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參數(shù)資料
| 型號： | TL441N |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 模擬運算功能 |
| 英文描述： | LOG OR ANTILOG AMPLIFIER, 40 MHz BAND WIDTH, PDIP16 |
| 封裝： | PLASTIC, DIP-16 |
| 文件頁數(shù)： | 1/15頁 |
| 文件大?。?/td> | 226K |
| 代理商： | TL441N |
TL441
LOGARITHMIC AMPLIFIER
SLVS328 – OCTOBER 2000
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D Excellent Dynamic Range
D Wide Bandwidth
D Built-In Temperature Compensation
D Log Linearity (30-dB Sections) ...1 dB Typ
D Wide Input Voltage Range
description
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. This logarithmic amplifier is used in log IF
circuitry as well as video and log amplifiers.
The TL441 is characterized for operation over 0
°C to 70°C.
Copyright
2000, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
CA2
VCC –
CA2′
A1
Y
A2
VCC +
NC
CB2
CB2′
GND
B1
Z
B2
N PACKAGE
(TOP VIEW)
NC — No internal connection
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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