®
OPA241
OPA2241
OPA4241
OPA241
OPA4251
OPA4241
OPA251
OPA2251
OPA4251
OPA2251
Single-Supply, MicroPOWER
OPERATIONAL AMPLIFIERS
DESCRIPTION
OPA241 Family optimized for +5V supply.
OPA251 Family optimized for ±15V supply.
The OPA241 series and OPA251 series are specifically
designed for battery powered, portable applications. In addi-
tion to very low power consumption (25µA), these amplifi-
ers feature low offset voltage, rail-to-rail output swing, high
common-mode rejection, and high open-loop gain.
FEATURES
● MicroPOWER: IQ = 25µA
● SINGLE-SUPPLY OPERATION
● RAIL-TO-RAIL OUTPUT (within 50mV)
● WIDE SUPPLY RANGE
Single Supply: +2.7V to +36V
Dual Supply: ±1.35V to ±18V
The OPA241 series is optimized for operation at low power
supply voltage while the OPA251 series is optimized for
high power supplies. Both can operate from either single
(+2.7V to +36V) or dual supplies (±1.35V to ±18V). The
input common-mode voltage range extends 200mV below
the negative supply—ideal for single-supply applications.
They are unity-gain stable and can drive large capacitive
loads. Special design considerations assure that these prod-
ucts are easy to use. High performance is maintained as the
amplifiers swing to their specified limits. Because the initial
offset voltage (±250µV max) is so low, user adjustment is
usually not required. However, external trim pins are pro-
vided for special applications (single versions only).
● LOW OFFSET VOLTAGE: ±250µV max
● HIGH COMMON-MODE REJECTION: 124dB
● HIGH OPEN-LOOP GAIN: 128dB
● SINGLE, DUAL, AND QUAD
APPLICATIONS
● BATTERY OPERATED INSTRUMENTS
● PORTABLE DEVICES
● MEDICAL INSTRUMENTS
● TEST EQUIPMENT
The OPA241 and OPA251 (single versions) are available
in standard 8-pin DIP and SO-8 surface-mount packages.
The OPA2241 and OPA2251 (dual versions) come in 8-pin
DIP and SO-8 surface-mount packages. The OPA4241 and
OPA4251 (quad versions) are available in 14-pin DIP and
SO-14 surface-mount packages. All are fully specified
from –40°C to +85°C and operate from –55°C to +125°C.
OPA4241, OPA4251
OPA241, OPA251
OPA2241, OPA2251
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–
Offset Trim
1
2
3
4
8
7
6
5
NC
Out A
–In A
+In A
V–
1
2
3
4
8
7
6
5
V+
A
–In
+In
V–
V+
Out B
–In B
+In B
A
B
D
C
B
Output
Offset Trim
+In B
–In B
Out B
10 +In C
8-Pin DIP, SO-8
8-Pin DIP, SO-8
9
8
–In C
Out C
14-Pin DIP, SO-14
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/
•
FAXLine: (800) 548-6133 (US/Canada Only)
•
Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
®
OPA241, 2241, 4241
OPA251, 2251, 4251
© 1997 Burr-Brown Corporation
Printed in U.S.A. October, 1998
PDS-11406B
SBOS075