TS4040(2007) データシートの表示（PDF） - STMicroelectronics

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TS4040
(Rev.:2007)

2.5V micropower shunt voltage reference

STMicroelectronics 

Electrical characteristics

TS4040

Figure 1. Reference voltage versus cathode Figure 2. Minimum operating current

current

Reference voltage versus cathode current

15

10

5

0

-5

-0.5 0 0.5 1 1.5 2 2.5

Cathode voltage (V)

Minimum operating current

3

2.5

T=+25°C

2

T=+85°C

1.5

T=-40°C

1

0.5

0

0

20

40

Cathode current (µA)

Figure 3. Test circuit

Test circuit

R

Ik=(Vin-Vref)/R

Vin

Figure 4. Reference voltage versus

temperature

2.58

2.56

+2%

2.54

+1%

2.52

Vout=Vref

2.5

2.48

-1%

2.46

2.44

-2%

2.42

-40 -20 0 20 40 60 80

Temperature (°C)

Figure 5. Static impedance Rka versus

temperature

Static impedance (Rka) versus

temperature

0.2

0.15

0.1

0.05

0

-40 -20 0 20 40 60 80

Temperature (°C)

Figure 6. Noise voltage versus frequency

1500

1000

Noise voltage versus Frequency

CL=100µF

CL=10µF

500

0

0.1

CL=1µF

CL=100nF

CL=0

10.0

1.0

100.0

Frequency (KHz)

1000.0

4/9

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