Data Sheet G14875EJ2V0DS

7

µPC1945

1

10

100

1000

10000

0

−20

20

40

60

−100

−150

−200

−50

0

2.2 k

Ω

10 k

Ω

IK

10 k

Ω

100 pF

(IK = 2 mA)

υo

υin

Av

φ

φ

f - Frequency - kHz

Av,

vs f

0.1

1

10

100

1000

1.0

0.1

10

50

TA = 25 C

VK = VCC = VREF

IK = 2mA

f - Frequency - kHz

| ZKA | vs f

1

10

100

1000

10000

100000

0.2

0.4

0.6

0.8

1

1.2

1.4

1.6

0

a:

b, c:

a

b

a: VK = VCC = VREF

b: VK = VCC = 3 V

c: VK = VCC = 5 V

2.2 k

Ω

CKA

CKA

IK

IK

2.2 k

Ω

10 k

Ω

R

a,b,c

Stability Area

CKA - Lode Capacitance - pF

Stable

Stable

Unstable

Unstable

Unstable

CKA: Monolithic Ceramic Capacitor

Test Circuit

Caution of Stability Area

When using plural different types of capacitors, each capacitor is needed to be stable independently

.