Datasheet
Operational Amplifiers Series
Ground Sense Low Power
General Purpose Operational Amplifiers
LMR321G, LMR358xxx, LMR324xxx
●General
Description
LMR321, LMR358 and LMR324 are single, dual and
quad low voltage operational amplifier with output full
swing.
LMR321, LMR358 and LMR324 are the most effective
solutions for applications where low supply current
consumption and low voltage operation.
●Features
Operable with low voltage
Input Ground Sense, Output Full Swing
High open loop voltage gain
Low supply current
Low input offset voltage
●Packages
SSOP5
SOP8
SOP-J8
SSOP-B8
TSSOP-B8
MSOP8
TSSOP-B8J
SOP14
SOP-J14
SSOP-B14
TSSOP-B14J
W(Typ.) x D(Typ.) x H(Max.)
2.90mm x 2.80mm x 1.25mm
5.00mm x 6.20mm x 1.71mm
4.90mm x 6.00mm x 1.65mm
3.00mm x 6.40mm x 1.35mm
3.00mm x 6.40mm x 1.20mm
2.90mm x 4.00mm x 0.90mm
3.00mm x 4.90mm x 1.10mm
8.70mm x 6.20mm x 1.71mm
8.65mm x 6.00mm x 1.65mm
5.00mm x 6.40mm x 1.35mm
5.00mm x 6.40mm x 1.20mm
●Applications
Portable equipment
Low voltage application
Active filter
●Key
Specifications
Operable with low voltage (single supply):
+2.7V to +5.5V
Low Supply Current:
LMR321
130µA(Typ.)
LMR358
210µA(Typ.)
LMR324
410µA(Typ.)
High Slew Rate:
1.0V/µs(Typ.)
Wide Temperature Range:
-40°C to +85°C
Low Input Offset Current:
5nA (Typ.)
Low Input Bias Current:
15nA (Typ.)
●Simplified
schematic
VDD
IN+
OUT
IN-
class
AB control
VSS
Figure 1. Simplified schematic
○Product
structure：Silicon monolithic integrated circuit
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© 2012 ROHM Co., Ltd. All rights reserved.
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○This
product is not designed protection against radioactive rays.
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LMR321G, LMR358xxx, LMR324xxx
●Pin
Configuration
SSOP5
Pin No.
+IN
Datasheet
Symbol
+IN
VSS
-IN
OUT
VDD
1
+
-
5
VDD
1
2
3
4
5
VSS
2
-IN
3
4
OUT
SOP8, SOP-J8, SSOP-B8, TSSOP-B8, MSOP8, TSSOP-B8J
Pin No.
1
OUT1
1
-IN1
+IN1
VSS
Symbol
OUT1
-IN1
+IN1
VSS
+IN2
-IN2
OUT2
VDD
8
VDD
CH1
2
3
4
5
6
7
8
2
3
4
- +
CH2
7
OUT2
6
-IN2
5
+IN2
+ -
SOP14, SOP-J14, SSOP-B14, TSSOP-B14J
Pin No.
1
OUT1 1
-IN1
+IN1
VDD
+IN2
-IN2
2
3
4
5
6
CH2
CH1
Symbol
OUT1
-IN1
+IN1
VDD
+IN2
-IN2
OUT2
OUT3
-IN3
+IN3
VSS
+IN4
-IN4
OUT4
14 OUT4
- +
CH4
2
3
4
5
6
7
8
9
10
11
12
13
14
13 -IN4
12 +IN4
11 VSS
10 +IN3
+ -
- +
CH3
+ -
9 -IN3
8 OUT3
OUT2 7
Package
SSOP5
LMR321G
SOP8
LMR358F
SOP-J8
LMR358FJ
SSOP-B8
LMR358FV
TSSOP-B8
LMR358FVT
MSOP8
LMR358FVM
Package
TSSOP-B8J
LMR358FVJ
SOP14
LMR324F
SOP-J14
LMR324FJ
SSOP-B14
LMR324FV
TSSOP-B14J
LMR324FVJ
-
-
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LMR321G, LMR358xxx, LMR324xxx
●Ordering
Information
Datasheet
L
M
R
3
x
x
x
x
x
-
xx
Packaging and forming specification
E2: Embossed tape and reel
(SOP8/SOP-J8/SSOP-B8/TSSOP-B8/
TSSOP-B8J/SOP14/SOP-J14/SSOP-B14
TSSOP-B14J)
TR: Embossed tape and reel
(SSOP5/MSOP8)
Part Number
LMR321G
LMR358xxx
LMR324xxx
Package
G
: SSOP5
F
: SOP8, SOP14
FV : SSOP-B8
SSOP-B14
FVM : MSOP8
FJ : SOP-J8
SOP-J14
FVJ : TSSOP-B8J
TSSOP-B14J
FVT : TSSOP-B8
●Line-up
Topr
Input
type
V
DD
(Min.)
Supply
Current
(Typ.)
130µA
Input Offset
Voltage
(Max.)
±4mV
Package
SSOP5
SOP8
MSOP8
SOP-J8
SSOP-B8
TSSOP-B8
TSSOP-B8J
SOP14
SOP-J14
SSOP-B14
TSSOP-B14J
Reel of 3000
Reel of 2500
Reel of 3000
Reel of 2500
Reel of 2500
Reel of 3000
Reel of 2500
Reel of 2500
Reel of 2500
Reel of 2500
Reel of 2500
Orderable
Part Number
LMR321G-TR
LMR358F-E2
LMR358FVM-TR
LMR358FJ-E2
LMR358FV-E2
LMR358FVT-E2
LMR358FVJ-E2
LMR324F-E2
LMR324FJ-E2
LMR324FV-E2
LMR324FVJ-E2
210µA
-40°C to + 85°C
Ground
Sense
2.7V
±5mV
410µA
±9mV
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LMR321G, LMR358xxx, LMR324xxx
●Absolute
Maximum Ratings(Ta=25℃)
Rating
Parameter
Supply Voltage
Symbol
VDD-VSS
SSOP5
SOP-J8
SOP8
SSOP-B8
TSSOP-B8
Power dissipation
Pd
MSOP8
TSSOP-B8J
SOP-J14
SSOP-B14
TSSOP-B14J
SOP14
Differential Input Voltage
*10
Input Common-mode
Voltage Range
Operable with low voltage
Operating Temperature
Storage Temperature
Maximum
Junction Temperature
Vid
Vicm
Vopr
Topr
Tstg
Tjmax
675
*1*9
-
-
-
-
-
-
-
-
-
-
LMR321G
LMR358
+7
-
675
690
625
587
-
-
-
-
VDD - VSS
(VSS-0.3) to (VDD+0.3)
+2.7 to +5.5
-40 to +85
-55 to +150
+150
625
*1*9
*2*9
*3*9
*3*9
*4*9
*4*9
Datasheet
LMR324
Unit
V
-
-
-
-
-
-
-
1025
*5*9
875
*6*9
850
*7*9
562
*8*9
V
V
V
℃
℃
℃
mW
587
Note: Absolute maximum rating item indicates the condition which must not be exceeded.
Application of voltage in excess of absolute maximum rating or use out absolute maximum rated temperature environment
may cause deterioration of characteristics.
*1
To use at temperature above Ta＝25℃ reduce 5.4mW/℃.
*2
To use at temperature above Ta＝25℃ reduce 5.52mW/℃.
*3
To use at temperature above Ta＝25℃ reduce 5mW/℃.
*4
To use at temperature above Ta＝25℃ reduce 4.7mW/℃.
*5
To use at temperature above Ta＝25℃ reduce 8.2mW/℃.
*6
To use at temperature above Ta＝25℃ reduce 7mW/℃.
*7
To use at temperature above Ta＝25℃ reduce 6.8mW/℃.
*8
To use at temperature above Ta＝25℃ reduce 4.5mW/℃.
*9
Mounted on a glass epoxy PCB(70mm×70mm×1.6mm).
*10 The voltage difference between inverting input and non-inverting input is the differential input voltage.
Then input terminal voltage is set to more than VSS.
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LMR321G, LMR358xxx, LMR324xxx
●Electrical
Characteristics
○LMR321
(Unless otherwise specified VDD=+5V, VSS=0V)
Parameter
Symbol
Temperature
Range
25℃
Full range
25℃
25℃
25℃
25℃
Supply Current
*12
IDD
Full range
25℃
Full range
Maximum Output
Voltage(High)
Maximum Output
Voltage(Low)
Large Signal Voltage Gain
Input Common-mode
Voltage Range
Common-mode
Rejection Ratio
Power Supply
Rejection Ratio
Output Source Current
*13
Output Sink Current
*13
Slew Rate
Unity Band width
Gain Band Width
Phase Margin
Gain Margin
Input Referred Noise
Voltage
Total Harmonic Distortion
+ Noise
*11
*12
*13
Datasheet
Limits
Unit
Min.
-
-
-
-
-
-
-
-
-
Typ.
0.1
-
3
5
15
107
-
130
-
Max.
4
5
-
50
100
180
260
200
280
-
V
V
dB
V
dB
dB
mA
mA
V/μs
MHz
MHz
deg
dB
µVrms
Av=40dB
OUT=0.4V
P-P
f=1kHz
μA
mV
µV/℃
nA
nA
VDD=2.7V to 5V
-
-
-
VDD=2.7V, Av=0dB
VIN=0.95V
VDD=5V, Av=0dB
VIN=2.1V
RL=2kΩ to 2.5V
RL=2kΩ to 2.5V
RL=2kΩ
VSS to VDD-0.8V
-
-
OUT=VDD-0.4V
OUT=0V, short current
OUT=VSS+0.4V
OUT=5V, short current
CL=25pF
CL=25pF, Av=40dB
CL=200pF
f=100kHz
CL=25pF, Av=40dB
-
Condition
Input Offset Voltage
*11
Input Offset Voltage drift
Input Offset Current
*11
Input Bias Current
*11
Vio
△Vio/△T
Iio
Ib
VOH
VOL
Av
Vicm
CMRR
PSRR
Isource
Isink
SR
f
T
GBW
θ
GM
Vn
THD+N
25℃
25℃
25℃
25℃
25℃
25℃
25℃
25℃
25℃
25℃
25℃
25℃
25℃
25℃
25℃
VDD-0.1 VDD-0.04
-
78
0
65
65
6
-
30
-
-
-
-
-
-
-
-
-
-
VSS+0.08 VSS+0.16
110
-
90
90
13
70
60
180
1.0
2
1
3
45
10
5.5
39
0.0015
-
4.2
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
nV/(Hz)
1/2
Av=40dB, f=1kHz
%
Absolute value
Full range: LMR321: Ta=-40℃ to +85℃
Under the high temperature environment, consider the power dissipation of IC when selecting the output current.
When the terminal short circuits are continuously output, the output current is reduced to climb to the temperature inside IC.
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