AD704 datasheet(6/8 Pages) AD

6 / 8 page

AD704

REV. A

–6–

100

100k

10M

LOAD RESISTANCE – k

Ω

46 8

–55 C

+25 C

+125 C

Figure 18. Open-Loop Gain vs.

Load Resistance Over Temperature

1000

100

0.1

0.01

0.001

100

10k

100k

FREQUENCY – Hz

A = –1000

A = +1

= +1mA

OUT

Figure 21. Closed-Loop Output

Impedance vs. Frequency

5µs

20mV

100

Figure 22c. Unity Gain Follower

Small Signal Pulse Response

RF = 0

Ω, C

L = 100 pF

–20

100

120

140

0.01 0.1

100

1k 10k 100k 1M 10M

FREQUENCY – Hz

120

150

180

GAIN

PHASE

Figure 19. Open-Loop Gain and Phase

vs. Frequency

1/4

AD704

SQUARE

WAVE INPUT

0.1

µF

0.1

µF

R F

OUT

C L

–VS

+VS

Ω

Figure 22a. Unity Gain Follower

(For Large Signal Applications,

Resistor RF Limits the Current

Through the Input Protection

Diodes)

5µs

20mV

100

Figure 22d. Unity Gain Follower

Small Signal Pulse Response

RF = 0 Ω, CL = 1,000 pF

+0.5

+1.0

+1.5

–1.5

–1.0

–0.5

SUPPLY VOLTAGE –

±Volts

–VS

R = 10k

Ω

Figure 20. Output Voltage Swing vs.

Supply Voltage

50µs

100

Figure 22b. Unity Gain Follower

Large Signal Pulse Response

RF = 10 kΩ, CL = 1,000 pF

1/4

AD704

SQUARE

WAVE INPUT

0.1 µF

VOUT

C L

2.5kΩ

–VS

V IN

+VS

10kΩ

Figure 23a. Unity Gain Inverter

Connection

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