OPA2301AIDGKRG4 [TI]
Low-Noise, High-Speed, 16-Bit Accurate, CMOS OPERATIONAL AMPLIFIER; 低噪声,高速, 16位精度, CMOS运算放大器型号: | OPA2301AIDGKRG4 |
厂家: | TEXAS INSTRUMENTS |
描述: | Low-Noise, High-Speed, 16-Bit Accurate, CMOS OPERATIONAL AMPLIFIER |
文件: | 总19页 (文件大小:497K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
OPA300, OPA2300
OPA301, OPA2301
SBOS271B − MAY 2003 − REVISED JUNE 2005
Low-Noise, High-Speed, 16-Bit Accurate, CMOS
OPERATIONAL AMPLIFIER
FD EATURES
DESCRIPTION
High Bandwidth: 150MHz
16-Bit Settling in 150ns
Low Noise: 3nV/√Hz
The OPA300 and OPA301 series high-speed,
voltage-feedback, CMOS operational amplifiers are
designed for 16-bit resolution systems. The
OPA300/OPA301 series are unity-gain stable and
feature excellent settling and harmonic distortion
specifications. Low power applications benefit from low
quiescent current. The OPA300 and OPA2300 feature
a digital shutdown (Enable) function to provide
additional power savings during idle periods. Optimized
for single-supply operation, the OPA300/OPA301
series offer superior output swing and excellent
common-mode range.
D
D
D
D
D
D
D
Low Distortion: 0.003%
Low Power: 9.5mA (typ) on 5.5V
Shutdown to 5µA
Unity-Gain Stable
Excellent Output Swing:
(V+) − 100mV to (V−) + 100mV
Single Supply: +2.7V to +5.5V
Tiny Packages: MSOP and SOT23
D
D
The OPA300 and OPA301 series op amps have
150MHz of unity-gain bandwidth, low 3nV/√Hz voltage
noise, and 0.1% settling within 30ns. Single-supply
operation from 2.7V ( 1.35V) to 5.5V ( 2.75V) and an
available shutdown function that reduces supply
current to 5µA are useful for portable low-power
applications. The OPA300 and OPA301 are available in
SO-8 and SOT-23 packages. The OPA2300 is available
in MSOP-10, and the OPA2301 is available in SO-8 and
MSOP-8. All versions are specified over the industrial
temperature range of −40°C to +125°C.
AD PPLICATIONS
16-Bit ADC Input Drivers
Low-Noise Preamplifiers
IF/RF Amplifiers
D
D
D
Active Filtering
130pF
(mica)
Ω
1820
fS = 1.25MSPS
f = 10kHz
5V
Ω
1820
VIN
Ω
10
ADS8401
OPA30x
130pF
(mica)
1.5nF
Typical Application
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.
All trademarks are the property of their respective owners.
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Copyright 2003−2005, Texas Instruments Incorporated
www.ti.com
ꢂꢀꢉꢠ ꢡꢡ ꢢ ꢂꢀꢉ ꢣꢠꢡ ꢡ
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SBOS271B − MAY 2003 − REVISED JUNE 2005
(1)
PACKAGE/ORDERING INFORMATION
PRODUCT
OPA300
OPA300
OPA301
OPA301
OPA2300
OPA2301
OPA2301
PACKAGE-LEAD
PACKAGE DESIGNATOR
PACKAGE MARKING
SO-8
D
300A
A52
SOT23-6
SO-8
DBV
D
301A
SOT23-5
MSOP−10
SO−8
DBV
DGS
D
AUP
C01
OPA2301A
C02
MSOP−8
DGK
(1)
For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI website
at www.ti.com.
ELECTROSTATIC DISCHARGE SENSITIVITY
ABSOLUTE MAXIMUM RATINGS
(1)
over operating free-air temperature range unless otherwise noted
This integrated circuit can be damaged by ESD. Texas
Instruments recommends that all integrated circuits be
handledwith appropriate precautions. Failure to observe
Power Supply V+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7V
(2)
Signal Input Terminals , Voltage . . . . . . . . . . . 0.5V to (V+) + 0.5V
Current . . . . . . . . . . . . . . . . . . . . . 10mA
proper handling and installation procedures can cause damage.
(3)
Open Short-Circuit Current
. . . . . . . . . . . . . . . . . . . . Continuous
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.
Operating Temperature Range . . . . . . . . . . . . . . . −55°C to +125°C
Storage Temperature Range . . . . . . . . . . . . . . . . . −60°C to +150°C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150°C
Lead Temperature (soldering, 10s) . . . . . . . . . . . . . . . . . . . . . +300°C
ESD Ratings
Human Body Model (HBM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4kV
Charged-Device Model (CDM) . . . . . . . . . . . . . . . . . . . . . . . . 500V
(1)
Stresses above these ratings may cause permanent damage.
Exposure to absolute maximum conditions for extended periods
may degrade device reliability. These are stress ratings only, and
functional operation of the device at these or any other conditions
beyond those specified is not implied.
(2)
(3)
Input terminals are diode clamped to the power-supply rails. Input
signals that can swing more than 0.5V beyond the supply rails
should be current limited to 10mA or less.
Short-circuit to ground; one amplifier per package.
PIN ASSIGNMENTS
Top View
OPA300
MSOP, SO, SOT
OPA2300
OPA300
NC(1)
1
2
3
4
8
7
6
5
Out
1
2
3
6
5
4
V+
Enable
V+
Out A
1
2
3
4
5
10 V+
−
−
In
+In
V
Enable
−
In A
9
8
7
6
Out B
A
VOUT
NC(1)
−
−
In B
+In
In
+In A
B
−
−
V
+In B
V
SOT23−6(2)
Enable A
Enable B
SO−8
MSOP−10
OPA301
OPA301
OPA2301
NC(1)
V+
NC(1)
1
2
3
4
8
7
6
5
Out
1
2
3
5
4
V+
Out A
−In A
+In A
1
8
7
6
5
V+
−
In
−
V
A
Out B
−In B
+In B
2
3
4
VOUT
NC(1)
+In
−
+In
In
B
−
V
SOT23−5
−
V
SO−8
SO−8, MSOP−8
NOTE: (1) Not connected. (2) SOT23-6 pin 1 oriented as shown with reference to package marking.
2
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SBOS271B − MAY 2003 − REVISED JUNE 2005
ELECTRICAL CHARACTERISTICS: V = 2.7V to 5.5V
S
Boldface limits apply over the temperature range, T = −40°C to +125°C.
A
All specifications at T = +25°C, R = 2kΩ connected to V /2, V
= V /2, and V
= V /2, unless otherwise noted.
A
L
S
OUT
S
CM S
OPA300, OPA301
OPA2300, OPA2301
PARAMETER
TEST CONDITIONS
= 5V
MIN
TYP
MAX
UNITS
OFFSET VOLTAGE
Input Offset Voltage
Over Temperature
Drift
V
V
1
5
mV
mV
OS
S
7
dV /dT
OS
PSRR
2.5
50
µV/°C
µV/V
dB
vs. Power Supply
V
= 2.7V to 5.5V, V
CM
< (V+) –0.9V
200
S
Channel Separation, dc
f = 5MHz
140
100
dB
INPUT VOLTAGE RANGE
Common-Mode Voltage Range
Common-Mode Rejection Ratio
INPUT BIAS CURRENT
Input Bias Current
V
(V−) − 0.2
(V+) − 0.9
V
CM
CMRR
(V−) − 0.2V < V
CM
< (V+) – 0.9V
66
80
dB
I
0.1
0.5
5
5
pA
pA
B
Input Offset Current
I
OS
INPUT IMPEDANCE
13
Differential
10 || 3
Ω || pF
Ω || pF
13
Common-Mode
10 || 6
NOISE
Input Voltage Noise, f = 0.1Hz to 1MHz
Input Voltage Noise Density, f > 1MHz
Input Current Noise Density, f < 1kHz
Differential Gain Error
Differential Phase Error
40
3
µV
nV/√Hz
fA/√Hz
%
PP
e
i
n
n
1.5
0.01
0.1
NTSC, R = 150Ω
L
NTSC, R = 150Ω
°
L
OPEN-LOOP GAIN
Open−Loop Voltage Gain
Over Temperature
A
V
= 5V, R = 2kΩ, 0.1V < V < 4.9V
95
90
95
90
106
106
dB
dB
dB
dB
OL
S
L
O
V
= 5V, R = 2kΩ, 0.1V < V < 4.9V
S
L O
V
= 5V, R = 100Ω, 0.5V < V < 4.5V
L O
S
Over Temperature
OUTPUT
V
= 5V, R = 100Ω, 0.5V < V < 4.5V
S
L
O
Voltage Output Swing from Rail
R
= 2kΩ, A
OL
> 95dB
> 95dB
75
300
70
100
500
mV
mV
mA
L
R
= 100Ω, A
L
OL
Short-Circuit Current
Capacitive Load Drive
FREQUENCY RESPONSE
Gain-Bandwidth Product
Slew Rate
I
SC
C
See Typical Characteristics
LOAD
GBW
SR
150
80
MHz
V/µs
ns
G = +1
Settling Time, 0.01%
0.1%
t
V
= 5V, 2V Step, G = +1
90
S
S
30
ns
Overload Recovery Time
Total Harmonic Distortion + Noise
POWER SUPPLY
Gain = −1
30
ns
THD+N
V
= 5V, V = 3V , G = +1, f = 1kHz
PP
0.003
%
S
O
Specified Voltage Range
Operating Voltage Range
Quiescent Current (per amplifier)
Over Temperature
V
2.7
5.5
V
V
S
2.7 to 5.5
9.5
I
I
= 0
12
mA
mA
Q
O
13
SHUTDOWN
t
t
40
5
ns
µs
V
OFF
ON
V
(shutdown)
(V−) − 0.2
(V−) + 2.5
(V−) + 0.8
(V+) + 0.2
10
L
V
(amplifier is active)
V
H
I
(per amplifier)
3
µA
QSD
TEMPERATURE RANGE
Specified Range
−40
−55
−60
+125
+125
+150
°C
°C
°C
Operating Range
Storage Range
Thermal Resistance
SO-8, MSOP−8, MSOP-10
SOT23-5, SOT23-6
θ
JA
°C/W
°C/W
°C/W
150
200
3
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SBOS271B − MAY 2003 − REVISED JUNE 2005
TYPICAL CHARACTERISTICS
All specifications at T = 25°C, V = 5V, and R = 150Ω connected to V /2 unless otherwise noted.
A
S
L
S
INVERTING GAIN
SMALL−SIGNAL FREQUENCY RESPONSE
NONINVERTING GAIN
SMALL−SIGNAL FREQUENCY RESPONSE
3
0
3
6
9
3
3
9
VO = 0.1VPP
G = 1
Ω
RF = 310 for G > 1
−
G =
1
−
−
−
−
−
−
G =
2
G = 5
G = 2
−
G =
5
−
G = 10
G = 10
−
−
12
15
VO = 0.1VPP
Ω
RF = 310 for G > 1
−
15
1M
10M
100M
Frequency (Hz)
1G
1M
10M
100M
Frequency (Hz)
1G
SMALL−SIGNAL STEP RESPONSE
LARGE−SIGNAL STEP RESPONSE
VOUT
Time (50ns/div)
Time (5ns/div)
0.1dB GAIN FLATNESS FOR VARIOUS RF
Gain = 2
VO = 0.1VPP
LARGE−SIGNAL ENABLE/DISABLE RESPONSE
Enable Pin
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
Ω
RF = 825
Ω
RF = 450
Amplifier
Output
−
−
−
0.1
0.2
0.3
Ω
RF = 205
1
10
Frequency (MHz)
100
µ
Time (100 s/div)
4
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SBOS271B − MAY 2003 − REVISED JUNE 2005
TYPICAL CHARACTERISTICS (continued)
All specifications at T = 25°C, V = 5V, and R = 150Ω connected to V /2 unless otherwise noted.
A
S
L
S
HARMONIC DISTORTION vs OUTPUT VOLTAGE
HARMONIC DISTORTION vs NONINVERTING GAIN
VO = 2VPP
−
−
−
−
−
50
60
70
80
90
−
−
−
−
−
50
60
70
80
90
Ω
RL = 200
f = 1MHz
Ω
RL = 200
Ω
R
F = 310
f = 1MHz
THD
G = 2
Ω
RF = 310
THD
2nd−Harmonic
2nd−Harmonic
3rd−Harmonic
3rd−Harmonic
−
−
100
110
−
100
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
10
1k
1
10
Gain (V/V)
Output Voltage (VPP
)
HARMONIC DISTORTION vs FREQUENCY
VO = 2VPP
HARMONIC DISTORTION vs INVERTING GAIN
VO = 2VPP
−
−
−
−
−
50
60
70
80
90
−
50
60
70
80
90
Ω
RL = 200
Ω
RL = 200
Gain = 2
RF = 310
−
f = 1MHz
THD
Ω
RF = 310
Ω
−
−
−
THD
2nd−Harmonic
3rd−Harmonic
2nd−Harmonic
3rd−Harmonic
−
100
110
120
−
−
100
110
−
−
100k
1M
Frequency (Hz)
10M
1
Gain (V/V)
INPUT VOLTAGE AND CURRENT NOISE
SPECTRAL DENSITY vs FREQUENCY
HARMONIC DISTORTION vs LOAD RESISTANCE
VO = 2VPP
−
−
−
−
−
−
−
−
60
65
70
75
80
85
90
95
10k
f = 1MHz
Gain = 2
Ω
RF = 310
THD
Current Noise
1k
100
10
1
2nd−Harmonic
Voltage Noise
3rd−Harmonic
−
100
100
10
100
1k
10k
100k
1M
10M
Load Resistance ( )
Ω
Frequency (Hz)
5
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SBOS271B − MAY 2003 − REVISED JUNE 2005
TYPICAL CHARACTERISTICS (continued)
All specifications at T = 25°C, V = 5V, and R = 150Ω connected to V /2 unless otherwise noted.
A
S
L
S
FREQUENCY RESPONSE FOR VARIOUS RL
Gain = 1
FREQUENCY RESPONSE vs CAPACITIVE LOAD
3
9
3
3
9
Ω
CLOAD = 1pF, RS = 75
Ω
RLOAD = 1k
VO = 0.1VPP
−
3
9
CLOAD = 5pF
Ω
RS = 55
−
−
−
CLOAD = 10pF
Ω
RLOAD = 150
Ω
RS = 40
−
−
−
15
21
27
Ω
RLOAD = 50
CLOAD = 47pF
RS
Ω
RS = 30
−
−
15
CL
CLOAD = 100pF
Ω
RS = 20
21
10M
100M
500
10M
100M
Frequency (Hz)
500
Frequency (Hz)
COMMON−MODE REJECTION RATIO AND
POWER−SUPPLY REJECTION RATIO vs FREQUENCY
OPEN−LOOP GAIN AND PHASE vs FREQUENCY
100
90
80
70
60
50
40
30
20
10
0
110
0
PSRR V+
100
90
80
70
60
50
40
30
20
10
0
−
PSRR V
CMRR
−30
Gain
Phase
−60
−90
−120
−150
−180
−10
100
1k
10k
100k
1M
10M 100M
1G
10k
100k
1M
10M
100M
1G
Frequency (Hz)
Frequency (Hz)
COMPOSITE VIDEO
OUTPUT VOLTAGE SWING vs OUTPUT CURRENT
VS = 5V
DIFFERENTIAL GAIN AND PHASE
1.0
5.0
4.0
3.0
2.0
1.0
0
_
25 C
0.8
0.6
0.4
0.2
0
−
_
40 C
−
_
55 C
_
85 C
_
125 C
dP
_
25 C
dG
1
2
3
4
0
10
20
30
40
50
60
70
80
Ω
Number of 150 Loads
Output Current (mA)
6
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SBOS271B − MAY 2003 − REVISED JUNE 2005
TYPICAL CHARACTERISTICS (continued)
All specifications at T = 25°C, V = 5V, and R = 150Ω connected to V /2 unless otherwise noted.
A
S
L
S
INPUT BIAS CURRENT vs TEMPERATURE
OUTPUT VOLTAGE SWING vs OUTPUT CURRENT
VS = 2.7V
1
2.7
2.4
2.1
1.8
1.5
1.2
0.9
0.6
0.3
0
−
_
−
_
_
55 C
_
25 C 40 C
_
85 C
125 C
0.1
0.01
−
−
20
40
0
20
40
60
80
100 120 140
0
10
20
30
40
50
60
70
80
_
Temperature ( C)
Output Current (mA)
QUIESCENT CURRENT vs TEMPERATURE
INPUT BIAS CURRENT vs COMMON−MODE VOLTAGE
12
11
10
9
2
1
0
1
2
VS
=
2.5V
8
−
−
7
6
−
−
−
−
−
1
40
20
0
20
40
60
80
100 120 140
3
2
0
1
2
_
Temperature ( C)
Common−Mode Voltage (V)
POWER−SUPPLY REJECTION RATIO AND
SHORT−CIRCUIT CURRENT vs TEMPERATURE
VS = 5.5V
COMMON−MODE REJECTION RATIO vs TEMPERATURE
80
60
40
20
0
100
95
90
85
80
75
70
65
60
PSRR
CMRR
VS = 5V
VS = 3.5V
VS = 2.7V
−
−
−
−
20
40
60
80
VS = 5.5V
−
−
20
40
0
20
40
60
80
100 120 140
−
−
20
40
0
20
40
60
80 100 120 140
_
Temperature ( C)
_
Temperature ( C)
7
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SBOS271B − MAY 2003 − REVISED JUNE 2005
TYPICAL CHARACTERISTICS (continued)
All specifications at T = 25°C, V = 5V, and R = 150Ω connected to V /2 unless otherwise noted.
A
S
L
S
OUTPUT IMPEDANCE vs FREQUENCY
QUIESCENT CURRENT vs SUPPLY VOLTAGE
1000
100
10
12
11
10
9
G = 2
G = 1
8
1
7
0.1
0.01
6
5
10k
100k
1M
Frequency (Hz)
10M
100M
2.5
3
3.5
4
4.5
5
5.5
Supply Voltage (V)
MAXIMUM OUTPUT VOLTAGE vs FREQUENCY
OPEN−LOOP GAIN vs TEMPERATURE
5
4
3
2
1
0
120
110
100
90
Ω
RLOAD = 2k
VS = 5V
Ω
RLOAD = 2k
VS = 2.7V
Ω
RLOAD = 100
80
1
10
100
−
−
20
40
0
20
40
60
80
100 120 140
Frequency (MHz)
_
Temperature ( C)
OFFSET VOLTAGE
PRODUCTION DISTRIBUTION
OUTPUT SETTLING TIME TO 0.1%
20
18
16
14
12
10
8
0.2
0.1
0
−
−
−
−
−
−
−
−
−
−
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
6
4
2
0
−
−
−
−
−
1
5
4
3
2
0
1
2
3
4
5
0
20
40
60
Time (ns)
80
100
Offset Voltage (mV)
8
ꢂ ꢀꢉꢠ ꢡ ꢡ ꢢ ꢂ ꢀꢉ ꢣꢠꢡ ꢡ
ꢂ ꢀꢉꢠ ꢡ ꢤꢢ ꢂ ꢀꢉ ꢣꢠꢡ ꢤ
www.ti.com
SBOS271B − MAY 2003 − REVISED JUNE 2005
TYPICAL CHARACTERISTICS (continued)
All specifications at T = 25°C, V = 5V, and R = 150Ω connected to V /2 unless otherwise noted.
A
S
L
S
OFFSET VOLTAGE DRIFT
PRODUCTION DISTRIBUTION
20
15
10
5
0
−10 −8 −6 −4 −2
0
2
4
6
8
10
µ
_
Offset Voltage Drift ( V/ C)
9
ꢂꢀꢉꢠ ꢡꢡ ꢢ ꢂꢀꢉ ꢣꢠꢡ ꢡ
ꢂꢀꢉ ꢠꢡ ꢤ ꢢ ꢂꢀꢉ ꢣꢠꢡ ꢤ
www.ti.com
SBOS271B − MAY 2003 − REVISED JUNE 2005
PCB LAYOUT
APPLICATIONS INFORMATION
As with most high-speed operational amplifiers, board
layout requires special attention to maximize AC and
DC performance. Extensive use of ground planes, short
lead lengths, and high-quality bypass capacitors will
minimize leakage that can compromise signal quality.
Guard rings applied with potential as near to the input
pins as possible help minimize board leakage.
The OPA300 and OPA301 series of single-supply
CMOS op amps are designed to interface with
high-speed 16-bit analog-to-digital converters (ADCs).
Featuring wide 150MHz bandwidth, fast 150ns settling
time to 16 bits, and high open loop gain, this series
offers excellent performance in a small SO-8 and tiny
SOT23 packages.
INPUT AND ESD PROTECTION
THEORY OF OPERATION
All OPA300/OPA301 series op amps’ pins are static-
protected with internal ESD protection diodes tied to the
supplies, as shown in Figure 2. These diodes will
provide overdrive protection if the current is externally
limited to 10mA, as stated in the Absolute Maximum
Ratings. Any input current beyond the Absolute
Maximum Ratings, or long-term operation at maximum
ratings, will shorten the lifespan of the amplifier.
The OPA300 and OPA301 series op amps use a classic
two-stage topology, shown in Figure 1. The differential
input pair is biased to maximize slew rate without
compromising stability or bandwidth. The folded
cascode adds the signal from the input pair and
presents a differential signal to the class AB output
stage. The class AB output stage allows rail- to-rail
output
swing,
with
high-impedance
loads
(> 2kΩ), typically 100mV from the supply rails. With 10Ω
loads, a useful output swing can be achieved and still
maintain high open-loop gain. See the typical
characteristic Output Voltage Swing vs Output Current.
+V
External
Pin
Internal
Circuitry
+VS
−
V
Figure 2. ESD Protection Diodes
VOUT
ENABLE FUNCTION
VBIAS
+
The shutdown function of the OPA300 and OPA2300 is
referenced to the negative supply voltage of the
operational amplifier. A logic level HIGH enables the op
amp. A valid logic HIGH is defined as 2.5V above the
negative supply applied to the enable pin. A valid logic
LOW is defined as < 0.8V above the negative supply
pin. If dual or split power supplies are used, care should
be taken to ensure logic input signals are properly
referred to the negative supply voltage. If this pin is not
connected to a valid high or low voltage, the internal
circuitry will pull the node high and enable the part to
function.
V
−
IN
Figure 1. OPA30x Classic Two-Stage Topology
OPERATING VOLTAGE
The logic input is a high-impedance CMOS input. For
battery-operated applications, this feature may be used
to greatly reduce the average current and extend
battery life. The enable time is 10µs; disable time is 1µs.
When disabled, the output assumes a high-impedance
state. This allows the OPA300 to be operated as a gated
amplifier, or to have its output multiplexed onto a
common analog output bus.
OPA300/OPA301 series op amp parameters are fully
specified from +2.7V to +5.5V. Supply voltages higher
than 5.5V (absolute maximum) can cause permanent
damage to the amplifier. Many specifications apply from
–40°C to +125°C. Parameters that vary significantly
with operating voltages or temperature are shown in the
Typical Characteristics.
10
ꢂ ꢀꢉꢠ ꢡ ꢡ ꢢ ꢂ ꢀꢉ ꢣꢠꢡ ꢡ
ꢂ ꢀꢉꢠ ꢡ ꢤꢢ ꢂ ꢀꢉ ꢣꢠꢡ ꢤ
www.ti.com
SBOS271B − MAY 2003 − REVISED JUNE 2005
DRIVING CAPACITIVE LOADS
DRIVING A 16-BIT ADC
When using high-speed operational amplifiers, it is
extremely important to consider the effects of
capacitive loading on amplifier stability. Capacitive
loading will interact with the output impedance of the
operational amplifier, and depending on the capacitor
value, may significantly decrease the gain bandwidth,
as well as introduce peaking. To reduce the effects of
capacitive loading and allow for additional capacitive
load drive, place a series resistor between the output
and the load. This will reduce available bandwidth, but
permit stable operation with capacitive loading.
Figure 3 illustrates the recommended relationship
between the resistor and capacitor values.
The OPA300/OPA301 series feature excellent
THD+noise, even at frequencies greater than 1MHz,
with a 16-bit settling time of 150ns. Figure 4 shows a
total single supply solution for high-speed data
acquisition. The OPA300/OPA301 directly drives the
ADS8401, a 1.25 mega sample per second (MSPS)
16-bit data converter. The OPA300/OPA301 is
configured in an inverting gain of 1, with a 5V single
supply. Results of the OPA300/OPA301 performance
are summarized in Table 1.
130pF
(mica)
100
75
50
25
0
Ω
1820
f
S = 1.25MSPS
f = 10kHz
5V
Ω
1820
VIN
Ω
10
ADS8401
OPA30x
130pF
(mica)
1.5nF
Figure 4. The OPA30x Drives the 16-Bit ADS8401
1
10
100
Capacitive Load (pF)
PARAMETER
THD
RESULTS (f = 10kHz)
−99.3dB
Figure 3. Recommended R and C Combinations
S
L
SFDR
101.2dB
Amplifiers configured in unity gain are most susceptible
to stability issues. The typical characteristic, Frequency
Response vs Capacitive Load, describes the relation-
ship between capacitive load and stability for the
OPA300/OPA301 series. In unity gain, the
OPA300/OPA301 series is capable of driving a few
picofarads of capacitive load without compromising
stability. Board level parasitic capacitance can often fall
into the range of a picofarad or more, and should be
minimized through good circuit-board layout practices
to avoid compromising the stability of the
OPA300/OPA301. For more information on detecting
parasitics during testing, see the Application Note
Measuring Board Parasitics in High-Speed Analog
Design (SBOA094), available at the TI web site
www.ti.com.
THD+N
SNR
84.2dB
84.3dB
Table 1. OPA30x Performance Results Driving a
1.25MSPS ADS8401
11
PACKAGE OPTION ADDENDUM
www.ti.com
22-Nov-2005
PACKAGING INFORMATION
Orderable Device
OPA2300AIDGSR
OPA2300AIDGSRG4
OPA2300AIDGST
OPA2300AIDGSTG4
OPA2301AID
Status (1)
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
Package Package
Pins Package Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3)
Qty
Type
Drawing
MSOP
DGS
10
10
10
10
8
2500 Green (RoHS & CU NIPDAU Level-2-260C-1 YEAR
no Sb/Br)
MSOP
MSOP
MSOP
SOIC
DGS
DGS
DGS
D
2500 Green (RoHS & CU NIPDAU Level-2-260C-1 YEAR
no Sb/Br)
250 Green (RoHS & CU NIPDAU Level-2-260C-1 YEAR
no Sb/Br)
250 Green (RoHS & CU NIPDAU Level-2-260C-1 YEAR
no Sb/Br)
75 Green (RoHS & CU NIPDAU Level-2-260C-1 YEAR
no Sb/Br)
OPA2301AIDG4
SOIC
D
8
75 Green (RoHS & CU NIPDAU Level-2-260C-1 YEAR
no Sb/Br)
OPA2301AIDGKR
OPA2301AIDGKRG4
OPA2301AIDGKT
OPA2301AIDGKTG4
OPA2301AIDR
MSOP
MSOP
MSOP
MSOP
SOIC
DGK
DGK
DGK
DGK
D
8
2500 Green (RoHS & CU NIPDAU Level-2-260C-1 YEAR
no Sb/Br)
8
2500 Green (RoHS & CU NIPDAU Level-2-260C-1 YEAR
no Sb/Br)
8
250 Green (RoHS & CU NIPDAU Level-2-260C-1 YEAR
no Sb/Br)
8
250 Green (RoHS & CU NIPDAU Level-2-260C-1 YEAR
no Sb/Br)
8
2500 Green (RoHS & CU NIPDAU Level-2-260C-1 YEAR
no Sb/Br)
OPA2301AIDRG4
SOIC
D
8
2500 Green (RoHS & CU NIPDAU Level-2-260C-1 YEAR
no Sb/Br)
OPA300AID
OPA300AIDBVR
OPA300AIDBVT
OPA300AIDR
OPA301AID
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
SOIC
SOT-23
SOT-23
SOIC
D
DBV
DBV
D
8
6
6
8
8
5
5
8
100
3000
250
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
CU NIPDAU Level-3-235C-168 HR
CU SNPB
CU SNPB
Level-2-240C-1 YEAR
Level-2-240C-1 YEAR
2500
100
CU NIPDAU Level-3-235C-168 HR
CU NIPDAU Level-3-240C-168 HR
CU NIPDAU Level-1-235C-UNLIM
CU NIPDAU Level-1-235C-UNLIM
CU NIPDAU Level-3-240C-168 HR
SOIC
D
OPA301AIDBVR
OPA301AIDBVT
OPA301AIDR
SOT-23
SOT-23
SOIC
DBV
DBV
D
3000
250
2500
(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.
(2)
Eco Plan
-
The planned eco-friendly classification: Pb-Free (RoHS) or Green (RoHS
&
no Sb/Br)
-
please check
http://www.ti.com/productcontent for the latest availability information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements
for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered
at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame
retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder
Addendum-Page 1
PACKAGE OPTION ADDENDUM
www.ti.com
22-Nov-2005
temperature.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is
provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the
accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take
reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on
incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited
information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI
to Customer on an annual basis.
Addendum-Page 2
IMPORTANT NOTICE
Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications,
enhancements, improvements, and other changes to its products and services at any time and to discontinue
any product or service without notice. Customers should obtain the latest relevant information before placing
orders and should verify that such information is current and complete. All products are sold subject to TI’s terms
and conditions of sale supplied at the time of order acknowledgment.
TI warrants performance of its hardware products to the specifications applicable at the time of sale in
accordance with TI’s standard warranty. Testing and other quality control techniques are used to the extent TI
deems necessary to support this warranty. Except where mandated by government requirements, testing of all
parameters of each product is not necessarily performed.
TI assumes no liability for applications assistance or customer product design. Customers are responsible for
their products and applications using TI components. To minimize the risks associated with customer products
and applications, customers should provide adequate design and operating safeguards.
TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right,
copyright, mask work right, or other TI intellectual property right relating to any combination, machine, or process
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does not constitute a license from TI to use such products or services or a warranty or endorsement thereof.
Use of such information may require a license from a third party under the patents or other intellectual property
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Reproduction of information in TI data books or data sheets is permissible only if reproduction is without
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is an unfair and deceptive business practice. TI is not responsible or liable for any such statements.
Following are URLs where you can obtain information on other Texas Instruments products and application
solutions:
Products
Applications
Audio
Amplifiers
amplifier.ti.com
www.ti.com/audio
Data Converters
dataconverter.ti.com
Automotive
www.ti.com/automotive
DSP
dsp.ti.com
Broadband
Digital Control
Military
www.ti.com/broadband
www.ti.com/digitalcontrol
www.ti.com/military
Interface
Logic
interface.ti.com
logic.ti.com
Power Mgmt
Microcontrollers
power.ti.com
Optical Networking
Security
www.ti.com/opticalnetwork
www.ti.com/security
www.ti.com/telephony
www.ti.com/video
microcontroller.ti.com
Telephony
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Wireless
www.ti.com/wireless
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Copyright 2005, Texas Instruments Incorporated
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