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OPA2381AIDRBT 반도체 회로 부품 판매점

Precision/ Low Power/ 18MHz Transimpedance Amplifier



Burr-Brown Corporation 로고
Burr-Brown Corporation
OPA2381AIDRBT 데이터시트, 핀배열, 회로
OPA381
OPA2381
SBOS313B − AUGUST 2004 − REVISED NOVEMBER 2004
Precision, Low Power, 18MHz
Transimpedance Amplifier
FEATURES
D OVER 250kHz TRANSIMPEDANCE
BANDWIDTH
D DYNAMIC RANGE: 5 Decades
D EXCELLENT LONG-TERM STABILITY
D LOW VOLTAGE NOISE: 10nV/Hz
D BIAS CURRENT: 3pA
D OFFSET VOLTAGE: 25µV (max)
D OFFSET DRIFT: 0.1µV/°C (max)
D GAIN BANDWIDTH: 18MHz
D QUIESCENT CURRENT: 800µA
D FAST OVERLOAD RECOVERY
D SUPPLY RANGE: 2.7V to 5.5V
D SINGLE AND DUAL VERSIONS
D MicroPACKAGE: DFN-8, MSOP-8
APPLICATIONS
D PRECISION I/V CONVERSION
D PHOTODIODE MONITORING
D OPTICAL AMPLIFIERS
D CAT-SCANNER FRONT-END
D PHOTO LAB EQUIPMENT
RF
+5V
7
2
OPA381
VOUT
6 (0V to 4.4V)
Photodiode
CDIODE
1M
3
65pF
100k
75pF
RP
(Optional
Pulldown
Resistor)
5V
4
DESCRIPTION
The OPA381 family of transimpedance amplifiers provides
18MHz of Gain Bandwidth (GBW), with extremely high
precision, excellent long-term stability, and very low 1/f noise.
The OPA381 features an offset voltage of 25µV (max), offset
drift of 0.1µV/°C (max), and bias current of 3pA. The OPA381
far exceeds the offset, drift, and noise performance that
conventional JFET op amps provide.
The signal bandwidth of a transimpedance amplifier depends
largely on the GBW of the amplifier and the parasitic
capacitance of the photodiode, as well as the feedback
resistor. The 18MHz GBW of the OPA381 enables a trans-
impedance bandwidth of > 250kHz in most configurations.
The OPA381 is ideally suited for fast control loops for power
level measurement on an optical fiber.
As a result of the high precision and low-noise characteristics
of the OPA381, a dynamic range of 5 decades can be
achieved. This capability allows the measurement of signal
currents on the order of 10nA, and up to 1mA in a single I/V
conversion stage. In contrast to logarithmic amplifiers, the
OPA381 provides very wide bandwidth throughout the full
dynamic range. By using an external pulldown resistor to
–5V, the output voltage range can be extended to include 0V.
The OPA381 and OPA2381 are both available in MSOP-8
and DFN-8 (3mm x 3mm) packages. They are specified
from –40°C to +125°C.
OPA381 RELATED DEVICES
PRODUCT FEATURES
OPA380
90MHz GBW, 2.7V to 5.5V Supply
Transimpedance Amplifier
OPA132
16MHz GBW, Precision FET Op Amp ±15V
OPA300
150MHz GBW, Low-Noise, 2.7V to 5.5V Supply
OPA335
OPA350
OPA354
10µV VOS, Zero-Drift, 2.5V to 5V Supply
500µV VOS, 38MHz, 2.5V to 5V Supply
100MHz GBW CMOS, RRIO, 2.5V to 5V Supply
OPA355
200MHz GBW CMOS, 2.5V to 5V Supply
OPA656/7 230MHz, Precision FET, ±5V
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.
All trademarks are the property of their respective owners.
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.
Copyright 2004, Texas Instruments Incorporated
www.ti.com


OPA2381AIDRBT 데이터시트, 핀배열, 회로
OPA381
OPA2381
SBOS313B − AUGUST 2004 − REVISED NOVEMBER 2004
www.ti.com
ABSOLUTE MAXIMUM RATINGS(1)
Voltage Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +7V
Signal Input Terminals(2), Voltage . . . . . (V−) −0.5V to (V+) + 0.5V
Current . . . . . . . . . . . . . . . . . . . . . ±10mA
Short-Circuit Current(3) . . . . . . . . . . . . . . . . . . . . . . . . Continuous
Operating Temperature Range . . . . . . . . . . . . . . . −40°C to +125°C
Storage Temperature Range . . . . . . . . . . . . . . . . . −65°C to +150°C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150°C
Lead Temperature (soldering, 10s) . . . . . . . . . . . . . . . . . . . . . +300°C
OPA381 ESD Rating (Human Body Model) . . . . . . . . . . . . . . . 2000V
OPA2381 ESD Rating (Human Body Model) . . . . . . . . . . . . . . 1500V
(1) Stresses above these ratings may cause permanent damage.
Exposure to absolute maximum conditions for extended periods
may degrade device reliability. These are stress ratings only, and
functional operation of the device at these or any other conditions
beyond those specified is not implied.
(2) Input terminals are diode clamped to the power-supply rails. Input
signals that can swing more than 0.5V beyond the supply rails
should be current limited to 10mA or less.
(3) Short-circuit to ground; one amplifier per package.
ELECTROSTATIC DISCHARGE SENSITIVITY
This integrated circuit can be damaged by ESD. Texas
Instruments recommends that all integrated circuits be
handled with appropriate precautions. Failure to observe
proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to
complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could
cause the device not to meet its published specifications.
PACKAGE/ORDERING INFORMATION(1)
PRODUCT PACKAGE-LEAD
PACKAGE
DESIGNATOR
SPECIFIED
TEMPERATURE
RANGE
PACKAGE
MARKING
ORDERING
NUMBER
TRANSPORT
MEDIA, QUANTITY
OPA381
MSOP-8
DGK
OPA381AIDGKT Tape and Reel, 250
−40°C to +125°C A64 OPA381AIDGKR Tape and Reel, 2500
OPA381
DFN-8
DRB
OPA381AIDRBT Tape and Reel, 250
−40°C to +125°C A65 OPA381AIDRBR Tape and Reel, 3000
OPA2381
MSOP-8
DGK
−40°C to +125°C
OPA2381AIDGKT Tape and Reel, 250
A62 OPA2381AIDGKR Tape and Reel, 2500
OPA2381
DFN-8
DRB
−40°C to +125°C
OPA2381AIDRBT Tape and Reel, 250
A63 OPA2381AIDRBR Tape and Reel, 3000
(1) For the most current package and ordering information, see the Package Option Addendum located at the end of this data sheet.
PIN ASSIGNMENTS
Top View
OPA381
OPA381
NC(1) 1
In 2
+In 3
V4
8 NC(1)
7 V+
6 Out
5 NC(1)
NC(1) 1
In 2
+In 3
V4
Exposed
Thermal
Die Pad
on
Underside
8 NC(1)
7 V+
6 Out
5 NC(1)
Out A 1
In A 2
+In A 3
V4
MSOP−8
OPA2381
NOTE: (1) NC indicates no internal connection.
DFN−8
OPA2381
8 V+
7 Out B
6 In B
5 +In B
Out A 1
In A 2
+In A 3
V4
Exposed
Thermal
Die Pad
on
Underside
8 V+
7 Out B
6 In B
5 +In B
MSOP−8
DFN−8
2




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OPA2381AIDRBR

Precision/ Low Power/ 18MHz Transimpedance Amplifier - Burr-Brown Corporation



OPA2381AIDRBT

Precision/ Low Power/ 18MHz Transimpedance Amplifier - Burr-Brown Corporation