TI OPA2364IDGKR 1.8v, 7mhz, 90db cmrr, single-supply, rail-to-rail i/o operational amplifier Datasheet

OPA
4364
®
OPA
436
4
OPA2
364
OPA2
363
OPA
363
OPA363
OPA2363
OPA364
OPA2364
OPA4364
SBOS259B – SEPTEMBER 2002 – REVISED FEBRUARY 2003
1.8V, 7MHz, 90dB CMRR,
SINGLE-SUPPLY, RAIL-TO-RAIL I/O
OPERATIONAL AMPLIFIER
FEATURES
DESCRIPTION
● 1.8V OPERATION
● MicroSIZE PACKAGES
● BANDWIDTH: 7MHz
● CMRR: 90dB (typical)
● SLEW RATE: 5V/µs
● LOW OFFSET: 500µV (max)
● QUIESCENT CURRENT: 750µA/Channel (max)
● SHUTDOWN MODE: < 1µA/Channel
The OPA363 and OPA364 families are high-performance
CMOS operational amplifiers optimized for very low voltage,
single-supply operation. These miniature, low-cost amplifiers
are designed to operate on single supplies from 1.8V (±0.9V)
to 5.5V (±2.75V). Applications include sensor amplification
and signal conditioning in battery-powered systems.
The OPA363 and OPA364 families offer excellent CMRR
without the crossover associated with traditional complimentary input stages. This results in excellent performance for
driving Analog-to-Digital (A/D) converters without degradation of differential linearity and THD. The input commonmode range includes both the negative and positive supplies.
The output voltage swing is within 10mV of the rails.
APPLICATIONS
●
●
●
●
●
The OPA363 family includes a shutdown mode. Under logic
control, the amplifiers can be switched from normal operation
to a standby current that is less than 1µA.
SIGNAL CONDITIONING
DATA ACQUISITION
PROCESS CONTROL
ACTIVE FILTERS
TEST EQUIPMENT
OPA363
SOT23-5
SOT23-6
OPA364
The single version is available in the MicroSIZE SOT23-5
(SOT23-6 for shutdown) and SO-8. The dual version is
available in MSOP-8, MSOP-10, and SO-8 packages. Quad
packages are available in TSSOP-14 and SO-14 packages.
All versions are specified for operation from –40°C to +125°C.
OPA2363
OPA2364
x
x
MSOP-8
x
MSOP-10
SO-8
OPA4364
x
x
x
x
TSSOP-14
x
SO-14
x
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.
Copyright © 2002-2003, Texas Instruments Incorporated
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.
www.ti.com
ABSOLUTE MAXIMUM RATINGS(1)
ELECTROSTATIC
DISCHARGE SENSITIVITY
Supply Voltage ................................................................................. +5.5V
Signal Input Terminals, Voltage(2) ........................... –0.5V to (V+) + 0.5V
Current(2) .................................................. ±10mA
Enable Input ............................................................... (V–) – 0.5V to 5.5V
Output Short-Circuit(3) .............................................................. Continuous
Operating Temperature .................................................. –40°C to +150°C
Storage Temperature ..................................................... –65°C to +150°C
Junction Temperature .................................................................... +150°C
Lead Temperature (soldering, 10s) ............................................... +300°C
This integrated circuit can be damaged by ESD. Texas
Instruments 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.
NOTES: (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) 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. (3) Short-circuit to ground one amplifier
per package.
PACKAGE/ORDERING INFORMATION
PRODUCT
OPA363I
"
OPA363I
"
OPA2363I
"
OPA364I
"
OPA364I
"
OPA2364I
"
OPA2364I
"
OPA363AI
"
OPA363AI
"
OPA2363AI
"
OPA364AI
"
OPA364AI
"
OPA2364AI
"
OPA2364AI
"
OPA4364AI
"
OPA4364AI
"
PACKAGE-LEAD
PACKAGE
DESIGNATOR(1)
SPECIFIED
TEMPERATURE
RANGE
PACKAGE
MARKING
ORDERING
NUMBER
TRANSPORT
MEDIA, QUANTITY
SOT23-6
DBV
–40°C to +125°C
A40
"
"
"
"
OPA363IDBVT
OPA363IDBVR
Tape and Reel, 250
Tape and Reel, 3000
SO-8
D
–40°C to +125°C
OPA363
"
"
"
"
OPA363ID
OPA363IDR
Rails, 100
Tape and Reel, 2500
MSOP-10
DGS
–40°C to +125°C
BHK
"
"
"
"
OPA2363IDGST
OPA2363IDGSR
Tape and Reel, 250
Tape and Reel, 2500
SOT23-5
DBV
–40°C to +125°C
A41
"
"
"
"
OPA364IDBVT
OPA364IDBVR
Tape and Reel, 250
Tape and Reel, 3000
SO-8
D
–40°C to +125°C
OPA364
"
"
"
"
OPA364ID
OPA364IDR
Rails, 100
Tape and Reel, 2500
MSOP-8
DGK
–40°C to +125°C
BHL
"
"
"
"
OPA2364IDGKT
OPA2364IDGKR
Tape and Reel, 250
Tape and Reel, 2500
SO-8
D
–40°C to +125°C
OPA2364
"
"
"
"
OPA2364ID
OPA2364IDR
Rails, 100
Tape and Reel, 2500
SOT23-6
DBV
–40°C to +125°C
A40
"
"
"
"
OPA363AIDBVT
OPA363AIDBVR
Tape and Reel, 250
Tape and Reel, 3000
SO-8
D
–40°C to +125°C
OPA363A
"
"
"
"
OPA363AID
OPA363AIDR
Rails, 100
Tape and Reel, 2500
MSOP-10
DGS
–40°C to +125°C
BHK
"
"
"
"
OPA2363AIDGST
OPA2363AIDGSR
Tape and Reel, 250
Tape and Reel, 2500
SOT23-5
DBV
–40°C to +125°C
A41
"
"
"
"
OPA364AIDBVT
OPA364AIDBVR
Tape and Reel, 250
Tape and Reel, 3000
SO-8
D
–40°C to +125°C
OPA364A
"
"
"
"
OPA364AID
OPA364AIDR
Rails, 100
Tape and Reel, 2500
SO-8
D
–40°C to +125°C
OPA2634A
"
"
"
"
OPA2364AID
OPA2364AIDR
Rails, 100
Tape and Reel, 2500
MSOP-8
DGK
–40°C to +125°C
BHL
"
"
"
"
OPA2364AIDGKT
OPA2364AIDGKR
Tape and Reel, 250
Tape and Reel, 2500
SO-14
D
–40°C to +125°C
OPA4364A
"
"
"
"
OPA4364AID
OPA4364AIDR
Rails, 58
Tape and Reel, 2500
TSSOP-14
PW
–40°C to +125°C
OPA4364A
"
"
"
"
OPA4364AIPWT
OPA4364AIPWR
Tape and Reel, 250
Tape and Reel, 2500
NOTES: (1) For the most current specifications and package information, refer to our web site at www.ti.com.
2
OPA363, 2363, 364, 2364, 4364
www.ti.com
SBOS259B
PIN CONFIGURATIONS
Top View
OPA363(1)
V– 2
+In 3
6
V+
5
Enable
V– 2
4
–In
+In 3
VOUT 1
SOT23-6
OPA364
5
V+
A41
A40
VOUT 1
OPA364(1)
4
–In
NC 1
8
NC
–In 2
7
V+
+In 3
6
VOUT
V– 4
5
NC
SOT23-5
SO-8
OPA4364
OPA2363
VOUT A
1
–In A
2
13
–In D
3
12
+In D
V+
4
11
V–
+In B
5
10
+In C
VOUT B
–In A
2
8
–In B
+In A
9
3
VOUT D
1
+V
A
+In A
14
VOUT A
10
A
D
B
–V
4
7
+In B
Enable A
5
6
Enable B
B
MSOP-10
C
–In B
6
9
–In C
VOUT B
7
8
VOUT C
SO-14, TSSOP-14
OPA2364
OPA363
NC 1
8
Enable
Out A
1
8
V+
–In 2
7
V+
–In A
2
7
Out B
+In 3
6
VOUT
+In A
3
6
–In B
5
NC(1)
V–
4
5
+In B
V– 4
SO-8
NOTE: (1) Orient according to marking.
MSOP-8, SO-8
NC = No Internal Connection.
OPA363, 2363, 364, 2364, 4364
SBOS259B
www.ti.com
3
ELECTRICAL CHARACTERISTICS: VS = +1.8V to +5.5V
Boldface limits apply over the specified temperature range, TA = –40°C to +125°C.
At TA = +25°C, RL = 10kΩ connected to VS /2, and VOUT = VS /2, VCM = VS /2, unless otherwise noted.
OPAx363, OPAx364
PARAMETER
CONDITION
OFFSET VOLTAGE
Input Offset Voltage, OPA363I, OPA364I
VOS
OPA2363I, OPA2364I
OPA363AI, OPA364AI, OPA2363AI, OPA2364AI, OPA4364AI
Drift
dVOS /dT
vs Power Supply
PSRR
Channel Separation, dc
INPUT BIAS CURRENT
Input Bias Current
over Temperature
Input Offset Current
NOISE
Input Voltage Noise, f = 0.1Hz to 10Hz
Input Voltage Noise Density, f = 10kHz
Input Current Noise Density, f = 10kHz
INPUT VOLTAGE RANGE
Common-Mode Voltage Range
Common-Mode Rejection Ratio
MIN
VS = +5V
1
3
80
1
VS = 1.8V to 5.5V, VCM = 0
IOS
en
en
in
FREQUENCY RESPONSE
Gain Bandwidth Product
Slew Rate
SR
Settling Time, 0.1%
0.01%
Overload Recovery Time
Total Harmonic Distortion + Noise
OUTPUT
Voltage Output Swing from Rail
over Temperature
Short-Circuit Current
Capacitive Load Drive
(V–) – 0.1V < VCM < (V+) + 0.1V
TEMPERATURE RANGE
Specified Range
Operating Range
Storage Range
Thermal Resistance
SOT23-5, SOT23-6
MSOP-8, MSOP-10, SO-8
TSSOP-14, SO-14
500
900
2.5
µV
µV
mV
µV/°C
µV/V
µV/V
330
pA
pA
µVp-p
nV/√Hz
fA/√Hz
(V–) – 0.1
74
90
(V+) + 0.1
V
dB
2
3
pF
pF
100
dB
dB
dB
7
5
1
1.5
0.8
0.002
MHz
V/µs
µs
µs
µs
%
10
mV
mV
mA
1
20
µs
µs
V
V
µA
RL = 10kΩ, 100mV < VO < (V+) – 100mV
AOL
94
90
86
VS = +1.8V to +5.5V
CL = 100pF
GBW
tS
THD+N
G = +1
VS = +5V, 4V Step, G = +1
VS = +5V, 4V Step, G = +1
VIN • Gain > VS
VS = +5V, G = +1, f = 20Hz to 20kHz
RL = 10kΩ
RL = 10kΩ
ISC
CLOAD
SHUTDOWN (for OPAx363)
tOFF
tON(1)
VL (shutdown)
VH (amplifier is active)
IQSD
POWER SUPPLY
Specified Voltage Range
Operating Voltage Range
Quiescent Current (per amplifier)
UNITS
10
17
0.6
INPUT CAPACITANCE
Differential
Common-Mode
OPEN-LOOP GAIN
Open-Loop Voltage Gain
OPA4364AI
over Temperature
MAX
±1
±10
See Typical Characteristics
±1
±10
IB
VCM
CMRR
TYP
20
20
See Typical Characteristics
See Typical Characteristics
(V–) + 0.8
5.5
0.9
0.75 (V+)
VS
IQ
1.8
5.5
1.8 to 5.5
650
850
1.1
VS = +1.8V
VS = +3.6V
VS = +5.5V
–40
–40
–65
θJA
200
150
100
750
1000
1.4
V
V
µA
µA
mA
+125
+150
+150
°C
°C
°C
°C/W
°C/W
°C/W
NOTE: (1) Part is considered enabled when input offset voltage returns to specified range.
4
OPA363, 2363, 364, 2364, 4364
www.ti.com
SBOS259B
TYPICAL CHARACTERISTICS
At TCASE = +25°C, RL = 10kΩ, and connected to VS /2, VOUT = VS/2, VCM = VS/2, unless otherwise noted.
COMMON-MODE REJECTION RATIO vs FREQUENCY
OPEN-LOOP GAIN/PHASE vs FREQUENCY
120
0
100
–30
80
–60
60
–90
40
–120
20
–150
0
–180
100
90
CMRR (dB)
70
Phase (°)
Voltage Gain (dB)
80
60
50
40
30
20
10
–20
0
10
100
1k
10k
100k
1M
10M
10
100M
100
1k
10k
100k
1M
10M
Frequency (Hz)
Frequency (Hz)
POWER-SUPPLY REJECTION RATIO
vs FREQUENCY
QUIESCENT CURRENT vs SUPPLY VOLTAGE
100
1.4
Per Amplifier
Quiescent Current (mA)
PSRR (dB)
80
60
40
20
0
1.0
0.8
0.6
0.4
1
10
100
1k
10k
100k
1M
10M
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
Frequency (Hz)
Supply Voltage (V)
TOTAL HARMONIC DISTORTION + NOISE
vs FREQUENCY
TOTAL HARMONIC DISTORTION + NOISE
vs FREQUENCY
6.0
1
VOUT = –10dBv
G = 10, RL = 2kΩ
VS = 1.8V
0.1
G = 10, RL = 2kΩ
VS = 5V
(VS = 5V, VOUT = 1Vrms)
0.1
G = 10, RL = 10kΩ
VS = 1.8V, 5V
0.01
G = 1, RL = 2kΩ
VS = 1.8V
G = 1,
RL = 2kΩ
VS = 5V
0.0001
100
1k
0.01
G = 10, RL = 10kΩ
0.001
G = 1,
RL = 10kΩ
VS = 1.8V, 5V
0.001
10
G = 10, RL = 2kΩ
THD+N (%)
1
THD+N (%)
1.2
G = 1, RL = 2kΩ
0.0001
10k
100k
10
100
1k
10k
100k
Frequency (Hz)
Frequency (Hz)
OPA363, 2363, 364, 2364, 4364
SBOS259B
G = 1, RL = 10kΩ
www.ti.com
5
TYPICAL CHARACTERISTICS (Cont.)
At TCASE = +25°C, RL = 10kΩ, and connected to VS /2, VOUT = VS/2, VCM = VS/2, unless otherwise noted.
INPUT VOLTAGE NOISE SPECTRAL DENSITY
vs FREQUENCY
SHORT-CIRCUIT CURRENT vs SUPPLY VOLTAGE
120
Short-Circuit Current (mA)
Input Voltage Noise (nV/√Hz)
1000
100
+ISC
80
60
40
–ISC
20
0
10
10
3
100
1k
10k
1.5
100k
4.0
4.5
5.0
2
Input Bias Current (pA)
VS = ±0.9V
0
–1
VS = ±2.5V
±10
±20
5.5
4
VS = ±1.65V
TA = –40°C
TA = +25°C
TA = +125°C
VS = ±1.65V
±30 ±40 ±50
±60
±70
0
–2
VCM = +5.1V
–4
–6
–8
–10
–0.5
±80 ±90 ±100
VCM = –0.1V
0.5
1.5
2.5
3.5
4.5
5.5
Common-Mode Voltage (V)
Output Current (mA)
INPUT BIAS CURRENT vs TEMPERATURE
INPUT OFFSET CURRENT vs TEMPERATURE
10k
10k
Input Bias Current (pA)
Input Offset Current (pA)
3.5
INPUT BIAS CURRENT
vs INPUT COMMON-MODE VOLTAGE
–2
1k
100
10
1
–50
–25
0
25
50
75
100
1k
100
10
1
–50
125
–25
0
25
50
75
100
125
Temperature (°C)
Temperature (°C)
6
3.0
OUTPUT VOLTAGE SWING vs OUTPUT CURRENT
1
0
2.5
Supply Voltage (V)
VS = ±2.5V
–3
2.0
Frequency (Hz)
2
Output Voltage (V)
100
OPA363, 2363, 364, 2364, 4364
www.ti.com
SBOS259B
TYPICAL CHARACTERISTICS (Cont.)
At TCASE = +25°C, RL = 10kΩ, and connected to VS /2, VOUT = VS/2, VCM = VS/2, unless otherwise noted.
SMALL-SIGNAL OVERSHOOT
vs LOAD CAPACITANCE
SETTLING TIME vs CLOSED-LOOP GAIN
100
60
Settling Time (µs)
Overshoot (%)
50
40
30
20
G = +1
0.01%
10
0.1%
1
10
G = +10
0.1
0
100
1k
1
10
Load Capacitance (pF)
OFFSET VOLTAGE PRODUCTION DISTRIBUTION
OFFSET DRIFT DISTRIBUTION
16
20
Typical Production
Distribution of
Packaged Units
Percent of Amplifiers (%)
14
Percent of Amplifiers (%)
100
Closed-Loop Gain (V/V)
15
10
5
12
OPA36xAI
10
8
6
4
2
0
0
0
1
2
3
4
5
6
7
8
9
–2.5
> 10
–2.0
–1.0
0
1.0
2.0
2.5
Offset Voltage (mV)
Offset Voltage Drift (µV/°C)
OUTPUT ENABLE CHARACTERISTIC
(VS = 5V, VOUT = 20kHz Sinusoid)
CHANNEL SEPARATION vs FREQUENCY
130
VENABLE
VOUT
Channel Separation (dB)
120
110
100
90
80
70
60
50
40
50µs/div
10
100
1k
10k
100k
1M
10M
Frequency (Hz)
OPA363, 2363, 364, 2364, 4364
SBOS259B
www.ti.com
7
TYPICAL CHARACTERISTICS (Cont.)
At TCASE = +25°C, RL = 10kΩ, and connected to VS /2, VOUT = VS/2, VCM = VS/2, unless otherwise noted.
SMALL-SIGNAL STEP RESPONSE
(CL = 100pF)
1V/div
50mV/div
LARGE-SIGNAL STEP RESPONSE
(CL = 100pF)
250ns/div
1µs/div
APPLICATIONS INFORMATION
VS
Regulated
Charge Pump
VOUT = VCC +1.8V
The OPA363 and OPA364 series op amps are rail-to-rail
operational amplifiers with excellent CMRR, low noise, low
offset, and wide bandwidth on supply voltages as low as
±0.9V. The OPA363 features an additional pin for shutdown/
enable function. These families do not exhibit phase reversal
and are unity-gain stable. Specified over the industrial temperature range of –40°C to +125°C, the OPA363 and OPA364
families offer precision performance for a wide range of
applications.
VCC + 1.8V
IBIAS
Patent Pending
Very Low Ripple
Topology
IBIAS
RAIL-TO-RAIL INPUT
The OPA363 and OPA364 feature excellent rail-to-rail operation, with supply voltages as low as ±0.9V. The input common-mode voltage range of the OPA363 and OPA364 family
extends 100mV beyond supply rails. The unique input topology of the OPA363 and OPA364 eliminates the input offset
transition region typical of most rail-to-rail complimentary
stage operational amplifiers, allowing the OPA363 and
OPA364 to provide superior common-mode performance
over the entire common-mode input range, as seen in Figure 1.
This feature prevents degradation of the differential linearity
error and THD when driving A/D converters. A simplified
schematic of the OPA363 and OPA364 is shown in Figure 2.
VOUT
IBIAS
VIN–
VIN+
IBIAS
1.0
OPA363 and OPA364
0.5
FIGURE 2. Simplified Schematic.
0
VOS (mV)
–0.5
–1.0
OPERATING VOLTAGE
–1.5
The OPA363 and OPA364 series op amp parameters are fully
specified from +1.8V to +5.5V. Single 0.1µF bypass capacitors should be placed across supply pins and as close to the
part as possible. Supply voltages higher than 5.5V (absolute
maximum) may 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.
–2.0
Competitors
–2.5
–3.0
–3.5
–0.2
0
0.2
0.4
0.6
0.8
1.0 1.2
1.4
1.6
1.8
2.0
Common-Mode Voltage (V)
FIGURE 1. OPA363 and OPA364 have Linear Offset Over
Entire Common-Mode Range.
8
OPA363, 2363, 364, 2364, 4364
www.ti.com
SBOS259B
ENABLE FUNCTION
INPUT AND ESD PROTECTION
The shutdown (enable) function of the OPA363 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 voltage > 75% of the positive supply applied to the
enable pin. The valid logic HIGH signal can be as much as
5.5V above the negative supply, independent of the positive
supply voltage. 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. This pin
should be connected to a valid high or low voltage or driven,
not left open circuit.
All OPA363 and OPA364 pins are static protected with
internal ESD protection diodes tied to the supplies. These
diodes will provide overdrive protection if the current is
externally limited to 10mA, as stated in the absolute maximum ratings and shown in Figure 4.
The logic input is a high-impedance CMOS input. Dual op
amps are provided separate logic inputs. For battery-operated applications, this feature may be used to greatly reduce
the average current and extend battery life. The enable time
is 20µs; disable time is 1µs. When disabled, the output
assumes a high-impedance state. This allows the OPA363 to
be operated as a “gated” amplifier, or to have its output
multiplexed onto a common analog output bus.
CAPACITIVE LOAD
The OPA363 and OPA364 series op amps can drive a wide
range of capacitive loads. However, all op amps under
certain conditions may become unstable. Op amp configuration, gain, and load value are just a few of the factors to
consider when determining stability. An op amp in unity-gain
configuration is the most susceptible to the effects of capacitive load. The capacitive load reacts with the output resistance of the op amp to create a pole in the small-signal
response, which degrades the phase margin.
In unity gain, the OPA363 and OPA364 series op amps
perform well with a pure capacitive load up to approximately
1000pF. The ESR (Equivalent Series Resistance) of the
loading capacitor may be sufficient to allow the OPA363 and
OPA364 to directly drive very large capacitive loads (> 1µF).
Increasing gain enhances the amplifier’s ability to drive more
capacitance. See the typical characteristic “Small-Signal Overshoot vs Capacitive Load.”
One method of improving capacitive load drive in the unitygain configuration is to insert a 10Ω to 20Ω resistor in series
with the output, as shown in Figure 3. This significantly
reduces ringing with large capacitive loads. However, if there
is a resistive load in parallel with the capacitive load, it
creates a voltage divider introducing a dc error at the output
and slightly reduces output swing. This error may be insignificant. For instance, with RL = 10kΩ and RS = 20Ω, there is
only about a 0.2% error at the output.
V+
OPAx363
OPAx364
VIN
RS
VOUT
10Ω to
20Ω
RL
CL
V+
IOVERLOAD
10mA max
VOUT
OPAx363
VIN
5kΩ
FIGURE 4. Input Current Protection.
ACHIEVING OUTPUT SWING TO
THE OP AMP’S NEGATIVE RAIL
Some applications require an accurate output voltage swing
from 0V to a positive full-scale voltage. A good single supply op
amp may be able to swing within a few mV of single supply
ground, but as the output is driven toward 0V, the output stage
of the amplifier will prevent the output from reaching the
negative supply rail of the amplifier.
The output of the OPA363 or OPA364 can be made to swing to
ground, or slightly below, on a single supply power source. To do
so requires use of another resistor and an additional, more
negative power supply than the op amp’s negative supply. A
pulldown resistor may be connected between the output and the
additional negative supply to pull the output down below the value
that the output would otherwise achieve as shown in Figure 5.
V+ = +5V
OPA363
OPA364
VOUT
VIN
500µA
Op Amp’s
Negative
Supply
Grounded
RP = 10kΩ
–V = –5V
(Additional
Negative Supply)
FIGURE 5. OPA363 and OPA364 Swing to Ground.
This technique will not work with all op amps. The output
stage of the OPA363 and OPA364 allows the output voltage
to be pulled below that of most op amps, if approximately
500µA is maintained through the output stage. To calculate
the appropriate value load resistor and negative supply,
RL = –V/500µA. The OPA363 and OPA364 have been
characterized to perform well under the described conditions,
maintaining excellent accuracy down to 0V and as low as
–10mV. Limiting and nonlinearity occur below –10mV, with
linearity returning as the output is again driven above
–10mV.
FIGURE 3. Improving Capacitive Load Drive.
OPA363, 2363, 364, 2364, 4364
SBOS259B
www.ti.com
9
BUFFERED REFERENCE VOLTAGE
Many single-supply applications require a mid-supply reference voltage. The OPA363 and OPA364 offer excellent
capacitive load drive capability, and can be configured to
provide a 0.9V reference voltage, as can be seen in Figure 6.
For appropriate loading considerations, see the “Capacitive
Load” section.
V+
V+
R1
10kΩ
V+ = 1.8V
V+ = 1.8V
100Ω
OPA363
OPA364
ADS8324
VIN
1nF
FIGURE 7. The OPA363 and OPA364 Directly Drive the
ADS8324.
OPAx363
OPAx364
0.9V
V+
CL = 1µF
V+
R2
10kΩ
100Ω
OPA363
OPA364
MSP430
VIN
1nF
FIGURE 6. The OPA363 and OPA364 Provide a Stable
Reference Voltage.
DIRECTLY DRIVING THE ADS8324 AND
THE MSP430
FIGURE 8. Driving the 12-Bit A/D Converter on the MSP430.
The OPA363 and OPA364 series op amps are optimized for
driving medium speed (up to 100kHz) sampling A/D converters. However, they also offer excellent performance for
higher speed converters. The no crossover input stage of the
OPA363 and OPA364 directly drive A/D converters without
degradation of differential linearity and THD. They provide an
effective means of buffering the A/D converters input capacitance and resulting charge injection while providing signal
gain. Figure 7 and Figure 8 show the OPA363 and OPA364
configured to drive the ADS8324 and the 12-bit
A/D converter on the MSP430.
AUDIO APPLICATIONS
The OPA363 and OPA364 op amp family has linear offset
voltage over the entire input common-mode range. Combined with low-noise, this feature makes the OPA363 and
OPA364 suitable for audio applications. Single supply 1.8V
operation allows the OPA2363 and OPA2364 to be optimal
candidates for dual stereo-headphone drivers and microphone pre-amplifiers in portable stereo equipment, see Figures 9 and 10.
20kΩ
V+
1µF
20kΩ
One of Right or Left Channel
20kΩ
20kΩ
1/2
OPA2363
V+
10kΩ
V–
1/2
TPS6100
47pF
10kΩ
One of Right or Left
Headphone Out
V–
Internally
Biased
V–
FIGURE 9. OPA2363 Configured as Half of a Dual Stereo Headphone Driver.
10
OPA363, 2363, 364, 2364, 4364
www.ti.com
SBOS259B
ACTIVE FILTERING
Low harmonic distortion and noise specifications plus high
gain and slew rate make the OPA363 and OPA364 optimal
candidates for active filtering. Figure 11 shows the OPA2363
configured as a low-distortion, 3rd-order GIC (General Immittance Converter) filter. Figure 12 shows the implementation
of a Sallen-Key, 3-pole, low-pass Bessel filter.
49kΩ
Clean 3.3V Supply
3.3V
4kΩ
OPAx363
OPAx364
Electret
Microphone
VOUT
5kΩ
6kΩ
1µF
FIGURE 10. Microphone Preamplifier.
VIN
R1
R3
3.92kΩ
1.33kΩ
2
3
R11
3.92kΩ
R12
3.92kΩ
7
1/2
OPA2363
2
6
VOUT
C4
1000pF
3
6
OPA363
1/2
OPA2363
1
C13
1000pF
5
R14
3.48kΩ
C15
1000pF
FIGURE 11. The OPA2363 as a 3rd-Order, 40kHz, Low-Pass GIC Filter.
220pF
1.8kΩ
19.5kΩ
150kΩ
VIN = 1Vrms
3.3nF
47pF
OPA363
VOUT
FIGURE 12. The OPA363 or OPA364 Configured as a 3-Pole, 20kHz, Sallen-Key Filter.
OPA363, 2363, 364, 2364, 4364
SBOS259B
www.ti.com
11
PACKAGE DRAWINGS
DBV (R-PDSO-G6)
PLASTIC SMALL-OUTLINE
0,95
6X
6
0,50
0,25
0,20 M
4
1,70
1,50
1
0,15 NOM
3,00
2,60
3
Gage Plane
3,00
2,80
0,25
0 –8
0,55
0,35
Seating Plane
1,45
0,95
0,05 MIN
0,10
4073253-5/G 01/02
NOTES: A.
B.
C.
D.
12
All linear dimensions are in millimeters.
This drawing is subject to change without notice.
Body dimensions do not include mold flash or protrusion.
Leads 1, 2, 3 may be wider than leads 4, 5, 6 for package orientation.
OPA363, 2363, 364, 2364, 4364
www.ti.com
SBOS259B
PACKAGE DRAWINGS (Cont.)
D (R-PDSO-G**)
PLASTIC SMALL-OUTLINE PACKAGE
8 PINS SHOWN
0.020 (0,51)
0.014 (0,35)
0.050 (1,27)
8
0.010 (0,25)
5
0.008 (0,20) NOM
0.244 (6,20)
0.228 (5,80)
0.157 (4,00)
0.150 (3,81)
Gage Plane
1
4
0.010 (0,25)
0°– 8°
A
0.044 (1,12)
0.016 (0,40)
Seating Plane
0.010 (0,25)
0.004 (0,10)
0.069 (1,75) MAX
PINS **
0.004 (0,10)
8
14
16
A MAX
0.197
(5,00)
0.344
(8,75)
0.394
(10,00)
A MIN
0.189
(4,80)
0.337
(8,55)
0.386
(9,80)
DIM
4040047/E 09/01
NOTES: A.
B.
C.
D.
All linear dimensions are in inches (millimeters).
This drawing is subject to change without notice.
Body dimensions do not include mold flash or protrusion, not to exceed 0.006 (0,15).
Falls within JEDEC MS-012
OPA363, 2363, 364, 2364, 4364
SBOS259B
www.ti.com
13
PACKAGE DRAWINGS (Cont.)
DGS (S-PDSO-G10)
PLASTIC SMALL-OUTLINE PACKAGE
0,27
0,17
0,50
10
0,08 M
6
0,15 NOM
3,05
2,95
4,98
4,78
Gage Plane
0,25
1
0°– 6°
5
3,05
2,95
0,69
0,41
Seating Plane
1,07 MAX
0,15
0,05
0,10
4073272/B 08/01
NOTES: A.
B.
C.
A.
14
All linear dimensions are in millimeters.
This drawing is subject to change without notice.
Body dimensions do not include mold flash or protrusion.
Falls within JEDEC MO-187
OPA363, 2363, 364, 2364, 4364
www.ti.com
SBOS259B
PACKAGE DRAWINGS (Cont.)
DBV (R-PDSO-G5)
PLASTIC SMALL-OUTLINE
0,50
0,30
0,95
5
0,20 M
4
1,70
1,50
1
0,15 NOM
3,00
2,60
3
Gage Plane
3,00
2,80
0,25
0° – 8°
0,55
0,35
Seating Plane
1,45
0,95
0,05 MIN
0,10
4073253-4/G 01/02
NOTES: A.
B.
C.
D.
All linear dimensions are in millimeters.
This drawing is subject to change without notice.
Body dimensions do not include mold flash or protrusion.
Falls within JEDEC MO-178
OPA363, 2363, 364, 2364, 4364
SBOS259B
www.ti.com
15
PACKAGE DRAWINGS (Cont.)
DGK (R-PDSO-G8)
PLASTIC SMALL-OUTLINE PACKAGE
0,38
0,25
0,65
8
0,08 M
5
0,15 NOM
3,05
2,95
4,98
4,78
Gage Plane
0,25
1
0°– 6°
4
3,05
2,95
0,69
0,41
Seating Plane
1,07 MAX
0,15
0,05
0,10
4073329/C 08/01
NOTES: A.
B.
C.
D.
16
All linear dimensions are in millimeters.
This drawing is subject to change without notice.
Body dimensions do not include mold flash or protrusion.
Falls within JEDEC MO-187
OPA363, 2363, 364, 2364, 4364
www.ti.com
SBOS259B
PACKAGE DRAWINGS (Cont.)
PW (R-PDSO-G**)
PLASTIC SMALL-OUTLINE PACKAGE
14 PINS SHOWN
0,30
0,19
0,65
14
0,10 M
8
0,15 NOM
4,50
4,30
6,60
6,20
Gage Plane
0,25
1
7
0°– 8°
A
0,75
0,50
Seating Plane
0,15
0,05
1,20 MAX
PINS **
0,10
8
14
16
20
24
28
A MAX
3,10
5,10
5,10
6,60
7,90
9,80
A MIN
2,90
4,90
4,90
6,40
7,70
9,60
DIM
4040064/F 01/97
NOTES: A.
B.
C.
D.
All linear dimensions are in millimeters.
This drawing is subject to change without notice.
Body dimensions do not include mold flash or protrusion not to exceed 0,15.
Falls within JEDEC MO-153
OPA363, 2363, 364, 2364, 4364
SBOS259B
www.ti.com
17
PACKAGE OPTION ADDENDUM
www.ti.com
25-Jan-2005
PACKAGING INFORMATION
Orderable Device
Status (1)
Package
Type
Package
Drawing
Pins Package Eco Plan (2)
Qty
OPA2363AIDGSR
ACTIVE
MSOP
DGS
10
2500
None
CU NIPDAU
Level-3-235C-168 HR
OPA2363AIDGST
ACTIVE
MSOP
DGS
10
250
None
CU NIPDAU
Level-3-235C-168 HR
OPA2363IDGSR
ACTIVE
MSOP
DGS
10
2500
None
CU NIPDAU
Level-3-235C-168 HR
OPA2363IDGST
ACTIVE
MSOP
DGS
10
250
None
CU NIPDAU
Level-3-235C-168 HR
OPA2364AID
ACTIVE
SOIC
D
8
100
None
Call TI
Level-3-235C-168 HR
OPA2364AIDGKR
ACTIVE
MSOP
DGK
8
2500
None
CU NIPDAU
Level-1-220C-UNLIM
OPA2364AIDGKT
ACTIVE
MSOP
DGK
8
250
None
CU NIPDAU
Level-1-220C-UNLIM
OPA2364AIDR
ACTIVE
SOIC
D
8
2500
None
Call TI
Level-3-235C-168 HR
Lead/Ball Finish
MSL Peak Temp (3)
OPA2364ID
ACTIVE
SOIC
D
8
100
None
Call TI
Level-1-220C-UNLIM
OPA2364IDGKR
ACTIVE
MSOP
DGK
8
2500
None
CU NIPDAU
Level-1-220C-UNLIM
OPA2364IDGKT
ACTIVE
MSOP
DGK
8
250
None
CU NIPDAU
Level-1-220C-UNLIM
OPA2364IDR
ACTIVE
SOIC
D
8
2500
None
Call TI
Level-1-220C-UNLIM
OPA363AID
ACTIVE
SOIC
D
8
100
None
Call TI
Level-3-235C-168 HR
OPA363AIDBVR
ACTIVE
SOT-23
DBV
6
3000
None
Call TI
Level-3-250C-168 HR
OPA363AIDBVT
ACTIVE
SOT-23
DBV
6
250
None
Call TI
Level-3-250C-168 HR
OPA363AIDR
ACTIVE
SOIC
D
8
2500
None
Call TI
Level-3-235C-168 HR
OPA363ID
ACTIVE
SOIC
D
8
100
None
Call TI
Level-3-235C-168 HR
OPA363IDBVR
ACTIVE
SOT-23
DBV
6
3000
None
Call TI
Level-3-260C-168 HR
OPA363IDBVT
ACTIVE
SOT-23
DBV
6
250
None
Call TI
Level-3-260C-168 HR
OPA363IDR
ACTIVE
SOIC
D
8
2500
None
Call TI
Level-1-220C-UNLIM
OPA364AID
ACTIVE
SOIC
D
8
100
None
Call TI
Level-3-235C-168 HR
OPA364AIDBVR
ACTIVE
SOT-23
DBV
5
3000
None
CU NIPDAU
Level-3-220C-168 HR
OPA364AIDBVT
ACTIVE
SOT-23
DBV
5
250
None
CU NIPDAU
Level-3-220C-168 HR
OPA364AIDR
ACTIVE
SOIC
D
8
2500
None
Call TI
Level-3-235C-168 HR
OPA364ID
ACTIVE
SOIC
D
8
100
None
Call TI
Level-3-235C-168 HR
OPA364IDBVR
ACTIVE
SOT-23
DBV
5
3000
None
CU NIPDAU
Level-3-250C-168 HR
OPA364IDBVT
ACTIVE
SOT-23
DBV
5
250
None
CU NIPDAU
Level-3-250C-168 HR
OPA364IDR
ACTIVE
SOIC
D
8
2500
None
Call TI
Level-3-235C-168 HR
OPA4364AID
ACTIVE
SOIC
D
14
58
None
CU NIPDAU
Level-1-220C-UNLIM
OPA4364AIDR
ACTIVE
SOIC
D
14
2500
None
CU NIPDAU
Level-1-220C-UNLIM
OPA4364AIPWR
ACTIVE
TSSOP
PW
14
2500
None
CU NIPDAU
Level-3-235C-168 HR
OPA4364AIPWT
ACTIVE
TSSOP
PW
14
250
None
CU NIPDAU
Level-3-235C-168 HR
(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 - May not be currently available - please check http://www.ti.com/productcontent for the latest availability information and additional
product content details.
None: Not yet available Lead (Pb-Free).
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
Addendum-Page 1
PACKAGE OPTION ADDENDUM
www.ti.com
25-Jan-2005
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" and in addition, uses package materials that do not contain halogens,
including bromine (Br) or antimony (Sb) above 0.1% of total product weight.
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDECindustry standard classifications, and peak solder
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
MECHANICAL DATA
MTSS001C – JANUARY 1995 – REVISED FEBRUARY 1999
PW (R-PDSO-G**)
PLASTIC SMALL-OUTLINE PACKAGE
14 PINS SHOWN
0,30
0,19
0,65
14
0,10 M
8
0,15 NOM
4,50
4,30
6,60
6,20
Gage Plane
0,25
1
7
0°– 8°
A
0,75
0,50
Seating Plane
0,15
0,05
1,20 MAX
PINS **
0,10
8
14
16
20
24
28
A MAX
3,10
5,10
5,10
6,60
7,90
9,80
A MIN
2,90
4,90
4,90
6,40
7,70
9,60
DIM
4040064/F 01/97
NOTES: A.
B.
C.
D.
All linear dimensions are in millimeters.
This drawing is subject to change without notice.
Body dimensions do not include mold flash or protrusion not to exceed 0,15.
Falls within JEDEC MO-153
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
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