–6–

AD706

FREQUENCY – Hz

–80

–160

10

100

1k

10k

100k

–120

–100

–140

Figure 2a. Crosstalk vs. Frequency

3

2

4

1

SINE WAVE

GENERATOR

1/2

AD706

0.1 F

+VS 0.1 F

RL

2k

–VS

20V p-p

VOUT1

20k

6

5

7

8

1 F

0.1 F

+VS

2.21k

CROSSTALK = 20 LOG10

–20dB

VOUT2

VOUT2

VOUT1

1/2

AD706

Figure 2b. Crosstalk Test Circuit

FREQUENCY – Hz

1000

0.1

1

10

100

1k

10k

10

100

1

0.001

0.01

100k

AV = –1000

AV = + 1

IOUT = +1mA

Figure 3. Magnitude of Closed-Loop Output

Impedance vs. Frequency

4

0.1 F

+VS

8

1/2

AD706

VIN

0.1 F

RL

2k

CL

VOUT

RF

SQUARE

WAVE

INPUT

–VS

Figure 4a. Unity Gain Follower (For large signal

applications, resistor RF limits the current

through the input protection diodes.)

Figure 4b. Unity Gain Follower Large

Signal Pulse Response, RF = 10 k

Ω,

CL = 1,000 pF

Figure 4c. Unity Gain Follower

Small Signal Pulse Response,

RF = 0

Ω, CL = 100 pF

Figure 4d. Unity Gain Follower

Small Signal Pulse Response,

RF = 0

Ω, CL = 1000 pF

REV. G