1
OPA4243
FEATURES
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MICRO-SIZE, TSSOP PACKAGE
q
SINGLE-SUPPLY OPERATION
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WIDE SUPPLY RANGE: 2.2V to 36V
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LOW QUIESCENT CURRENT: 45
A /chan
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WIDE BANDWIDTH: 430kHz
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WIDE INPUT/OUTPUT SWING
DESCRIPTION
The OPA4243 is a four-channel op amp specifically
designed for high density, space-limited applications,
such as LCD bias drivers, PCMCIA cards, battery-
packs and portable instruments. In addition to small
size, this part features wide output swing, very low
quiescent current, and low bias current. Other features
include unity gain stability and the best speed power
ratio available. Power supplies in the range of 2.2V to
36V (
1.1V to
18V) can be used.
Each channel uses completely independent circuitry
for lowest crosstalk and freedom from interaction,
even when overloaded. In addition, the amplifier is
free from output inversion when the inputs are driven
to the rail. The OPA4243EA is supplied in the minia-
ture TSSOP-14 surface mount package. Specifications
apply from 40
C to +85
C. However, as the exten-
sive typical performance curves indicate, the OPA4243
can be used over the full 55
C to +125
C range. A
SPICE macromodel is available for design analysis.
Quad OPERATIONAL AMPLIFIER
Micro
POWER, Single-Supply
OPA4243
APPLICATIONS
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LCD DISPLAY DRIVERS
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BATTERY POWERED SYSTEMS
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PORTABLE EQUIPMENT
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PCMCIA CARDS
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BATTERY PACKS AND POWER SUPPLIES
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CONSUMER PRODUCTS
1999 Burr-Brown Corporation
PDS-1562A
Printed in U.S.A. November, 1999
For most current data sheet and other product
information, visit www.burr-brown.com
OPA4243
International Airport Industrial Park Mailing Address: PO Box 11400, Tucson, AZ 85734 Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 Tel: (520) 746-1111
Twx: 910-952-1111 Internet: http://www.burr-brown.com/ Cable: BBRCORP Telex: 066-6491 FAX: (520) 889-1510 Immediate Product Info: (800) 548-6132
1
2
3
4
5
6
7
14
13
12
11
10
9
8
Output D
Input D
+Input D
V
+Input C
Input C
Output C
Output A
Input A
+Input A
+V
+Input B
Input B
Output B
OPA4243EA
TSSOP-14
OPA4243
2
OPA4243
SPECIFICATIONS: V
S
= +2.6V to +36V
Boldface limits apply over the specified temperature range, T
A
= 40
C to +85
C
At T
A
= +25
C, R
L
= 20k
connected to ground, unless otherwise noted.
OPA4243EA
PARAMETER
CONDITIONS
MIN
TYP
(1)
MAX
UNITS
OFFSET VOLTAGE
Input Offset Voltage
V
OS
V
S
=
7.5V, V
CM
= 0
2
5
mV
Over Temperature
6
mV
vs Temperature
dV
OS
/dT
T
A
= 40
C to +85
C
2.5
V/
C
vs Power Supply
PSRR
V
S
= +2.6V to +36V
2.5
100
V/V
Over Temperature
V
S
= +2.6V to +36V
100
V/V
Channel Separation
140
dB
INPUT BIAS CURRENT
Input Bias Current
I
R
V
CM
= V
S
/2
10
25
nA
Input Offset Current
I
OS
V
CM
= V
S
/2
1
10
nA
NOISE
Input Noise Voltage, f = 0.1 to 10Hz
0.4
Vp-p
Input Noise Voltage Density, f = 1kHz
e
n
22
nV/
Hz
Current Noise Density, f = 1kHz
i
n
40
fA/
Hz
INPUT VOLTAGE RANGE
Common-Mode Voltage Range
V
CM
0
(V+) 0.9
V
Common-Mode Rejection
CMRR
V
S
=
18V, V
CM
= 18V to +17.1V
82
104
dB
Over Temperature
V
S
=
18V, V
CM
= 18V to +17.1V
82
dB
INPUT IMPEDANCE
Differential
10
6
|| 2
|| pF
Common-Mode
10
9
|| 2
|| pF
OPEN-LOOP GAIN
Open-Loop Voltage Gain
A
OL
V
O
= 0.5V to (V+) 0.9
86
104
dB
Over Temperature
V
O
= 0.5V to (V+) 0.9
86
dB
FREQUENCY RESPONSE
Gain-Bandwidth Product
GBW
430
kHz
Slew Rate
SR
G = 1
0.1,
0.16
V/
s
Setting Time, 0.01%
10V Step
150
s
Overload Recovery Time
V
IN
Gain = V
S
8
s
OUTPUT
Voltage Output, Positive
V
O
A
OL
80dB, R
L
= 20k
to V
S
/2
(V+) 0.9
(V+) 0.75
V
Over Temperature
A
OL
80dB, R
L
= 20k
to V
S
/2
(V+) 0.9
(V+) 0.75
V
Voltage Output, Negative
A
OL
80dB, R
L
= 20k
to V
S
/2
0.5
0.2
V
Over Temperature
A
OL
80dB, R
L
= 20k
to V
S
/2
0.5
0.2
V
Voltage Output, Positive
A
OL
80dB, R
L
= 20k
to Ground
(V+) 0.75
V
Over Temperature
A
OL
80dB, R
L
= 20k
to Ground
(V+) 0.75
V
Voltage Output, Negative
A
OL
80dB, R
L
= 20k
to Ground
0.1
V
Over Temperature
A
OL
80dB, R
L
= 20k
to Ground
0.1
V
Short-Circuit Current
I
SC
25, +12
mA
Capacitive Load Drive
C
LOAD
See Typical Curve
POWER SUPPLY
Specified Voltage Range
V
S
Over Temperature
+2.6
+36
V
Minimum Operating Voltage
+2.2
V
Quiescent Current
I
O
I
O
= 0
45
60
A
Over Temperature
I
O
= 0
70
A
TEMPERATURE RANGE
Specified Range
40
85
C
Operating Range
55
125
C
Storage Range
65
150
C
Thermal Resistance
JA
TSSOP-14 Surface Mount
100
C/W
NOTE: (1) V
S
= +15V.
3
OPA4243
Supply Voltage, V+ to V .................................................................... 36V
Input Voltage Range
(2)
................................... (V) 0.3V to (V+) + 0.3V
Input Current
(2)
................................................................................. 10mA
Output Short-Circuit
(3)
.............................................................. Continuous
Operating Temperature .................................................. 55
C to +125
C
Storage Temperature ..................................................... 65
C to +150
C
Junction Temperature ...................................................................... 150
C
Lead Temperature (soldering, 10s) ................................................. 300
C
ESD Capability ................................................................................ 2000V
NOTES: (1) Stresses above these ratings may cause permanent damage.
Exposure to absolute maximum conditions for extended periods may degrade
device reliability. (2) Inputs are diode-clamped to the supply rails and should
be current-limited to 10mA or less if input voltages can exceed rails by more
than 0.3V. (3) Short-circuit to ground, one amplifier per package.
ABSOLUTE MAXIMUM RATINGS
(1)
PACKAGE/ORDERING INFORMATION
PACKAGE
SPECIFIED
DRAWING
TEMPERATURE
PACKAGE
ORDERING
TRANSPORT
PRODUCT
PACKAGE
NUMBER
RANGE
MARKING
NUMBER
(1)
MEDIA
OPA4243EA
TSSOP-14
357
40
C to +85
C
OPA4243EA
OPA4243EA/250
Tape and Reel
"
"
"
"
"
OPA4243EA/2K5
Tape and Reel
NOTE: (1) Models with a slash (/) are available only in Tape and Reel in the quantities indicated (e.g., /2K5 indicates 2500 devices per reel). Ordering 2500 pieces
of "OPA4243EA" will get a single 2500-piece Tape and Reel.
ELECTROSTATIC
DISCHARGE SENSITIVITY
This integrated circuit can be damaged by ESD. Burr-Brown
recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling
and installation procedures can cause damage.
ESD damage can range from subtle performance degrada-
tion to complete device failure. Precision integrated circuits
may be more susceptible to damage because very small
parametric changes could cause the device not to meet its
published specifications.
4
OPA4243
TYPICAL PERFORMANCE CURVES
At T
A
= +25
C, R
L
= 20k
connected to ground, unless otherwise noted.
INPUT VOLTAGE AND CURRENT NOISE
SPECTRAL DENSITY vs FREQUENCY
Frequency (Hz)
Voltage Noise (nV
Hz)
1000
100
10
1
1
10
100
1k
10k
100k
Current Noise (fA
Hz)
1000
100
10
1
Voltage Noise
Current Noise
60
55
50
45
40
35
30
20
30
25
20
15
+15
+10
+5
0
Short-Circuit Current (mA)
Quiescent Current (
A)
QUIESCENT CURRENT vs TEMPERATURE
75
50
25
0
25
50
75
100
125
Temperature (
C)
V
S
=
15V
I
SC
+I
SC
I
Q
180
160
140
120
100
80
60
40
20
0
20
OPEN-LOOP GAIN AND PHASE vs FREQUENCY
1
Frequency (Hz)
10
100
1k
10k
100k
1M
0
20
40
60
80
100
120
140
160
180
200
A
OL
(dB)
Phase(
)
V
S
=
15V
Gain
Phase
POWER SUPPLY AND COMMON-MODE
REJECTION RATIO vs FREQUENCY
1
10
100
1k
10k
100k
1M
Frequency (Hz)
120
110
100
90
80
70
60
50
40
30
PSRR, CMRR (dB)
V
S
=
15V
CMRR
PSRR
52
48
44
40
36
32
28
24
Quiescent Current (
A)
0
4
8
12
16
20
24
28
32
36
35
30
25
20
15
10
5
0
Short-Circuit Current (mA)
Supply Voltage (V)
QUIESCENT CURRENT AND SHORT-CIRCUIT
vs SUPPLY VOLTAGE
+I
SC
I
SC
I
Q
160
150
140
130
120
110
100
90
80
70
60
CHANNEL SEPARATION
1
10
100
1k
10k
100k
Separation (dB)
V
S
=
15V
Frequency (Hz)
5
OPA4243
TYPICAL PERFORMANCE CURVES
(Cont.)
At T
A
= +25
C, R
L
= 20k
connected to ground, unless otherwise noted.
125
120
115
110
105
100
95
90
85
80
75
50
25
0
25
50
75
100
125
A
OL
, CMRR, PSRR vs TEMPERATURE
Temperature(
C)
V
S
=
15V
PSRR
CMRR
A
OL
0
2
4
6
8
10
12
14
16
Input Bias Current (nA)
INPUT BIAS CURRENT vs TEMPERATURE
60
40
20
0
20
40
60
80
100
120
140
Temperature (C
)
I
B
+I
B
V
S
=
15V
30
25
20
15
10
5
0
3.2 2.4 1.6 0.8
0
0.8
1.6
2.4
3.2
Offset Voltage (mV)
OFFSET VOLTAGE PRODUCTION DISTRIBUTION
Production Distribution (%)
V
S
=
7.5V
30
25
20
15
10
5
0
15
10
5
0
5
10
15
INPUT BIAS CURRENT
vs INPUT COMMON-MODE VOLTAGE
V
S
=
15V
Common-Mode Voltage (V)
120
100
80
60
40
20
0
COMMON-MODE REJECTION
vs SUPPY VOLTAGE
0
4
8
12
16
20
24
28
32
36
Suppy Voltage (V)
CMRR (dB)
12
8
4
0
0
1
2
3
4
5
6
7
8
9
10
OFFSET VOLTAGE DRIFT
PRODUCTION DISTRIBUTION
V
OS
Drift (
V/
C)
V
S
=
7.5V
Production Distribution (%)
6
OPA4243
OUTPUT VOLTAGE SWING vs OUTPUT CURRENT
15
14
13
12
11
10
10
11
12
13
14
15
0
2
4
6
8
10
14
12
Output Current (mA)
Output Voltage Swing (V)
25C
125C
55C
55C
125C
25C
R
L
to V
S
/2
TYPICAL PERFORMANCE CURVES
(Cont.)
At T
A
= +25
C, R
L
= 20k
connected to ground, unless otherwise noted.
30
25
20
15
10
5
0
30
35
40
45
50
55
Quiescent Current Per Channel (
A)
Production Distribution (%)
QUIESCENT CURRENT
PRODUCTION DISTRIBUTION
25
60
40
35
30
25
20
15
10
5
0
100
1k
10k
100k
1M
Frequency(Hz)
Output V
oltage (Vp-p)
MAXIMUM OUTPUT VOLTAGE vs FREQUENCY
V
S
= 2.7V
V
S
=15V
V
S
= 36V
70%
60%
50%
40%
30%
20%
10%
0%
10
100
1k
10k
SMALL-SIGNAL OVERSHOOT
vs LOAD CAPACITANCE
Load Capacitance (pF)
Overshoot (%)
G = +1, R
L
=
G = +1, R
L
= 20k
G = +2, R
L
= 20k
G = +3, R
L
= 20k
120
110
100
90
80
70
60
1
10
100
OPEN-LOOP GAIN vs LOAD RESISTANCE
Gain(dB)
Load (k
)
V
S
=
15V,
V
O
=
5V
0.20
0.18
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0.00
75
25
25
75
125
175
Temperature (
C)
SLEW RATE vs TEMPERATURE
V
S
=
7.5, R
L
= 20k
,
C
L
= 100pF, Gain = +1
+SR
SR
Slew Rate (V/
s)
7
OPA4243
TYPICAL PERFORMANCE CURVES
(Cont.)
At T
A
= + 25
C, R
L
= 20k
connected to ground, unless otherwise noted.
LARGE-SIGNAL STEP RESPONSE
(V
S
=
7.5, G = +1, R
L
= 20k
, C
L
= 100pF)
2V/div
50
s/div
SMALL-SIGNAL STEP RESPONSE
(V
S
=
7.5V, G = +1, R
L
= 20k
, C
L
= 100pF)
50mV/div
10
s/div
APPLICATION INFORMATION
The OPA4243 is unity-gain stable and suitable for a wide
range of general-purpose applications. The power supply
pins should be bypassed with 0.01
F ceramic capacitors.
OPERATING VOLTAGE
The OPA4243 can operate from single supply (2.2V to 36V)
or dual supplies (
1.1V to
18V) with excellent perfor-
mance. Unlike most op amps which are specified at only one
supply voltage, the OPA4243 is specified for real world
applications; a single set of specifications applies through-
out the 2.6V to 36V supply range. This allows the designer
to have the same assured performance at any supply voltage
within this range.
In addition, many key parameters are guaranteed over the
specified temperature range, 40
C to +85
C. Most behav-
iors remain unchanged throughout the full operating voltage
range. Parameters, which vary significantly with operating
voltage or temperature, are shown in the typical perfor-
mance curves.
PRINTED CIRCUIT BOARD LAYOUT
See Burr-Brown Application Note AB-132 for specific PC
board layout recommendations.
INPUT PROTECTION
Rail-to-rail input signals will not cause damage or invert the
output of the OPA4243. To protect against ESD and exces-
sive input voltage (beyond the supply rails) the OPA4243
includes diodes from the input terminals to the power supply
rails. Normally, these diodes are reversed biased and have
negligible effect on circuit operation. However, if the input
voltage is allowed to exceed the supply voltages by enough
to forward bias these diodes (generally, 0.3V to 0.6V)
excessive input current could flow. If this condition could
occur (for example, if an input signal is applied when the op
amp supply voltage is zero), care should be taken to limit the
input current to less than 10mA to avoid damage. An input
signal beyond the supplies, with power applied, can cause an
unexpected output inversion.
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