AD8260ACPZ-RL(Rev0) View Datasheet(PDF) - Analog Devices

Part Name

Description

Manufacturer

AD8260ACPZ-RL
(Rev.:Rev0)

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

Analog Devices 

SIGNAL

GENERATORS

50Ω

1kΩ

1kΩ

50Ω

AD8260—HIGH CURRENT DRIVER

0.1µF

1:1

INRN

TXFB

INRP

0.1µF

–

+

VOCM

0.1µF

TXOP

453Ω

SPECTRUM

ANALYZER

IN

50Ω

VMDO

Figure 55. Test Circuit for IMD3 and OIP3 of the High Current Driver

AD8260—HIGH CURRENT DRIVER

0.1µF

INRN

TXFB

50Ω

0.1µF

INRP

50Ω

–

+

VOCM

TXOP

0.1µF RLOAD

CLOAD

12.5Ω

VMDO

OSCILLOSCOPE

IN

50Ω

Figure 56. Test Circuit for Pulse Response of the High Current Driver

SIGNAL

GENERATOR

0.1µF

50Ω 50Ω

AD8260—VGA/PREAMPLIFIER

+

PREAMP

–

100Ω

0.1µF 453Ω

0.1µF 453Ω

OSCILLOSCOPE

IN

50Ω

100Ω

VMDO

Figure 57. Test Circuit for Gain Step Size and Error of the VGA/Preamplifier

0.1µF

AD8260—VGA/PREAMPLIFIER

+

PREAMP

–

DMM

100Ω

100Ω

VMDO

Figure 58. Test Circuit for Output-Referred Offset Voltage of the VGA/Preamplifier

AD8260

Rev. 0 | Page 17 of 32

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