OPA
OPA
234
3
434
®
3
OPA343
OPA2343
OPA4343
OPA
434
3
www.ti.com
SINGLE-SUPPLY, RAIL-TO-RAIL
OPERATIONAL AMPLIFIERS
micro
Amplifier
™
Series
FEATURES
q
q
q
q
q
q
q
RAIL-TO-RAIL INPUT/OUTPUT
MICRO
SIZE PACKAGES
WIDE BANDWIDTH: 5.5MHz
HIGH SLEW RATE: 6V/
µ
s
LOW THD+NOISE: 0.0007% (f = 1kHz)
LOW QUIESCENT CURRENT: 850
µ
A/chan
SINGLE, DUAL, AND QUAD VERSIONS
APPLICATIONS
q
DRIVING A/D CONVERTERS
q
PCMCIA CARDS
q
DATA ACQUISITION
q
AUDIO PROCESSING
q
COMMUNICATIONS
q
ACTIVE FILTERS
q
TEST EQUIPMENT
The OPA343 series operates on a single supply as low as
2.5V, and input common-mode voltage range extends
500mV beyond the supply rails. Output voltage swings to
within 1mV of the supply rails with a 100kΩ load. They
offer excellent dynamic response (BW = 5.5MHz,
SR = 6V/µs), yet quiescent current is only 850µA. Dual
and quad designs feature completely independent circuitry
for lowest crosstalk and freedom from interaction.
The single (OPA343) packages are the tiny SOT-23-5
surface mount and SO-8 surface mount. The dual
(OPA2343) comes in the miniature MSOP-8 surface
mount and SO-8 surface mount. The quad (OPA4343)
packages are the space-saving SSOP-16 surface mount,
SO-14 surface mount, and TSSOP-14 surface mount. All
are specified from –40°C to +85°C and operate from
–55°C to +125°C. A SPICE macromodel is available for
design analysis.
OPA4343
DESCRIPTION
OPA343 series rail-to-rail CMOS operational amplifiers
are designed for low-cost, miniature applications. They
are optimized for low-voltage, single-supply operation.
Rail-to-rail input/output and high-speed operation make
them ideal for driving sampling Analog-to-Digital (A/D)
converters. They are also well suited for general-purpose
and audio applications as well as providing I/V conver-
sion at the output of Digital-to-Analog (D/A) converters.
Single, dual, and quad versions have identical specifica-
tions for design flexibility.
OPA343
OPA343
NC
–In
+In
V–
1
2
3
4
SO-8
OPA2343
Out A
–In A
+In A
V–
1
2
3
4
SO-8, MSOP-8
A
B
8
7
6
5
V+
Out B
–In B
+In B
Out A
–In A
+In A
V+
+In B
–In B
Out B
1
2
8
7
6
5
NC
Out 1
V+
5
V+
V– 2
Output
+In 3
NC
4
SOT-23-5
–In
OPA4343
14
13
A
3
4
5
B
6
7
TSSOP-14
C
9
8
–In C
Out C
Out B
NC
7
8
SSOP-16
10
9
Out C
NC
D
12
11
10
+In D
V–
+In C
+V
+In B
–In B
4
5
B
6
C
11
–In C
13
12
–V
+In C
Out D
–In D
Out A
–In A
+In A
1
2
A
3
D
16
15
14
Out D
–In D
+In D
Copyright © 2000, Texas Instruments Incorporated
SBOS090A
Printed in U.S.A. October, 2000
TI [ TEXAS INSTRUMENTS ]
