Texas Instruments THS4151 manual Additional Sample Schematics

Additional Sample Schematics

1.6 Additional Sample Schematics

For verification of jumper locations and other bypass components, see the complete EVM schematic in Figure 1±2.

Figure 1±3. Fully-Differential In/Fully-Differential Out, Without Transformer

R3BR6b

50 Ω RX1
Source	0	Ω

VIN

AC

RX2 0 Ω

R1b 0 Ω

R16 Termination Resistor

R1a

0Ω

R3a

	C4
	VCC
	+
	±
	THS4151
	+
	±
C1	VCC±	C6
	VOCM

R6a

R4b Rx4 R10

0 Ω 0 Ω

R4a Rx5 Rx6

0 Ω 0 Ω

Note: Fully-differential in / fully-differential out signal path. See the Texas Instruments February 2001 Analog Applications

Journal for the information on the termination resistors.

Figure 1±4. Fully-Differential In/Fully-Differential Out, Utilizing Transformer

					R6b
					C4
50 Ω					VCC
	R5
Source		T1	R1B	R3b	+ ±
VIN
AC	R9		R1A	R3a	THS4151
					+
					±
				C1	C6
					VOCM GND
					R6a

R4b R14 T2 R10

0 Ω	0 Ω
R4a	R15	Rx6
0 Ω	0 Ω

Note: Utilizing the input and output transformers to create a fully-differential signal input/ differential or single output and isolate the amplifier from the rest of the front-end and back-end circuits.

Introduction and Description 1-5