OPA
434
2
OPA342
OPA2342
OPA4342
OPA
342
OPA
234
2
OPA
342
®
OPA
434
2
www.ti.com
Low-Cost, Low-Power, Rail-to-Rail
OPERATIONAL AMPLIFIERS
Micro
Amplifier
™
Series
FEATURES
q
q
q
q
q
q
LOW QUIESCENT CURRENT: 150
µ
A typ
RAIL-TO-RAIL INPUT
RAIL-TO-RAIL OUTPUT (within 1mV)
SINGLE SUPPLY CAPABILITY
LOW COST
Micro
SIZE PACKAGE OPTIONS:
SOT23-5
MSOP-8
TSSOP-14
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.
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.
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.
SINGLE
OPA342
DUAL
OPA2342
QUAD
OPA4342
q
BANDWIDTH: 1MHz
q
SLEW RATE: 1V/
µ
s
q
THD + NOISE: 0.006%
APPLICATIONS
q
q
q
q
q
q
q
q
COMMUNICATIONS
PCMCIA CARDS
DATA ACQUISITION
PROCESS CONTROL
AUDIO PROCESSING
ACTIVE FILTERS
TEST EQUIPMENT
CONSUMER ELECTRONICS
PACKAGE
SOT23-5
MSOP-8
SO-8
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: V
S
= 2.7V to 5.5V
At T
A
= +25°C, R
L
= 10kΩ connected to V
S
/2 and V
OUT
= V
S
/2, unless otherwise noted.
Boldface
limits apply over the temperature range, T
A
= –40°C to +85°C.
OPA342NA, UA
OPA2342EA, UA
OPA4342EA, UA, PA
PARAMETER
OFFSET VOLTAGE
Input Offset Voltage
T
A
= –40
°
C to +85
°
C
vs Temperature
vs Power Supply
T
A
= –40
°
C to +85
°
C
Channel Separation, dc
f = 1kHz
INPUT BIAS CURRENT
Input Bias Current
T
A
= –40
°
C to +85
°
C
Input Offset Current
NOISE
Input Voltage Noise, f = 0.1Hz to 50kHz
Input Voltage Noise Density, f = 1kHz
Current Noise Density, f = 1kHz
INPUT VOLTAGE RANGE
Common-Mode Voltage Range
Common-Mode Rejection Ratio
T
A
= –40
°
C to +85
°
C
Common-Mode Rejection Ratio
T
A
= –40
°
C to +85
°
C
Common-Mode Rejection Ratio
T
A
= –40
°
C to +85
°
C
INPUT IMPEDANCE
Differential
Common-Mode
OPEN-LOOP GAIN
Open-Loop Voltage Gain
T
A
= –40
°
C to +85
°
C
T
A
= –40
°
C to +85
°
C
FREQUENCY RESPONSE
Gain-Bandwidth Product
GBW
Slew Rate
SR
Settling Time, 0.1%
0.01%
Overload Recovery Time
Total Harmonic Distortion + Noise, f = 1kHz THD+N
OUTPUT
Voltage Output Swing from Rail
(2)
T
A
= –40
°
C to +85
°
C
T
A
= –40
°
C to +85
°
C
Short-Circuit Current
Capacitive Load Drive
POWER SUPPLY
Specified Voltage Range
Operating Voltage Range
Quiescent Current (per amplifier)
T
A
= –40
°
C to +85
°
C
TEMPERATURE RANGE
Specified Range
Operating Range
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
A
OL
R
L
= 100kΩ, 10mV < V
O
< (V+) – 10mV
R
L
= 100kΩ, 10mV < V
O
< (V+) – 10mV
R
L
= 5kΩ, 400mV < V
O
< (V+) – 400mV
R
L
= 5kΩ, 400mV < V
O
< (V+) – 400mV
C
L
= 100pF
G=1
V
S
= 5.5V, 2V Step
V
S
= 5.5V, 2V Step
V
IN
• G = V
S
V
S
= 5.5V, V
O
= 3Vp-p
(1)
, G = 1
R
L
= 100kΩ, A
OL
≥
96dB
R
L
= 100kΩ, A
OL
≥
104dB
R
L
= 100kΩ, A
OL
≥
100dB
R
L
= 5kΩ, A
OL
≥
96dB
R
L
= 5kΩ, A
OL
≥
90dB
Per Channel
104
100
96
90
V
OS
dV
OS
/dT
PSRR
CONDITION
V
CM
= V
S
/2
MIN
TYP
±1
±
1
±
3
30
0.2
132
I
B
I
OS
±0.2
See Typical Curve
±0.2
8
30
0.5
–0.3
76
74
66
64
62
60
(V+) + 0.3
88
78
74
±10
±10
MAX
±6
±
6
200
250
UNITS
mV
mV
µV/°C
µV/V
µ
V/V
µV/V
dB
pA
pA
pA
µVrms
nV/√Hz
fA/√Hz
V
dB
dB
dB
dB
dB
dB
Ω
|| pF
Ω
|| pF
dB
dB
dB
dB
MHz
V/µs
µs
µs
µs
%
mV
mV
mV
mV
mV
mA
V
S
= 2.7V to 5.5V, V
CM
< (V+) -1.8V
V
S
= 2.7V to 5.5V, V
CM
< (V+) -1.8V
e
n
i
n
V
CM
CMRR
CMRR
CMRR
V
S
= +5.5V, –0.3V < V
CM
< (V+) - 1.8
V
S
= +5.5V, –0.3V < V
CM
< (V+) - 1.8
V
S
= +5.5V, –0.3V < V
CM
< 5.8V
V
S
= +5.5V, –0.3V < V
CM
< 5.8V
V
S
= +2.7V, –0.3V < V
CM
< 3V
V
S
= +2.7V, –0.3V < V
CM
< 3V
10
13
|| 3
10
13
|| 6
124
114
1
1
5
8
2.5
0.006
1
3
20
±15
See Typical Curve
2.7
5.5
2.5 to 5.5
150
250
300
+85
+125
+150
200
150
150
100
100
100
10
10
400
400
I
SC
C
LOAD
V
S
I
Q
I
O
= 0A
V
V
µA
µ
A
°C
°C
°C
°C/W
°C/W
°C/W
°C/W
°C/W
°C/W
–40
–55
–65
θ
JA
NOTES: (1) V
OUT
= 0.25V to 3.25V. (2) Output voltage swings are measured between the output and power-supply rails.
2
OPA342, 2342, 4342
SBOS106A
ABSOLUTE MAXIMUM RATINGS
(1)
Supply Voltage, V+ to V- ................................................................... 7.5V
Signal Input Terminals, Voltage
(2)
..................... (V–) –0.5V to (V+) +0.5V
Current
(2)
.................................................... 10mA
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
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.
ELECTROSTATIC
DISCHARGE SENSITIVITY
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.
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.
PACKAGE/ORDERING INFORMATION
PACKAGE
DRAWING
NUMBER
331
SPECIFIED
TEMPERATURE
RANGE
–40°C to +85°C
PACKAGE
MARKING
B42
ORDERING
NUMBER
(1)
OPA342NA/250
OPA342NA /3K
OPA342UA
OPA342UA /2K5
OPA2342EA /250
OPA2342EA /2K5
OPA2342UA
OPA2342UA /2K5
OPA4342EA /250
OPA4342EA /2K5
OPA4342UA
OPA4342UA /2K5
OPA4342PA
TRANSPORT
MEDIA
Tape and Reel
Tape and Reel
Rails
Tape and Reel
Tape and Reel
Tape and Reel
Rails
Tape and Reel
Tape and Reel
Tape and Reel
Rails
Tape and Reel
Rails
PRODUCT
OPA342NA
PACKAGE
SOT23-5
"
OPA342UA
"
SO-8
"
182
"
–40°C to +85°C
"
OPA342UA
"
OPA2342EA
"
MSOP-8
"
337
"
–40°C to +85°C
"
C42
"
OPA2342UA
"
SO-8
"
182
"
–40°C to +85°C
"
OPA2342UA
"
OPA4342EA
"
TSSOP-14
"
357
"
–40°C to +85°C
"
OPA4342EA
"
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
Out
V–
+In
1
2
3
SOT23-5
4
–In
5
V+
OPA4342
Out A
–In A
+In A
+V
1
2
A
3
4
5
B
–In B
Out B
6
7
TSSOP-14, SO-14, DIP-14
C
9
8
–In C
Out C
D
12
11
10
+In D
–V
+In C
14
13
Out D
–In D
OPA342
NC
–In
+In
V–
1
2
3
4
SO-8
8
7
6
5
NC
V+
Out
NC
Out A
–In A
+In A
V–
1
2
3
4
OPA2342
+In B
8
A
B
7
6
5
SO-8, MSOP-8
V+
Out B
–In B
+In B
OPA342, 2342, 4342
SBOS106A
3
TYPICAL PERFORMANCE CURVES
At T
A
= +25°C, V
S
= +5V, and R
L
= 10kΩ connected to V
S
/2, unless otherwise noted.
OPEN-LOOP GAIN/PHASE vs FREQUENCY
120
100
80
Gain (dB)
POWER SUPPLY AND COMMON-MODE
REJECTION RATIO vs FREQUENCY
0
30
60
90
120
Phase (°)
100
+PSRR
80
Rejection Ratio (dB)
–PSRR
CMRR
Phase
60
60
40
Gain
20
0
0.1
1
10
100
1k
10k
100k
1M
Frequency (Hz)
40
150
180
10M
20
10
10
100
1k
Frequency (Hz)
10k
100k
MAXIMUM OUTPUT VOLTAGE vs FREQUENCY
6
Maximum Output Voltage (Vp-p)
CHANNEL SEPARATION vs FREQUENCY
140
V
S
= +5.5V
V
S
= +5V
Channel Separation (dB)
5
120
4
3
2
1
0
10k
100k
Frequency (Hz)
1M
V
S
= +2.7V
100
80
Dual and quad devices.
G = 1, all channels.
Quad measured channel
A to D or B to C—other
combinations yield improved
rejection.
100
1k
10k
Frequency (Hz)
100k
1M
60
VOLTAGE AND CURRENT NOISE
SPECTRAL DENSITY vs FREQUENCY
10000
100
1
TOTAL HARMONIC DISTORTION + NOISE
vs FREQUENCY
Voltage Noise (nV/√Hz)
1000
V
N
100
I
N
10
Current Noise (fA/√Hz)
0.1
THD+N (%)
1
0.010
10
1
10
100
1k
10k
100k
1M
Frequency (Hz)
0.1
10M
0.001
20
100
1k
Frequency (Hz)
10k
20k
4
OPA342, 2342, 4342
SBOS106A
TYPICAL PERFORMANCE CURVES
(Cont.)
At T
A
= +25°C, V
S
= +5V, and R
L
= 10kΩ connected to V
S
/2, unless otherwise noted.
OPEN-LOOP GAIN, COMMON-MODE REJECTION RATIO,
AND POWER SUPPLY REJECTION vs TEMPERATURE
140
A
OL
120
A
OL
, CMRR, PSRR (dB)
Input Bias Current (pA)
INPUT BIAS CURRENT vs TEMPERATURE
10000
1000
100
CMRR
80
60
40
20
0
–75
–50
–25
0
25
50
75
100
125
150
Temperature (°C)
PSRR
100
10
1
0.1
–75
–50
–25
0
25
50
75
100
125
Temperature (°C)
QUIESCENT CURRENT AND
SHORT-CIRCUIT CURRENT vs TEMPERATURE
200
175
I
Q
40
35
30
25
+I
SC
100
75
50
25
0
–75
–50
–25
0
25
50
75
100
Temperature (°C)
–I
SC
20
15
10
5
0
125
SLEW RATE vs TEMPERATURE
1.2
–SR
1
Short-Circuit Current (mA)
Quiescent Current (µA)
150
135
Slew Rate (V/µs)
0.8
0.6
0.4
0.2
0
–75
–50
–25
0
25
50
75
+SR
100
125
Temperature (°C)
INPUT BIAS CURRENT
vs COMMON-MODE VOLTAGE
6
4
QUIESCENT CURRENT AND
SHORT-CIRCUIT CURRENT vs SUPPLY VOLTAGE
160
+I
SC
Quiescent Current (µA)
20
Input Bias Current (pA)
2
0
–2
–4
–6
–1
0
V–
Supply
V+
Supply
155
15
150
–I
SC
10
I
Q
145
5
Input voltage
≤
–0.3V
can cause op amp output
to lock up. See text.
140
1
2
3
4
5
6
0
2
3
4
Supply Voltage (V)
5
6
Common-Mode Voltage (V)
OPA342, 2342, 4342
SBOS106A
5
Short-Circuit Current (mA)
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
