AD680JR(RevC) 데이터 시트보기 (PDF) - Analog Devices

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AD680JR
(Rev.:RevC)

Low Power, Low Cost 2.5 V Reference

Analog Devices 

AD680

Figure 6 displays the characteristics of the AD680 output ampli-

fier driving a 0 mA to 10 mA load. Longer settling times will re-

sult if the reference is forced to sink any transient current.

In some applications, a varying load may be both resistive and

capacitive in nature, or the load may be connected to the

AD680 by a long capacitive cable.

+VIN

0.1 µF

AD680

VOUT

VOUT

249Ω

Figure 7 displays the output amplifier characteristics driving a

1000 pF, 0 mA to 10 mA load.

+VIN

0.1 µF

AD680

VOUT

CL

1000pF

VL

VOUT

249Ω

VOUT

0V

VL

VOUT

0V

Figure 7a. Capacitive Load Transient Response Test

Circuit

Figure 6a. Transient Load Test Circuit

Figure 6b. Large-Scale Transient Response

Figure 7b. Output Response with Capacitive Load

LOAD REGULATION

Figure 8 shows the load regulation characteristics of the AD680.

Figure 6c. Fine Scale Settling for Transient Load

Figure 8. Typical Load Regulation Characteristics

REV. C

–5–

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