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PDF OPA241 Data sheet ( Hoja de datos )

Número de pieza OPA241
Descripción Single-Supply / MicroPOWER OPERATIONAL AMPLIFIERS
Fabricantes Burr-Brown 
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®
OPA241
OPA4241
OPA4251
OPA2251
Single-Supply, MicroPOWER
OPERATIONAL AMPLIFIERS
OPA241
OPA2241
OPA4241
OPA251
OPA2251
OPA4251
OPA241 Family optimized for +5V supply.
OPA251 Family optimized for ±15V supply.
FEATURES
q MicroPOWER: IQ = 25µA
q SINGLE-SUPPLY OPERATION
q RAIL-TO-RAIL OUTPUT (within 50mV)
q WIDE SUPPLY RANGE
Single Supply: +2.7V to +36V
Dual Supply: ±1.35V to ±18V
q LOW OFFSET VOLTAGE: ±250µV max
q HIGH COMMON-MODE REJECTION: 124dB
q HIGH OPEN-LOOP GAIN: 128dB
q SINGLE, DUAL, AND QUAD
APPLICATIONS
q BATTERY OPERATED INSTRUMENTS
q PORTABLE DEVICES
q MEDICAL INSTRUMENTS
q TEST EQUIPMENT
DESCRIPTION
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.
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).
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.
OPA241, OPA251
OPA2241, OPA2251
Offset Trim 1
–In 2
+In 3
V– 4
8 NC
Out A 1
7 V+
–In A 2
6 Output
+In A 3
5 Offset Trim
V– 4
A
B
8 V+
7 Out B
6 –In B
5 +In B
8-Pin DIP, SO-8
8-Pin DIP, SO-8
Out A 1
–In A 2
+In A 3
V+ 4
+In B 5
–In B 6
Out B 7
OPA4241, OPA4251
AD
BC
14-Pin DIP, SO-14
14 Out D
13 –In D
12 +In D
11 V–
10 +In C
9 –In C
8 Out C
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
© 1997 Burr-Brown Corporation
PDS-11406B
OPA241, 2241, 4241
OPA251, 2Pr2in5te1d ,in4U2.S5.A1. October, 1998
®

1 page




OPA241 pdf
TYPICAL PERFORMANCE CURVES
At TA = +25°C, and RL = 100kconnected to VS/2 (ground for VS = ±15V), unless otherwise noted.
Curves apply to OPA241 and OPA251 unless specified.
OPEN-LOOP GAIN/PHASE vs FREQUENCY
160
180
140 160
120
100 G
140
120
80 Φ 100
60 80
40 60
20 VS = ±15V
0 VS = +5V
40
20
POWER SUPPLY and COMMON-MODE
REJECTION RATIO vs FREQUENCY
140 VS = ±15V
120 VS = ±5V
100
CMRR
80 +PSRR
60 –PSRR
40
20
–20
0.01
0.1
1 10 100 1k
Frequency (Hz)
0
10k 100k
0
0.1 1 10 100 1k 10k
Frequency (Hz)
100k
CHANNEL SEPARATION vs FREQUENCY
140
130
120
110
Dual and quad devices.
100 G = 1, all channels.
Quad measured channel
90 A to D or B to C—other
combinations yield improved
80 rejection.
70
10
100 1k
Frequency (Hz)
10k
100k
INPUT VOLTAGE AND CURRENT
NOISE SPECTRAL DENSITY vs FREQUENCY
1k
1k
100
Voltage Noise
Current Noise
100
10
0.1
10
1 10 100 1k 10k
Frequency (Hz)
QUIESCENT CURRENT vs SUPPLY VOLTAGE
30
Per Amplifier
28
26
24
22
0
5 10 15 20 25 30 35 40
Total Supply Voltage (V)
QUIESCENT CURRENT vs TEMPERATURE
40
Per Amplifier
35
30 VS = ±15V
25 VS = +5V
20
15
–75 –50 –25
0
25 50 75 100 125
Temperature (°C)
OPA241, 2241, 4241
®
5 OPA251, 2251, 4251

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