參數(shù)資料
型號： OPA2652U2K5
英文描述： Dual, 700MHz, Voltage-Feedback OPERATIONAL AMPLIFIER
中文描述： 雙通道，700MHz的，電壓反饋運算放大器
文件頁數(shù)： 10/20頁
文件大小： 297K
代理商： OPA2652U2K5
www.ti.com
APPLICATIONS INFORMATION
Wideband Voltage Feedback Operation
The OPA2652 is a dual, low-power, wideband
voltage feedback operational amplifier. Each channel
is internally compensated to provide unity gain
stability. The OPA2652 voltage feedback architecture
features true differential and fully symmetrical inputs.
This architecture minimizes offset errors, making the
OPA2652 well-suited for implementing filter and
instrumentation
designs.
amplifier, OPA2652 is an ideal choice for designs
that require multiple channels where reduction of
board space, power dissipation and cost are critical.
Its AC performance is optimized to provide a gain
bandwidth product of 200MHz and a fast rise time of
2.0ns,
which
is
an
important
high-speed data conversion applications. The low
DC input offset of
±
1.5mV and drift of
±
5
μ
V/
°
C
support high accuracy requirements. In applications
requiring a higher slew rate and wider bandwidth,
such
as
video
and
communications, consider the dual current feedback
OPA2694, or the OPA2691.
V
O
V
I
1/2
OPA2652
50
W
R
F
402
W
R
G
402
W
R
B
205
W
R
M
57.6
W
Source
+5V
-
5V
R
O
49.9
W
0.1 F
6.8 F
+
0.1 F
0.1 F
6.8 F
+
50
Load
W
= 1
V
O
V
I
1/2
OPA2652
+5V
+
-
5V
50
Load
W
49.9
W
174
W
49.9
W
V
O
V
I
50
Source
W
R
G
402
W
R
F
402
W
+
6.8 F
0.1 F
6.8 F
0.1 F
0.1 F
OPA2652
SBOS125A–JUNE 2000–REVISED MAY 2006
Voltage swings reported in the specifications are
taken directly at the input and output pins, while
output powers (dBm) are at the matched 50
load.
For the circuit of
Figure 28
, the total effective load
will be 100
|| 804
. Two optional components are
included in
Figure 28
.
An additional resistor (174
) is included in series
with the noninverting input. Combined with the 25
DC source resistance looking back towards the
signal generator, this additional resistor gives an
input bias current cancelling resistance that matches
the 201
source resistance seen at the inverting
input (see the
DC Accuracy and Offset Control
section). In addition to the usual power-supply
decoupling capacitors to ground, a 0.1
μ
F capacitor is
included between the two power-supply pins. In
practical printed circuit board (PCB) layouts, this
optional-added
capacitor
2nd-harmonic distortion performance by 3dB to 6dB.
As
a
dual
operational
consideration
in
typically
improves
the
high
bit
rate
digital
Figure 29
shows the DC-coupled, gain of –1, bipolar
supply circuit configuration that is the basis of the
specifications and typical characteristics at G = –1.
The input impedance matching resistor (57.6
) used
for testing gives a 50
input load. A resistor (205
)
connects the noninverting input to ground. This
configuration provides the DC source resistance
matching to cancel outputs errors arising from input
bias current.
Figure 28
shows the DC-coupled, gain of +2, dual
power-supply circuit configuration used as the basis
of the
±
5V specifications and typical characteristics.
This configuration is for one channel. The other
channel is connected similarly. For test purposes, the
input impedance is set to 50
with a resistor to
ground and the output impedance is set to 50
with
a series output resistor.
Figure 29. DC-Coupled, G = –1, Bipolar Supply,
Specification and Test Circuit
Figure 28. DC-Coupled, G = +2, Bipolar Supply,
Specification and Test Circuit
10
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相關代理商/技術(shù)參數(shù)
參數(shù)描述
OPA2652UG4 功能描述:高速運算放大器 Dual 700MHz Voltage Feedback RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補償電壓:0.5 mV 轉(zhuǎn)換速度:55 V/us 工作電源電壓:36 V 電源電流:7.5 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
OPA2658E 制造商:Rochester Electronics LLC 功能描述:- Bulk
OPA2658E1250 制造商:Rochester Electronics LLC 功能描述:- Bulk
OPA2658P 功能描述:高速運算放大器 Dual Wideband RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補償電壓:0.5 mV 轉(zhuǎn)換速度:55 V/us 工作電源電壓:36 V 電源電流:7.5 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
OPA2658U 功能描述:高速運算放大器 Dual Wideband RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補償電壓:0.5 mV 轉(zhuǎn)換速度:55 V/us 工作電源電壓:36 V 電源電流:7.5 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
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