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參數(shù)資料
| 型號： | REF200AUE4 |
| 英文描述： | DUAL CURRENT SOURCE/CURRENT SINK |
| 中文描述： | 雙路電流源/電流源 |
| 文件頁數(shù)： | 1/17頁 |
| 文件大?。?/td> | 255K |
| 代理商： | REF200AUE4 |
1988 Burr-Brown Corporation
PDS-851D
Printed in U.S.A. October, 1993
FEATURES
G
COMPLETELY FLOATING:
No Power Supply or Ground Connections
G
HIGH ACCURACY: 100
μ
A
±
0.5%
G
LOW TEMPERATURE COEFFICIENT:
±
25ppm/
°
C
G
WIDE VOLTAGE COMPLIANCE:
2.5V to 40V
G
ALSO INCLUDES CURRENT MIRROR
APPLICATIONS
G
SENSOR EXCITATION
G
BIASING CIRCUITRY
G
OFFSETTING CURRENT LOOPS
G
LOW VOLTAGE REFERENCES
G
CHARGE-PUMP CIRCUITRY
G
HYBRID MICROCIRCUITS
REF200
DUAL CURRENT SOURCE/CURRENT SINK
DESCRIPTION
The REF200 combines three circuit building-blocks
on a single monolithic chip—two 100
μ
A current
sources and a current mirror. The sections are
dielectrically isolated, making them completely
independent. Also, since 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
μ
A,
100
μ
A, 200
μ
A, 300
μ
A or 400
μ
A. External circuitry
can be used to obtain virtually any current. These and
many other circuit techniques are shown in the
Applications section of this Data Sheet.
The REF200 is available in plastic 8-pin mini-DIP
and SOIC packages.
I
High
I
High
Substrate
Mirror
In
I
Low
I
Low
Mirror
Out
Mirror
Common
1
2
1
2
8
7
6
5
1
2
3
4
100μA
100μA
International Airport Industrial Park Mailing Address: PO Box 11400, Tucson, AZ 85734 Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 Tel: (520) 746-1111 Twx: 910-952-1111
Internet: http://www.burr-brown.com/ FAXLine: (800) 548-6133 (US/Canada Only) Cable: BBRCORP Telex: 066-6491 FAX: (520) 889-1510 Immediate Product Info: (800) 548-6132
REF200
REF200
SBVS020
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