OPA704NA/3KG4 [TI]
Single, 12-V, 3-MHz operational amplifier | DBV | 5 | -40 to 85;
| 型号： | OPA704NA/3KG4 |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | Single, 12-V, 3-MHz operational amplifier | DBV | 5 | -40 to 85 放大器 光电二极管 |
| 文件： | 总14页 (文件大小：321K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
OPA703
OPA2703
OPA4703
OPA703
OPA704
O
P
A
7
0
3
O
P
A
70
3
OPA2704
OPA4704
®
OPA703
SBOS180A – MARCH 2001
CMOS, Rail-to-Rail, I/O
OPERATIONAL AMPLIFIERS
FEATURES
DESCRIPTION
● RAIL-TO-RAIL INPUT AND OUTPUT
The OPA703 and OPA704 series op amps are optimized for
applications requiring rail-to-rail input and output swing.
Single, dual, and quad versions are offered in a variety of
packages. While the quiescent current is less than 200µA per
amplifier, the OPA703 still offers excellent dynamic perfor-
mance (1MHz GBW and 0.6V/µs SR) and unity-gain stabil-
ity. The OPA704 is optimized for gains of 5 or greater and
provides 3MHz GBW and 3V/µs slew rate.
● WIDE SUPPLY RANGE:
Single Supply: 4V to 12V
Dual Supplies: ±2 to ±6
● LOW QUIESCENT CURRENT: 160µA
● FULL-SCALE CMRR: 90dB
● LOW OFFSET: 160µV
● HIGH SPEED:
The OPA703 and OPA704 series are fully specified and
guaranteed over the supply range of ±2V to ±6V. Input
swing extends 300mV beyond the rail and the output swings
to within 40mV of the rail.
OPA703: 1MHz, 0.6V/µs
OPA704: 3MHz, 3V/µs
● MicroSIZE PACKAGES:
SOT23-5, MSOP-8, TSSOP-14
The single versions (OPA703 and OPA704) are available in
the MicroSIZE SOT23-5 and in the standard SO-8 surface-
mount, as well as the DIP-8 packages. Dual versions
(OPA2703 and OPA2704) are available in the MSOP-8,
SO-8, and DIP-8 packages. The quad OPA4703 and
OPA4704 are available in the TSSOP-14 and SO-14 pack-
ages. All are specified for operation from –40°C to +85°C.
● LOW INPUT BIAS CURRENT: 1pA
APPLICATIONS
● AUTOMOTIVE APPLICATIONS:
Audio, Sensor Applications, Security Systems
● PORTABLE EQUIPMENT
● ACTIVE FILTERS
● TRANSDUCER AMPLIFIER
OPA703
OPA704
● TEST EQUIPMENT
● DATA ACQUISITION
NC
V+
NC
1
2
3
4
8
7
6
5
OPA4703
OPA4704
–In
Out
NC
+In
OPA703
OPA704
Out A
–In A
+In A
V+
1
2
3
4
5
6
7
14 Out D
13 –In D
12 +In D
11 V–
V–
Out
V–
1
2
3
5
4
V+
A
B
D
C
OPA2703
OPA2704
SO-8, DIP-8
+In
–In
Out A
–In A
+In A
V–
1
2
3
4
8
7
6
5
V+
+In B
–In B
Out B
10 +In C
A
Out B
–In B
+In B
SOT23-5
9
8
–In C
B
Out C
TSSOP-14, SO-14
MSOP-8, SO-8, DIP-8
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright © 2001, Texas Instruments Incorporated
www.ti.com
ABSOLUTE MAXIMUM RATINGS(1)
ELECTROSTATIC
DISCHARGE SENSITIVITY
Supply Voltage, V+ to V– ................................................................. 13.2V
Signal Input Terminals, Voltage(2) .....................(V–) –0.3V to (V+) +0.3V
Current(2) .................................................... 10mA
This integrated circuit can be damaged by ESD. Texas Instru-
ments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling
and installation procedures can cause damage.
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 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.
NOTES: (1) Stresses above these ratings may cause permanent damage.
Exposure to absolute maximum conditions for extended periods may
degrade device reliability. (2) Input terminals are diode-clamped to the power
supply rails. Input signals that can swing more than 0.3V beyond the supply
rails should be current-limited to 10mA or less. (3) Short-circuit to ground,
one amplifier per package.
PACKAGE/ORDERING INFORMATION
MINIMUM
PACKAGE
RECOMMENDED
DRAWING
NUMBER
PACKAGE
MARKING
ORDERING
NUMBER(1)
TRANSPORT
MEDIA
PRODUCT
DESCRIPTION
GAIN
PACKAGE
OPA703NA
Single, GBW = 1MHz
1
"
SOT23-5
331
"
A03
"
OPA703NA/250
OPA703NA/3K
OPA703UA
OPA703UA/2K5
OPA703PA
Tape and Reel
Tape and Reel
Rails
Tape and Reel
Rails
"
OPA703UA
"
"
"
Single, GBW = 1MHz
"
1
"
SO-8
"
182
"
OPA703UA
"
OPA703PA
Single, GBW = 1MHz
1
DIP-8
006
OPA703PA
OPA2703EA
Dual, GBW = 1MHz
1
"
MSOP-8
337
"
B03
"
OPA2703EA/250
OPA2703EA/2K5
OPA2703UA
OPA2703UA/2K5
OPA2703PA
Tape and Reel
Tape and Reel
Rails
Tape and Reel
Rails
"
"
"
OPA2703UA
"
Dual, GBW = 1MHz
"
1
"
SO-8
"
182
"
OPA2703UA
"
OPA2703PA
Dual, GBW = 1MHz
1
DIP-8
006
OPA2703PA
OPA4703EA
Quad, GBW = 1MHz
1
"
1
"
TSSOP-14
357
"
235
"
OPA4703EA
OPA4703EA/250
OPA4703EA/2K5
OPA4703UA
Tape and Reel
Tape and Reel
Rails
"
"
"
SO-14
"
"
OPA4703UA
Quad, GBW = 1MHz
OPA4703UA
"
"
"
OPA4703UA/2K5
Tape and Reel
OPA704NA
Single, GBW = 5MHz
5
"
SOT23-5
331
"
A04
"
OPA704NA/250
OPA704NA/3K
OPA704UA
OPA704UA/2K5
OPA704PA
Tape and Reel
Tape and Reel
Tape and Reel
Tape and Reel
Rails
"
OPA704UA
"
"
"
Single, GBW = 5MHz
"
5
"
SO-8
"
182
"
OPA704UA
"
OPA704PA
Single, GBW = 5MHz
5
DIP-8
006
OPA704PA
OPA2704EA
Dual, GBW = 5MHz
5
"
MSOP-8
337
"
B04
"
OPA2703EA/250
OPA2703EA/2K5
OPA2704UA
OPA2704UA/2K5
OPA2704PA
Tape and Reel
Tape and Reel
Rails
Tape and Reel
Rails
"
"
"
OPA2704UA
"
Dual, GBW = 5MHz
"
5
"
SO-8
"
182
"
OPA2704UA
"
OPA2704PA
Dual, GBW = 5MHz
5
DIP-8
006
OPA2704PA
OPA4704EA
Quad, GBW = 5MHz
5
"
5
"
TSSOP-14
357
"
235
"
OPA4704EA
OPA4704EA/250
OPA4704EA/2K5
OPA4704UA
Tape and Reel
Tape and Reel
Rails
"
"
"
SO-14
"
"
OPA4704UA
Quad, GBW = 5MHz
OPA4704UA
"
"
"
OPA4704UA/2K5
Tape and Reel
NOTE: (1) Models with a slash (/) are available only in Tape and Reel in the quantities indicated (e.g., /3K indicates 3000 devices per reel). Ordering 3000 pieces
of “OPA703NA/3K” will get a single 3000-piece Tape and Reel.
OPA703, OPA704
2
SBOS180A
OPA703 ELECTRICAL CHARACTERISTICS: VS = 4V to 12V
Boldface limits apply over the specified temperature range, TA = –40°C to +85°C
At TA = +25°C, RL = 20kΩ connected to VS / 2 and VOUT = VS / 2, unless otherwise noted.
OPA703NA, UA, PA
OPA2703EA, UA, PA
OPA4703EA, UA
PARAMETER
CONDITION
MIN
TYP
MAX
UNITS
OFFSET VOLTAGE
Input Offset Voltage
Drift
vs Power Supply
Over Temperature
Channel Separation, dc
VOS
dVOS /dT
PSRR
VS = ±5V, VCM = 0V
TA = –40°C to +85°C
VS = ±2V to ±6V, VCM = 0V
VS = ±2V to ±6V, VCM = 0V
RL = 20kΩ
±160
±4
20
±750
µV
µV/°C
µV/V
µV/V
µV/V
dB
100
200
1
98
f = 1kHz
INPUT VOLTAGE RANGE
Common-Mode Voltage Range
Common-Mode Rejection Ratio
over Temperature
VCM
CMRR
(V–) – 0.3
(V+) + 0.3
V
VS = ±5V, (V–) – 0.3V < VCM < (V+) + 0.3V
70
68
80
74
90
96
dB
dB
dB
dB
VS
VS = ±5V, (V–) – 0.3V < VCM < (V+) – 2V
VS 5V, (V–) < VCM < (V+) – 2V
= ±5V, (V–) < VCM < (V+)
over Temperature
= ±
INPUT BIAS CURRENT
Input Bias Current
Input Offset Current
IB
IOS
VS = ±5V, VCM = 0V
VS = ±5V, VCM = 0V
±1
±0.5
±10
±10
pA
pA
INPUT IMPEDANCE
Differential
Common-Mode
4 • 109 || 4
5 • 1012 || 4
Ω || pF
Ω || pF
NOISE
Input Voltage Noise, f = 0.1Hz to 10Hz
Input Voltage Noise Density, f = 1kHz
Current Noise Density, f = 1kHz
VS = ±5V, VCM = 0V
VS = ±5V, VCM = 0V
VS = ±5V, VCM = 0V
6
45
2.5
µVp-p
nV/√Hz
fA/√Hz
en
in
OPEN-LOOP GAIN
Open-Loop Voltage Gain
AOL RL = 100kΩ, (V–)+0.1V < VO < (V+)–0.1V
RL = 20kΩ, (V–)+0.075V < VO < (V+)–0.075V
120
110
dB
dB
dB
dB
dB
100
96
100
96
over Temperature
over Temperature
RL =20k
L = 5kΩ, (V–)+0.15V < VO < (V+)–0.15V
L = 5kΩ, (V–)+0.15V < VO < (V+)–0.15V
Ω, (V–)+0.075V < VO < (V+)–0.075V
R
R
110
OUTPUT
Voltage Output Swing from Rail
R
R
R
L = 100kΩ, AOL > 80dB
L = 20kΩ, AOL > 100dB
L = 20kΩ, AOL > 96dB
40
mV
mV
mV
mV
mV
mA
mA
75
75
150
150
over Temperature
RL = 5kΩ, AOL > 100dB
R
over Temperature
Output Current
Short-Circuit Current
Capacitive Load Drive
L = 5kΩ, AOL > 96dB
|VS – VOUT| < 1V
IOUT
ISC
CLOAD
±10
±40
See Typical Performance Curves
FREQUENCY RESPONSE
Gain-Bandwidth Product
Slew Rate
Settling Time, 0.1%
0.01%
CL = 100pF
G = +1
VS = ±5V, G = +1
GBW
SR
tS
1
0.6
15
20
3
MHz
V/µs
µs
µs
µs
VS = ±5V, 5V Step, G = +1
VS = ±5V, 5V Step, G = +1
VIN • Gain = VS
Overload Recovery Time
Total Harmonic Distortion + Noise
THD+N VS = ±5V, VO = 3Vp-p, G = +1, f = 1kHz
0.02
%
POWER SUPPLY
Specified Voltage Range, Single Supply
Specified Voltage Range, Dual Supplies
Operating Voltage Range
Quiescent Current (per amplifier)
over Temperature
VS
VS
4
±2
12
±6
V
V
V
µA
µA
3.6 to 12
160
IQ
IO = 0
200
300
TEMPERATURE RANGE
Specified Range
Operating Range
–40
–55
–65
85
125
150
°C
°C
°C
Storage Range
Thermal Resistance
SOT23-5 Surface-Mount
MSOP-8 Surface-Mount
TSSOP-14 Surface-Mount
SO-8 Surface Mount
SO-14 Surface Mount
DIP-8
θJA
200
150
100
150
100
100
°C/W
°C/W
°C/W
°C/W
°C/W
°C/W
OPA703, OPA704
3
SBOS180A
OPA704 ELECTRICAL CHARACTERISTICS: VS = 4V to 12V
Boldface limits apply over the specified temperature range, TA = –40°C to +85°C
At TA = +25°C, RL = 20kΩ connected to VS / 2 and VOUT = VS / 2, unless otherwise noted.
OPA704NA, UA, PA
OPA2704EA, UA, PA
OPA4704EA, UA
PARAMETER
CONDITION
MIN
TYP
MAX
UNITS
OFFSET VOLTAGE
Input Offset Voltage
Drift
vs Power Supply
Over Temperature
Channel Separation, dc
VOS
dVOS/dT
PSRR
VS = ±5V, VCM = 0V
TA = –40°C to +85°C
VS = ±2V to ±6V, VCM = 0V
VS = ±2V to ±6V, VCM = 0V
RL = 20kΩ
±160
±4
20
±750
µV
µV/°C
µV/V
µV/V
µV/V
dB
100
200
1
98
f = 1kHz
INPUT VOLTAGE RANGE
Common-Mode Voltage Range
Common-Mode Rejection Ratio
over Temperature
VCM
CMRR
(V–) – 0.3
(V+) + 0.3
V
VS = ±5V, (V–) – 0.3V < VCM < (V+) + 0.3V
70
68
80
74
90
96
dB
dB
dB
dB
VS
VS = ±5V, (V–) – 0.3V < VCM < (V+) – 2V
VS 5V, (V–) < VCM < (V+) – 2V
= ±5V, (V–) < VCM < (V+)
over Temperature
= ±
INPUT BIAS CURRENT
Input Bias Current
Input Offset Current
IB
IOS
VS = ±5V, VCM = 0V
VS = ±5V, VCM = 0V
±1
±0.5
±10
±10
pA
pA
INPUT IMPEDANCE
Differential
Common-Mode
4 • 109 || 4
5 • 1012 || 4
Ω || pF
Ω || pF
NOISE
Input Voltage Noise, f = 0.1Hz to 10Hz
Input Voltage Noise Density, f = 1kHz
Current Noise Density, f = 1kHz
VS = ±5V, VCM = 0V
VS = ±5V, VCM = 0V
VS = ±5V, VCM = 0V
6
45
2.5
µVp-p
nV/√Hz
fA/√Hz
en
in
OPEN-LOOP GAIN
Open-Loop Voltage Gain
AOL RL = 100kΩ, (V–)+0.1V < VO < (V+)–0.1V
RL = 20kΩ, (V–)+0.075V < VO < (V+)–0.075V
RL =20kΩ, (V–)+0.075V < VO < (V+)–0.075V
RL = 5kΩ, (V–)+0.15V < VO < (V+)–0.15V
120
110
dB
dB
dB
dB
dB
100
96
100
96
over Temperature
over Temperature
110
RL = 5kΩ, (V–)+0.15V < VO < (V+)–0.15V
OUTPUT
Voltage Output Swing from Rail
RL = 100kΩ, AOL > 80dB
RL = 20kΩ, AOL > 100dB
40
mV
mV
mV
mV
mV
mA
mA
75
75
150
150
over Temperature
RL = 20kΩ, AOL > 96dB
RL = 5kΩ, AOL > 100dB
over Temperature
Output Current
Short-Circuit Current
Capacitive Load Drive
RL = 5kΩ, AOL > 96dB
IOUT
ISC
CLOAD
|VS – VOUT| < 1V
±10
±40
See Typical Performance Curves
FREQUENCY RESPONSE
Gain-Bandwidth Product
Slew Rate
Settling Time, 0.1%
0.01%
CL = 100pF
G = +5
VS = ±5V, G = +5
GBW
SR
tS
3
3
18
21
0.6
0.025
MHz
V/µs
µs
µs
µs
VS = ±5V, 5V Step, G = +5
VS = ±5V, 5V Step, G = +5
VIN • Gain = VS
Overload Recovery Time
Total Harmonic Distortion + Noise
THD+N VS = ±5V, VO = 3Vp-p, G = +5, f = 1kHz
%
POWER SUPPLY
Specified Voltage Range, Single Supply
Specified Voltage Range, Dual Supplies
Operating Voltage Range
Quiescent Current (per amplifier)
over Temperature
VS
VS
4
±2
12
±6
V
V
V
µA
µA
3.6 to 12
160
IQ
IO = 0
200
300
TEMPERATURE RANGE
Specified Range
Operating Range
–40
–55
–65
85
125
150
°C
°C
°C
Storage Range
Thermal Resistance
SOT23-5 Surface-Mount
MSOP-8 Surface-Mount
TSSOP-14 Surface-Mount
SO-8 Surface Mount
SO-14 Surface Mount
DIP-8
θJA
200
150
100
150
100
100
°C/W
°C/W
°C/W
°C/W
°C/W
°C/W
OPA703, OPA704
4
SBOS180A
TYPICAL CHARACTERISTICS
At TA = +25°C, VS = ±5V, and RL = 20kΩ, unless otherwise noted.
OPA704 GAIN AND PHASE vs FREQUENCY
OPA703 GAIN AND PHASE vs FREQUENCY
120
100
80
120
100
80
120
120
100
80
100
80
60
60
60
60
40
40
40
40
20
20
20
20
0
0
0
0
–20
–40
–60
–20
–40
–60
–20
–40
–20
–40
10
100
1k
10k
100k
1M
10M
10
100
1k
10k
100k
1M
10M
Frequency (Hz)
Frequency (Hz)
CMRR vs FREQUENCY
CMRR Limited Range
PSRR vs FREQUENCY
120
100
80
60
40
20
0
140
120
100
80
CMRR Full Scale
60
40
20
0
1
10
100
1k
10k
100k
1M
1
10
100
1k
10k
100k
1M
Frequency (Hz)
Frequency (Hz)
MAXIMUM AMPLITUDE vs FREQUENCY
(V+) – (V–) = 12V
CHANNEL SEPARATION vs FREQUENCY
7
160
140
120
100
80
6
5
4
3
2
1
0
OPA704
60
40
OPA703
20
0
100
1k
10k
100k
1M
10M
10
100
1k
10k
100k
1M
Frequency (Hz)
Frequency (Hz)
OPA703, OPA704
5
SBOS180A
TYPICAL CHARACTERISTICS (Cont.)
At TA = +25°C, VS = ±5V, and RL = 20kΩ, unless otherwise noted.
INPUT CURRENT AND VOLTAGE
SPECTRAL NOISE vs FREQUENCY
COMMON-MODE REJECTION RATIO
vs TEMPERATURE
10000
1000
100
10
10000
1000
100
10
120
110
100
90
Current
Noise
Voltage
Noise
Limited Scale
80
Full Scale
1
1
70
0.1
0.1
60
0.1
1
10
100
1k
10k
100k
1M
–80 –60 –40 –20
0
20 40 60 80 100 120 140
Frequency (Hz)
Temperature (°C)
INPUT BIAS (IB) AND OFFSET (IOS
)
OPEN-LOOP GAIN vs TEMPERATURE
CURRENT vs TEMPERATURE
140
130
120
110
100
90
100000
10000
1000
100
10
IB
IOS
1
0.1
0.0
–100 –75 –50 –25
0
25 50 75 100 125 150 175
–50 –25
0
25
50
75
100 125 150 175
Temperature (°C)
Temperature (°C)
PSRR vs TEMPERATURE
QUIESCENT CURRENT vs TEMPERATURE
250
200
150
100
50
120
110
100
90
80
70
0
60
–100 –75 –50 –25
0
25 50 75 100 125 150 175
–75 –50 –25
0
10 25 50 75 100 110 130 150
Temperature (°C)
Temperature (°C)
OPA703, OPA704
6
SBOS180A
TYPICAL CHARACTERISTICS (Cont.)
At TA = +25°C, VS = ±5V, and RL = 20kΩ, unless otherwise noted.
INPUT BIAS CURRENT (IB)
vs COMMON-MODE VOLTAGE (VCM
TEMPERATURE = °25C
)
TOTAL HARMONIC DISTORTION PLUS NOISE
(Load = 5kΩ, BW = 8kHz, 1.0Vrms)
1.000
15
10
5
G = +5
0.100
OPA704
0
0.010
–5
–10
–15
OPA703
G = +1
0.001
1
10
100
1k
10k
100k
–6 –5 –4 –3 –2 –1
0
1
2
3
4
5
6
Frequency (Hz)
Common-Mode Voltage, VCM (V)
INPUT BIAS CURRENT (IB)
vs COMMON-MODE VOLTAGE (VCM
)
TEMPERATURE = 125°C
QUIESCENT CURRENT vs SUPPLY VOLTAGE
200
190
180
170
160
150
140
130
120
15
10
5
0
–5
–10
–15
2
4
6
8
10
12
14
–6 –5 –4 –3 –2 –1
0
1
2
3
4
5
6
Supply Voltage (V)
Common-Mode Voltage, VCM (V)
SHORT-CIRCUIT CURRENT
vs SUPPLY VOLTAGE
OUTPUT VOLTAGE SWING vs OUTPUT CURRENT
6
4
60
50
40
30
20
10
0
ISC N (Sinking)
+125°C
+25°C
–55°C
Sourcing
2
0
ISC P (Sourcing)
–2
–4
–6
Sinking
–55°C
+25°C
+125°C
0
10
20
30
40
50
60
70
2
4
6
8
10
12
14
Output Current (±mA)
Supply Voltage (V)
OPA703, OPA704
7
SBOS180A
TYPICAL CHARACTERISTICS (Cont.)
At TA = +25°C, VS = ±5V, and RL = 20kΩ, unless otherwise noted.
OPA704 SMALL-SIGNAL OVERSHOOT (%)
OPA703 SMALL-SIGNAL OVERSHOOT (%)
vs CAPACITIVE LOAD
vs CAPACITIVE LOAD AND GAIN
90
90
80
70
60
50
40
30
20
10
0
G = +1
80
70
60
50
G = –1
G = +5
40
30
20
G = +5
10
0
10
100
1k
10k
10
100
1k
10k
Load Capacitance Value (pF)
Capacitance Load (pF)
OPA703 SETTLING TIME vs GAIN
OPA704 SETTLING TIME vs GAIN
100
90
80
70
60
50
40
30
20
10
50
45
40
35
30
25
20
15
10
0.01%
0.01%
0.10%
0.1%
1
10
100
1
10
100
Non-Inverting Gain (V/V)
Non-Inverting Gain (V/V)
VOS PRODUCTION DISTRIBUTION
VOS DRIFT PRODUCTION DISTRIBUTION
25
20
15
10
5
25
20
15
10
5
0
0
Voltage Offset (µV/°C)
Voltage Offset (µV)
OPA703, OPA704
8
SBOS180A
TYPICAL CHARACTERISTICS (Cont.)
At TA = +25°C, VS = ±5V, and RL = 20kΩ, unless otherwise noted.
OPA704 SMALL SIGNAL STEP RESPONSE
(G = +5V/V, CF = 3pF, RF = 100kΩ,
OPA703 SMALL SIGNAL STEP RESPONSE
(G = +1V/V, RL = 20kΩ, CL = 100pF)
CL = 100pF, RL = 20kΩ,)
5µs/div
5µs/div
OPA703 LARGE SIGNAL STEP RESPONSE
(G = +1V/V, RL = 20kΩ, CL = 100pF)
OPA704 LARGE SIGNAL STEP RESPONSE
(G = +5V/V, RL = 20kΩ, CF = 3pF, CL = 100pF)
10µs/div
2µs/div
OPA703, OPA704
9
SBOS180A
Power-supply pins should be bypassed with 1000pF ceramic
capacitors in parallel with 1µF tantalum capacitors.
APPLICATIONS INFORMATION
OPA703 and OPA704 series op amps can operate on 160µA
quiescent current from a single (or split) supply in the range
of 4V to 12V (±2V to ±6V), making them highly versatile
and easy to use. The OPA703 is unity-gain stable and offers
1MHz bandwidth and 0.6V/µs slew rate. The OPA704 is
optimized for gains of 5 or greater with a 3MHz bandwidth
and 3V/µs slew rate.
OPERATING VOLTAGE
OPA703 and OPA704 series op amps are fully specified and
guaranteed from +4V to +12V over a temperature range of
–40ºC to +85ºC. Parameters that vary significantly with
operating voltages or temperature are shown in the Typical
Performance Curves.
Rail-to-rail input and output swing helps maintain dynamic
range, especially in low supply applications. Figure 1 shows
the input and output waveforms for the OPA703 in unity-
gain configuration. Operation is from a ±5V supply with a
100kΩ load connected to VS/2. The input is a 10Vp-p
sinusoid. Output voltage is approximately 10Vp-p.
RAIL-TO-RAIL INPUT
The input common-mode voltage range of the OPA703 series
extends 300mV beyond the supply rails at room temperature.
This is achieved with a complementary input stage—an N-
channel input differential pair in parallel with a P-channel
differential pair, as shown in Figure 2. The N-channel pair is
active for input voltages close to the positive rail, typically
(V+) – 2.0V to 300mV above the positive supply, while the P-
channel pair is on for inputs from 300mV below the negative
supply to approximately (V+) – 1.5V. There is a small
transition region, typically (V+) – 2.0V to (V+) – 1.5V, in
which both pairs are on. This 500mV transition region can
vary ±100mV with process variation. Thus, the transition
region (both stages on) can range from (V+) – 2.1V to (V+)
– 1.4V on the low end, up to (V+) – 1.9V to (V+) – 1.6V on
the high end. Within the 500mV transition region PSRR,
CMRR, offset voltage, and offset drift, and THD may vary
compared to operation outside this region.
G = +1, VS = ±5V
Input
Output (inverted on scope)
200µs/div
FIGURE 1. Rail-to-Rail Input and Output.
V+
VO
VIN+
VIN–
V–
FIGURE 2. Simplified Schematic.
OPA703, OPA704
10
SBOS180A
INPUT VOLTAGE
CAPACITIVE LOAD AND STABILITY
The OPA703 and OPA704 series op amps can drive up to
1000pF pure capacitive load. Increasing the gain enhances
the amplifier’s ability to drive greater capacitive loads (see
the typical performance curve “Small Signal Overshoot vs
Capacitive Load”).
Device inputs are protected by ESD diodes that will conduct
if the input voltages exceed the power supplies by more than
approximately 300mV. Momentary voltages greater than
300mV beyond the power supply can be tolerated if the
current is limited to 10mA. This is easily accomplished with
an input resistor, as shown in Figure 3. Many input signals
are inherently current-limited to less than 10mA; therefore,
a limiting resistor is not always required. The OPA703
features no phase inversion when the inputs extend beyond
supplies if the input current is limited, as seen in Figure 4.
One method of improving capacitive load drive in the unity-
gain configuration is to insert a 10Ω to 20Ω resistor inside
the feedback loop, as shown in Figure 5. This reduces
ringing with large capacitive loads while maintaining DC
accuracy.
+V
RS
20Ω
IOVERLOAD
OPA703
VOUT
10mA max
VIN
VOUT
OPA703
CL
RL
VIN
R
V–
FIGURE 3. Input Current Protection for Voltages Exceeding
the Supply Voltage.
FIGURE 5. Series Resistor in Unity-Gain Buffer Configura-
tion Improves Capacitive Load Drive.
APPLICATION CIRCUITS
VS = ±5.0V, VIN = 11Vp-p
Figure 6 shows a G = 5 non-inverting amplifier implemented
with the OPA703 and OPA704 op amps. It demonstrates the
increased speed characteristics (bandwidth, slew rate and
settling time) that can be achieved with the OPA704 family
when used in gains of five or greater. Some optimization of
feedback capacitor value may be required to achieve best
dynamic response. Circuits with closed-loop gains of less
than five should use the OPA703 family for good stability
and capacitive load drive. The OPA703 can be used in gains
greater than five, but will not provide the increased speed
benefits of the OPA704 family.
20µs/div
The OPA703 series op amps are optimized for driving
medium-speed sampling data converters. The OPA703 op
amps buffer the converter’s input capacitance and resulting
charge injection while providing signal gain.
FIGURE 4. OPA703—No Phase Inversion with Inputs
Greater than the Power-Supply Voltage.
Figure 7 shows the OPA2703 in a dual-supply buffered
reference configuration for the DAC7644. The DAC7644 is
a 16-bit, low-power, quad-voltage output converter. Small
size makes the combination ideal for automatic test equip-
ment, data acquisition systems, and other low-power space-
limited applications.
RAIL-TO-RAIL OUTPUT
A class AB output stage with common-source transistors is
used to achieve rail-to-rail output. This output stage is
capable of driving 1kΩ loads connected to any point be-
tween V+ and ground. For light resistive loads (> 100kΩ),
the output voltage can swing to 40mV from the supply rail.
With moderate resistive loads (20kΩ), the output can swing
to within 75mV from the supply rails while maintaining high
open-loop gain (see the typical performance curve “Output
Voltage Swing vs Output Current”).
OPA703, OPA704
11
SBOS180A
3pF
5kΩ
20kΩ
5kΩ
20kΩ
OPA703
OPA704
G = 5
G = 5
VIN
VIN
LARGE-SIGNAL RESPONSE
Demonstrates speed improvement that
can be achieved with OPA704 family
in applications with G ≥ 5.
OPA703
OPA704
5µs/div
FIGURE 6. OPA704 Provides higher Speed in G ≥ 5.
NC 48
NC 47
DAC7644
NC 46
NC 45
+V
V
OUTA Sense 44
OUTA 43
REFL AB Sense 42
REFL AB 41
REFH AB 40
REFH AB Sense 39
OUTB Sense 38
OUTB 37
V–
VOUT
V
V
–2.5V
Negative
Reference
Ref
1/2
V
OPA2703
500pF
V
V+
Ref
V
1/2
OPA2703
500pF
V
Positive
Reference
+2.5V
V
VOUT
–V
FIGURE 7. OPA703 as Dual Supply Configuration-Buffered References for the DAC7644.
OPA703, OPA704
12
SBOS180A
PACKAGE OPTION ADDENDUM
www.ti.com
11-Nov-2003
PACKAGING INFORMATION
ORDERABLE DEVICE
STATUS(1)
PACKAGE TYPE
PACKAGE DRAWING
PINS
PACKAGE QTY
OPA2703EA/250
OPA2703EA/2K5
OPA2703PA
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
VSSOP
VSSOP
PDIP
DGK
DGK
P
8
8
250
2500
50
8
OPA2703UA
SOIC
SOIC
VSSOP
VSSOP
PDIP
D
8
100
2500
250
2500
50
OPA2703UA/2K5
OPA2704EA/250
OPA2704EA/2K5
OPA2704PA
D
8
DGK
DGK
P
8
8
8
OPA2704UA
SOIC
SOIC
TSSOP
TSSOP
SOIC
SOIC
TSSOP
TSSOP
SOIC
SOIC
SOP
D
8
100
2500
250
2500
58
OPA2704UA/2K5
OPA4703EA/250
OPA4703EA/2K5
OPA4703UA
D
8
PW
PW
D
14
14
14
14
14
14
14
14
5
OPA4703UA/2K5
OPA4704EA/250
OPA4704EA/2K5
OPA4704UA
D
2500
250
2500
58
PW
PW
D
OPA4704UA/2K5
OPA703NA/250
OPA703NA/3K
OPA703PA
D
2500
250
3000
50
DBV
DBV
P
SOP
5
PDIP
8
OPA703UA
SOIC
SOIC
SOP
D
8
100
2500
250
3000
50
OPA703UA/2K5
OPA704NA/250
OPA704NA/3K
OPA704PA
D
8
DBV
DBV
P
5
SOP
5
PDIP
8
OPA704UA
SOIC
SOIC
D
8
100
2500
OPA704UA/2K5
D
8
(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in
a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
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