AD8170R 查看數據表（PDF） - Analog Devices

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AD8170R

250 MHz, 10 ns Switching Multiplexers w/Amplifier

Analog Devices 

–30

VOUT = 2V p-p

–40 G = +2

RF = 499Ω (AD8170R)

–50 RF = 549Ω (AD8174R)

RL = 100Ω

–60

–70

2ND HARMONIC

–80

–90

–100

–110

–120

0.5

3RD HARMONIC

*WORST CHANNEL

1

10

100

FREQUENCY – MHz

Figure 16. Harmonic Distortion vs. Frequency

1M

316k

100k

31.6k

DISABLED

(OR SHUTDOWN)

OUTPUT IMPEDANCE

10k (G = +1)

ENABLED

(OR DISABLED)

INPUT

IMPEDANCE

3.16k ENABLE, SD = LOGIC 1; G = +2

VIN = +0.221V rms

G = +2

RF = 499Ω (AD8170R)

RF = 549Ω (AD8174R)

ENABLE,

SD = LOGIC 1;

G = +1

1k DISABLED (OR SHUTDOWN)

OUTPUT IMPEDANCE (G= +2)

316

100 ENABLED OUTPUT IMPEDANCE (G = +2)

31.6 ENABLE, SD = LOGIC 0, RS(OUT) = 50Ω

10

0.03 0.1

1

10

FREQUENCY – MHz

100

500

Figure 17. Input & Output Impedance vs. Frequency

0

VIN = 200mV rms

–10 G = +2

RF = 499Ω (AD8170R)

–20 RF = 549Ω (AD8174R)

RL = 100Ω

–30

–PSRR

–40

–50

–60

+PSRR

–70

–80

0.03 0.1

1

10

FREQUENCY – MHz

100

500

Figure 18. Power Supply Rejection vs. Frequency

AD8170/AD8174

VOUT = 2V p-p

G = +2

RF = 1kΩ

RS(OUT) = 20Ω

+0.1

0

CL = 300pF

CL = 50pF

CL = 20pF

CL =

100pF

0

–1

CL = 0 –2

–3

–4

–5

–0.1

–0.2 CL = 300pF

–0.3

CL =

100pF

–6

CL =

50pF

–7

–8

–0.4

1M

10M

100M

FREQUENCY – Hz

–9

1G

Figure 19. Frequency Response vs. Capacitive Load, G = +2

VIN = 50mV rms

G = +2

RF = 499Ω (AD8170R)

RF = 549Ω (AD8174R)

0.1 RL = 100Ω

0

–0.1

–0.2

–0.3

–0.4

–0.5

1M

10M

100M

FREQUENCY – Hz

0

–1

–2

–3

–4

–5

–6

–7

–8

–9

1G

Figure 20. Small Signal Frequency Response

1M

180

100k

10k

PHASE

135

TRANSIMPEDANCE

90

1k

45

100

0

10

1k

–45

10k

100k

1M

10M

100M

1G

FREQUENCY – Hz

Figure 21. Open-Loop Transresistance and Phase

vs. Frequency

REV. 0

–7–

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