AD8260ACPZ-R7 datasheet(11/32 Pages) AD

11 / 32 page

AD8260

Rev. 0 | Page 11 of 32

TIME (ns)

CLOAD =5pF

CLOAD = 10pF

CLOAD = 47pF

–20

–30

–10

RLOAD =50Ω

NONINVERTING

2.0

1.5

1.0

0.5

–0.5

–1.0

–1.5

–2.0

Figure 21. Large-Signal Pulse Response of the High Current Driver for Various

Values of Load Capacitance, CLOAD, and 50 Ω Load—See Figure 56

–3

–6

–9

GAIN SELECT CODE

1011

1010

1001

1000

0111

0110

0101

0001

0100

0011

0010

AVERAGE OF 3 SAMPLES

f = 1MHz, 10MHz, AND 40MHz

Figure 22. Gain vs. Gain Select Code for Three Samples for the

VGA/Preamplifier at Three Frequencies—See Figure 57

4.00

3.75

3.50

3.25

3.00

2.75

2.50

2.25

2.00

AVERAGE OF 3 SAMPLES

f = 1MHz, 10MHz, AND 40MHz

GAIN SELECT CODE

1011

1010

1001

1000

0111

0110

0101

0100

0011

0010

Figure 23. Gain Step vs. Gain Select Code for Three Samples for the

VGA/Preamplifier at Three Frequencies—See Figure 57

1.00

0.75

0.50

0.25

–0.25

–0.50

–0.75

–1.00

0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011

GAIN SELECT CODE

AVERAGE OF 3 SAMPLES

f = 1MHz, 10MHz, AND 40MHz

Figure 24. Absolute Gain Error vs. Gain Select Code for Three Samples for the

VGA/Preamplifier at Three Frequencies Normalized to 1 MHz and Code 0110

See Figure 57

1.00

0.75

0.50

0.25

–0.25

–0.50

–0.75

–1.00

0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011

GAIN SELECT CODE

AVERAGE OF 3 SAMPLES AT

EACH TEMPERATURE

T = +105°C

T = +25°C

T = –40°C

Figure 25. Gain Error vs. Gain Select Code at Three Temperatures for the

VGA/Preamplifier—See Figure 57

–40

–30

–20

–50

GAIN SELECT CODE

1010

1001

1000

0111

0110

0101

0001

0100

0011

0010

AVERAGE OF 3 SAMPLES AT

EACH TEMPERATURE

1011

–10

T = +105°C

T = +25°C

T = –40°C

Figure 26. Output Offset Voltage vs. Gain Select Code at Three Temperatures

for the VGA/Preamplifier—See Figure 58

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