- 您现在的位置：买卖IC网 > PDF目录6037 > LT1807CS8#PBF (Linear Technology)IC OPAMP PREC R-R I/O DUAL 8SOIC PDF资料下载
参数资料
| 型号： | LT1807CS8#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 17/28页 |
| 文件大小： | 0K |
| 描述： | IC OPAMP PREC R-R I/O DUAL 8SOIC |
| 标准包装： | 100 |
| 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： | 0°C ~ 70°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： | 管件 |
| 产品目录页面： | 1319 (CN2011-ZH PDF) |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页当前第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页
LT1806/LT1807
24
18067fc
TYPICAL APPLICATIONS
1MHz Series Resonant Crystal Oscillator with Square
and Sinusoid Outputs
Figure 8 shows a classic 1MHz series resonant crystal
oscillator. At series resonance, the crystal is a low imped-
ance and the positive feedback connection is what brings
about oscillation at the series resonance frequency. The
RC feedback around the other path ensures that the circuit
does not nd a stable DC operating point and refuse to
oscillate. The comparator output is a 1MHz square wave
with a measured jitter of 28psRMS with a 5V supply and
40psRMS with a 3V supply. On the other side of the crystal,
however, is an excellent looking sine wave except for the
fact of the small high frequency glitch caused by the fast
edge and the crystal capacitance (middle trace of Figure 9).
Sinusoid amplitude stability is maintained by the fact that
the sine wave is basically a ltered version of the square
wave; the usual amplitude control loops associated with
sinusoidal oscillators are not immediately necessary.1
One can make use of this sine wave by buffering and
ltering it, and this is the combined task of the LT1806. It
is congured as a bandpass lter with a Q of 5 and does
a good job of cleaning up and buffering the sine wave.
Distortion was measured at –70dBc and –60dBc on the
second and third harmonics.
Figure 8. LT1713 Comparator is Congured as a Series Resonant Crystal Oscillator.
The LT1806 Op Amp is Congured in a Q = 5 Bandpass Filter with fC = 1MHz
–
+
8
SQUARE WAVE
VS
1
7
4
5
R3
1k
R4
210Ω
R1
1k
R8
2k
R9
2k
R5
6.49k
1k
R7
15.8k
R2
1k
1MHZ
AT-CUT
C1
0.1μF
6
3
2
C2
0.1μF
C4
100pF
C3
100pF
LT1713
–
+
VS
7
6
1 (NC)
4
18067 F08
VS = 2.7V TO 6V
3
2
LT1806
LE
R6
162Ω
100pF
SINE WAVE
200ns/DIV
1V/DIV
3V/DIV
18067 F09
1Amplitude will be a linear function of comparator output swing, which is supply dependent and
therefore controllable. The important difference here is that any added amplitude stabilization loop
will not be faced with the classical task of avoiding regions of nonoscillation versus clipping.
Figure 9. Oscillator Waveforms with VS = 3V. Top Trace is Comparator Output.
Middle Trace is Crystal Feedback to Pin 2 at LT1713. Bottom Trace is Buffered,
Inverted and Bandpass Filtered with a Q of 5 by the LT1806
相关PDF资料 |
PDF描述 |
|---|---|
| AD711AQ | IC OPAMP BIFET PREC 25MA 8CDIP |
| 929836-01-10-RK | CONN HEADER 20POS DUAL .100 TIN |
| 9-103329-0-15 | CONN HEADR BRKWAY .100 15POS R/A |
| 929834-04-13-RK | CONN HEADER .100 SNGL STR 13POS |
| 929834-02-23-RK | CONN HEADER .100 SNGL STR 23POS |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LT1807CS8-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:325MHz, Single/Dual,Rail-to-Rail Input and Output, Low Distortion,Low Noise Precision Op Amps |
| LT1807IMS8 | 功能描述:IC OPAMP R-R I/O DUAL LP 8MSOP RoHS:否 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:1 系列:- 放大器类型:通用 电路数:4 输出类型:满摆幅 转换速率:0.028 V/µs 增益带宽积:105kHz -3db带宽:- 电流 - 输入偏压:3nA 电压 - 输入偏移:100µV 电流 - 电源:3.3µA 电流 - 输出 / 通道:12mA 电压 - 电源，单路/双路(±):2.7 V ~ 12 V，±1.35 V ~ 6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:14-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:14-TSSOP 包装:剪切带 (CT) 其它名称:OP481GRUZ-REELCT |
| LT1807IMS8#PBF | 功能描述:IC OPAMP R-R I/O DUAL LP 8MSOP RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:1 系列:- 放大器类型:通用 电路数:4 输出类型:满摆幅 转换速率:0.028 V/µs 增益带宽积:105kHz -3db带宽:- 电流 - 输入偏压:3nA 电压 - 输入偏移:100µV 电流 - 电源:3.3µA 电流 - 输出 / 通道:12mA 电压 - 电源，单路/双路(±):2.7 V ~ 12 V，±1.35 V ~ 6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:14-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:14-TSSOP 包装:剪切带 (CT) 其它名称:OP481GRUZ-REELCT |
| LT1807IMS8#TR | 功能描述:IC OPAMP R-R I/O DUAL LP 8MSOP RoHS:否 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:73 系列:Over-The-Top® 放大器类型:通用 电路数:4 输出类型:满摆幅 转换速率:0.07 V/µs 增益带宽积:200kHz -3db带宽:- 电流 - 输入偏压:1nA 电压 - 输入偏移:285µV 电流 - 电源:50µA 电流 - 输出 / 通道:25mA 电压 - 电源，单路/双路(±):2 V ~ 44 V，±1 V ~ 22 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:16-WFDFN 裸露焊盘 供应商设备封装:16-DFN-EP（5x3） 包装:管件 |
| LT1807IMS8#TRPBF | 功能描述:IC OPAMP R-R I/O DUAL LP 8MSOP RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:73 系列:Over-The-Top® 放大器类型:通用 电路数:4 输出类型:满摆幅 转换速率:0.07 V/µs 增益带宽积:200kHz -3db带宽:- 电流 - 输入偏压:1nA 电压 - 输入偏移:285µV 电流 - 电源:50µA 电流 - 输出 / 通道:25mA 电压 - 电源，单路/双路(±):2 V ~ 44 V，±1 V ~ 22 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:16-WFDFN 裸露焊盘 供应商设备封装:16-DFN-EP（5x3） 包装:管件 |
发布紧急采购，3分钟左右您将得到回复。