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OPA861IDBVT Datasheet

  • OPA861IDBVT

  • Wide Bandwidth OPERATIONAL TRANSCONDUCTANCE AMPLIFIER (OTA)

  • 28頁

  • TI

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Burr Brown Products
from Texas Instruments
OPA861
SBOS338 鈥?AUGUST 2005
Wide Bandwidth
OPERATIONAL TRANSCONDUCTANCE
AMPLIFIER (OTA)
FEATURES
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Wide Bandwidth (80MHz, Open-Loop, G = +5)
High Slew Rate (900V/碌s)
High Transconductance (95mA/V)
External I
Q
-Control
Low Quiescent Current (5.4mA)
DESCRIPTION
The OPA861 is a versatile monolithic component
designed for wide-bandwidth systems, including high
performance video, RF and IF circuitry. The OPA861
is a wideband, bipolar operational transconductance
amplifier (OTA).
The OTA or voltage-controlled current source can be
viewed as an
ideal transistor.
Like a transistor, it has
three terminals鈥攁 high impedance input (base), a
low-impedance input/output (emitter), and the current
output (collector). The OPA861, however, is
self-biased and bipolar. The output collector current is
zero for a zero base-emitter voltage. AC inputs
centered about zero produce an output current, which
is bipolar and centered about zero. The
transconductance of the OPA861 can be adjusted
with an external resistor, allowing bandwidth, quiesc-
ent current, and gain trade-offs to be optimized.
Used as a basic building block, the OPA861 sim-
plifies the design of AGC amplifiers, LED driver
circuits for fiber optic transmission, integrators for fast
pulses, fast control loop amplifiers and control ampli-
fiers for capacitive sensors and active filters. The
OPA861 is available in SO-8 and SOT23-6 sur-
face-mount packages.
0
鈭?0
鈭?0
Gain (dB)
鈭?0
鈭?0
鈭?/div>
50
鈭?0
鈭?0
鈭?0
1k
10k
100k
1M
10M
100M
1G
Frequency (Hz)
APPLICATIONS
Video/Broadcast Equipment
Communications Equipment
High-Speed Data Acquisition
Wideband LED Drivers
Control Loop Amplifiers
Wideband Active Filters
Line Drivers
R
C
1
V
IN
R
V
OUT
C
2
20kHz
Low鈭?/div>
Pass Filter
10MHz
Low鈭?/div>
Pass Filter
Low鈭?/div>
Pass Negative Impedance Converter (NIC) Filter
Frequency Response of 20kHz and 10MHz
Low鈭?/div>
Pass NIC Filters
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 the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright 漏 2005, Texas Instruments Incorporated

OPA861IDBVT 產(chǎn)品屬性

  • 1

  • 集成電路 (IC)

  • Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

  • -

  • 跨導

  • 1

  • -

  • 900 V/µs

  • 80MHz

  • -

  • 1µA

  • 3000µV

  • 5.4mA

  • 15mA

  • 4 V ~ 12.6 V，±2 V ~ 6.3 V

  • -40°C ~ 85°C

  • 表面貼裝

  • SOT-23-6

  • SOT-23-6

  • Digi-Reel®

  • 296-18700-6

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