Low-Cost, Low-Power, Rail-to-Rail
OPERATIONAL AMPLIFIERS
Micro
Amplifier
TM
Series
FEATURES
q
LOW QUIESCENT CURRENT: 150
A typ
q
RAIL-TO-RAIL INPUT
q
RAIL-TO-RAIL OUTPUT (within 1mV)
q
SINGLE SUPPLY CAPABILITY
q
LOW COST
q
Micro
SIZE PACKAGE OPTIONS:
SOT23-5
MSOP-8
TSSOP-14
q
BANDWIDTH: 1MHz
q
SLEW RATE: 1V/
s
q
THD + NOISE: 0.006%
APPLICATIONS
q
COMMUNICATIONS
q
PCMCIA CARDS
q
DATA ACQUISITION
q
PROCESS CONTROL
q
AUDIO PROCESSING
q
ACTIVE FILTERS
q
TEST EQUIPMENT
q
CONSUMER ELECTRONICS
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 250
A max. Dual and
quad designs feature completely independent circuitry
for lowest crosstalk and freedom from interaction.
OPA342
OPA2342
OPA4342
OPA3
42
OPA3
42
OPA2
342
OPA4
342
OPA
4342
SINGLE
DUAL
QUAD
PACKAGE
OPA342
OPA2342
OPA4342
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
www.ti.com
OPA342, 2342, 4342
2
SBOS106A
SPECIFICATIONS: V
S
= 2.7V to 5.5V
At T
A
= +25
C, R
L
= 10k
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
CONDITION
MIN
TYP
MAX
UNITS
OFFSET VOLTAGE
Input Offset Voltage
V
OS
V
CM
= V
S
/2
1
6
mV
T
A
= 40
C to +85
C
1
6
mV
vs Temperature
dV
OS
/dT
3
V/
C
vs Power Supply
PSRR
V
S
= 2.7V to 5.5V, V
CM
< (V+) -1.8V
30
200
V/V
T
A
= 40
C to +85
C
V
S
= 2.7V to 5.5V, V
CM
< (V+) -1.8V
250
V/V
Channel Separation, dc
0.2
V/V
f = 1kHz
132
dB
INPUT BIAS CURRENT
Input Bias Current
I
B
0.2
10
pA
T
A
= 40
C to +85
C
See Typical Curve
pA
Input Offset Current
I
OS
0.2
10
pA
NOISE
Input Voltage Noise, f = 0.1Hz to 50kHz
8
Vrms
Input Voltage Noise Density, f = 1kHz
e
n
30
nV/
Hz
Current Noise Density, f = 1kHz
i
n
0.5
fA/
Hz
INPUT VOLTAGE RANGE
Common-Mode Voltage Range
V
CM
0.3
(V+) + 0.3
V
Common-Mode Rejection Ratio
CMRR
V
S
= +5.5V, 0.3V
< V
CM
< (V+) - 1.8
76
88
dB
T
A
= 40
C to +85
C
V
S
= +5.5V, 0.3V
< V
CM
< (V+) - 1.8
74
dB
Common-Mode Rejection Ratio
CMRR
V
S
= +5.5V, 0.3V
< V
CM
< 5.8V
66
78
dB
T
A
= 40
C to +85
C
V
S
= +5.5V, 0.3V
< V
CM
< 5.8V
64
dB
Common-Mode Rejection Ratio
CMRR
V
S
= +2.7V, 0.3V
< V
CM
< 3V
62
74
dB
T
A
= 40
C to +85
C
V
S
= +2.7V, 0.3V
< V
CM
< 3V
60
dB
INPUT IMPEDANCE
Differential
10
13
|| 3
|| pF
Common-Mode
10
13
|| 6
|| pF
OPEN-LOOP GAIN
Open-Loop Voltage Gain
A
OL
R
L
= 100k
, 10mV < V
O
< (V+) 10mV
104
124
dB
T
A
= 40
C to +85
C
R
L
= 100k
, 10mV < V
O
< (V+) 10mV
100
dB
R
L
= 5k
, 400mV < V
O
< (V+) 400mV
96
114
dB
T
A
= 40
C to +85
C
R
L
= 5k
, 400mV < V
O
< (V+) 400mV
90
dB
FREQUENCY RESPONSE
C
L
= 100pF
Gain-Bandwidth Product
GBW
G = 1
1
MHz
Slew Rate
SR
1
V/
s
Settling Time, 0.1%
V
S
= 5.5V, 2V Step
5
s
0.01%
V
S
= 5.5V, 2V Step
8
s
Overload Recovery Time
V
IN
G = V
S
2.5
s
Total Harmonic Distortion + Noise, f = 1kHz THD+N
V
S
= 5.5V, V
O
= 3Vp-p
(1)
, G = 1
0.006
%
OUTPUT
Voltage Output Swing from Rail
(2)
R
L
= 100k
, A
OL
96dB
1
mV
R
L
= 100k
,
A
OL
104dB
3
10
mV
T
A
= 40
C to +85
C
R
L
= 100k
,
A
OL
100dB
10
mV
R
L
= 5k
, A
OL
96dB
20
400
mV
T
A
= 40
C to +85
C
R
L
= 5k
,
A
OL
90dB
400
mV
Short-Circuit Current
I
SC
Per Channel
15
mA
Capacitive Load Drive
C
LOAD
See Typical Curve
POWER SUPPLY
Specified Voltage Range
V
S
2.7
5.5
V
Operating Voltage Range
2.5 to 5.5
V
Quiescent Current (per amplifier)
I
Q
I
O
= 0A
150
250
A
T
A
= 40
C to +85
C
300
A
TEMPERATURE RANGE
Specified Range
40
+85
C
Operating Range
55
+125
C
Storage Range
65
+150
C
Thermal Resistance
JA
SOT23-5 Surface Mount
200
C/W
MSOP-8 Surface Mount
150
C/W
SO-8 Surface Mount
150
C/W
TSSOP-14 Surface Mount
100
C/W
SO-14 Surface Mount
100
C/W
DIP-14
100
C/W
NOTES: (1) V
OUT
= 0.25V to 3.25V. (2) Output voltage swings are measured between the output and power-supply rails.
OPA342, 2342, 4342
3
SBOS106A
PACKAGE
SPECIFIED
DRAWING
TEMPERATURE
PACKAGE
ORDERING
TRANSPORT
PRODUCT
PACKAGE
NUMBER
RANGE
MARKING
NUMBER
(1)
MEDIA
OPA342NA
SOT23-5
331
40
C to +85
C
B42
OPA342NA/250
Tape and Reel
"
"
"
"
"
OPA342NA /3K
Tape and Reel
OPA342UA
SO-8
182
40
C to +85
C
OPA342UA
OPA342UA
Rails
"
"
"
"
"
OPA342UA /2K5
Tape and Reel
OPA2342EA
MSOP-8
337
40
C to +85
C
C42
OPA2342EA /250
Tape and Reel
"
"
"
"
"
OPA2342EA /2K5
Tape and Reel
OPA2342UA
SO-8
182
40
C to +85
C
OPA2342UA
OPA2342UA
Rails
"
"
"
"
"
OPA2342UA /2K5
Tape and Reel
OPA4342EA
TSSOP-14
357
40
C to +85
C
OPA4342EA
OPA4342EA /250
Tape and Reel
"
"
"
"
"
OPA4342EA /2K5
Tape and Reel
OPA4342UA
SO-14
235
40
C to +85
C
OPA4342UA
OPA4342UA
Rails
"
"
"
"
"
OPA4342UA /2K5
Tape and Reel
OPA4342PA
DIP-14
010
40
C to +85
C
OPA4342PA
OPA4342PA
Rails
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.
PACKAGE/ORDERING INFORMATION
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.
ABSOLUTE MAXIMUM RATINGS
(1)
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.
PIN CONFIGURATIONS
1
2
3
5
4
V+
In
Out
V
+In
OPA342
SOT23-5
1
2
3
4
5
6
7
14
13
12
11
10
9
8
Out D
In D
+In D
V
+In C
In C
Out C
Out A
In A
+In A
+V
+In B
In B
Out B
OPA4342
TSSOP-14, SO-14, DIP-14
A
D
B
C
1
2
3
4
8
7
6
5
V+
Out B
In B
+In B
Out A
In A
+In A
V
OPA2342
SO-8, MSOP-8
A
B
1
2
3
4
8
7
6
5
NC
V+
Out
NC
NC
In
+In
V
OPA342
SO-8
OPA342, 2342, 4342
4
SBOS106A
TYPICAL PERFORMANCE CURVES
At T
A
= +25
C, V
S
= +5V, and R
L
= 10k
connected to V
S
/2, unless otherwise noted.
POWER SUPPLY AND COMMON-MODE
REJECTION RATIO vs FREQUENCY
10
Rejection Ratio (dB)
Frequency (Hz)
100
1k
10k
100k
100
80
60
40
20
10
+PSRR
CMRR
PSRR
CHANNEL SEPARATION vs FREQUENCY
100
Channel Separation (dB)
Frequency (Hz)
1k
10k
100k
1M
140
120
100
80
60
Dual and quad devices.
G = 1, all channels.
Quad measured channel
A to D or B to C--other
combinations yield improved
rejection.
VOLTAGE AND CURRENT NOISE
SPECTRAL DENSITY vs FREQUENCY
1
Voltage Noise (nV/
Hz)
Frequency (Hz)
10
100
1k
10k
100k
1M
10M
10000
1000
100
10
Current Noise (fA/
Hz)
100
10
1
0.1
V
N
I
N
TOTAL HARMONIC DISTORTION + NOISE
vs FREQUENCY
20
THD+N (%)
Frequency (Hz)
100
1k
10k
20k
1
0.1
0.010
0.001
OPEN-LOOP GAIN/PHASE vs FREQUENCY
0.1
1
Gain (dB)
0
30
60
90
120
150
180
Phase (
)
Frequency (Hz)
10
100
1k
10k
100k
1M
10M
120
100
80
60
40
20
0
Gain
Phase
MAXIMUM OUTPUT VOLTAGE vs FREQUENCY
10k
Maximum Output Voltage (Vp-p)
Frequency (Hz)
100k
1M
6
5
4
3
2
1
0
V
S
= +2.7V
V
S
= +5.5V
V
S
= +5V
OPA342, 2342, 4342
5
SBOS106A
TYPICAL PERFORMANCE CURVES
(Cont.)
At T
A
= +25
C, V
S
= +5V, and R
L
= 10k
connected to V
S
/2, unless otherwise noted.
OPEN-LOOP GAIN, COMMON-MODE REJECTION RATIO,
AND POWER SUPPLY REJECTION vs TEMPERATURE
A
OL
75
A
OL
, CMRR, PSRR (dB)
Temperature (
C)
25
0
25
50
50
125
75
100
150
140
120
100
80
60
40
20
0
CMRR
PSRR
INPUT BIAS CURRENT vs TEMPERATURE
75
Input Bias Current (pA)
Temperature (
C)
25
0
25
50
100
50
75
125
10000
1000
100
10
1
0.1
QUIESCENT CURRENT AND
SHORT-CIRCUIT CURRENT vs TEMPERATURE
75
50
0
Quiescent Current (
A)
Temperature (
C)
25
50
100
I
Q
+I
SC
I
SC
75
25
125
200
175
150
135
100
75
50
25
0
Short-Circuit Current (mA)
40
35
30
25
20
15
10
5
0
SLEW RATE vs TEMPERATURE
75
Slew Rate (V/
s)
Temperature (
C)
25
0
SR
+SR
75
50
25
50
100
125
1.2
1
0.8
0.6
0.4
0.2
0
INPUT BIAS CURRENT
vs COMMON-MODE VOLTAGE
1
Input Bias Current (pA)
Common-Mode Voltage (V)
0
1
2
4
3
5
6
6
4
2
0
2
4
6
V+
Supply
V
Supply
Input voltage
0.3V
can cause op amp output
to lock up. See text.
QUIESCENT CURRENT AND
SHORT-CIRCUIT CURRENT vs SUPPLY VOLTAGE
Quiescent Current (
A)
Supply Voltage (V)
2
3
4
5
6
+I
SC
I
SC
I
Q
160
155
150
145
140
Short-Circuit Current (mA)
20
15
10
5
0
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