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參數(shù)資料
| 型號(hào)： | OPA2607U |
| 英文描述： | Dual, High Output, Current-Feedback OPERATIONAL AMPLIFIER |
| 中文描述： | 雙路，高輸出，電流反饋運(yùn)算放大器 |
| 文件頁(yè)數(shù)： | 6/13頁(yè) |
| 文件大小： | 174K |
| 代理商： | OPA2607U |
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6
OPA2607
APPLICATIONS INFORMATION
WIDEBAND CURRENT FEEDBACK OPERATION
The OPA2607 gives the exceptional AC performance of a
wideband current feedback op amp with a highly linear,
high power output stage. Requiring only 8.0mA/chan quies-
cent current, the OPA2607 will swing to within 2V of either
supply rail and deliver in excess of 180mA guaranteed at
room temperature. This low output headroom requirement,
along with supply-voltage independent biasing, gives re-
markable single (+15V) supply operation. Previous boosted
output stage amplifiers have typically suffered from very
poor crossover distortion as the output current goes through
zero. The OPA2607 achieves a comparable power gain with
much better linearity. The primary advantage of a current-
feedback op amp over a voltage-feedback op amp is that AC
performance (bandwidth and distortion) is relatively inde-
pendent of signal gain.
Figure 1 shows the DC-coupled, gain of +8, dual power-
supply circuit configuration used as the basis of the
±
12V
Specifications and Typical Performance Curves. 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. Voltage swings reported in the speci-
fications are taken directly at the input and output pins while
load powers (dBm) are defined at a matched 50
load.
For the circuit of Figure 1, the total effective load will be
100
|| 1379
= 93
.
TYPICAL PERFORMANCE CURVES: V
S
=
±
12V
(Cont.)
At T
A
= +25
°
C, G = +8, R
F
= 1.21k
, and R
L
= 100
, unless otherwise noted. See Figure 1 for AC performance only.
1/2
OPA2607
+12V
+
–12V
50
Load
49.9
49.9
V
O
V
I
50
Source
R
G
169
R
F
1.21k
+
2.2
μ
F
0.1
μ
F
2.2
μ
F
0.1
μ
F
+V
S
–V
FIGURE 1. DC-Coupled, G = +8, Bipolar Supply, Specifi-
cation and Test Circuit.
TWO-TONE,3RD-ORDER
INTERMODULATION SPURIOUS
Single-Tone Load Power (dBm)
–5
0
5
10
15
20
–50
–60
–70
–80
–90
3
f
O
= 2MHz
f
O
= 1MHz
Load Power at Matched 50
Load
f
O
≤
500kHz
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| OPA2607U/2K5 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| OPA260FJ | 制造商:Analog Devices 功能描述: |
| OPA2613ID | 功能描述:高速運(yùn)算放大器 Dual Wideband Hi-Output Current RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補(bǔ)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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| OPA2613ID | 制造商:Texas Instruments 功能描述:IC |
| OPA2613IDG4 | 功能描述:高速運(yùn)算放大器 Dual Wideband Hi-Output Current RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補(bǔ)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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
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