TL441 对数放大器
This amplifier circuit contains four 30-dB logarithmic stages. Gain in each stage is such that the output of each stage is proportional to the logarithm of the input voltage over the 30-dB input voltage range. Each half of the circuit contains two of these 30-dB stages summed together in one
differential output that is proportional to the sum of the logarithms of the input voltages of the two stages. The four stages may be interconnected to obtain a theoretical input voltage range of 120-dB. In practice, this permits the input voltage range typically to be greater than 80-dB with log linearity of ± 0.5-dB (see application data). Bandwidth is from dc to 40 MHz.
This circuit is useful in data compression and analog compensation
|
TL441 |
| Scale Factor (Typ) (V/decade) |
0.008 |
| Iq (Max) (mA) |
23 |
| Full-Scale Output Voltage (Typ) (+/- V) |
0.040 |
| Operating Temperature Range (C) |
0 to 70 |
TL441 特性
- EASY-TO-USE COMPLETE CORE FUNCTION
- HIGH ACCURACY: 0.01% FSO Over 5 Decades
- WIDE INPUT DYNAMIC RANGE:
7.5 Decades, 100pA to 3.5mA
- LOW QUIESCENT CURRENT: 1mA
- WIDE SUPPLY RANGE: ±4.5V to ±18V
- APPLICATIONS
- LOG, LOG RATIO, ANTI-LOG COMPUTATION:
Communication, Analytical, Medical, Industrial, Test, General Instrumentation
- PHOTODIODE SIGNAL COMPRESSION AMP
- ANALOG SIGNAL COMPRESSION IN FRONT OF ANALOG-TO-DIGITAL(A/D)CONVERTER
TL441 芯片订购指南
| 器件 |
状态 |
温度 |
价格 |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| TL441CN |
ACTIVE |
0 to 70 |
4.30 | 1ku |
PDIP (N) | 16 |
25 | TUBE |
|
| TL441CNE4 |
ACTIVE |
0 to 70 |
4.30 | 1ku |
PDIP (N) | 16 |
25 | TUBE |
|
| TL441CNSR |
ACTIVE |
0 to 70 |
4.30 | 1ku |
SO (NS) | 16 |
2000 | LARGE T&R |
|
| TL441CNSRE4 |
ACTIVE |
0 to 70 |
4.30 | 1ku |
SO (NS) | 16 |
2000 | LARGE T&R |
|
| TL441CNSRG4 |
ACTIVE |
0 to 70 |
4.30 | 1ku |
SO (NS) | 16 |
2000 | LARGE T&R |
|
TL441 质量与无铅数据
| 器件 |
环保计划* |
铅/焊球涂层 |
MSL 等级/回流焊峰 |
环保信息与无铅 (Pb-free) |
DPPM / MTBF / FIT 率 |
| TL441CN |
Pb-Free (RoHS) |
CU NIPDAU |
N/A for Pkg Type |
TL441CN |
TL441CN |
| TL441CNE4 |
Pb-Free (RoHS) |
CU NIPDAU |
N/A for Pkg Type |
TL441CNE4 |
TL441CNE4 |
| TL441CNSR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TL441CNSR |
TL441CNSR |
| TL441CNSRE4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TL441CNSRE4 |
TL441CNSRE4 |
| TL441CNSRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
TL441CNSRG4 |
TL441CNSRG4 |
TL441 应用技术支持与电子电路设计开发资源下载
- TL441 数据资料 dataSheet 下载.PDF
- TI 德州仪器特殊功能放大器产品选型与价格 . xls
- 所选封装材料的热学和电学性质 (PDF 645 KB)
- 高速数据转换 (PDF 1967 KB)
- 使您的仪器放大器设计达到最佳效果 (zhct011.PDF, 897 KB)
- 低成本电流并联监视器 IC 使动圈式仪表设计复兴 (zhct030.PDF, 1.04 MB)
- Demystifying the Operational Transconductance Amplifier (sboa117.HTM, 8 KB)
- Using the TL441 with the TL441 to Generate 4mA to 20mA Output (PDF 167 KB)
- 在 PSPICE 中使用德州仪器 (TI) SPICE 模型 (zhca088.HTM, 8 KB)
- PowerPADTM Thermally Enhanced Package (slma002g.HTM, 8 KB)
- 运算放大器的单电源操作 (PDF 2174 KB)
- Tuning in Amplifiers (PDF 44 KB)
- Op Amp Performance Analysis (PDF 76 KB)
- An Error Analysis of the ISO102 in a Small Signal Measuring Application (PDF 29 KB)
- Level Shifting Signals with Differential Amplifiers (PDF 23 KB)
- Operational Amplifier Macromodels: A Comparison (PDF 59 KB)
TL441 工具与软件
| 培训内容 |
型号 |
软件/工具类型 |
| TL441EVM 评估模块 |
TL441EVM |
开发电路板/EVM |