廬
OPA
2
41
OPA
425
1
OPA241
OPA2241
OPA4241
OPA
4
241
OPA
225
1
OPA251
OPA2251
OPA4251
Single-Supply,
Micro
POWER
OPERATIONAL AMPLIFIERS
OPA241 Family
optimized for +5V supply.
OPA251 Family
optimized for
鹵15V
supply.
DESCRIPTION
The OPA241 series and OPA251 series are specifically
designed for battery powered, portable applications. In addi-
tion to very low power consumption (25碌A), these amplifi-
ers feature low offset voltage, rail-to-rail output swing, high
common-mode rejection, and high open-loop gain.
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 (鹵1.35V to
鹵18V).
The
input common-mode voltage range extends 200mV below
the negative supply鈥攊deal 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 (鹵250碌V max) is so low, user adjustment is
usually not required. However, external trim pins are pro-
vided for special applications (single versions only).
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 鈥?0擄C to +85擄C and operate from 鈥?5擄C to +125擄C.
FEATURES
q
q
q
q
Micro
POWER: I
Q
= 25
碌
A
q
q
q
q
SINGLE-SUPPLY OPERATION
RAIL-TO-RAIL OUTPUT (within 50mV)
WIDE SUPPLY RANGE
Single Supply: +2.7V to +36V
Dual Supply:
鹵
1.35V to
鹵
18V
LOW OFFSET VOLTAGE:
鹵
250
碌
V max
HIGH COMMON-MODE REJECTION: 124dB
HIGH OPEN-LOOP GAIN: 128dB
SINGLE, DUAL, AND QUAD
APPLICATIONS
q
BATTERY OPERATED INSTRUMENTS
q
PORTABLE DEVICES
q
MEDICAL INSTRUMENTS
q
TEST EQUIPMENT
OPA241, OPA251
Offset Trim
鈥揑n
+In
V鈥?/div>
1
2
3
4
8-Pin DIP, SO-8
8
7
6
5
NC
V+
Output
Offset Trim
OPA2241, OPA2251
Out A
鈥揑n A
+In A
V鈥?/div>
1
2
3
4
8-Pin DIP, SO-8
A
B
8
7
6
5
V+
Out B
鈥揑n B
+In B
Out A
鈥揑n A
+In A
V+
+In B
鈥揑n B
Out B
1
2
OPA4241, OPA4251
14
13
A
3
4
5
B
6
7
14-Pin DIP, SO-14
C
9
8
鈥揑n C
Out C
D
12
11
10
+In D
V鈥?/div>
+In C
Out D
鈥揑n D
International Airport Industrial Park 鈥?Mailing Address: PO Box 11400, Tucson, AZ 85734 鈥?Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 鈥?Tel: (520) 746-1111 鈥?Twx: 910-952-1111
Internet: http://www.burr-brown.com/ 鈥?FAXLine: (800) 548-6133 (US/Canada Only) 鈥?Cable: BBRCORP 鈥?Telex: 066-6491 鈥?FAX: (520) 889-1510 鈥?Immediate Product Info: (800) 548-6132
漏 1997 Burr-Brown Corporation
PDS-1406B
1
OPA241, 2241, 4241
Printed in U.S.A.
OPA251, 2251, 4251
October, 1998
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SBOS075
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