Adjustable Precision Shunt Regulator

AP432/AP432A

Anachip Corp.

www.anachip.com.tw

Rev.1.0 May.7, 2004

6/16

Typical Performance Characteristics

+

-

Output

GND

15KΩ

8.25KΩ

9µF

I

KA

232Ω

TEST CIRCUIT FOR VOLTAGE AMPLIFICATION

SMALL-SIGNAL VOLTAGE AMPLIFICATION vs. FREQUENCY

0

10

20

30

40

50

60

1K

10K

100K

1M

10M

f-Frequency-Hz

I

T

+

-

I KA

GND

Output

1KΩ

50Ω

TEST CIRCUIT FOR REFERENCE IMPEDANCE

REFERENCE IMPEDANCE vs. FREQUENCY

0.1

1

10

100

1K

10K

100K

1M

10M

f-Frequency-Hz

I

T

+

-

150O

I KA

V

BATT

C

L

TEST CIRCUIT FOR CURVE A

+

-

C

L

R1=10KO

R2

I KA

150O

V

BATT

TEST CIRCUIT FOR CURVE B, C, AND D

The areas under the curves represent conditions that may cause the

device to oscillate. For curves B, C, and D, R2 and V+ were adjusted

to establish the initial V

C

0

10

20

30

40

50

60

70

80

90

100

0.001

0.01

0.1

1

10

A

B

C

D

Stable

Stable