TL441

現行

具有比例因子 8 mV/十倍頻的對數放大器

立即訂購

產品規格表

document-pdfAcrobat Logarithmic Amplifier datasheet (英文)

TL441

現行

產品規格表

立即訂購

產品詳細資料

Vs (±) (min) (V)

6

Vs (±) (max) (V)

16

Iq (max) (mA)

23

Dynamic range (typ) (dB)

120

Operating temperature range (°C)

0 to 70

Rating

Catalog

Vs (±) (min) (V)

6

Vs (±) (max) (V)

16

Iq (max) (mA)

23

Dynamic range (typ) (dB)

120

Operating temperature range (°C)

0 to 70

Rating

Catalog

PDIP (N)

16

181.42 mm² 19.3 x 9.4

SOP (NS)

16

79.56 mm² 10.2 x 7.8

Excellent Dynamic Range
Wide Bandwidth
Built-In Temperature Compensation
Log Linearity (30-dB Sections)...1 dB Typ
Wide Input Voltage Range

Excellent Dynamic Range
Wide Bandwidth
Built-In Temperature Compensation
Log Linearity (30-dB Sections)...1 dB Typ
Wide Input Voltage Range

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.

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.

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