OPA4342 [TI]
四路、5.5V、1MHz、低偏置电流 (0.2pA)、RRIO 运算放大器;
| 型号： | OPA4342 |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | 四路、5.5V、1MHz、低偏置电流 (0.2pA)、RRIO 运算放大器 放大器 运算放大器 |
| 文件： | 总16页 (文件大小：468K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
OPA342
OPA2342
OPA4342
OPA4342
O
P
A
3
4
2
O
P
A
2
3
4
2
O
P
A
43
42
®
OPA342
www.ti.com
Low-Cost, Low-Power, Rail-to-Rail
OPERATIONAL AMPLIFIERS
™
MicroAmplifier Series
FEATURES
DESCRIPTION
The OPA342 series rail-to-rail CMOS operational
amplifiers are designed for low-cost, low-power, min-
iature applications. They are optimized to operate on
a single supply as low as 2.5V with an input common-
mode voltage range that extends 300mV beyond the
supplies.
ꢀ LOW QUIESCENT CURRENT: 150µA typ
ꢀ RAIL-TO-RAIL INPUT
ꢀ RAIL-TO-RAIL OUTPUT (within 1mV)
ꢀ SINGLE SUPPLY CAPABILITY
ꢀ LOW COST
ꢀ MicroSIZE PACKAGE OPTIONS:
SOT23-5
Rail-to-rail input/output and high-speed operation make
them ideal for driving sampling Analog-to-Digital Con-
verters (ADC). They are also well suited for general-
purpose and audio applications and providing I/V con-
version at the output of Digital-to-Analog Converters
(DAC). Single, dual, and quad versions have identical
specs for design flexibility.
MSOP-8
TSSOP-14
ꢀ BANDWIDTH: 1MHz
ꢀ SLEW RATE: 1V/µs
ꢀ THD + NOISE: 0.006%
The OPA342 series offers excellent dynamic response
with a quiescent current of only 250µA max. Dual and
quad designs feature completely independent circuitry
for lowest crosstalk and freedom from interaction.
APPLICATIONS
ꢀ COMMUNICATIONS
ꢀ PCMCIA CARDS
SINGLE
OPA342
DUAL
QUAD
ꢀ DATA ACQUISITION
ꢀ PROCESS CONTROL
ꢀ AUDIO PROCESSING
ꢀ ACTIVE FILTERS
ꢀ TEST EQUIPMENT
ꢀ CONSUMER ELECTRONICS
PACKAGE
SOT23-5
MSOP-8
SO-8
OPA2342
OPA4342
ꢀ
ꢀ
ꢀ
ꢀ
TSSOP-14
SO-14
ꢀ
ꢀ
ꢀ
DIP-14
SPICE MODEL available at www.burr-brown.com.
Copyright © 2000, Texas Instruments Incorporated
SBOS106A
Printed in U.S.A. August, 2000
SPECIFICATIONS: VS = 2.7V to 5.5V
At TA = +25°C, RL = 10kΩ connected to VS /2 and VOUT = VS /2, unless otherwise noted.
Boldface limits apply over the temperature range, TA = –40°C to +85°C.
OPA342NA, UA
OPA2342EA, UA
OPA4342EA, UA, PA
PARAMETER
CONDITION
MIN
TYP
MAX
UNITS
OFFSET VOLTAGE
Input Offset Voltage
TA = –40°C to +85°C
vs Temperature
VOS
VCM = VS /2
±1
±1
±3
30
±6
±6
mV
mV
dVOS/dT
PSRR
µV/°C
µV/V
µV/V
µV/V
dB
vs Power Supply
VS = 2.7V to 5.5V, VCM < (V+) -1.8V
VS = 2.7V to 5.5V, VCM < (V+) -1.8V
200
250
TA = –40°C to +85°C
Channel Separation, dc
f = 1kHz
0.2
132
INPUT BIAS CURRENT
Input Bias Current
TA = –40°C to +85°C
Input Offset Current
IB
±0.2
See Typical Curve
±0.2
±10
±10
pA
pA
pA
IOS
NOISE
Input Voltage Noise, f = 0.1Hz to 50kHz
Input Voltage Noise Density, f = 1kHz
Current Noise Density, f = 1kHz
8
30
0.5
µVrms
nV/√Hz
fA/√Hz
en
in
INPUT VOLTAGE RANGE
Common-Mode Voltage Range
Common-Mode Rejection Ratio
TA = –40°C to +85°C
Common-Mode Rejection Ratio
TA = –40°C to +85°C
VCM
CMRR
–0.3
76
74
66
64
(V+) + 0.3
V
VS = +5.5V, –0.3V < VCM < (V+) - 1.8
VS = +5.5V, –0.3V < VCM < (V+) - 1.8
VS = +5.5V, –0.3V < VCM < 5.8V
VS = +5.5V, –0.3V < VCM < 5.8V
VS = +2.7V, –0.3V < VCM < 3V
VS = +2.7V, –0.3V < VCM < 3V
88
78
74
dB
dB
dB
dB
dB
dB
CMRR
CMRR
Common-Mode Rejection Ratio
TA = –40°C to +85°C
62
60
INPUT IMPEDANCE
Differential
Common-Mode
1013 || 3
1013 || 6
Ω || pF
Ω || pF
OPEN-LOOP GAIN
Open-Loop Voltage Gain
TA = –40°C to +85°C
AOL
RL = 100kΩ, 10mV < VO < (V+) – 10mV
RL = 100kΩ, 10mV < VO < (V+) – 10mV
RL = 5kΩ, 400mV < VO < (V+) – 400mV
RL = 5kΩ, 400mV < VO < (V+) – 400mV
104
100
96
124
114
dB
dB
dB
dB
TA = –40°C to +85°C
90
FREQUENCY RESPONSE
Gain-Bandwidth Product
Slew Rate
Settling Time, 0.1%
0.01%
CL = 100pF
G = 1
GBW
SR
1
1
5
MHz
V/µs
µs
VS = 5.5V, 2V Step
VS = 5.5V, 2V Step
8
µs
Overload Recovery Time
Total Harmonic Distortion + Noise, f = 1kHz THD+N
VIN • G = VS
VS = 5.5V, VO = 3Vp-p(1), G = 1
2.5
0.006
µs
%
OUTPUT
Voltage Output Swing from Rail(2)
RL = 100kΩ, AOL ≥ 96dB
RL = 100kΩ, AOL ≥ 104dB
RL = 100kΩ, AOL ≥ 100dB
RL = 5kΩ, AOL ≥ 96dB
RL = 5kΩ, AOL ≥ 90dB
Per Channel
1
3
mV
mV
mV
mV
mV
mA
10
10
400
400
TA = –40°C to +85°C
TA = –40°C to +85°C
20
Short-Circuit Current
ISC
±15
Capacitive Load Drive
CLOAD
See Typical Curve
POWER SUPPLY
Specified Voltage Range
Operating Voltage Range
Quiescent Current (per amplifier)
TA = –40°C to +85°C
VS
IQ
2.7
5.5
V
V
µA
µA
2.5 to 5.5
150
IO = 0A
250
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
SO-8 Surface Mount
TSSOP-14 Surface Mount
SO-14 Surface Mount
DIP-14
θJA
200
150
150
100
100
100
°C/W
°C/W
°C/W
°C/W
°C/W
°C/W
NOTES: (1) VOUT = 0.25V to 3.25V. (2) Output voltage swings are measured between the output and power-supply rails.
OPA342, 2342, 4342
2
SBOS106A
ABSOLUTE MAXIMUM RATINGS(1)
ELECTROSTATIC
DISCHARGE SENSITIVITY
Supply Voltage, V+ to V- ................................................................... 7.5V
Signal Input Terminals, Voltage(2) .....................(V–) –0.5V to (V+) +0.5V
Current(2) .................................................... 10mA
This integrated circuit can be damaged by ESD. Burr-Brown
recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling
and installation procedures can cause damage.
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 Tolerance (Human Body Model) ............................................ 4000V
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. These are stress ratings only. Functional opera-
tion of the device at these conditions, or beyond the specified operating
conditions, 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
PACKAGE
DRAWING
NUMBER
SPECIFIED
TEMPERATURE
RANGE
PACKAGE
MARKING
ORDERING
NUMBER(1)
TRANSPORT
MEDIA
PRODUCT
PACKAGE
OPA342NA
SOT23-5
331
"
182
"
–40°C to +85°C
B42
"
OPA342UA
OPA342NA/250
OPA342NA/3K
OPA342UA
Tape and Reel
Tape and Reel
Rails
"
"
SO-8
"
"
OPA342UA
–40°C to +85°C
"
"
"
OPA342UA/2K5
Tape and Reel
OPA2342EA
MSOP-8
337
"
182
"
–40°C to +85°C
C42
"
OPA2342UA
OPA2342EA/250
OPA2342EA/2K5
OPA2342UA
Tape and Reel
Tape and Reel
Rails
"
"
SO-8
"
"
OPA2342UA
–40°C to +85°C
"
"
"
OPA2342UA/2K5
Tape and Reel
OPA4342EA
TSSOP-14
357
"
–40°C to +85°C
OPA4342EA
OPA4342EA/250
OPA4342EA/2K5
OPA4342UA
OPA4342UA/2K5
OPA4342PA
Tape and Reel
Tape and Reel
Rails
Tape and Reel
Rails
"
"
"
"
OPA4342UA
"
SO-14
"
235
"
–40°C to +85°C
"
OPA4342UA
"
OPA4342PA
DIP-14
010
–40°C to +85°C
OPA4342PA
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 “OPA342NA/3K” will get a single 3000-piece Tape and Reel.
PIN CONFIGURATIONS
OPA342
OPA4342
Out
V–
1
2
3
5
4
V+
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
+In
–In
A
B
D
C
SOT23-5
OPA342
OPA2342
+In B
–In B
Out B
10 +In C
NC
V+
NC
–In
+In
V–
1
2
3
4
8
7
6
5
Out A
1
8
7
6
5
V+
9
8
–In C
A
–In A
+In A
V–
2
3
4
Out B
–In B
+In B
Out C
B
Out
NC
TSSOP-14, SO-14, DIP-14
SO-8
SO-8, MSOP-8
OPA342, 2342, 4342
3
SBOS106A
TYPICAL PERFORMANCE CURVES
At TA = +25°C, VS = +5V, and RL = 10kΩ connected to VS/2, unless otherwise noted.
POWER SUPPLY AND COMMON-MODE
REJECTION RATIO vs FREQUENCY
OPEN-LOOP GAIN/PHASE vs FREQUENCY
100
80
60
40
20
10
120
100
80
60
40
20
0
0
+PSRR
30
CMRR
Phase
60
–PSRR
90
120
150
180
Gain
100
10
100
1k
10k
100k
0.1
1
10
1k
10k 100k
1M
10M
Frequency (Hz)
Frequency (Hz)
CHANNEL SEPARATION vs FREQUENCY
MAXIMUM OUTPUT VOLTAGE vs FREQUENCY
VS = +5.5V
140
120
100
80
6
5
4
3
2
1
0
VS = +5V
Dual and quad devices.
G = 1, all channels.
Quad measured channel
A to D or B to C—other
combinations yield improved
rejection.
VS = +2.7V
60
100
1k
10k
100k
1M
10k
100k
1M
Frequency (Hz)
Frequency (Hz)
VOLTAGE AND CURRENT NOISE
SPECTRAL DENSITY vs FREQUENCY
TOTAL HARMONIC DISTORTION + NOISE
vs FREQUENCY
10000
1000
100
100
10
1
1
0.1
IN
VN
0.010
0.001
10
0.1
1
10
100
1k
10k
100k
1M
10M
20
100
1k
10k 20k
Frequency (Hz)
Frequency (Hz)
OPA342, 2342, 4342
4
SBOS106A
TYPICAL PERFORMANCE CURVES (Cont.)
At TA = +25°C, VS = +5V, and RL = 10kΩ connected to VS/2, unless otherwise noted.
OPEN-LOOP GAIN, COMMON-MODE REJECTION RATIO,
AND POWER SUPPLY REJECTION vs TEMPERATURE
INPUT BIAS CURRENT vs TEMPERATURE
140
120
100
80
10000
1000
100
10
AOL
CMRR
PSRR
60
40
1
20
0
0.1
–75 –50 –25
0
25
50
75
100 125 150
–75
–50
–25
0
25
50
75
100
125
Temperature (°C)
Temperature (°C)
QUIESCENT CURRENT AND
SHORT-CIRCUIT CURRENT vs TEMPERATURE
SLEW RATE vs TEMPERATURE
1.2
1
200
175
150
135
100
75
40
35
30
25
20
15
10
5
–SR
IQ
0.8
0.6
0.4
0.2
0
+SR
+ISC
–ISC
50
25
0
0
–75 –50
–25
0
25
50
75
100
125
–75
–50
–25
0
25
50
75
100
125
Temperature (°C)
Temperature (°C)
QUIESCENT CURRENT AND
INPUT BIAS CURRENT
SHORT-CIRCUIT CURRENT vs SUPPLY VOLTAGE
vs COMMON-MODE VOLTAGE
160
155
150
145
140
20
6
+ISC
4
2
V–
Supply
V+
Supply
15
10
5
–ISC
0
IQ
–2
–4
–6
Input voltage ≤ –0.3V
can cause op amp output
to lock up. See text.
0
2
3
4
5
6
–1
0
1
2
3
4
5
6
Supply Voltage (V)
Common-Mode Voltage (V)
OPA342, 2342, 4342
5
SBOS106A
TYPICAL PERFORMANCE CURVES (Cont.)
At TA = +25°C, VS = +5V, and RL = 10kΩ connected to VS/2, unless otherwise noted.
OPEN-LOOP GAIN vs OUTPUT VOLTAGE SWING
OUTPUT VOLTAGE SWING vs OUTPUT CURRENT
V+
120
110
100
90
(V+) – 1
RL = 100kΩ
RL = 5kΩ
–40°C
–40°C
85°C
85°C
25°C
25°C
(V+) – 2
≈
≈
2
1
0
80
0
5
10
15
20
120
100
80
60
40
20
0
Output Current (mA)
Output Voltage Swing from Rail (mV)
OFFSET VOLTAGE
OFFSET VOLTAGE DRIFT
PRODUCTION DISTRIBUTION
PRODUCTION DISTRIBUTION
24
20
16
12
8
18
16
14
12
10
8
Typical production
distribution of
packaged units.
Typical production
distribution of
packaged units.
6
4
4
2
0
0
Offset Voltage Drift (µV/°C)
Offset Voltage (mV)
QUIESCENT CURRENT
PRODUCTION DISTRIBUTION
SETTLING TIME vs CLOSED-LOOP GAIN
24
20
16
12
8
400
350
300
250
200
150
100
50
0.01%
0.1%
4
0
0
1
10
100
1000
Closed-Loop Gain (V/V)
Quiescent Current (µA)
OPA342, 2342, 4342
6
SBOS106A
TYPICAL PERFORMANCE CURVES (Cont.)
At TA = +25°C, VS = +5V, and RL = 10kΩ connected to VS/2, unless otherwise noted.
LARGE-SIGNAL STEP RESPONSE
G = +1, RL = 10kΩ, CL = 100pF
SMALL-SIGNAL OVERSHOOT vs LOAD CAPACITANCE
50
45
40
35
G = +1
30
25
G = +5
G = –1
20
15
10
G = –5
5
0
1
10
100
1k
10k
5µs/div
Load Capacitance (pF)
SMALL-SIGNAL STEP RESPONSE
G = +1, RL = 10kΩ, CL = 100pF
5µs/div
OPA342, 2342, 4342
7
SBOS106A
OPERATING VOLTAGE
APPLICATIONS INFORMATION
OPA342 series op amps are unity gain stable and can operate
on a single supply, making them highly versatile and easy to
use.
OPA342 series op amps are fully specified and guaranteed
from +2.7V to +5.5V. In addition, many specifications apply
from –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 significantly increases
dynamic range, especially in low supply applications. Figure
1 shows the input and output waveforms for the OPA342 in
unity-gain configuration. Operation is from VS = +5V with
a 10kΩ load connected to VS/2. The input is a 5Vp-p
sinusoid. Output voltage is approximately 4.997Vp-p.
RAIL-TO-RAIL INPUT
The input common-mode voltage range of the OPA342
series extends 300mV beyond the supply rails. This is
achieved with a complementary input stage—an N-channel
input differential pair in parallel with a P-channel differen-
tial pair (see Figure 2). The N-channel pair is active for input
voltages close to the positive rail, typically (V+) – 1.3V to
300mV above the positive supply, while the P-channel pair
is on for inputs from 300mV below the negative supply to
approximately (V+) –1.3V. There is a small transition re-
gion, typically (V+) – 1.5V to (V+) – 1.1V, in which both
pairs are on. This 400mV transition region can vary 300mV
with process variation. Thus, the transition region (both
stages on) can range from (V+) – 1.8V to (V+) – 1.4V on the
low end, up to (V+) – 1.2V to (V+) – 0.8V on the high end.
Within the 400mV transition region PSRR, CMRR, offset
voltage, offset drift, and THD may be degraded compared to
operation outside this region. For more information on
designing with rail-to-rail input op amps, see Figure 3
“Design Optimization with Rail-to-Rail Input Op Amps.”
Power supply pins should be by passed with 0.01µF ceramic
capacitors.
G = +1, VS = +5V
Input
5V
0V
Output (inverted on scope)
5µs/div
FIGURE 1. Rail-to-Rail Input and Output.
V+
Reference
Current
VIN+
VIN–
VBIAS1
Class AB
Control
VO
Circuitry
VBIAS2
V–
(Ground)
FIGURE 2. Simplified Schematic.
8
OPA342, 2342, 4342
SBOS106A
DESIGN OPTIMIZATION WITH RAIL-TO-RAIL INPUT OP AMPS
Rail-to-rail op amps can be used in virtually any op amp
With a unity-gain buffer, for example, signals will traverse
this transition at approximately 1.3V below V+ supply
and may exhibit a small discontinuity at this point.
configuration. To achieve optimum performance, how-
ever, applications using these special double-input-stage
op amps may benefit from consideration of their special
behavior.
The common-mode voltage of the non-inverting ampli-
fier is equal to the input voltage. If the input signal always
remains less than the transition voltage, no discontinuity
will be created. The closed-loop gain of this configura-
tion can still produce a rail-to-rail output.
In many applications, operation remains within the com-
mon-mode range of only one differential input pair.
However some applications exercise the amplifier through
the transition region of both differential input stages.
Although the two input stages are laser trimmed for
excellent matching, a small discontinuity may occur in
this transition. Careful selection of the circuit configura-
tion, signal levels and biasing can often avoid this transi-
tion region.
Inverting amplifiers have a constant common-mode volt-
age equal to VB. If this bias voltage is constant, no
discontinuity will be created. The bias voltage can gener-
ally be chosen to avoid the transition region.
G = 1 Buffer
Non-Inverting Gain
Inverting Amplifier
V+
V+
V+
VB
VIN
VO
VO
VO
VIN
VIN
VB
V
V
CM = VIN = VO
V
CM = VIN
CM = VB
FIGURE 3. Design Optimization with Rail-to-Rail Input Op Amps.
COMMON-MODE REJECTION
between V+ and ground. For light resistive loads (> 50kΩ),
the output voltage can typically swing to within 1mV from
supply rail. With moderate resistive loads (2kΩ to 50kΩ),
the output can swing to within a few tens of milli-volts from
the supply rails while maintaining high open-loop gain. See
the typical performance curve “Output Voltage Swing vs
Output Current.”
The CMRR for the OPA342 is specified in several ways so
the best match for a given application may be used. First, the
CMRR of the device in the common-mode range below the
transition region (VCM < (V+) – 1.8V) is given. This speci-
fication is the best indicator of the capability of the device
when the application requires use of one of the differential
input pairs. Second, the CMRR at VS = 5.5V over the entire
common-mode range is specified. Third, the CMRR at VS =
2.7V over the entire common-mode range is provided. These
last two values include the variations seen through the
transition region.
V+
IOVERLOAD
10mA max
VOUT
OPA342
INPUT VOLTAGE BEYOND THE RAILS
VIN
1kΩ
If the input voltage can go more than 0.3V below the
negative power supply rail (single-supply ground), special
precautions are required. If the input voltage goes suffi-
ciently negative, the op amp output may lock up in an
inoperative state. A Schottky diode clamp circuit will pre-
vent this—see Figure 4. The series resistor prevents exces-
sive current (greater than 10mA) in the Schottky diode and
in the internal ESD protection diode, if the input voltage can
exceed the positive supply voltage. If the signal source is
limited to less than 10mA, the input resistor is not required.
IN5818
Schottky diode is required only
if input voltage can go more
than 0.3V below ground.
FIGURE 4. Input Current Protection for Voltages Exceed-
ing the Supply Voltage.
CAPACITIVE LOAD AND STABILITY
RAIL-TO-RAIL OUTPUT
The OPA342 in a unity-gain configuration can directly drive
up to 250pF pure capacitive load. Increasing the gain en-
hances the amplifier’s ability to drive greater capacitive
loads. See the typical performance curve “Small-Signal
A class AB output stage with common-source transistors is
used to achieve rail-to-rail output. This output stage is
capable of driving 600Ω loads connected to any potential
OPA342, 2342, 4342
9
SBOS106A
Overshoot vs Capacitive Load.” In unity-gain configura-
tions, capacitive load drive can be improved by inserting a
small (10Ω to 20Ω) resistor, RS, in series with the output, as
shown in Figure 5. This significantly reduces ringing while
maintaining dc performance for purely capacitive loads.
However, if there is a resistive load in parallel with the
capacitive load, a voltage divider is created, introducing a dc
error at the output and slightly reducing the output swing.
The error introduced is proportional to the ratio RS/RL, and
DRIVING A/D CONVERTERS
The OPA342 series op amps are optimized for driving
medium-speed sampling ADCs. The OPA342 op amps buffer
the ADC’s input capacitance and resulting charge injection
while providing signal gain.
Figures 6 shows the OPA342 in a basic noninverting con-
figuration driving the ADS7822. The ADS7822 is a 12-bit,
micro-power sampling converter in the MSOP-8 package.
When used with the low-power, miniature packages of the
OPA342, the combination is ideal for space-limited, low-
power applications. In this configuration, an RC network at
the ADC’s input can be used to filter charge injection.
is generally negligible.
V+
Figure 7 shows the OPA2342 driving an ADS7822 in a
speech bandpass filtered data acquisition system. This small,
low-cost solution provides the necessary amplification and
signal conditioning to interface directly with an electret
microphone. This circuit will operate with VS = +2.7V to
RS
VOUT
OPA342
10Ω to
20Ω
VIN
CL
RL
+5V with less than 500µA quiescent current.
FIGURE 5. Series Resistor in Unity-Gain Configuration
Improves Capacitive Load Drive.
+5V
0.1µF
0.1µF
1
VREF
8
V+
7
6
5
DCLOCK
DOUT
500Ω
+In
2
Serial
Interface
ADS7822
12-Bit A/D
OPA342
VIN
–In
CS/SHDN
3
3300pF
GND
4
VIN = 0V to 5V for
0V to 5V output.
NOTE: A/D Input = 0 to VREF
RC network filters high frequency noise.
FIGURE 6. OPA342 in Noninverting Configuration Driving ADS7822.
V+ = +2.7V to 5V
Passband 300Hz to 3kHz
R9
510kΩ
R1
R4
R2
1.5kΩ
20kΩ
1MΩ
C3
C
1
33pF
1000pF
R7
51kΩ
R8
150kΩ
V
8
+
1
VREF
1/2
7
6
DCLOCK
DOUT
OPA2342
+IN
2
–IN
1/2
OPA2342
R3
1MΩ
ADS7822
12-Bit A/D
Electret
Microphone(1)
Serial
Interface
R6
100kΩ
1000pF
C2
5
CS/SHDN
3
4
G = 100
NOTE: (1) Electret microphone
powered by R1.
R5
20kΩ
GND
FIGURE 7. Speech Bandpass Filtered Data Acquisition System.
10
OPA342, 2342, 4342
SBOS106A
PACKAGE OPTION ADDENDUM
www.ti.com
14-Oct-2022
PACKAGING INFORMATION
Orderable Device
Status Package Type Package Pins Package
Eco Plan
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
Device Marking
Samples
Drawing
Qty
(1)
(2)
(3)
(4/5)
(6)
OPA2342EA/250
OPA2342EA/2K5
OPA2342UA
ACTIVE
ACTIVE
ACTIVE
VSSOP
VSSOP
SOIC
DGK
DGK
D
8
8
8
250
RoHS & Green Call TI | NIPDAUAG
Level-2-260C-1 YEAR
Level-2-260C-1 YEAR
Level-2-260C-1 YEAR
-40 to 85
-40 to 85
-40 to 85
C42
C42
OPA
Samples
Samples
Samples
2500 RoHS & Green Call TI | NIPDAUAG
75
2500 RoHS & Green
250 RoHS & Green
RoHS & Green
NIPDAU
NIPDAU
2342UA
OPA2342UA/2K5
ACTIVE
SOIC
D
8
Level-2-260C-1 YEAR
-40 to 85
OPA
2342UA
Samples
OPA342NA/250
OPA342NA/3K
OPA342NA/3KG4
OPA342UA
ACTIVE
ACTIVE
ACTIVE
ACTIVE
SOT-23
SOT-23
SOT-23
SOIC
DBV
DBV
DBV
D
5
5
5
8
NIPDAU
NIPDAU
NIPDAU
NIPDAU
Level-2-260C-1 YEAR
Level-2-260C-1 YEAR
Level-2-260C-1 YEAR
Level-2-260C-1 YEAR
-40 to 85
-40 to 85
-40 to 85
-40 to 85
B42
B42
B42
Samples
Samples
Samples
Samples
3000 RoHS & Green
3000 RoHS & Green
75
75
RoHS & Green
RoHS & Green
RoHS & Green
OPA
342UA
OPA342UAG4
ACTIVE
ACTIVE
SOIC
D
8
NIPDAU
NIPDAU
Level-2-260C-1 YEAR
Level-2-260C-1 YEAR
-40 to 85
-40 to 85
OPA
342UA
Samples
Samples
OPA4342EA/250
TSSOP
PW
14
250
OPA
4342EA
OPA4342UA
ACTIVE
ACTIVE
SOIC
SOIC
D
D
14
14
50
50
RoHS & Green
RoHS & Green
NIPDAU
NIPDAU
Level-2-260C-1 YEAR
Level-2-260C-1 YEAR
-40 to 85
-40 to 85
OPA4342UA
Samples
Samples
OPA4342UAG4
OPA4342UA
(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 <=1000ppm threshold. Antimony trioxide based
flame retardants must also meet the <=1000ppm threshold requirement.
Addendum-Page 1
PACKAGE OPTION ADDENDUM
www.ti.com
14-Oct-2022
(3) MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
(4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device.
(5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation
of the previous line and the two combined represent the entire Device Marking for that device.
(6)
Lead finish/Ball material - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead finish/Ball material values may wrap to two
lines if the finish value exceeds the maximum column width.
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
PACKAGE MATERIALS INFORMATION
www.ti.com
3-Jun-2022
TAPE AND REEL INFORMATION
REEL DIMENSIONS
TAPE DIMENSIONS
K0
P1
W
B0
Reel
Diameter
Cavity
A0
A0 Dimension designed to accommodate the component width
B0 Dimension designed to accommodate the component length
K0 Dimension designed to accommodate the component thickness
Overall width of the carrier tape
W
P1 Pitch between successive cavity centers
Reel Width (W1)
QUADRANT ASSIGNMENTS FOR PIN 1 ORIENTATION IN TAPE
Sprocket Holes
Q1 Q2
Q3 Q4
Q1 Q2
Q3 Q4
User Direction of Feed
Pocket Quadrants
*All dimensions are nominal
Device
Package Package Pins
Type Drawing
SPQ
Reel
Reel
A0
B0
K0
P1
W
Pin1
Diameter Width (mm) (mm) (mm) (mm) (mm) Quadrant
(mm) W1 (mm)
OPA2342UA/2K5
OPA342NA/250
OPA342NA/3K
OPA4342EA/250
SOIC
D
8
5
2500
250
330.0
178.0
178.0
180.0
12.4
8.4
6.4
3.3
3.3
6.9
5.2
3.2
3.2
5.6
2.1
1.4
1.4
1.6
8.0
4.0
4.0
8.0
12.0
8.0
Q1
Q3
Q3
Q1
SOT-23
SOT-23
TSSOP
DBV
DBV
PW
5
3000
250
8.4
8.0
14
12.4
12.0
Pack Materials-Page 1
PACKAGE MATERIALS INFORMATION
www.ti.com
3-Jun-2022
TAPE AND REEL BOX DIMENSIONS
Width (mm)
H
W
L
*All dimensions are nominal
Device
Package Type Package Drawing Pins
SPQ
Length (mm) Width (mm) Height (mm)
OPA2342UA/2K5
OPA342NA/250
OPA342NA/3K
OPA4342EA/250
SOIC
D
8
5
2500
250
356.0
445.0
445.0
210.0
356.0
220.0
220.0
185.0
35.0
345.0
345.0
35.0
SOT-23
SOT-23
TSSOP
DBV
DBV
PW
5
3000
250
14
Pack Materials-Page 2
PACKAGE MATERIALS INFORMATION
www.ti.com
3-Jun-2022
TUBE
T - Tube
height
L - Tube length
W - Tube
width
B - Alignment groove width
*All dimensions are nominal
Device
Package Name Package Type
Pins
SPQ
L (mm)
W (mm)
T (µm)
B (mm)
OPA2342UA
OPA342UA
D
D
D
D
D
SOIC
SOIC
SOIC
SOIC
SOIC
8
8
75
75
75
50
50
506.6
506.6
506.6
506.6
506.6
8
8
8
8
8
3940
3940
3940
3940
3940
4.32
4.32
4.32
4.32
4.32
OPA342UAG4
OPA4342UA
OPA4342UAG4
8
14
14
Pack Materials-Page 3
IMPORTANT NOTICE AND DISCLAIMER
TI PROVIDES TECHNICAL AND RELIABILITY DATA (INCLUDING DATA SHEETS), DESIGN RESOURCES (INCLUDING REFERENCE
DESIGNS), APPLICATION OR OTHER DESIGN ADVICE, WEB TOOLS, SAFETY INFORMATION, AND OTHER RESOURCES “AS IS”
AND WITH ALL FAULTS, AND DISCLAIMS ALL WARRANTIES, EXPRESS AND IMPLIED, INCLUDING WITHOUT LIMITATION ANY
IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT OF THIRD
PARTY INTELLECTUAL PROPERTY RIGHTS.
These resources are intended for skilled developers designing with TI products. You are solely responsible for (1) selecting the appropriate
TI products for your application, (2) designing, validating and testing your application, and (3) ensuring your application meets applicable
standards, and any other safety, security, regulatory or other requirements.
These resources are subject to change without notice. TI grants you permission to use these resources only for development of an
application that uses the TI products described in the resource. Other reproduction and display of these resources is prohibited. No license
is granted to any other TI intellectual property right or to any third party intellectual property right. TI disclaims responsibility for, and you
will fully indemnify TI and its representatives against, any claims, damages, costs, losses, and liabilities arising out of your use of these
resources.
TI’s products are provided subject to TI’s Terms of Sale or other applicable terms available either on ti.com or provided in conjunction with
such TI products. TI’s provision of these resources does not expand or otherwise alter TI’s applicable warranties or warranty disclaimers for
TI products.
TI objects to and rejects any additional or different terms you may have proposed. IMPORTANT NOTICE
Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265
Copyright © 2022, Texas Instruments Incorporated
相关型号：
SI9130DB
5- and 3.3-V Step-Down Synchronous ConvertersWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9135LG-T1
SMBus Multi-Output Power-Supply ControllerWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9135LG-T1-E3
SMBus Multi-Output Power-Supply ControllerWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9135_11
SMBus Multi-Output Power-Supply ControllerWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9136_11
Multi-Output Power-Supply ControllerWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9130CG-T1-E3
Pin-Programmable Dual Controller - Portable PCsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9130LG-T1-E3
Pin-Programmable Dual Controller - Portable PCsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9130_11
Pin-Programmable Dual Controller - Portable PCsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9137
Multi-Output, Sequence Selectable Power-Supply Controller for Mobile ApplicationsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9137DB
Multi-Output, Sequence Selectable Power-Supply Controller for Mobile ApplicationsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9137LG
Multi-Output, Sequence Selectable Power-Supply Controller for Mobile ApplicationsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
SI9122E
500-kHz Half-Bridge DC/DC Controller with Integrated Secondary Synchronous Rectification DriversWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
VISHAY
©2020 ICPDF网 联系我们和版权申明