AD8610ARM-R2 datasheet(18/24 Pages) AD

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AD8610/AD8620

The AD8610/AD8620 maintain this fast settling when loaded

0.00001

0.0001

0.001

0.01

0.1

VCC

VEE

with large capacitive loads as shown in Figure 62.

3.0

ERROR BAND = ±0.01%

2.5

2.0

1.5

1.0

0.1

0.5

LOAD CURRENT (A)

Figure 64. AD8610/AD8620 Dropout from ±13 V vs. Load Current

500

1000

1500

2000

CL (pF)

VEE

VCC

Figure 62. AD8610/AD8620 Settling Time vs. Load Capacitance

3.0

ERROR BAND = ±0.01%

2.5

2.0

1.5

1.0

0.1

0.5

0.00001

0.0001

0.001

0.01

0.1

LOAD CURRENT (A)

Figure 65. OPA627 Dropout from ±15 V vs. Load Current

500

1000

1500

2000

CL (pF)

Although operating conditions imposed on the AD8610/AD8620

(±13 V) are less favorable than the OPA627 (±15 V), it can be

seen that the AD8610/AD8620 have much better drive capability

(lower headroom to the supply) for a given load current.

Operating with Supplies Greater than ±13 V

The AD8610/AD8620 maximum operating voltage is specified

at ±13 V. When ±13 V is not readily available, an inexpensive

LDO can provide ±12 V from a nominal ±15 V supply.

Figure 63. OPA627 Settling Time vs. Load Capacitance

Output Current Capability

The AD8610/AD8620 can drive very heavy loads due to its

high output current. It is capable of sourcing or sinking 45 mA

at ±10 V output. The short circuit current is quite high and the

part is capable of sinking about 95 mA and sourcing over 60 mA

while operating with supplies of ±5 V. Figure 64 and Figure 65

compare the load current vs. output voltage of AD8610/

AD8620 and OPA627.

Rev. E | Page 18 of 24

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