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 

AD8260

TEST CIRCUITS

NETWORK ANALYZER

OUT 50Ω

50Ω IN

AD8260—HIGH CURRENT DRIVER

0.1µF

INRN

TXFB

50Ω

0.1µF

INRP

–

+

VOCM

0.1µF

TXOP

453Ω

5pF

VMDO

Figure 51. Test Circuit for Frequency Response of the High Current Driver

0.1µF

0.1µF

AD8260—HIGH CURRENT DRIVER

INRN

TXFB

SPECTRUM

ANALYZER

INRP

––

TXOP

0.1µF

IN

+

50Ω

VOCM

VMDO

Figure 52. Test Circuit for Input-Referred and Output-Referred Noise of the High Current Driver

0.1µF

0.1µF

AD8260—HIGH +3.3V

CURRENT DRIVER

INRN

TXFB

INRP

–

TXOP

+

VOCM

NETWORK ANALYZER

WITH S-PARAMETER MODE

IN

50Ω

–3.3V

Figure 53. Test Circuit for Output Impedance of the High Current Driver

LP

FILTER

1:1

SIGNAL

GENERATOR

50Ω

AD8260—HIGH CURRENT DRIVER

0.1µF

INRN

TXFB

50Ω

50Ω

INRP

0.1µF

–

+

VOCM

0.1µF

TXOP

RLOAD

CLOAD

SPECTRUM

ANALYZER

IN

50Ω

VMDO

Figure 54. Test Circuit for Harmonic Distortion of the High Current Driver

Rev. 0 | Page 16 of 32

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