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Part Number LMX358

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General Description
The LMX321/LMX358/LMX324 are single/dual/quad,
low-cost, low-voltage, pin-to-pin compatible upgrades
to the LMV321/LMV358/LMV324 family of general pur-
pose op amps. These devices offer Rail-to-Rail
®
out-
puts and an input common-mode range that extends
below ground. These op amps draw only 105µA of qui-
escent current per amplifier, operate from a single
+2.3V to +7V supply, and drive 2k
resistive loads to
within 40mV of either rail. The LMX321/LMX358/LMX324
are unity-gain stable with a 1.3MHz gain-bandwidth
product capable of driving capacitive loads up to
400pF. The combination of low voltage, low cost, and
small package size makes these amplifiers ideal for
portable/battery-powered equipment.
The LMX321 single op amp is available in ultra-small 5-
pin SC70 and space-saving 5-pin SOT23 packages.
The LMX358 dual op amp is available in the tiny 8-pin
SOT23 package. The LMX324 quad op amp is avail-
able in 14-pin TSSOP and SO packages.
Applications
Cellular Phones
Laptops
Low-Power, Low-Voltage Applications
Portable/Battery-Powered Equipment
Cordless Phones
Active Filters
Features
o
Upgrade to LMV321/LMV358/LMV324 Family
o
Single +2.3V to +7V Supply Voltage Range
o
Available in Space-Saving Packages
5-Pin SC70 (LMX321)
8-Pin SOT23 (LMX358)
14-Pin TSSOP (LMX324)
o
1.3MHz Gain-Bandwidth Product
o
105µA Quiescent Current per Amplifier
(V
CC
= +2.7V)
o
No Phase Reversal for Overdriven Inputs
o
No Crossover Distortion
o
Rail-to-Rail Output Swing
o
Input Common-Mode Voltage Range: V
EE
- 0.2V
to V
CC
- 0.8V
o
Drives 2k
Resistive Loads
LMX321/LMX358/LMX324
Single/Dual/Quad, General-Purpose,
Low-Voltage, Rail-to-Rail Output Op Amps
________________________________________________________________ Maxim Integrated Products
1
6
SOT23-8/SO/
µ
MAX
TSSOP/SO
V
EE
OUT1
IN1+
1
2
3
4
8
IN2-
5 IN2+
7 OUT2
IN1-
V
CC
OUT1
IN1+
IN2+
OUT2
IN2-
1
2
3
4
5
6
7
14
13
12
11
10
9
8
IN4+
IN3+
IN3-
OUT3
IN4-
OUT4
IN1-
V
CC
V
EE
LMX324
LMX358
IN+
IN-
1
2
3
5
4 OUT
V
EE
V
CC
LMX321
SC70-5/SOT23-5
TOP VIEW
Pin Configurations
Ordering Information
19-2103; Rev 0; 8/01
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim's website at www.maxim-ic.com.
Selector Guide appears at end of data sheet.
PART
TEMP. RANGE
PIN-PACKAGE
LMX321
AXK-T
-40
°
C to +125
°
C
5 SC70-5
LMX321AUK-T
-40
°
C to +125
°
C
5 SOT23-5
LMX358
AKA-T
-40
°
C to +125
°
C
8 SOT23-8
LMX358ASA
-40
°
C to +125
°
C
8 SO
LMX358AUA
-40
°
C to +125
°
C
8
µ
MAX
LMX324
ASD
-40
°
C to +125
°
C
14 SO
LMX324AUD
-40
°
C to +125
°
C
14 TSSOP
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
LMX321/LMX358/LMX324
Single/Dual/Quad, General-Purpose,
Low-Voltage, Rail-to-Rail Output Op Amps
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
CC
= +2.7V, V
EE
= 0, V
OUT
= V
CC
/2, V
CM
= 1V, R
L
> 1M
,
T
A
= +25°C
, unless otherwise noted.)
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Supply Voltage (V
CC
to V
EE
) ....................................-0.3V to +8V
Differential Input Voltage (V
IN+
- V
IN-
) ........................V
EE
to V
CC
OUT_ to V
EE
...............................................-0.3V to (V
CC
+ 0.3V)
Output Short-Circuit Duration
OUT_ Shorted to V
CC
or V
EE
..................................Continuous
Continuous Power Dissipation (T
A
= +70°C)
5-Pin SC70-5 (derate 3.1mW/°C above +70°C)...........247mW
5-Pin SOT23-5 (derate 7.1mW/°C above +70°C) ........571mW
8-Pin SOT23-8 (derate 7.52mW/°C above +70°C) ......602mW
8-Pin SO (derate 5.9mW/°C above +70°C)..................471mW
8-Pin µMAX (derate 4.5mW/°C above +70°C) .............362mW
14-Pin TSSOP (derate 9.1mW/°C above +70°C) .........727mW
14-Pin SO (derate 8.3mW/°C above +70°C)................667mW
Operating Temperature Range .........................-40°C to +125°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER
SYM B O L CONDITIONS
MIN
TYP
MAX
UNITS
DC Characteristics
Input Offset Voltage
V
OS
1
6
mV
Input Offset Voltage Average
Drift
TCV
OS
6
µV/
o
C
Input Bias Current
I
B
18
50
nA
Input Offset Current
I
OS
1
8
nA
Common-Mode Rejection
Ratio
CMRR
-0.2V < V
CM
< 1.8V
72
92
dB
Power-Supply Rejection Ratio
PSRR
2.3V
<
V
CC
< 7V, V
OUT
= 1V
82
96
dB
Limit
-0.2
1.8
Input Common-Mode Voltage
Range
V
CM
For CMRR
> 72dB
Typ
-0.2
1.9
V
Large-Signal Voltage Gain
A
VOL
R
L
= 2k
to V
EE
, 0.3V < V
OUT
< 2.4V
20
120
V/mV
V
CC
- V
OH
12
50
R
L
= 10k
to 1.35V
V
OL
10
40
V
CC
- V
OH
40
110
Output Voltage Swing
V
OUT
R
L
= 2k
to 1.35V
V
OL
25
60
mV
LMX321 (Single)
105
150
LMX358 (Dual)
210
300
Supply Current
I
CC
LMX324 (Quad)
420
600
µA
AC Characteristics
Slew Rate
SR
1V step Input
1
V/µs
Gain-Bandwidth Product
GBW
C
L
= 200pF
1.3
MHz
Phase Margin
M
64
d egr ees
Gain Margin
GM
24
dB
Input Noise Voltage Density
e
n
f = 1kHz
66
nV/
Hz
Input Current Noise Density
i
n
f = 1kHz
0.13
pA/
Hz
LMX321/LMX358/LMX324
Single/Dual/Quad, General-Purpose,
Low-Voltage, Rail-to-Rail Output Op Amps
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS
(V
CC
= +2.7V, V
EE
= 0, V
OUT
= V
CC
/2, V
CM
= 1V, R
L
> 1M
, T
A
=
-40°C to +125°C
, unless otherwise noted.) (Note 1)
PARAMETER
SYM B O L CONDITIONS
MIN
TYP
MAX
UNITS
DC Characteristics
Input Offset Voltage
V
OS
9
mV
Input Bias Current
I
B
70
nA
Input Offset Current
I
OS
15
nA
Common-Mode Rejection
Ratio
CMRR
-0.1 < V
CM
< 1.7V
60
dB
Power-Supply Rejection Ratio
PSRR
2.3V
<
V
CC
<
7V, V
OUT
= 1V
75
dB
Limit
-0.1
1.7
Input Common-Mode Voltage
Range
V
CM
For CMRR
> 60dB
Typ
-0.1
1.8
V
Large-Signal Voltage Gain
A
VOL
R
L
= 2k
to V
EE
, 0.3V
<
V
OUT
< 2.4V
10
V/mV
V
CC
- V
OH
130
R
L
= 10k
to 1.55V
V
OL
50
V
CC
- V
OH
150
Output Voltage Swing
V
OUT
R
L
= 2k
to 1.35V
V
OL
70
mV
LMX321 (Single)
180
LMX358 (Dual)
360
Supply Current
I
CC
LMX324 (Quad)
720
µA
ELECTRICAL CHARACTERISTICS
(V
CC
= +5V, V
EE
= 0, V
OUT
= V
CC
/2, V
CM
= 2V, R
L
> 1M
,
T
A
= +25°C
, unless otherwise noted.)
PARAMETER
SYM B O L CONDITIONS
MIN
TYP
MAX
UNITS
DC Characteristics
Input Offset Voltage
V
OS
1
6
mV
Input Offset Voltage Average
Drift
TCV
OS
6
µV/
o
C
Input Bias Current
I
B
18
50
nA
Input Offset Current
I
OS
1
8
nA
Common-Mode Rejection Ratio
CMRR
-0.2 < V
CM
< 4.1V
72
92
dB
Power-Supply Rejection Ratio
PSRR
2.3V
<
V
CC
<
7V, V
OUT
= 1V,
V
CM
= 1V
82
96
dB
Limit
-0.2
4.1
Input Common-Mode Voltage
Range
V
CM
For CMRR
> 72dB
Typ
-0.2
4.2
V
Large-Signal Voltage Gain
A
VOL
R
L
= 2k
to V
EE
,
0.3V
<
V
OUT
<
4.7V
40
200
V/mV
LMX321/LMX358/LMX324
Single/Dual/Quad, General-Purpose,
Low-Voltage, Rail-to-Rail Output Op Amps
4
_______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +5V, V
EE
= 0, V
OUT
= V
CC
/2, V
CM
= 2V, R
L
> 1M
,
T
A
= +25°C
, unless otherwise noted.)
PARAMETER
SYM B O L CONDITIONS
MIN
TYP
MAX
UNITS
V
CC
- V
OH
20
60
R
L
= 10k
to 2.5V
V
OL
12
40
V
CC
- V
OH
65
130
Output Voltage Swing
V
OUT
R
L
= 2k
to 2.5V
V
OL
40
80
mV
Sourcing, V
OUT
= 0
5
25
Output Short-Circuit Current
I
SC
Sinking, V
OUT
= 5V
10
28
m A
LMX321 (Single)
120
170
LMX358 (Dual)
240
340
Supply Current
I
CC
LMX324 (Quad)
480
680
µA
AC Characteristics
Slew Rate
SR
3V step input
1
V/µs
Gain-Bandwidth Product
GBW
C
L
= 200pF
1.3
MHz
Phase Margin
M
65
degrees
Gain Margin
GM
25
dB
Input Noise Voltage Density
e
n
f = 1kHz
65
nV/
Hz
Input Noise Current Density
i
n
f = 1kHz
0.13
pA/
Hz
Note 1:
Specifications are 100% tested at T
A
= +25°C (exceptions noted). All temperature limits are guaranteed by design.
ELECTRICAL CHARACTERISTICS
(V
CC
= +5V, V
EE
= 0, V
OUT
= V
CC
/2, V
CM
= 2V, R
L
> 1M
,
T
A
= -40°C to +125°C
, unless otherwise noted.) (Note 1)
PARAMETER
SYM B O L CONDITIONS
MIN
TYP
MAX
UNITS
DC Characteristics
Input Offset Voltage
V
OS
9
mV
Input Bias Current
I
B
70
nA
Input Offset Current
I
OS
15
nA
Common-Mode Rejection Ratio
CMRR
-0.1 < V
CM
< 4.0V
63
dB
Power-Supply Rejection Ratio
PSRR
2.3V
<
V
CC
<
7V, V
OUT
= 1V, V
CM
= 1V
75
dB
Limit
-0.1
4.0
Input Common-Mode Voltage
Range
V
CM
For CMRR
> 63dB
Typ
-0.1
4.1
V
Large-Signal Voltage Gain
A
VOL
R
L
= 2k
to V
EE
, 0.3V
<
V
OUT
< 4.7V
20
V/mV
V
CC
- V
OH
170
R
L
= 10k
to 2.5V
V
OL
70
V
CC
- V
OH
190
Output Voltage Swing
V
OUT
R
L
= 2k
to 2.5V
V
OL
90
mV
LMX321 (Single)
210
LMX358 (Dual)
420
Supply Current
I
CC
LMX324 (Quad)
840
µA
LMX321/LMX358/LMX324
Single/Dual/Quad, General-Purpose,
Low-Voltage, Rail-to-Rail Output Op Amps
_______________________________________________________________________________________
5
0
40
20
80
60
100
120
140
160
0
2
3
1
4
5
6
7
SUPPLY CURRENT PER AMPLIFIER
vs. SUPPLY VOLTAGE
LMX321 toc01
SUPPLY VOLTAGE (V)
SUPPLY CURRENT PER AMPLIFIER (
µ
A)
T
A
= +125
°
C
T
A
= +85
°
C
T
A
= +25
°
C
T
A
= -40
°
C
-40
-10 5
-25
20 35 50 65 80 95 110 125
INPUT BIAS CURRENT
vs. TEMPERATURE
LMX321 toc02
TEMPERATURE (
°
C)
INPUT BIAS CURRENT (nA)
-20
-17
-18
-19
-15
-16
-11
-12
-13
-14
-10
V
CC
= +5V, V
IN
= V
CC
/2
100
10
1
0.1
0.01
0.01
1
0.1
10
SOURCE CURRENT
vs. OUTPUT VOLTAGE
LMX321 toc03
OUTPUT VOLTAGE REFERENCED TO V
CC
(V)
SOURCE CURRENT (mA)
V
CC
= 2.7V
100
10
1
0.1
0.01
0.01
1
0.1
10
SOURCE CURRENT
vs. OUTPUT VOLTAGE
LMX321 toc04
OUTPUT VOLTAGE REFERENCED TO V
CC
(V)
SOURCE CURRENT (mA)
V
CC
= 5V
100
10
1
0.1
0.01
0.001
0.01
1
0.1
10
SINK CURRENT
vs. OUTPUT VOLTAGE
LMX321 toc05
OUTPUT VOLTAGE REFERENCED TO V
EE
(V)
SINK CURRENT (mA)
V
CC
= 2.7V
100
10
1
0.1
0.01
0.001
0.01
1
0.1
10
SINK CURRENT
vs. OUTPUT VOLTAGE
LMX321 toc06
OUTPUT VOLTAGE REFERENCED TO V
EE
(V)
SINK CURRENT (mA)
V
CC
= 5V
20
30
40
50
60
70
80
90
100
2
4
3
5
6
7
OUTPUT VOLTAGE SWING
vs. SUPPLY VOLTAGE
LMX321 toc07
SUPPLY VOLTAGE (V)
OUTPUT VOLTAGE SWING (mV)
R
L
= 2k
POSITIVE SWING
(V
CC
- V
OH
)
NEGATIVE SWING (V
OL
)
5
15
10
25
20
30
35
2
5
6
3
4
7
OUTPUT VOLTAGE SWING
vs. SUPPLY VOLTAGE
LMX321 toc08
SUPPLY VOLTAGE (V)
OUTPUT VOLTAGE SWING (mV)
R
L
= 10k
POSITIVE SWING
(V
CC
- V
OH
)
NEGATIVE SWING (V
OL
)
0
100
50
150
200
250
300
350
400
450
500
550
600
1
10
100
1k
10k
100k
INPUT VOLTAGE NOISE
vs. FREQUENCY
LMX321 toc09
FREQUENCY (Hz)
INPUT VOLTAGE NOISE (nV/
Hz)
V
CC
= 2.7V TO 5V, V
CM
= V
CC
/2
Typical Operating Characteristics
(T
A
= +25°C, V
EE
= 0, unless otherwise noted.)