®
OPA
OPA
344
OPA
OPA344
434
4
OPA2344
OPA4344
OPA
®
345
342
OPA345
OPA2345
OPA4345
For most current data sheet and other product
information, visit www.burr-brown.com
LOW POWER, SINGLE-SUPPLY, RAIL-TO-RAIL
OPERATIONAL AMPLIFIERS
Micro
Amplifier
™
Series
FEATURES
q
q
q
q
RAIL-TO-RAIL INPUT
RAIL-TO-RAIL OUTPUT (within 1mV)
LOW QUIESCENT CURRENT: 150
µ
A typ
Micro
SIZE PACKAGES
SOT23-5
MSOP-8
TSSOP-14
DESCRIPTION
The OPA344 and OPA345 series rail-to-rail CMOS
operational amplifiers are designed for precision, low-
power, miniature applications. The OPA344 is unity
gain stable, while the OPA345 is optimized for gains
greater than or equal to five, and has a gain-bandwidth
product of 3MHz.
The OPA344 and OPA345 are optimized to operate on
a single supply from 2.5V and up to 5.5V with an input
common-mode voltage range that extends 300mV
beyond the supplies. Quiescent current is only
250µA (max).
Rail-to-rail input and output make them ideal for driving
sampling analog-to-digital converters. They are also well
suited for general purpose and audio applicaitons and
providing I/V conversion at the output of D/A converters.
Single, dual and quad versions have identical specs for
design flexibility.
A variety of packages are available. All are specified for
operation from –40ºC to 85ºC. A SPICE macromodel is
available for design analysis.
q
GAIN-BANDWIDTH
OPA344: 1MHz, G
≥
1
OPA345: 3MHz, G
≥
5
q
SLEW RATE
OPA344: 0.8V/
µ
s
OPA345: 2V/
µ
s
q
THD + NOISE: 0.006%
APPLICATIONS
q
q
q
q
q
q
q
PCMCIA CARDS
DATA ACQUISITION
PROCESS CONTROL
AUDIO PROCESSING
COMMUNICATIONS
ACTIVE FILTERS
TEST EQUIPMENT
OPA344, OPA345
Out
V–
+In
1
2
3
SOT23-5
4
–In
5
V+
OPA4344, OPA4345
Out A
–In A
1
2
A
+In A
3
4
5
B
C
9
8
–In C
Out C
6
7
D
12
11
10
+In D
–V
+In C
14
13
Out D
–In D
OPA2344, OPA2345
Out A
–In A
+In A
V–
1
2
3
4
A
B
8
7
6
5
V+
Out B
–In B
+In B
OPA344, OPA345
NC
–In
+In
V–
1
2
3
4
8
7
6
5
NC
V+
Out
NC
+V
+In B
–In B
Out B
SO-8, MSOP-8, 8-Pin DIP (OPA2344 Only)
SO-8, 8-Pin DIP (OPA344 Only)
TSSOP-14, SO-14, 14-PIn DIP (OPA4344 Only)
International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111
Twx: 910-952-1111 • Internet: http://www.burr-brown.com/ • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
© 2000 Burr-Brown Corporation
PDS-1486A
Printed in U.S.A. April, 2000
BURR-BROWN [ BURR-BROWN CORPORATION ]
