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)： 11/16頁
文件大小： 175K
代理商： OPA689P
11
OPA689
TYPICAL APPLICATIONS
DUAL SUPPLY, NON-INVERTING AMPLIFIER
Figure 1 shows a non-inverting gain amplifier for dual
supply operation. This circuit was used for AC characteriza-
tion of the OPA689, with a 50
source, which it matches,
and a 500
load. The power supply bypass capacitors are
shown explicitly in Figures 1 and 2, but will be assumed in
the other figures. The limiter voltages (V
H
and V
L
) and their
bias currents (I
VH
and I
VL
) have the polarities shown.
SINGLE SUPPLY, NON-INVERTING AMPLIFIER
Figure 2 shows an AC coupled, non-inverting gain amplifier
for single supply operation. This circuit was used for AC
characterization of the OPA689, with a 50
source, which
it matches, and a 500
load. The power supply bypass
capacitors are shown explicitly in Figures 1 and 2, but will
be assumed in the other figures. The limiter voltages (V
H
and V
L
) and their bias currents (I
VH
and I
VL
) have the
polarities shown. Notice that the single supply circuit can
use 3 resistors to set V
H
and V
L
, where the dual supply
circuit usually uses 4 to reference the limit voltages to
ground.
LOW DISTORTION, ADC INPUT DRIVER
The circuit in Figure 3 shows an inverting, low distortion
ADC driver that operates on single supply. The converter’s
internal references bias the op amp input. The 4.0pF and
18pF capacitors form a compensation network that allows
FIGURE 3. Low Distortion, Limiting ADC Input Driver.
FIGURE 1. DC-Coupled, Dual Supply Amplifier.
FIGURE 2. AC-Coupled, Single Supply Amplifier.
OPA689
49.9
6
I
VH
V
O
V
IN
I
VL
–V
S
= –5V
3
2
4
7
8
5
R
F
750
R
G
150
500
0.1μF
0.1μF
0.1μF
100
3.01k
1.91k
3.01k
1.91k
0.1μF
V
H
= +2V
V
L
= –2V
+
2.2μF
+
2.2μF
+V
S
= +5V
OPA689
53.6
6
I
VH
V
H
= 3.7V
V
O
V
L
= 1.3V
V
IN
I
VL
1.50k
3
2
4
7
8
5
1.50k
523
976
523
R
G
150
R
F
750
500
0.1μF
0.1μF
0.1μF
+
2.2μF
0.1μF
V
S
= +5V
0.1μF
0.1μF
OPA689
V
S
= +5V
V
S
= +5V
4
3
2
7
5
8
6
V
S
= +5V
V
IN
4.0pF
750
0.1
μ
F
REFB
REFT
IN
INT/EXT
RSEL
+V
S
GND
0.1
μ
F
18pF
100pF
V
H
= +3.6V
V
L
= +1.4V
+2.5V
374
1.40k
24.9
1.40k
0.1
μ
F
0.1
μ
F
787
100
100
787
ADS822
10-Bit
40MSPS
10-Bit
Data
+1.5V
+3.5V
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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