LOG100

更新时间： 2024-09-19 22:28:07

品牌	Logo	应用领域
BB		放大器
页数	文件大小	规格书
9页	126K
描述
Precision LOGARITHMIC AND LOG RATIO AMPLIFIER

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中文翻译

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数据手册

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LOG100 数据手册

LOG100

Precision

LOGARITHMIC AND LOG RATIO AMPLIFIER

FEATURES

APPLICATIONS

● ACCURACY

● LOG, LOG RATIO AND ANTILOG

0.37% FSO max Total Error

Over 5 Decades

COMPUTATIONS

● ABSORBANCE MEASUREMENTS

● DATA COMPRESSION

● LINEARITY

0.1% max Log Conformity

Over 5 Decades

● OPTICAL DENSITY MEASUREMENTS

● DATA LINEARIZATION

● EASY TO USE

● CURRENT AND VOLTAGE INPUTS

Pin-selectable Gains

Internal Laser-trimmed Resistors

● WIDE INPUT DYNAMIC RANGE

6 Decades, 1nA to 1mA

● HERMETIC CERAMIC DIP

resistors. The resistors are laser-trimmed for maxi-

mum precision. FET input transistors are used for the

amplifiers whose low bias currents (1pA typical) per-

mit signal currents as low as 1nA while maintaining

guaranteed total errors of 0.37% FSO maximum.

DESCRIPTION

The LOG100 uses advanced integrated circuit tech-

nologies to achieve high accuracy, ease of use, low

cost, and small size. It is the logical choice for your

logarithmic-type computations. The amplifier has guar-

anteed maximum error specifications over the full six-

decade input range (1nA to 1mA) and for all possible

combinations of I₁and I₂. Total error is guaranteed so

that involved error computations are not necessary.

Because scaling resistors are self-contained, scale

factors of 1V, 3V or 5V per decade are obtained

simply by pin selections. No other resistors are re-

quired for log ratio applications. The LOG100 will

meet its guaranteed accuracy with no user trimming.

Provisions are made for simple adjustments of scale

factor, offset voltage, and bias current if enhanced

performance is desired.

The circuit uses a specially designed compatible thin-

film monolithic integrated circuit which contains am-

plifiers, logging transistors, and low drift thin-film

Q₁

Q₂

–V_CC

I₁

A₂

V_OUT

A₁

K = 1

K = 3

7.5kΩ

I₂

K = 5

24kΩ

39kΩ

+V_CC

Com

270Ω

220Ω

Scale

Factor

Trim

I₁

I₂

V_OUT= K LOG

Resistor values nominal only;

laser-trimmed for precision gain.

International Airport Industrial Park

•

Mailing Address: PO Box 11400

Cable: BBRCORP

•

Tucson, AZ 85734

•

Street Address: 6730 S. Tucson Blvd.

• Tucson, AZ 85706

Tel: (520) 746-1111 Twx: 910-952-1111

•

Telex: 066-6491

•

FAX: (520) 889-1510

•

Immediate Product Info: (800) 548-6132

PDS-437E

Printed in U.S.A. January, 1995

12 3 4 5 6 7...9

中文翻译

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与LOG100相关器件

型号	品牌	获取价格	描述	数据表
LOG100JP	BB	获取价格	Precision LOGARITHMIC AND LOG RATIO AMPLIFIER
LOG100JP	ROCHESTER	获取价格	LOG OR ANTILOG AMPLIFIER, 0.045MHz BAND WIDTH, CDIP14, HERMETIC SEALED, CERAMIC, DIP-14
LOG100JP-2	ROCHESTER	获取价格	LOG OR ANTILOG AMPLIFIER, CDIP14, HERMETIC SEALED, CERAMIC, DIP-14
LOG101	BB	获取价格	Precision LOGARITHMIC AND LOG RATIO AMPLIFIER
LOG101	TI	获取价格	Precision LOGARITHMIC AND LOG RATIO AMPLIFIER
LOG101AID	TI	获取价格	Precision LOGARITHMIC AND LOG RATIO AMPLIFIER
LOG101AID	BB	获取价格	Precision LOGARITHMIC AND LOG RATIO AMPLIFIER
LOG101AIDE4	TI	获取价格	Precision LOGARITHMIC AND LOG RATIO AMPLIFIER
LOG101AIDR	TI	获取价格	Precision LOGARITHMIC AND LOG RATIO AMPLIFIER
LOG101AIDR	BB	获取价格	Precision LOGARITHMIC AND LOG RATIO AMPLIFIER

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