THS4021, THS4022

350-MHz LOW-NOISE HIGH-SPEED AMPLIFIERS

SLOS265B – SEPTEMBER 1999 – REVISED FEBRUARY 2000

19

POST OFFICE BOX 655303

APPLICATION INFORMATION

evaluation board

An evaluation board is available for the THS4021 (literature number SLOP129) and THS4022 (literature number

SLOP231). This board has been configured for very low parasitic capacitance in order to realize the full

performance of the amplifier. A schematic of the evaluation board is shown in Figure 44. The circuitry has been

designed so that the amplifier may be used in either an inverting or noninverting configuration. For more

information, please refer to the

THS4021 EVM User’s Guide or the THS4022 EVM User’s Guide. To order the

evaluation board, contact your local TI sales office or distributor.

_

+

THS4021

VCC –

VCC+

C1

6.8

µF

C4

0.1

µF

C2

6.8

µF

C3

0.1

µF

R4

1 k

Ω

R2

49.9

Ω

R3

49.9

Ω

R5

49.9

Ω

IN –

IN +

NULL

OUT

NULL

+

+

Figure 44. THS4021 Evaluation Board