D ts e t
aa h e
R c e t r lc r nc
o h se Ee to is
Ma u a t r dCo o e t
n fc u e
mp n n s
R c e tr b a d d c mp n ns ae
o h se rn e
o oet r
ma ua trd u ig ete dewaes
n fcue sn i r i/ fr
h
p rh s d f m te oiia s p l r
uc a e r
o h r n l u pi s
g
e
o R c e tr waes rce td f m
r o h se
fr e rae r
o
te oiia I. Al rce t n ae
h
r nl P
g
l e rai s r
o
d n wi tea p o a o teOC
o e t h p rv l f h
h
M.
P r aetse u igoiia fcoy
at r e td sn r n la tr
s
g
ts p o rmso R c e tr e eo e
e t rga
r o h se d v lp d
ts s lt n t g aa te p o u t
e t oui s o u rne
o
rd c
me t o e c e teOC d t s e t
es r x e d h
M aa h e.
Qu l yOv riw
ai
t
e ve
• IO- 0 1
S 90
•A 92 cr ct n
S 1 0 et ai
i
o
• Qu l e Ma ua trr Ls (
ai d
n fcues it QML MI- R -
) LP F
385
53
•C a sQ Mitr
ls
lay
i
•C a sVS a eL v l
ls
p c ee
• Qu l e S p l r Ls o D sr uos( L )
ai d u pi s it f it b tr QS D
e
i
•R c e trsacic l u pir oD A a d
o h se i
r ia s p l t L n
t
e
me t aln u t a dD A sa d r s
es lid sr n L tn ad .
y
R c e tr lcrnc , L i c mmi e t
o h se Ee t is L C s o
o
tdo
t
s p ligp o u t ta s t f c so r x e t-
u pyn rd cs h t ai y u tme e p ca
s
t n fr u lya daee u loto eoiial
i s o q ai n r q a t h s r n l
o
t
g
y
s p l db id sr ma ua trr.
u pi
e yn ut
y n fcues
T eoiia ma ua trr d ts e t c o a yn ti d c me t e e t tep r r n e
h r n l n fcue’ aa h e a c mp n ig hs o u n r cs h ef ma c
g
s
o
a ds e ic t n o teR c e tr n fcue v rino ti d vc . o h se Ee t n
n p c ai s f h o h se ma ua trd eso f hs e ie R c e tr lcr -
o
o
isg aa te tep r r n eo i s mio d co p o u t t teoiia OE s e ic -
c u rne s h ef ma c ft e c n u tr rd cs o h r n l M p c a
o
s
g
t n .T pc lv le aefr eee c p r o e o l. eti mii m o ma i m rt g
i s ‘y ia’ au s r o rfrn e up s s ny C r n nmu
o
a
r xmu ai s
n
ma b b s do p o u t h rceiain d sg , i lt n o s mpetsig
y e a e n rd c c aa tr t , e in smuai , r a l e t .
z o
o
n
© 2 1 R cetr l t n s LC Al i t R sre 0 1 2 1
0 3 ohs E cr i , L . lRg s eevd 7 1 0 3
e e oc
h
T l r m r, l s v iw wrcl . m
o e n oe p ae it w . e c o
a
e
s
o ec
19-2103; Rev 1; 10/06
Single/Dual/Quad, General-Purpose,
Low-Voltage, Rail-to-Rail Output Op Amps
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 outputs
and an input common-mode range that extends below
ground. These op amps draw only 105µA of quiescent
current per amplifier, operate from a single +2.3V to
+7V supply, and drive 2kΩ resistive loads to within
40mV of either rail. The LMX321/LMX358/LMX324 are
unity-gain stable with a 1.3MHz gain-bandwidth prod-
uct 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
or the 8-pin µMAX
®
package. The LMX324 quad op amp
is available in 14-pin TSSOP and SO packages.
Features
♦
Upgrade to LMV321/LMV358/LMV324 Family
♦
Single +2.3V to +7V Supply Voltage Range
♦
Available in Space-Saving Packages
5-Pin SC70 (LMX321)
8-Pin SOT23 (LMX358)
14-Pin TSSOP (LMX324)
♦
1.3MHz Gain-Bandwidth Product
♦
105µA Quiescent Current per Amplifier
(V
CC
= +2.7V)
♦
No Phase Reversal for Overdriven Inputs
♦
No Crossover Distortion
♦
Rail-to-Rail Output Swing
♦
Input Common-Mode Voltage Range: V
EE
- 0.2V
to V
CC
- 0.8V
♦
Drives 2kΩ Resistive Loads
LMX321/LMX358/LMX324
Applications
Cellular Phones
Laptops
Low-Power, Low-Voltage Applications
Portable/Battery-Powered Equipment
Cordless Phones
Active Filters
PART
LMX321AXK-T
LMX321AUK-T
LMX358AKA-T
LMX358ASA
LMX358AUA-T
LMX324ASD
LMX324AUD
Ordering Information
TEMP RANGE
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
PIN-
PACKAGE
5 SC70-5
5 SOT23-5
8 SOT23-8
8 SO
8 µMAX-8
14 SO
14 TSSOP
PKG
CODE
X5-1
U5-1
K8-2
S8-2
U8-1
S14-4
U14-1
Selector Guide appears at end of data sheet.
Pin Configurations
TOP VIEW
IN+ 1
V
EE
2
IN- 3
4 OUT
5 V
CC
OUT1 1
IN1- 2
IN1+ 3
V
EE
4
8 V
CC
7 OUT2
6 IN2-
5 IN2+
OUT1 1
IN1- 2
IN1+ 3
V
CC
4
IN2+ 5
IN2- 6
OUT2 7
14 OUT4
13 IN4-
12 IN4+
11 V
EE
10 IN3+
9 IN3-
8 OUT3
LMX321
LMX358
SC70-5/SOT23-5
LMX324
SOT23-8/SO/µMAX
TSSOP/SO
________________________________________________________________
Maxim Integrated Products
1
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.
Single/Dual/Quad, General-Purpose,
Low-Voltage, Rail-to-Rail Output Op Amps
LMX321/LMX358/LMX324
ABSOLUTE MAXIMUM RATINGS
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
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.
ELECTRICAL CHARACTERISTICS
(V
CC
= +2.7V, V
EE
= 0V, V
OUT
= V
CC
/2, V
CM
= 1V, R
L
> 1MΩ,
T
A
= +25°C,
unless otherwise noted.)
PARAMETER
DC CHARACTERISTICS
Input Offset Voltage
Input Offset Voltage Average
Drift
Input Bias Current
Input Offset Current
Common-Mode Rejection
Ratio
Power-Supply Rejection Ratio
Input Common-Mode Voltage
Range
Large-Signal Voltage Gain
V
OS
TCV
OS
I
B
I
OS
CMRR
PSRR
V
CM
A
VOL
-0.2V < V
CM
< 1.8V
2.3V < V
CC
< 7V, V
OUT
= 1V
For CMRR > 72dB
Limit
Typ
V
CC
- V
OH
V
OL
V
CC
- V
OH
V
OL
72
82
-0.2
-0.2
20
120
12
10
40
25
105
210
420
1
1.3
64
24
f = 1kHz
f = 1kHz
66
0.13
50
40
110
60
150
300
600
V/µs
MHz
degrees
dB
nV/√Hz
pA/√Hz
µA
mV
1
6
18
1
92
96
+1.8
+1.9
50
8
6
mV
µV/
o
C
nA
nA
dB
dB
V
V/mV
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
R
L
= 2kΩ to V
EE
, 0.3V < V
OUT
< 2.4V
R
L
= 10kΩ to 1.35V
Output-Voltage Swing
V
OUT
R
L
= 2kΩ to 1.35V
LMX321 (single)
Supply Current
AC CHARACTERISTICS
Slew Rate
Gain-Bandwidth Product
Phase Margin
Gain Margin
Input Noise-Voltage Density
Input Current-Noise Density
I
CC
LMX358 (dual)
LMX324 (quad)
SR
GBW
φ
M
GM
e
n
i
n
1V step Input
C
L
= 200pF
2
_______________________________________________________________________________________
Single/Dual/Quad, General-Purpose,
Low-Voltage, Rail-to-Rail Output Op Amps
ELECTRICAL CHARACTERISTICS
(V
CC
= +2.7V, V
EE
= 0V, V
OUT
= V
CC
/2, V
CM
= 1V, R
L
> 1MΩ, T
A
=
-40°C to +125°C,
unless otherwise noted.) (Note 1)
PARAMETER
DC CHARACTERISTICS
Input Offset Voltage
Input Bias Current
Input Offset Current
Common-Mode Rejection
Ratio
Power-Supply Rejection Ratio
Input Common-Mode Voltage
Range
Large-Signal Voltage Gain
V
OS
I
B
I
OS
CMRR
PSRR
V
CM
A
VOL
-0.1 < V
CM
< +1.7V
2.3V < V
CC
< 7V, V
OUT
= 1V
For CMRR > 60dB
Limit
Typ
V
CC
- V
OH
V
OL
V
CC
- V
OH
V
OL
60
75
-0.1
-0.1
10
130
50
150
70
180
360
720
µA
mV
+1.7
+1.8
9
70
15
mV
nA
nA
dB
dB
V
V/mV
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
LMX321/LMX358/LMX324
R
L
= 2kΩ to V
EE
, 0.3V < V
OUT
< 2.4V
R
L
= 10kΩ to 1.55V
Output-Voltage Swing
V
OUT
R
L
= 2kΩ to 1.35V
LMX321 (single)
Supply Current
I
CC
LMX358 (dual)
LMX324 (quad)
ELECTRICAL CHARACTERISTICS
(V
CC
= +5V, V
EE
= 0V, V
OUT
= V
CC
/2, V
CM
= 2V, R
L
> 1MΩ,
T
A
= +25°C,
unless otherwise noted.)
PARAMETER
DC CHARACTERISTICS
Input Offset Voltage
Input Offset Voltage Average Drift
Input Bias Current
Input Offset Current
Input Differential Clamp Voltage
Common-Mode Rejection Ratio
Power-Supply Rejection Ratio
Input Common-Mode Voltage
Range
Large-Signal Voltage Gain
V
OS
TCV
OS
I
B
I
OS
V
CLAMP
CMRR
PSRR
V
CM
A
VOL
Force 100µA into IN+, IN- =
GND measure V
IN+
- V
IN-
,
Figure 1
-0.2 < V
CM
< +4.1V
2.3V < V
CC
< 7V, V
OUT
= 1V,
V
CM
= 1V
For CMRR > 72dB
R
L
= 2kΩ to V
EE
,
0.3V < V
OUT
< 4.7V
Limit
Typ
72
82
-0.2
-0.2
40
200
1
6
18
1
3.1
92
96
+4.1
+4.2
50
8
6
mV
µV/
o
C
nA
nA
V
dB
dB
V
V/mV
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
_______________________________________________________________________________________
3
Single/Dual/Quad, General-Purpose,
Low-Voltage, Rail-to-Rail Output Op Amps
LMX321/LMX358/LMX324
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +5V, V
EE
= 0V, V
OUT
= V
CC
/2, V
CM
= 2V, R
L
> 1MΩ,
T
A
= +25°C,
unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
R
L
= 10kΩ to 2.5V
Output-Voltage Swing
V
OUT
R
L
= 2kΩ to 2.5V
Output Short-Circuit Current
I
SC
Sourcing, V
OUT
= 0V
Sinking, V
OUT
= 5V
LMX321 (single)
Supply Current
AC CHARACTERISTICS
Slew Rate
Gain-Bandwidth Product
Phase Margin
Gain Margin
Input Noise-Voltage Density
Input Noise-Current Density
SR
GBW
φ
M
GM
e
n
i
n
f = 1kHz
f = 1kHz
3V step input
C
L
= 200pF
1
1.3
65
25
65
0.13
V/µs
MHz
degrees
dB
nV/√Hz
pA/√Hz
I
CC
LMX358 (dual)
LMX324 (quad)
V
CC
- V
OH
V
OL
V
CC
- V
OH
V
OL
5
10
MIN
TYP
20
12
65
40
25
28
120
240
480
170
340
680
µA
MAX
60
40
130
80
mA
mV
UNITS
ELECTRICAL CHARACTERISTICS
(V
CC
= +5V, V
EE
= 0V, V
OUT
= V
CC
/2, V
CM
= 2V, R
L
> 1MΩ,
T
A
= -40°C to +125°C,
unless otherwise noted.) (Note 1)
PARAMETER
DC CHARACTERISTICS
Input Offset Voltage
Input Bias Current
Input Offset Current
Common-Mode Rejection Ratio
Power-Supply Rejection Ratio
Input Common-Mode Voltage
Range
Large-Signal Voltage Gain
V
OS
I
B
I
OS
CMRR
PSRR
V
CM
A
VOL
-0.1 < V
CM
< +4.0V
2.3V < V
CC
< 7V, V
OUT
= 1V, V
CM
= 1V
For CMRR > 63dB
Limit
Typ
V
CC
- V
OH
V
OL
V
CC
- V
OH
V
OL
63
75
-0.1
-0.1
20
170
70
190
90
210
420
840
µA
mV
+4.0
+4.1
9
70
15
mV
nA
nA
dB
dB
V
V/mV
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
R
L
= 2kΩ to V
EE
, 0.3V < V
OUT
< 4.7V
R
L
= 10kΩ to 2.5V
Output-Voltage Swing
V
OUT
R
L
= 2kΩ to 2.5V
LMX321 (single)
Supply Current
I
CC
LMX358 (dual)
LMX324 (quad)
Note 1:
Specifications are 100% tested at T
A
= +25°C (exceptions noted). All temperature limits are guaranteed by design.
4
_______________________________________________________________________________________
