum output current is approximately 40mA independent of the magnitude
of V+. At values of supply voltage in excess of +15V, continuous short circuits can exceed the power
dissipation ratings and cause eventual destruction.
OPERATING RATINGS
PARAMETER
SYMBOL
RATINGS
-40~85
3~30
UNIT
°C
Temperature Range
Supply Voltage
TA
V+
V
THERMAL DATA
PARAMETER
Junction to Ambient
SYMBOL
RATINGS
265
UNIT
θJA
°С/W
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LM321
LINEAR INTEGRATED CIRCUIT
ELECTRICAL CHARACTERISTICS
(Unless otherwise specified, all limits guaranteed for TA=25˚C, V+=5V, V−=0V, VO=1.4V.)
MIN
TYP
MAX
PARAMETER
SYMBOL
TEST CONDITIONS
(Note 3)
UNIT
(Note 1) (Note 2) (Note 1)
Input Offset Voltage
Input Bias Current (Note 4)
Input Offset Current
Input Common-Mode Voltage
Range
VOS
IB
2
45
5
7
mV
nA
nA
250
50
IOS
V+=30V (Note 5)
For CMRR>=50dB
(V+=15V, RL=2kΩ
VO=1.4V~11.4V)
VCM
0
V+ -1.5
V
25
15
65
65
26
27
100
V/mV
V/mV
dB
Large Signal Voltage Gain
AV
Power Supply Rejection Ratio
Common Mode Rejection Ratio
PSRR
RS≤10kΩ, V+≤5V~30V
100
85
CMRR RS≤10kΩ
dB
V+=30V, RL=2kΩ
V
VOH
VOL
IS
V+=30V, RL=10kΩ
V+=5V, RL=10kΩ
V+=5V
28
5
V
Output Swing
20
mV
mA
mA
mA
mA
µA
0.430
0.660
40
1.15
2.85
Supply Current, No Load
Output Current Sourcing
Output Current Sinking
V+=30V
ISOURCE VID=+1V, V+=15V, VO=2V
20
10
12
VID=-1V, V+=15V, VO=2V
VID=-1V, V+=15V, VO=0.2V
20
ISINK
100
Output Short Circuit to Ground
(Note 6)
IO
V+=15V
40
85
mA
V+=15V, RL=2kΩ, VIN=0.5~3V,
CL=100pF, Unity Gain
V+=30V, f=100kHz, VIN=10mV,
RL=2kΩ, CL=100pF
Slew Rate
SR
0.4
V/µs
Gain Bandwidth Product
Phase Margin
GBW
φm
1
MHz
deg
%
60
f=1kHz, AV=20dB, RL=2kΩ,
Total Harmonic Distortion
THD
0.015
VO=2VPP, CL=100pF, V+=30V
Equivalent Input Noise Voltage
en
f=1kHz, RS=100Ω, V+=30V
40
nV Hz
Notes: 1. All limits are specified by testing or statistical analysis.
2. Typical values represent the most likely parametric norm.
3. VO 1.4V, RS=0Ω with V+ from 5V to 30V; and over the full input common-mode range (0V~V+ -1.5V) at
25°C.
4. The direction of the input current is out of the IC due to the PNP input stage. This current is essentially
constant, independent of the state of the output so no loading change exists on the input lines.
5. The input common-mode voltage of either input signal voltage should not be allowed to go negative by
more than 0.3V (at 25°C). The upper end of the common-mode voltage range is V+-1.5V at 25°C, but either
or both inputs can go to +32V without damage, independent of the magnitude of V+.
6. Short circuits from the output V+ can cause excessive heating and eventual destruction. When considering
short circuits to ground the maximum output current is approximately 40mA independent of the magnitude
of V+. At values of supply voltage in excess of +15V, continuous short circuits can exceed the power
dissipation ratings and cause eventual destruction.
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LM321
LINEAR INTEGRATED CIRCUIT
SIMPLIFIED SCHEMATIC
V+
100µA
4µA
6µA
Q3
Q5
Q6
CC
Q7
Q2
INPUTS-
INPUTS+
Q1
Q4
RSC
OUTPUT
Q13
Q11
Q12
50µA
Q10
Q8
Q9
V-
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LM321
LINEAR INTEGRATED CIRCUIT
TYPICAL APPLICATION CIRCUIT
Non-Inverting DC Gain (0V Input = 0V Output)
Power Amplifier
LED Driver
20mA
R1
910k
R2
100k
V+
82
NSL 102
-
R3
91k
VO
RL
+VIN
+
V0=0 VDC for VIN=0 VDC, AV=10
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LM321
LINEAR INTEGRATED CIRCUIT
TYPICAL APPLICATION CIRCUIT(Cont.)
Lamp Driver
V+
Fixed Current Sources
V+
+
2V
-
+
2V
-
R3
2k
R1
2k
R2
30mA
-
600mA
β≥20
-
100
+
+
R4
3k
I1
I2
1mA
R1
R2
=
I1
I2
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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