AD8260ACPZ-R7 datasheet(8/32 Pages) AD

部件名	AD8260ACPZ-R7

功能描述	High Current Driver Amplifier and Digital VGA/Preamplifier with 3 dB Steps

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制造商	AD [Analog Devices]

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AD8260

Rev. 0 | Page 8 of 32

TYPICAL PERFORMANCE CHARACTERISTICS

VS (supply voltage) = 3.3 V, TA = 25°C, CL = 5 pF, f = 10 MHz, preamplifier gain = 2×, RFB1 and RFB2 of the preamplifier = 100 Ω,

RLOAD of the driver amplifier = 500 Ω, TX and RX enabled, unless otherwise specified.

5

1

0

2

3

4

FREQUENCY (Hz)

200M

100M

10M

1M

100k

T = –40°C

VOUT = 200mV p-p

T = +105°C

T= +25°C

Figure 3. Small-Signal Frequency Response at Three Temperatures of the

High Current Driver—See Figure 51

5

1

0

2

3

4

FREQUENCY (Hz)

200M

100M

10M

1M

100k

VS = +5V

VOUT = 200mV p-p

VS = +3.3V

VS = ±5V

Figure 4. Small-Signal Frequency Response of the High Current Driver for

Three Supply Voltages—See Figure 51

5

1

0

2

3

4

FREQUENCY (Hz)

200M

100M

10M

1M

100k

VLOAD = 1V p-p; RLOAD =50Ω

VLOAD = 1V p-p; RLOAD =500Ω

VLOAD = 2V p-p; RLOAD =50Ω

VLOAD = 2V p-p; RLOAD =500Ω

Figure 5. Large-Signal Frequency Response of the High Current Driver for Two

Values of Output Voltage and Two Values of Load Resistance—See Figure 51

20

0

5

10

15

FREQUENCY (Hz)

50M

10M

1M

100k

RTO

RTI

Figure 6. Input-Referred and Output-Referred Noise of the High Current

Driver—See Figure 52

10

FREQUENCY (Hz)

100M

10M

1M

100k

100

0.1

1

Figure 7. Output Impedance of the High Current Driver

See Figure 53

–100

LOAD RESISTANCE (Ω)

1k

100

10

–40

–20

–60

–80

–90

HD3

HD2

–70

–50

–30

2V p-p

1V p-p

Figure 8. Harmonic Distortion (HD2, HD3) vs. Load Resistance for the High

Current Driver—See Figure 54

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Analog Devices	AD8260ACPZ-R7	1Mb / 32P	High Current Driver Amplifier and Digital VGA/Preamplifier

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