Data Sheet

ADA4891-1/ADA4891-2/ADA4891-3/ADA4891-4

Rev. F | Page 9 of 24

FREQUENCY (MHz)

–6

–5

–4

–3

–2

–1

0

3

4

5

6

1

2

7

0.1

1

10

100

1k

+125°C

+25°C

0°C

–40°C

VS = 3V

G = +1

VOUT = 200mV p-p

RL = 1kΩ

+85°C

Figure 13. Small-Signal Frequency Response vs. Temperature, VS = 3 V,

ADA4891-1/ADA4891-2

–0.5

–0.4

–0.3

–0.2

–0.1

0

0.1

1

0.1

10

100

FREQUENCY (MHz)

G = +2

RF = 604Ω

RL = 150Ω

VS = 3V

VOUT = 2V p-p

VS = 5V

VOUT = 1.4V p-p

VS = 3V

VOUT = 1.4V p-p

VS = 5V

VOUT = 2V p-p

Figure 14. 0.1 dB Gain Flatness vs. Supply Voltage, G = +2,

ADA4891-1/ADA4891-2

–10

–9

–8

–7

–6

–5

–4

–3

–2

–1

0

1

0.1

1

10

100

1k

FREQUENCY (MHz)

VS = 5V

RL = 150Ω

G = +1

VOUT = 1V p-p

G = –1

VOUT = 2V p-p

G = +2

VOUT = 2V p-p

G = +5

VOUT = 2V p-p

Figure 15. Large-Signal Frequency Response vs. Gain, VS = 5 V,

ADA4891-1/ADA4891-2

FREQUENCY (MHz)

–6

–5

–4

–3

–2

–1

0

3

4

5

6

1

2

7

0.1

1

10

100

1k

VS = 3V

G = +1

VOUT = 200mV p-p

RL = 1kΩ

+125°C

+85°C

+25°C

0°C

–40°C

Figure 16. Small-Signal Frequency Response vs. Temperature, VS = 3 V,

ADA4891-3/ADA4891-4

0.1

0

–0.1

–0.2

–0.3

–0.4

–0.5

0.1

1

10

100

FREQUENCY (MHz)

VS = 3V

VOUT = 1.4V p-p

VS = 3V

VOUT = 2V p-p

VS = 5V

VOUT = 2V p-p

G = +2

RF = 374Ω

RL = 150Ω

VS = 5V

VOUT = 1.4V p-p

Figure 17. 0.1 dB Gain Flatness vs. Supply Voltage, G = +2,

ADA4891-3/ADA4891-4

1

0

–1

–2

–3

–4

–5

–6

–7

–8

–9

–10

0.1

1

10

100

1k

FREQUENCY (MHz)

VS = 5V

RL = 150Ω

G = +1

VOUT = 1V p-p

G = –1

VOUT = 2V p-p

G = +5

VOUT = 2V p-p

G = +2

VOUT = 2V p-p

Figure 18. Large-Signal Frequency Response vs. Gain, VS = 5 V,

ADA4891-3/ADA4891-4