参数资料
型号: LT1807IS8#TR
厂商: Linear Technology
文件页数: 16/28页
文件大小: 0K
描述: IC OPAMP R-R I/O DUAL LN 8SOIC
标准包装: 2,500
放大器类型: 通用
电路数: 2
输出类型: 满摆幅
转换速率: 140 V/µs
增益带宽积: 325MHz
电流 - 输入偏压: 5µA
电压 - 输入偏移: 100µV
电流 - 电源: 11mA
电流 - 输出 / 通道: 85mA
电压 - 电源,单路/双路(±): 2.5 V ~ 12.6 V,±1.25 V ~ 6.3 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SO
包装: 带卷 (TR)
LT1806/LT1807
23
18067fc
TYPICAL APPLICATIONS
Single 3V Supply, 4MHz, 4th Order Butterworth Filter
Beneting from a low voltage supply operation, low
distortion and rail-to-rail output of LT1806/LT1807, a low
distortion lter that is suitable for antialiasing can be built
as shown in Figure 6.
On a 3V supply, the lter built with LT1807 has a passband
of 4MHz with 2.5VP-P signal and stopband that is greater
than 70dB to frequency of 100MHz. As an option to minimize
the DC offset voltage at the output, connect a series resistor
of 365Ω and a bypass capacitor at the noninverting inputs
of the ampliers as shown in Figure 6.
Figure 6. Single 3V Supply, 4MHz, 4th Order Butterworth Filter
+
VS
2
47pF
1/2 LT1807
220pF
665Ω
VIN
VOUT
18067 F06
365Ω
(OPTIONAL)
232Ω
4.7μF
(OPTIONAL)
+
22pF
470pF
562Ω
274Ω
1/2 LT1807
Figure 7. Filter Frequency Response
FREQUENCY (Hz)
10k
100k
1M
10M
100M
GAIN
(dB)
18067 F07
10
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
VS = 3V, 0V
VIN = 2.5VP-P
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