Page 1
1
®
OPA4243
FEATURES
● MICRO-SIZE, TSSOP PACKAGE
● SINGLE-SUPPLY OPERATION
● WIDE SUPPLY RANGE: 2.2V to 36V
● LOW QUIESCENT CURRENT: 45µA/chan
● WIDE BANDWIDTH: 430kHz
● 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, batterypacks 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 miniature TSSOP-14 surface mount package. Specifications
apply from –40°C to +85°C. However, as the extensive 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
● LCD DISPLAY DRIVERS
● BATTERY POWERED SYSTEMS
● PORTABLE EQUIPMENT
● PCMCIA CARDS
● BATTERY PACKS AND POWER SUPPLIES
● 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
Page 2
2
®
OPA4243
SPECIFICATIONS: VS = +2.6V to +36V
Boldface limits apply over the specified temperature range, TA = –40°C to +85°C
At TA = +25°C, RL = 20kΩ connected to ground, unless otherwise noted.
OPA4243EA
PARAMETER CONDITIONS MIN TYP
(1)
MAX UNITS
OFFSET VOLTAGE
Input Offset Voltage V
OS
VS = ±7.5V, V
CM
= 0 ±2 ±5mV
Over Temperature
±6 mV
vs Temperature dV
OS
/dT TA = –40°C to +85°C ±2.5 µV/°C
vs Power Supply PSRR V
S
= +2.6V to +36V 2.5 100 µV/V
Over Temperature V
S
= +2.6V to +36V 100 µV/V
Channel Separation 140 dB
INPUT BIAS CURRENT
Input Bias Current I
R
VCM = VS/2 –10 –25 nA
Input Offset Current I
OS
VCM = VS/2 ±1 ±10 nA
NOISE
Input Noise Voltage, f = 0.1 to 10Hz 0.4 µVp-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, VCM = –18V to +17.1V 82 104 dB
Over Temperature V
S
= ±18V, VCM = –18V to +17.1V 82 dB
INPUT IMPEDANCE
Differential 10
6
|| 2 Ω || pF
Common-Mode 10
9
|| 2 Ω || pF
OPEN-LOOP GAIN
Open-Loop Voltage Gain A
OL
VO = 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/µs
Setting Time, 0.01% 10V Step 150 µs
Overload Recovery Time V
IN
• Gain = V
S
8 µs
OUTPUT
Voltage Output, Positive V
O
A
OL ≥
80dB, RL = 20kΩ to VS/2 (V+) – 0.9 (V+) – 0.75 V
Over Temperature A
OL ≥
80dB, RL = 20kΩ to VS/2 (V+) – 0.9 (V+) – 0.75 V
Voltage Output, Negative A
OL ≥
80dB, RL = 20kΩ to VS/2 0.5 0.2 V
Over Temperature A
OL ≥
80dB, RL = 20kΩ to VS/2 0.5 0.2 V
Voltage Output, Positive A
OL ≥
80dB, RL = 20kΩ to Ground (V+) – 0.75 V
Over Temperature A
OL ≥
80dB, RL = 20kΩ to Ground (V+) – 0.75 V
Voltage Output, Negative A
OL ≥
80dB, RL = 20kΩ to Ground 0.1 V
Over Temperature A
OL ≥
80dB, RL = 20kΩ 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
IO = 0 45 60 µA
Over Temperature I
O
= 0 70 µA
TEMPERATURE RANGE
Specified Range –40 85 °C
Operating Range –55 125 °C
Storage Range –65 150 °C
Thermal Resistance
θ
JA
TSSOP-14 Surface Mount 100 °C/W
NOTE: (1) V
S
= +15V.
Page 3
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 degradation 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.
Page 4
4
®
OPA4243
TYPICAL PERFORMANCE CURVES
At TA = +25°C, RL = 20kΩ 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 (µA)
QUIESCENT CURRENT vs TEMPERATURE
–75
–50
–25
025
50
75
100
125
Temperature (°C)
VS = ±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(°)
VS = ±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)
VS = ±15V
CMRR
PSRR
52
48
44
40
36
32
28
24
Quiescent Current (µA)
0
4
812
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)
VS = ±15V
Frequency (Hz)
Page 5
5
®
OPA4243
TYPICAL PERFORMANCE CURVES (Cont.)
At TA = +25°C, RL = 20kΩ 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)
VS = ±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
VS = ±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 (%)
VS = ±7.5V
–30
–25
–20
–15
–10
–5
0
–15
–10
–5
0
5
10
15
INPUT BIAS CURRENT
vs INPUT COMMON-MODE VOLTAGE
VS = ±15V
Common-Mode Voltage (V)
120
100
80
60
40
20
0
COMMON-MODE REJECTION
vs SUPPY VOLTAGE
04
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 (µV/°C)
V
S
= ±7.5V
Production Distribution (%)
Page 6
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)
25°C
125°C
–55°C
–55°C
125°C
25°C
RL to VS/2
TYPICAL PERFORMANCE CURVES (Cont.)
At TA = +25°C, RL = 20kΩ connected to ground, unless otherwise noted.
30
25
20
15
10
5
0
30
35
40
45
50
55
Quiescent Current Per Channel (µA)
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 Voltage (Vp-p)
MAXIMUM OUTPUT VOLTAGE vs FREQUENCY
VS = 2.7V
VS =15V
VS = 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, RL = ∞
G = +1, R
L
= 20kΩ
G = +2, RL = 20kΩ
G = +3, RL = 20kΩ
120
110
100
90
80
70
60
1
10 100
OPEN-LOOP GAIN vs LOAD RESISTANCE
Gain(dB)
Load (kΩ)
VS = ±15V, VO = ±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
VS = ±7.5, RL = 20kΩ,
C
L
= 100pF, Gain = +1
+SR
–SR
Slew Rate (V/µs)
Page 7
7
®
OPA4243
TYPICAL PERFORMANCE CURVES (Cont.)
At TA = + 25°C, RL = 20kΩ connected to ground, unless otherwise noted.
LARGE-SIGNAL STEP RESPONSE
(V
S
= ± 7.5, G = +1, RL = 20kΩ, CL = 100pF)
2V/div
50µs/div
SMALL-SIGNAL STEP RESPONSE
(V
S
= ±7.5V, G = +1, RL = 20kΩ, CL = 100pF)
50mV/div
10µs/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 0.01µF ceramic capacitors.
OPERATING VOLTAGE
The OPA4243 can operate from single supply (2.2V to 36V)
or dual supplies (±1.1V to ±18V) with excellent performance. 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 throughout 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 behaviors remain unchanged throughout the full operating voltage
range. Parameters, which vary significantly with operating
voltage or temperature, are shown in the typical performance 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 excessive 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.
Loading...