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1
FN7455.4
EL8186
Micropower Single Supply Rail-to-Rail
Input-Output Op Amp
The EL8186 is a micropower operational amplifier optimized
for single supply operation at 5V and can operate down to
2.4V.
The EL8186 draws minimal supply current while meeting
excellent DC-accuracy noise and output drive specifications.
Competing devices seriously degrade these parameters to
achieve micropower supply current. Offset current, voltage
and current noise, slew rate, and gain-bandwidth product are
all two to ten times better than on previous micropower op
amps.
The EL8186 can be operated from one lithium cell or two
Ni-Cd batteries. The input range includes both positive and
negative rail. The output swings to both rails.
Features
55A supply current
400V typical offset voltage
500pA input bias current
400kHz gain-bandwidth product
1MHz -3dB bandwidth
0.13V/s slew rate
Single supply operation down to 2.4V
Rail-to-rail input and output
Output sources and sinks 26mA load current
Pb-Free plus anneal available (RoHS compliant)
Applications
Battery- or solar-powered systems
4mA to 25mA current loops
Handheld consumer products
Medical devices
Thermocouple amplifiers
Photodiode pre amps
pH probe amplifiers
Pinouts
EL8186
(6-PIN SOT-23)
TOP VIEW
EL8186
(8-PIN SO)
TOP VIEW
Ordering Information
PART NUMBER
(BRAND)
PACKAGE
TAPE &
REEL
PKG. DWG. #
EL8186IW-T7
(BBJA)
6-Pin SOT-23
7" (3K pcs)
MDP0038
EL8186IW-T7A
(BBJA)
6-Pin SOT-23
7" (250 pcs)
MDP0038
EL8186IWZ-T7
(BBJA) (Note)
6-Pin SOT-23
(Pb-free)
7" (3K pcs)
MDP0038
EL8186IWZ-T7A
(BBJA) (Note)
6-Pin SOT-23
(Pb-free)
7" (250 pcs)
MDP0038
EL8186ISZ
(Note)
8-Pin SO
(Pb-free)
-
MDP0027
EL8186ISZ-T7
(Note)
8-Pin SO
(Pb-free)
7"
MDP0027
EL8186ISZ-T13
(Note)
8-Pin SO
(Pb-free)
13"
MDP0027
NOTE: Intersil Pb-free plus anneal products employ special Pb-free
material sets; molding compounds/die attach materials and 100%
matte tin plate termination finish, which are RoHS compliant and
compatible with both SnPb and Pb-free soldering operations. Intersil
Pb-free products are MSL classified at Pb-free peak reflow
temperatures that meet or exceed the Pb-free requirements of
IPC/JEDEC J STD-020.
1
2
3
6
4
5
+ -
OUT
VS-
IN+
VS+
ENABLE
IN-
1
2
3
4
8
7
6
5
-
+
NC
IN-
IN+
ENABLE
VS+
VOUT
VS-
NC
Data Sheet
August 23, 2005
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2004, 2005. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
2
FN7455.4
August 23, 2005
Absolute Maximum Ratings
(T
A
= 25C)
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5V
Differential Input Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5mA
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to V
S
+ 0.5V
Output Short-Circuit Duration . . . . . . . . . . . . . . . . . . . . . . .Indefinite
Ambient Operating Temperature Range . . . . . . . . . .-40C to +85C
Storage Temperature Range . . . . . . . . . . . . . . . . . .-65C to +150C
CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
IMPORTANT NOTE: All parameters having Min/Max specifications are guaranteed. Typical values are for information purposes only. Unless otherwise noted, all tests
are at the specified temperature and are pulsed tests, therefore: T
J
= T
C
= T
A
Electrical Specifications
V
S
= 5V, 0V, V
CM
= 0.1V, V
O
= 1.4V, T
A
= 25C unless otherwise specified.
PARAMETER
DESCRIPTION
CONDITIONS
MIN
TYP
MAX
UNIT
V
OS
Input Offset Voltage
0.4
1
mV
Input Offset Drift vs Temperature
1
V/C
I
OS
Input Offset Current
0.4
2
nA
I
B
Input Bias Current
0.5
3
nA
e
N
Input Noise Voltage Density
f
O
= 1kHz
25
nV/
Hz
i
N
Input Noise Current Density
f
O
= 1kHz
0.1
pA/
Hz
CMIR
Input Voltage Range
Guaranteed by CMRR test
0
5
V
CMRR
Common-Mode Rejection Ratio
V
CM
= 0V to 5V
90
110
dB
PSRR
Power Supply Rejection Ratio
V
S
= 2.4V to 5V
90
110
dB
A
VOL
Large Signal Voltage Gain
V
O
= 0.5V to 4.5V, R
L
= 100k
200
500
V/mV
V
O
= 0.5V to 4.5V, R
L
= 1k
25
V/mV
V
OUT
Maximum Output Voltage Swing
Output low, R
L
= 100k
3
6
mV
Output low, R
L
= 1k
130
200
mV
Output high, R
L
= 100k
4.994
4.997
V
Output high, R
L
= 1k
4.8
4.88
V
SR
Slew Rate
0.09
0.13
0.17
V/s
GBW
Gain Bandwidth Product
f
O
= 100kHz
400
kHz
BW
-3dB Bandwidth
Unity gain, C
LOAD
= 27pF, R
F
= 100
1
MHz
I
S,ON
Supply Current, Enabled
40
55
75
A
I
S,OFF
Supply Current, Disabled
3
10
A
I
O
+
Short Circuit Output Current
R
L
= 10
18
31
mA
I
O
-
Short Circuit Output Current
R
L
= 10
17
26
mA
V
S
Minimum Supply Voltage
2.2 2.4 V
V
INH
Enable Pin High Level
2
V
V
INL
Enable Pin Low Level
0.8
V
I
ENH
Enable Pin Input Current
V
EN
= 5V
0.25
0.7
2
A
I
ENL
Enable Pin Input Current
V
EN
= 0V
-0.5
0
+0.5
A
V
OS
T
----------------
EL8186
3
FN7455.4
August 23, 2005
Typical Performance Curves
FIGURE 1. UNITY GAIN FREQUENCY RESPONSE vs
SUPPLY VOLTAGE
FIGURE 2. FREQUENCY RESPONSE vs SUPPLY VOLTAGE
FIGURE 3. SUPPLY CURRENT vs SUPPLY VOLTAGE
FIGURE 4. INPUT OFFSET VOLTAGE vs OUTPUT VOLTAGE
FIGURE 5. INPUT OFFSET VOLTAGE vs COMMON-MODE
INPUT VOLTAGE
FIGURE 6. INPUT BIAS + OFFSET CURRENTS vs COMMON-
MODE INPUT VOLTAGE
-6
-3
0
3
6
1K
10K
100K
1M
10M
FREQUENCY (Hz)
G
A
IN (
d
B
)
V
S
=2.5V
-9
A
V
=1
C
L
=27pF
R
F
=100
R
G
=OPEN
V
S
=1.25V
V
S
=1.0V
A
V
=100
R
L
=10k
C
L
=2.7pF
R
F
/R
G
=99.02
R
F
=221k
R
G
=2.23k
0
GAI
N
(
d
B)
15
20
25
40
45
30
35
5
10
100
10K
100K
1M
FREQUENCY (Hz)
1K
V
S
=1.0V
V
S
=1.25V
V
S
=2.5V
2
3.5
4
5.5
SUPPLY VOLTAGE (V)
2.5
5
4.5
3
0
SUPPL
Y CURR
E
N
T
(A)
20
50
60
30
40
10
-200
IN
P
U
T OFF
S
E
T
VO
L
T
A
G
E (
V)
-100
0
150
200
50
100
0
5
OUTPUT VOLTAGE (V)
1
3
2
4
V
DD
=2.5V
V
DD
=5V
V
CM
=V
DD
/2
A
V
=-1
-150
-50
-100
IN
P
U
T OF
FSE
T
VO
L
T
A
G
E (
V)
-80
-20
0
-60
-40
0
5
COMMON-MODE INPUT VOLTAGE (V)
1
3
2
4
V
OS
, V
1
INPUT BIAS, OFFSET CUR
RE
NT
S
(pA)
1K
10K
10
100
0
5
COMMON-MODE INPUT VOLTAGE (V)
1
3
2
4
I
B
+
I
OS
I
B
-
EL8186
4
FN7455.4
August 23, 2005
FIGURE 7. A
VOL
vs FREQUENCY @ 1k
LOAD
FIGURE 8. A
VOL
vs FREQUENCY @ 100k
LOAD
FIGURE 9. PSRR vs FREQUENCY
FIGURE 10. CMRR vs FREQUENCY
FIGURE 11. VOLTAGE NOISE vs FREQUENCY
FIGURE 12. CURRENT NOISE vs FREQUENCY
Typical Performance Curves
(Continued)
-20
GA
IN (
d
B)
0
20
80
100
40
60
10
10K
1M
FREQUENCY (Hz)
100
-150
PHASE
(
)
200
150
100
50
0
-50
-100
100K
1K
PHASE
GAIN
-80
GA
IN (
d
B)
40
120
80
-40
0
1
1K
100K
10M
FREQUENCY (Hz)
10
-120
PHASE
(
)
80
40
0
-40
-80
10K
1M
100
0
10
20
30
40
50
60
70
80
90
100
110
120
1
10
100
1K
10K
100K
1M
FREQUENCY (Hz)
P
S
RR (dB)
PSRR+
PSRR-
0
10
20
30
40
50
60
70
80
90
100
110
120
1
10
100
1K
10K
100K
1M
FREQUENCY (Hz)
CMR
R
(dB)
1K
100
10
1
10
100
1K
10K
100K
VOL
T
AGE
NO
IS
E
(nV/
Hz
)
FREQUENCY (Hz)
0.01
0.10
1.00
10.00
1
100
10K
100K
FREQUENCY (Hz)
CURRENT NOIS
E (
p
A
/
Hz)
10
1K
EL8186
5
FN7455.4
August 23, 2005
FIGURE 13. V
OS
vs TEMPERATURE
FIGURE 14. PSRR vs TEMPERATURE
FIGURE 15. CMRR vs TEMPERATURE
FIGURE 16. A
VOL
vs TEMPERATURE
FIGURE 17. I
B
vs TEMPERATURE
FIGURE 18. I
S
vs TEMPERATURE
Typical Performance Curves
(Continued)
-500
-400
-300
-200
-100
0
100
200
300
400
500
-50
0
50
100
TEMPERATURE (C)
INPUT OFFSET VO
LTAG
E
(
V
)
SOT23-6 PACKAGE
10 SAMPLES
90
95
100
105
110
115
120
125
130
-50
0
50
100
TEMPERATURE (C)
P
S
RR (
d
B
)
SOT23-6
PACKAGE
90
95
100
105
110
115
120
-60
-40
-20
0
20
40
60
80
100
TEMPERATURE (C)
CMRR
(dB)
SOT23-6
PACKAGE
100
105
110
115
120
125
130
-60
-40
-20
0
20
40
60
80
100
TEMPERATURE (C)
OP
EN LO
OP GAI
N
(
d
B)
SOT23-6
PACKAGE
-1500
-1000
-500
0
500
1000
1500
2000
-60
-40
-20
0
20
40
60
80
100
TEMPERATURE (C)
I
B
(pA)
SOT23-6
PACKAGE
30
35
40
45
50
55
60
65
70
-60
-40
-20
0
20
40
60
80
100
TEMPERATURE (C)
I
S
(m
A
)
SOT23-6
PACKAGE
EL8186
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