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參數(shù)資料
| 型號(hào)： | OPA689P |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | Wideband, High Gain VOLTAGE LIMITING AMPLIFIER |
| 中文描述： | 寬帶，高增益電壓限幅放大器 |
| 文件頁數(shù)： | 12/16頁 |
| 文件大?。?/td> | 175K |
| 代理商： | OPA689P |
12
OPA689
the OPA689 to have a flat frequency response at a gain of –
2. This increases the loop gain of the op amp feedback
network, which reduces the distortion products below their
specified values.
PRECISION HALF WAVE RECTIFIER
Figure 4 shows a half wave rectifier with outstanding preci-
sion and speed. V
H
will default to a voltage between 3.1 and
3.8V if left open, while the negative limit is set to ground.
OPA689
6
V
O
–V
S
= –5V
+V
S
= +5V
V
IN
2
3
4
7
8
5
750
150
124
NC
FIGURE 4. Precision Half Wave Rectifier.
VERY HIGH SPEED COMPARATOR
Figure 5 shows a very high speed comparator with hysterisis.
The output level are precisely defined, and the recovery time
is exceptional. The output voltage swings between 0.5V and
3.5V to provide a logic level output that switches as V
IN
crosses V
REF
.
OPA689
6
V
O
–V
S
= –5V
3
2
4
7
8
5
0.1μF
0.1μF
2.00k
1.21k
200k
604
+V
S
= +5V
100
V
IN
95.3
FIGURE 5. Very High Speed Comparator.
FIGURE 6. Transimpedance Amplifier.
DESIGN-IN TOOLS
APPLICATIONS SUPPORT
The Burr-Brown Applications Department is available
for design assistance at phone number 1-800-548-6132
(US/Canada only). The Burr-Brown Internet web page
(http://www.burr-brown.com) has the latest data sheets and
other design aids.
DEMONSTRATION BOARDS
Two PC boards are available to assist in the initial evaluation
of circuit performance of the OPA689 in both package
styles. These will be available as an unpopulated PCB with
descriptive documentation. See the board literature for more
information. The summary information for these boards is
shown below:
BOARD
PART
NUMBER
LITERATURE
REQUEST
NUMBER
PRODUCT
PACKAGE
OPA689P
OPA689U
8-Pin DIP
8-Pin SO-8
DEM-OPA68xP
DEM-OPA68xU
MKT-350
MKT-351
Contact the Burr-Brown Applications Department for avail-
ability of these boards.
SPICE MODELS
Computer simulation of circuit performance using SPICE is
often useful when analyzing analog circuit or system perfor-
mance. This is particularly true for high speed amplifier
circuits where parasitic capacitance and inductance can have
a major effect on frequency response.
SPICE models are available through the Burr-Brown web
site (www.burr-brown.com). These models do a good job of
predicting small-signal AC and transient performance under
a wide variety of operating conditions. They do not do as
well in predicting the harmonic distortion, temperature ef-
fects, or different gain and phase characteristics. These
models do not distinquish between the AC performance of
different package types.
OPA689
+V
S
= +5V
NC
NC
–V
S
= –5V
4
2
3
7
5
8
6
V
O
4.32k
4.32k
C
1.0pF
C
5.0pF
λ
0.1
μ
F
–V
B
I
D
TRANSIMPEDANCE AMPLIFIER
Figure 6 shows a transimpedance amplifier that has excep-
tional overdrive characteristics. The feedback capacitor (C
F
)
stabilizes the circuit for the assumed diode capacitance (C
D
).
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| OPA689 | Wideband, High Gain VOLTAGE LIMITING AMPLIFIER |
| OPA693ID | Ultra-Wideband, Fixed Gain Video BUFFER AMPLIFIER with Disable |
| OPA693IDR | Ultra-Wideband, Fixed Gain Video BUFFER AMPLIFIER with Disable |
| OPA693 | Ultra-Wideband, Fixed Gain Video BUFFER AMPLIFIER with Disable |
| OPA693IDBVR | Ultra-Wideband, Fixed Gain Video BUFFER AMPLIFIER with Disable |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| OPA689U | 制造商:BB 制造商全稱:BB 功能描述:EVALUATION FIXTURE |
| OPA689U/2K5 | 制造商:Rochester Electronics LLC 功能描述:OP AMP WIDEBAND VOLT LIMITING - Bulk 制造商:Texas Instruments 功能描述: |
| OPA690 | 制造商:BB 制造商全稱:BB 功能描述:Low-Power, Single-Supply, Wideband Operational Amplifier |
| OPA690ID | 功能描述:高速運(yùn)算放大器 Wideband Voltage Feeback 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 |
| OPA690ID | 制造商:Texas Instruments 功能描述:IC SM OP-AMP WIDEBAND VFB |
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