OPA337, OPA2337
OPA338, OPA2338
SBOS077B − JUNE 1997 − REVISED MARCH 2005
MicroSIZE, Single-Supply
CMOS OPERATIONAL AMPLIFIERS
MicroAmplifierE Series
FEATURES
DESCRIPTION
D MicroSIZE PACKAGES:
The OPA337 and OPA338 series rail-to-rail output CMOS
operational amplifiers are designed for low cost and
miniature applications. Packaged in the SOT23-8, the
OPA2337EA and OPA2338EA are Texas Instruments’
smallest dual op amps. At 1/4 the size of a conventional
SO-8 surface-mount, they are ideal for space-sensitive
applications.
SOT23-5, SOT23-8
D
D
D
D
SINGLE-SUPPLY OPERATION
D
D
D
D
OPERATION FROM 2.5V to 5.5V
RAIL-TO-RAIL OUTPUT SWING
FET-INPUT: IB = 10pA max
HIGH SPEED:
OPA337: 3MHz, 1.2V/µs (G = 1)
OPA338: 12.5MHz, 4.6V/µs (G = 5)
Utilizing advanced CMOS technology, the OPA337 and
OPA338 op amps provide low bias current, high-speed
operation, high open-loop gain, and rail-to-rail output
swing. They operate on a single supply with operation as
low as 2.5V while drawing only 525µA quiescent current.
In addition, the input common-mode voltage range
includes ground—ideal for single-supply operation.
HIGH OPEN-LOOP GAIN: 120dB
LOW QUIESCENT CURRENT: 525µA/amp
SINGLE AND DUAL VERSIONS
The OPA337 series is unity-gain stable. The OPA338 series
is optimized for gains greater than or equal to 5. They are
easy-to-use and free from phase inversion and overload
problems found in some other op amps. Excellent
performance is maintained as the amplifiers swing to their
specified limits. The dual versions feature completely
independent circuitry for lowest crosstalk and freedom from
interaction, even when overdriven or overloaded.
APPLICATIONS
D
D
D
D
D
D
D
BATTERY-POWERED INSTRUMENTS
PHOTODIODE PRE-AMPS
MEDICAL INSTRUMENTS
TEST EQUIPMENT
PACKAGE
SOT23-5
SOT23-8
MSOP-8
DRIVING ADCs
CONSUMER PRODUCTS
SPICE model available at www.ti.com.
SO-8
DIP-8
SINGLE
OPA337
DUAL
OPA2337
NC
1
8
NC
Out
1
−In
2
7
V+
V−
2
+In
3
6
Output
+In
3
V−
4
5
NC
SINGLE
OPA338
n
DUAL
OPA2338
n
n
n
n
n
n
n
n
OPA337, OPA338
OPA337, OPA338
n
n
OPA2337, OPA2338
5
V+
Out A
− In A
4
−In
1
2
+In A
3
V−
4
SOT23−5
DIP−8(1), SO−8, MSOP−8(1)
NC = No Connection
G ≥ 5 STABLE
G = 1 STABLE
AUDIO SYSTEMS
NOTE: (1) DIP AND MSOP−8 versions for OPA337, OPA2337 only.
A
B
8
V+
7
Out B
6
− In B
5
+In B
DIP−8(1) , SO−8, SOT23−8
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.
All trademarks are the property of their respective owners.
Copyright 1997-2005, Texas Instruments Incorporated
! !
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SBOS077B − JUNE 1997 − REVISED MARCH 2005
ABSOLUTE MAXIMUM RATINGS(1)
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.5V
Input Voltage(2) . . . . . . . . . . . . . . . . . . . . (V−) − 0.5V to (V+) + 0.5V
Input Current(2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10mA
Output Short Circuit(3) . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous
Operating Temperature . . . . . . . . . . . . . . . . . . . . . −55°C to +125°C
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . −55°C to +125°C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C
Lead Temperature (soldering, 10s) . . . . . . . . . . . . . . . . . . . . . 300°C
(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 supported.
(2) Input signal voltage is limited by internal diodes connected to
power supplies. See text.
(3) Short-circuit to ground, one amplifier per package.
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.
ORDERING INFORMATION(1)
PRODUCT
DESCRIPTION
SPECIFIED
TEMPERATURE
RANGE
PACKAGE-LEAD
PACKAGE
DESIGNATOR
PACKAGE
MARKING
SOT23-5
DBV
C37
MSOP-8
DGK
G37
DIP-8
P
OPA337PA
SO-8
Surface-Mount
D
OPA337UA
SOT23-8
DCN
A7
DIP-8
P
ORDERING
NUMBER
TRANSPORT
MEDIA, QUANTITY
OPA337 Series
OPA337
OPA2337
Single,
G = 1 Stable
Dual,
G = 1 Stable
−40°C
−40
C to +85
+85°C
C
−40°C
−40
C to +85
+85°C
C
OPA2337PA
SO-8
Surface-Mount
D
OPA2337UA
SOT23-5
DBV
A38
SO-8
Surface-Mount
D
OPA338UA
SOT23-8
DCN
A8
SO-8
Surface-Mount
D
OPA337NA/250
Tape and Reel, 250
OPA337NA/3K
Tape and Reel, 3000
OPA337EA/250
Tape and Reel, 250
OPA337EA/2K5
Tape and Reel, 2500
OPA337PA
Rails
OPA337UA
Rails
OPA337UA/2K5
Tape and Reel, 2500
OPA2337EA/250
Tape and Reel, 250
OPA2337EA/3K
Tape and Reel, 3000
OPA2337PA
Rails
OPA2337UA
Rails
OPA2337UA/2K5
Tape and Reel, 2500
OPA338 Series
OPA338
OPA2338
Single,
G ≥ 5 Stable
Dual,
G ≥ 5 Stable
−40°C to +85°C
−40°C to +85°C
OPA2338UA
OPA338NA/250
Tape and Reel, 250
OPA338NA/3K
Tape and Reel, 3000
OPA338UA
Rails
OPA338UA/2K5
Tape and Reel, 2500
OPA2338EA/250
Tape and Reel, 250
OPA2338EA/3K
Tape and Reel, 3000
OPA2338UA
Rails
OPA2338UA/2K5
Tape and Reel, 2500
(1) For the most current package and ordering information, see the Package Option Addendum located at the end of this data sheet.
2
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SBOS077B − JUNE 1997 − REVISED MARCH 2005
ELECTRICAL CHARACTERISTICS: VS = 2.7V to 5.5V
Boldface limits apply over the specified temperature range, −405C to +855C, VS = 5V.
At TA = +25°C and RL = 25kΩ connected to VS/2, unless otherwise noted.
PARAMETER
OFFSET VOLTAGE
Input Offset Voltage
TA = −40°C to +85°C
vs Temperature
vs Power-Supply Rejection Ratio
TA = −40°C to +85°C
Channel Separation (dual versions)
INPUT BIAS CURRENT
Input Bias Current
TA = −40°C to +85°C
Input Offset Current
NOISE
Input Voltage Noise, f = 0.1Hz to 10Hz
Input Voltage Noise Density, f = 1kHz
Current Noise Density, f = 1kHz
INPUT VOLTAGE RANGE
Common-Mode Voltage Range
Common-Mode Rejection Ratio
TA = −40°C to +85°C
CONDITION
OPA337, OPA2337,
OPA338, OPA2338
MIN
TYP(1)
MAX
±0.5
VOS
dVOS/dT
PSRR
±2
25
VS = 2.7V to 5.5V
VS = 2.7V to 5.5V
dc
±0.2
±10
See Typical Curve
±0.2
±10
IOS
TA = −40°C to +85°C
−0.2V < VCM < (V+) − 1.2V
−0.2V < VCM < (V+) − 1.2V
−0.2
74
74
TA = −40°C to +85°C
OPA337 FREQUENCY RESPONSE
Gain-Bandwidth Product
Slew Rate
Settling TIme: 0.1%
0.01%
Overload Recovery Time
Total Harmonic Distortion + Noise
OPA338 FREQUENCY RESPONSE
Gain-Bandwidth Product
Slew Rate
Settling TIme: 0.1%
0.01%
Overload Recovery Time
Total Harmonic Distortion + Noise
AOL
GBW
SR
THD+N
GBW
SR
THD+N
RL = 25kΩ, 125mV < VO < (V+) − 125mV
RL = 25kΩ, 125mV < VO < (V+) − 125mV
RL = 5kΩ, 500mV < VO < (V+) − 500mV
RL = 5kΩ, 500mV < VO < (V+) − 500mV
100
100
100
100
mV
mV
µV/°C
µV/V
µV/V
µV/V
pA
pA
µVPP
nV/√Hz
fA/√Hz
6
26
0.6
en
in
INPUT IMPEDANCE
Differential
Common-Mode
OPEN-LOOP GAIN
Open-Loop Voltage Gain
TA = −40°C to +85°C
125
125
0.3
IB
VCM
CMRR
±3
±3.5
UNIT
90
(V+) − 1.2
V
dB
dB
1013 2
1013 4
Ω pF
Ω pF
120
dB
dB
dB
dB
114
VS = 5V, G = 1
VS = 5V, G = 1
VS = 5V, 2V Step, CL = 100pF, G = 1
VS = 5V, 2V Step, CL = 100pF, G = 1
VIN × G = VS
VS = 5V, VO = 3VPP, G = 1, f = 1kHz
3
1.2
2
2.5
2
0.001
MHz
V/µs
µs
µs
µs
%
VS = 5V, G = 5
VS = 5V, G = 5
VS = 5V, 2V Step, CL = 100pF, G = 5
VS = 5V, 2V Step, CL = 100pF, G = 5
VIN × G = VS
VS = 5V, VO = 3VPP, G = 5, f = 1kHz
12.5
4.6
1.4
1.9
0.5
0.0035
MHz
V/µs
µs
µs
µs
%
(1) VS = 5V.
(2) Output voltage swings are measured between the output and negative and positive power-supply rails.
3
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SBOS077B − JUNE 1997 − REVISED MARCH 2005
ELECTRICAL CHARACTERISTICS: VS = 2.7V to 5.5V (continued)
Boldface limits apply over the specified temperature range, −405C to +855C, VS = 5V.
At TA = +25°C and RL = 25kΩ connected to VS/2, unless otherwise noted.
PARAMETER
CONDITION
OUTPUT
Voltage Output Swing from Rail(2)
TA = −40°C to +85°C
RL = 25kΩ, AOL ≥ 100dB
RL = 25kΩ, AOL ≥ 100dB
RL = 5kΩ, AOL ≥ 100dB
RL = 5kΩ, AOL ≥ 100dB
TA = −40°C to +85°C
Short-Circuit Current
Capacitive Load Drive
POWER SUPPLY
Specified Voltage Range
Minimum Operating Voltage
Quiescent Current (per amplifier)
TA = −40°C to +85°C
TEMPERATURE RANGE
Specified Range
Operating Range
Storage Range
Thermal Resistance
SOT23-5 Surface-Mount
SOT23-8 Surface-Mount
MSOP-8
SO-8 Surface-Mount
DIP-8
OPA337, OPA2337,
OPA338, OPA2338
MIN
TYP(1)
MAX
VS
IQ
TA = −40°C to +85°C
40
150
2.5
0.525
IO = 0
IO = 0
−40
−55
−55
qJA
(1) VS = 5V.
(2) Output voltage swings are measured between the output and negative and positive power-supply rails.
4
125
125
500
500
mV
mV
mV
mV
mA
5.5
1
1.2
V
V
mA
mA
+85
+125
+125
°C
°C
°C
±9
See Typical Curve
2.7
200
200
150
150
100
UNIT
°C/W
°C/W
°C/W
°C/W
°C/W
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SBOS077B − JUNE 1997 − REVISED MARCH 2005
TYPICAL CHARACTERISTICS
At TA = +25°C, VS = +5V, and RL = 25kΩ connected to VS/2, unless otherwise noted.
POWER−SUPPLY REJECTION RATIO AND
COMMON−MODE REJECTION RATIO vs FREQUENCY
OPEN−LOOP GAIN/PHASE vs FREQUENCY
OPA337
OPA338
140
−45
100
φ
−90
80
60
G
80
−135
40
20
PSRR, CMRR (dB)
120
+PSRR
90
Phase (_)
Open−Loop Gain (dB)
100
0
160
−PSRR
70
60
50
CMRR
40
30
−180
0
20
−20
1
10
100
1k
10k
100k
1M
10
10M
1
10
100
1k
Frequency (Hz)
INPUT VOLTAGE AND CURRENT NOISE
SPECTRAL DENSITY vs FREQUENCY
10
10
1
1
Current Noise
Channel Separation (dB)
100
Current Noise (fA√Hz)
Voltage Noise (nV√Hz)
Voltage Noise
10M
0.1
1k
10k
130
120
110
100
Dual Versions
90
0.1
100
1M
CHANNEL SEPARATION vs FREQUENCY
100
10
100k
140
1k
1k
1
10k
Frequency (Hz)
100k
80
100
1M
1k
10k
100k
1M
Frequency (Hz)
Frequency (Hz)
INPUT BIAS CURRENT vs TEMPERATURE
INPUT BIAS CURRENT
vs INPUT COMMON−MODE VOLTAGE
100
0.5
Input Bias Current (pA)
Input Bias Current (pA)
0.4
10
1
0.1
0.3
0.2
0.1
0
0.01
−75
−50
−25
0
25
50
Temperature (_C)
75
100
125
−0.1
−1
0
1
2
3
4
5
Common−Mode Voltage (V)
5
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SBOS077B − JUNE 1997 − REVISED MARCH 2005
TYPICAL CHARACTERISTICS (continued)
At TA = +25°C, VS = +5V, and RL = 25kΩ connected to VS/2, unless otherwise noted.
QUIESCENT CURRENT AND SHORT−CIRCUIT CURRENT
vs TEMPERATURE
AOL, CMRR, PSRR vs TEMPERATURE
600
120
550
120
110
110
PSRR (dB)
AOL, CMRR (dB)
AOL
100
PSRR
100
90
90
80
−50
−25
0
25
50
75
100
10
9
450
+ISC
400
8
350
7
6
300
125
−75
−50
−25
Temperature (_C)
600
±8
+ISC
±6
±4
IQ
±2
450
400
Output Voltage (VPP)
±10
3.5
4.0
4.5
5.0
OPA338
3
OPA337
2
0
10k
5.5
100k
1M
10M
OUTPUT VOLTAGE SWING vs OUTPUT CURRENT
2.5
0.1
VS = ±2.5V
RL Tied to Ground
2.0
Output Voltage (V)
THD+N (%)
1.5
G = +10, RL = 5kΩ, 25kΩ
G = +5, RL = 5kΩ, 25kΩ
G = +1
0.001
RL = 25kΩ
Sourcing
0.5
25_C
0
0.0001
20
100
1k
Frequency (Hz)
6
10k
20k
125_C
−0.5
−1.0
−55_ C
Sinking
−2.0
VO = 3VPP
−55_C
1.0
−1.5
OPA337
OPA338
100M
Frequency (Hz)
TOTAL HARMONIC DISTORTION + NOISE
vs FREQUENCY
RL = 5kΩ
125
4
Supply Voltage (V)
0.01
100
1
0
3.0
75
Maximum output
voltage without slew
rate−induced distortion.
5
Short−Circuit Current (mA)
Quiescent Current (µA)
650
2.5
50
6
±12
−ISC
25
MAXIMUM OUTPUT VOLTAGE vs FREQUENCY
700
500
0
Temperature (_C)
QUIESCENT AND SHORT−CIRCUIT CURRENT
vs SUPPLY VOLTAGE
550
11
−ISC
70
−75
IQ
500
CMRR
80
12
−2.5
0
±1
±2
±3
±4
±5
Output Current (mA)
±6
±7
±8
Short−Circuit Current (mA)
130
130
Quiescent Current (µA)
140
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TYPICAL CHARACTERISTICS (continued)
At TA = +25°C, VS = +5V, and RL = 25kΩ connected to VS/2, unless otherwise noted.
OFFSET VOLTAGE DRIFT
PRODUCTION DISTRIBUTION
OFFSET VOLTAGE
PRODUCTION DISTRIBUTION
30
25
Typical distribution
of packaged units.
25
20
Percent of Amplifiers (%)
Percent of Amplifiers (%)
Typical distribution
of packaged units.
15
10
5
20
15
10
5
0
0
3.0
2.5
2.0
1.5
1.0
0.5
0
−0.5
−1.0
−1.5
−2.0
−2.5
−3.0
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
Offset Voltage Drift (µV/_ C)
Offset Voltage (mV)
SMALL−SIGNAL OVERSHOOT vs LOAD CAPACITANCE
SETTLING TIME vs CLOSED−LOOP GAIN
60
100
50
OPA338
(G = ±5)
OPA338
OPA337
Overshoot (%)
10
40
OPA337
(G = ±1)
30
OPA337
(G = ±10)
20
OPA338
(G = ±50)
10
0.1%
0
1
1
10
100
1k
10
100
C L = 100pF
VS = +5V
1µs/div
C L = 100pF
VS = +5V
OPA338
G=5
500mV/div
OPA338
G=5
10k
LARGE−SIGNAL STEP RESPONSE
SMALL−SIGNAL STEP RESPONSE
OPA337
G=1
1k
Load Capacitance (pF)
Closed−Loop Gain (V/V)
50mV/div
Settling Time (µs)
0.01%
OPA337
G =1
2µs/div
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SBOS077B − JUNE 1997 − REVISED MARCH 2005
APPLICATIONS INFORMATION
The OPA337 and OPA338 series are fabricated on a
state-of-the-art CMOS process. The OPA337 series is
unity-gain stable. The OPA338 series is optimized for
gains greater than or equal to 5. Both are suitable for a
wide range of general-purpose applications. Powersupply pins should be bypassed with 0.01µF ceramic
capacitors.
Normally, input currents are 0.2pA. However, large inputs
(greater than 500mV beyond the supply rails) can cause
excessive current to flow in or out of the input pins.
Therefore, as well as keeping the input voltage below the
maximum rating, it is also important to limit the input
current to less than 10mA. This is easily accomplished
with an input resistor as shown in Figure 2.
OPERATING VOLTAGE
+5V
The OPA337 series and OPA338 series can operate from
a +2.5V to +5.5V single supply with excellent
performance. Unlike most op amps which are specified at
only one supply voltage, these op amps are specified for
real-world applications; a single limit applies throughout
the +2.7V to +5.5V supply range. This allows a designer
to have the same assured performance at any supply
voltage within the specified voltage range. Most behavior
remains unchanged throughout the full operating voltage
range. Parameters which vary significantly with operating
voltage are shown in the Typical Characteristic curves.
INPUT VOLTAGE
The input common-mode range extends from (V−) − 0.2V
to (V+) − 1.2V. For normal operation, inputs should be
limited to this range. The absolute maximum input voltage
is 500mV beyond the supplies. Inputs greater than the
input common-mode range but less than maximum input
voltage, while not valid, will not cause any damage to the
op amp. Furthermore, if input current is limited the inputs
may go beyond the power supplies without phase
inversion (as shown in Figure 1) unlike some other op
amps.
I OVERLOAD
10mA max
VOUT
OPA337
VIN
5kΩ
Figure 2. Input Current Protection for Voltages
Exceeding the Supply Voltage
USING THE OPA338 IN LOW GAINS
The OPA338 series is optimized for gains greater than or
equal to 5. It has significantly wider bandwidth (12.5MHz)
and faster slew rate (4.6V/µs) when compared to the
OPA337 series. The OPA338 series can be used in lower
gain configurations at low frequencies while maintaining
its high slew rate with the proper compensation.
Figure 3 shows the OPA338 in a unity-gain buffer
configuration. At dc, the compensation capacitor C1 is
effectively open resulting in 100% feedback (closed-loop
gain = 1). As frequency increases, C1 becomes lower
impedance and closed-loop gain increases, eventually
becoming 1 + R2/R1 (in this case 5, which is equal to the
minimum gain required for stability).
OPA337, VIN = ±3V Greater Than VS = ±2.5V
VOUT, G = −1
(not limited by
input common−
mode range)
3V
Improved slew rate (4.6V/µs) versus
OPA337 (1.2V/µs) in unity gain.
R1
2.5kΩ
C1
68pF
0V
G = ±1
−3V
OPA338
VOUT
VIN
VOUT, G = +1
(limited by input
common−mode
range)
Figure 1. OPA337—No Phase Inversion with
Inputs Greater than the Power-Supply Voltage
8
R2
10kΩ
C1 =
1
2πfCR1
Where f C is the frequency at which closed−loop
gains less than 5 are not appropriatesee text.
Figure 3. Compensation of the OPA338 for
Unity-Gain Buffer
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SBOS077B − JUNE 1997 − REVISED MARCH 2005
C1 = 1/(2πfCR1)
Since fC may shift with process variations, it is
recommended that a value less than fC be used for
determining C1. With fC = 1MHz and R1 = 2.5kΩ, the
compensation capacitor is about 68pF.
The selection of the compensation capacitor C1 is
important. A proper value ensures that the closed-loop
circuit gain is greater than or equal to 5 at high frequencies.
Referring to the Open-Loop Gain vs Frequency plot in the
Typical Characteristics section, the OPA338 gain line
(dashed in the curve) has a constant slope
(−20dB/decade) up to approximately 3MHz. This
frequency is referred to as fC. Beyond fC the slope of the
curve increases, suggesting that closed-loop gains less
than 5 are not appropriate.
Figure 4 shows a compensation technique using an
inverting configuration. The low-frequency gain is set by
the resistor ratio while the high-frequency gain is set by the
capacitor ratio. As with the noninverting circuit, for
frequencies above fC the gain must be greater than the
recommended minimum stable gain for the op amp.
C1 is determined from the desired high-frequency gain (GH):
C1 = (GH − 1) × C2
For a desired dc gain of 2 and high-frequency gain of 10,
the following resistor and capacitor values result:
R1 = 10kΩ
C1 = 150pF
R2 = 5kΩ
C2 = 15pF
The capacitor values shown are the nearest standard
values. Capacitor values may need to be adjusted slightly
to optimize performance. For more detailed information,
consult the section on Low Gain Compensation in the
OPA846 data sheet (SBOS250) located at www.ti.com.
Figure 5 shows the large-signal transient response using
the circuit given in Figure 4. As shown, the OPA338 is
stable in low gain applications and provides improved slew
rate performance when compared to the OPA337.
OPA338
500mV/div
The required compensation capacitor value can be
determined from the following equation:
OPA337
C2
15pF
Improved slew rate versus OPA337
(see Figure 5).
R1
5kΩ
R2
10kΩ
C1
150pF
OPA338
Time (2µs/div)
VIN
VOUT
Figure 5. G = 2, Slew-Rate Comparison of the
OPA338 and the OPA337
TYPICAL APPLICATION
C2 =
1
2πfCR2
, C1 = (GH − 1) × C2
Where GH is the high−frequency gain,
GH = 1 + C1/C2
Figure 4. Inverting Compensation Circuit of the
OPA338 for Low Gain
Resistors R1 and R2 are chosen to set the desired dc
signal gain. Then the value for C2 is determined as follows:
C2 = 1/(2πfCR2)
See Figure 6 for the OPA2337 in a typical application. The
ADS7822 is a 12-bit, micropower, sampling analog-todigital converter available in the tiny MSOP-8 package. As
with the OPA2337, it operates with a supply voltage as low
as +2.7V. When used with the miniature SOT23-8 package
of the OPA2337, the circuit is ideal for space-limited and
low-power applications. In addition, the OPA2337’s high
input impedance allows large value resistors to be used
which results in small physical capacitors, further reducing
circuit size. For further information, consult the ADS7822
data sheet (SBAS062) located at www.ti.com.
9
""#$
%""#
""&$
%""&
www.ti.com
SBOS077B − JUNE 1997 − REVISED MARCH 2005
V+ = +2.7V to 5V
R1
1.5kΩ
R9
510kΩ
R4
20kΩ
R2
1MΩ
C3
C1
1000pF
R7
51kΩ
1/2
OPA2337E
R3
1MΩ
Electret
Microphone(1)
Passband 300Hz to 3kHz
R8
150kΩ
33pF
1/2
OPA2337E
R6
100kΩ
C2
1000pF
VREF 1
+IN
2
−IN
ADS7822
12−Bit A/D
3
NOTE: (1) Electret microphone
with internal transistor (FET)
powered by R1.
R5
20kΩ
V+ 8
DCLOCK
7 D
OUT
6
Serial
Interface
CS/SHDN
5
GND 4
G = 100
Figure 6. Low-Power, Single-Supply, Speech Bandpass Filtered Data Acquisition System
SOT23−8
(Package Designator: DCN)
SOT23−5
(Package Designator: D)
0.075
(1.905)
0.0375
(0.9525)
0.0375
(0.9525)
0.10
(2.54)
0.10
(2.54)
0.035
(0.889)
0.035
(0.889)
0.027
(0.686)
0.018
(0.457)
For further information on solder
pads for surface−mount packages, consult Application Bulletin SBFA015A.
Figure 7. Recommended SOT23-5 and SOT23-8 Solder Footprints
10
0.026
(0.66)
PACKAGE OPTION ADDENDUM
www.ti.com
14-Oct-2022
PACKAGING INFORMATION
Orderable Device
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
(2)
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
Device Marking
(3)
Samples
(4/5)
(6)
OPA2337EA/250
ACTIVE
SOT-23
DCN
8
250
RoHS & Green
NIPDAU
Level-2-260C-1 YEAR
A7
Samples
OPA2337EA/3K
ACTIVE
SOT-23
DCN
8
3000
RoHS & Green
NIPDAU
Level-2-260C-1 YEAR
A7
Samples
OPA2337PA
ACTIVE
PDIP
P
8
50
RoHS & Green
NIPDAU
N / A for Pkg Type
OPA2337PA
Samples
OPA2337UA
ACTIVE
SOIC
D
8
75
RoHS & Green
NIPDAU
Level-2-260C-1 YEAR
OPA
2337UA
Samples
OPA2337UA/2K5
ACTIVE
SOIC
D
8
2500
RoHS & Green
NIPDAU
Level-2-260C-1 YEAR
-40 to 85
OPA
2337UA
Samples
OPA2337UA/2K5G4
ACTIVE
SOIC
D
8
2500
RoHS & Green
NIPDAU
Level-2-260C-1 YEAR
-40 to 85
OPA
2337UA
Samples
OPA2338EA/250
ACTIVE
SOT-23
DCN
8
250
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
A8
Samples
OPA2338EA/3K
ACTIVE
SOT-23
DCN
8
3000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
A8
Samples
OPA2338UA
ACTIVE
SOIC
D
8
75
RoHS & Green
NIPDAU
Level-2-260C-1 YEAR
OPA
2338UA
Samples
OPA2338UA/2K5
ACTIVE
SOIC
D
8
2500
RoHS & Green
NIPDAU
Level-2-260C-1 YEAR
-40 to 85
OPA
2338UA
Samples
OPA337EA/250
ACTIVE
VSSOP
DGK
8
250
RoHS & Green
Call TI | NIPDAUAG
Level-2-260C-1 YEAR
-40 to 85
G37
Samples
OPA337NA/250
ACTIVE
SOT-23
DBV
5
250
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
C37
Samples
OPA337NA/250G4
ACTIVE
SOT-23
DBV
5
250
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
C37
Samples
OPA337NA/3K
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
C37
Samples
OPA337NA/3KG4
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
C37
Samples
OPA337UA
ACTIVE
SOIC
D
8
75
RoHS & Green
NIPDAU
Level-2-260C-1 YEAR
-40 to 85
OPA
337UA
Samples
OPA337UA/2K5
ACTIVE
SOIC
D
8
2500
RoHS & Green
NIPDAU
Level-2-260C-1 YEAR
-40 to 85
OPA
337UA
Samples
OPA337UAG4
ACTIVE
SOIC
D
8
75
RoHS & Green
NIPDAU
Level-2-260C-1 YEAR
-40 to 85
OPA
337UA
Samples
Addendum-Page 1
-40 to 85
PACKAGE OPTION ADDENDUM
www.ti.com
14-Oct-2022
Orderable Device
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
(2)
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
Device Marking
(3)
Samples
(4/5)
(6)
OPA338NA/250
ACTIVE
SOT-23
DBV
5
250
RoHS & Green
NIPDAU
Level-2-260C-1 YEAR
-40 to 85
A38
Samples
OPA338NA/3K
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
NIPDAU
Level-2-260C-1 YEAR
-40 to 85
A38
Samples
OPA338UA
ACTIVE
SOIC
D
8
75
RoHS & Green
NIPDAU
Level-2-260C-1 YEAR
-40 to 85
OPA
338UA
Samples
OPA338UAG4
ACTIVE
SOIC
D
8
75
RoHS & Green
NIPDAU
Level-2-260C-1 YEAR
-40 to 85
OPA
338UA
Samples
(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)
RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance
do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may
reference these types of products as "Pb-Free".
RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.
Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of
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