Datasheet > REF200

REF200

更新时间： 2024-11-13 11:11:39

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
34页	1212K
描述
双路、100µA 拉/灌电流

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REF200

SBVS020C –SEPTEMBER 2000–REVISED FEBRUARY 2020

REF200 Dual Current Source and Current Sink

1 Features

3 Description

The REF200 combines three circuit building-blocks

•

Completely floating: no power supply or ground

connections

on a single monolithic chip: two 100-µA current

sources and a current mirror. The sections are

dielectrically isolated, making them completely

independent. Also, because the current sources are

two-terminal devices, they can be used equally well

as current sinks. The performance of each section is

individually measured and laser-trimmed to achieve

high accuracy at low cost.

•

High accuracy: 100 µA ±0.5%

Low temperature coefficient: ±25 ppm/°C

Wide voltage compliance: 2.5 V to 40 V

Includes current mirror

2 Applications

The sections can be pin-strapped for currents of 50

µA, 100 µA, 200 µA, 300 µA, or 400 µA. External

circuitry can obtain virtually any current. These and

many other circuit techniques are shown in the

Application Information section of this data sheet.

•

Sensor excitation

Biasing circuitry

Offsetting current loops

Low voltage references

Charge-pump circuitry

Hybrid microcircuits

The REF200 is available in an SOIC package.

Device Information⁽¹⁾

PART NUMBER

PACKAGE

BODY SIZE (NOM)

REF200

SOIC (8)

3.91 mm × 4.90 mm

(1) For all available packages, see the package addendum at the

end of the data sheet.

Functional Block Diagram

I₁

I₂

Mirror

High

Substrate

100µA

I₁

Low

I₂

Mirror

Out

Low

Common

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

12 3 4 5 6 7...34

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