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Número de pieza | OPA2341 | |
Descripción | SINGLE-SUPPLY / RAIL-TO-RAIL OPERATIONAL AMPLIFIER WITH SHUTDOWN | |
Fabricantes | Burr-Brown | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de OPA2341 (archivo pdf) en la parte inferior de esta página. Total 13 Páginas | ||
No Preview Available ! OPA2341
OPA341
OPA341
OPA2341
SBOS202A – AUGUST 2001
SINGLE-SUPPLY, RAIL-TO-RAIL
OPERATIONAL AMPLIFIER WITH SHUTDOWN
microAmplifier ™ Series
FEATURES
q RAIL-TO-RAIL INPUT AND OUTPUT SWING
q MicroSIZE PACKAGES
q BANDWIDTH: 5.5MHz
q SLEW RATE: 6V/µs
q QUIESCENT CURRENT: 750µA/Chan
q POWER SHUTDOWN MODE
APPLICATIONS
q SENSOR BIASING
q SIGNAL CONDITIONING
q DATA ACQUISITION
q PROCESS CONTROL
q ACTIVE FILTERS
q TEST EQUIPMENT
DESCRIPTION
The OPA341 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 and output and high-speed operation make them ideal for
driving sampling Analog-to-Digital (A/D) converters.
The power-saving shutdown feature makes the OPA341
ideal for portable low-power applications. The OPA341
series is also well suited for general-purpose and audio
applications as well as providing I/V conversion at the
output of Digital-to-Analog (D/A) converters. Single and
dual versions have identical specifications for design flex-
ibility.
The OPA341 series operate on a single supply as low as 2.5V,
and input common-mode voltage range extends 300mV beyond
the supply rails. Output voltage swings to within 1mV of the
supply rails with a 100kΩ load. The OPA341 series offers
excellent dynamic response (BW = 5.5MHz, SR = 6V/µs) with
a quiescent current of only 750µA. The dual design features
completely independent circuitry for lowest crosstalk and free-
dom from interaction.
The single (OPA341) packages are the tiny SOT23-6 surface
mount and SO-8 surface mount. The dual (OPA2341) comes
in the miniature MSOP-10 surface mount. All are specified
from –55°C to +125°C and operate from –55°C to +150°C.
The OPA343 provides similar performance without shut-
down capability.
Out 1
V– 2
+In 3
OPA341
6 V+
5 SD
4 –In
SOT23-6 (N)
NC 1
–In 2
+In 3
V– 4
OPA341
SO-8 (U)
8 SD
7 V+
6 Out
5 NC
OPA2341
Out A 1
–In A 2
+In A 3
V– 4
SD A 5
10 V+
9 Out B
8 –In B
7 +In B
6 SD B
MSOP-10 (DGS)
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
www.ti.com
Copyright © 2001, Texas Instruments Incorporated
1 page TYPICAL CHARACTERISTICS (Cont.)
At TA = +25°C, VENABLE = VDD, VS = +5V, RL = 10kΩ, unless otherwise noted.
OPEN-LOOP GAIN AND PSRR
vs TEMPERATURE
160
140
AOL
120
AOL
100
80
PSRR
60
RL = 100kΩ
RL = 2kΩ
40
–75
–25 25
75
Temperature (°C)
125 150
CMRR vs TEMPERATURE
100
90
VS = 5V, (V–) – 0.3V < VCM < (V+) – 1.8V
80
VS = 5V, (V–) – 0.3V < VCM < (V+) + 0.3V
70
60
–75
VS = 2.7V, (V–) – 0.3V < VCM < (V+) + 0.3V
–25 25
75
Temperature (°C)
125 150
1.20
QUIESCENT CURRENT vs TEMPERATURE
1.00
0.80
0.60
0.40
0.20
0.00
–75
–25 25 75
Temperature (°C)
125 150
QUIESCENT CURRENT vs SUPPLY VOLTAGE
0.80
0.75
0.70
0.65
0.60
2
34
Supply Voltage (V)
5
6
100
90
80
70
60
50
40
30
20
10
0
–75
SHORT-CIRCUIT CURRENT vs TEMPERATURE
–ISC
+ISC
–25 25 75
Temperature (°C)
125
150
60
58
56
54
52
50
48
46
44
42
40
2
SHORT-CIRCUIT CURRENT vs SUPPLY VOLTAGE
–ISC
+ISC
3 45
Supply Voltage (V)
6
OPA341, 2341
SBOS202A
5
5 Page +5V
0.1µF
0.1µF
VIN
VIN = 0V to 5V for
0V to 5V output.
OPA341
RC Anti-Aliasing
Filter
8 V+
500Ω
10kΩ
+In
2
–In
3300pF 3
ADS7816
12-Bit A/D
Converter
GND 4
1 VREF
7
DCLOCK
DOUT
CS/SHDN
6
5
ENABLE
Timing
Logic
NOTE: A/D Input = 0 to VREF
Serial
Interface
1.6µs 3µs
OA OA
15µs
Enable Settling Anti-Aliasing Filter Settling
OPA341 SD
1µs
ADS7816 CS/SHDN
5µs
FIGURE 5. OPA341 in Noninverting Configuration Driving the ADS7816 with Timing Diagram.
200pF
10MΩ
VIN
10MΩ
1/2
OPA2341
ENABLE A
+5V
Filters 160Hz to 2.4kHz
243kΩ
1.74MΩ
220pF
47pF
1/2
OPA2341
ENABLE B
RL
FIGURE 6. Speech Bandpass Filter.
< 1pF (prevents gain peaking)
10MΩ
V+
λ
OPA341
VO
FIGURE 7. Transimpedance Amplifier.
ENABLE
OPA341, 2341
SBOS202A
11
11 Page |
Páginas | Total 13 Páginas | |
PDF Descargar | [ Datasheet OPA2341.PDF ] |
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