REF200 Datasheet, PDF (1/34 Pages) Burr-Brown (TI) – DUAL CURRENT SOURCE/CURRENT SINK

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REF200
SBVS020B – SEPTEMBER 2000 – REVISED JULY 2015
REF200 Dual Current Source and Current Sink
1 Features
•1 Completely Floating: No Power Supply or Ground
Connections
• 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
• Sensor Excitation
• Biasing Circuitry
• Offsetting Current Loops
• Low Voltage References
• Charge-pump Circuitry
• Hybrid Microcircuits
3 Description
The REF200 combines three circuit building-blocks
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.
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.
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
High
8
I₂
High
7
Substrate
6
Mirror
In
5
100µA
100µA
1
2
3
4
I₁
I₂
Mirror
Mirror
Low
Low Common Out
1
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.