LT10041.2, LT10042.5

MICROPOWER INTEGRATED VOLTAGE REFERENCES

SLVS022L − JANUARY 1989 − REVISED OCTOBER 2006

9

POST OFFICE BOX 655303

Figure 12

100

10

1

IZ − Reference Current − mA

1000

0.1

100

10

1

0.1

0.01

LT1004x-2.5

REFERENCE IMPEDANCE

vs

REFERENCE CURRENT

f = 25 Hz

TA = −55°C to 125°C

Figure 13

f − Frequency − Hz

1400

1200

1000

800

600

200

0

10

100

1 k

10 k

100 k

400

IZ = 100 µA

TA = 25°C

LT1004x-2.5

NOISE VOLTAGE

vs

FREQUENCY

Figure 14

Cutoff Frequency − kHz

100

10

1

0.1

120

100

80

60

40

20

0

TL1004x-2.5

FILTERED OUTPUT NOISE VOLTAGE

vs

CUTOFF FREQUENCY

C

R

100

µA

RC Low Pass

IZ = 100 µA

TA = 25°C

Figure 15

t − Time −

µs

100

500

Output

Input

LT1004x-2.5

TRANSIENT RESPONSE

24 k

Ω

VO

VI

0

4

3

2

1

0

5

0

† Data at high and low temperatures are applicable only within the rated operating free-air temperature ranges of the various devices.