PSPL5542K Kelvin Bias Tee Datasheet

PSPL5542K Datasheet

The PSPL5542K is an ultra-broadband, coaxial dual bias insertion tee and DC blocking capacitor. It passes ultra-fast rise pulses with a minimum of waveform distortion. Its rise time is only 7 ps. The frequency response is flat over many decades, and the -3 dB bandwidth extends from 12 kHz to beyond 40 GHz. The 2.92 mm connector is mechanically and electrically compatible with SMA and 3.5 mm connectors. Both biasing networks are connected to the AC+DC Port. This bias tee is intended for Kelvin measurements in which a DC bias current is supplied through one biasing network, and the DC voltage is measured using the other. It is packaged in an extremely compact housing.

Key performance specifications

12 kHz to >40 GHz
7 ps rise time
16 V, 100 mA

Typical performance

In the following plots, the Linear sweep is from 0.04 to 40 GHz (4 GHz/div), the AC connector is input (port 1), and the AC+DC connector is output (port 2).

Insertion Loss, S₂₁

Group Delay, S₂₁

Return Loss, S₁₁

Step Response, 20 ps/div

2% rho/div, 100 ps/div; 25 ps TDR of AC input port

Log sweep from 10 kHz to 50 GHz. Insertion loss scale is 0.5 dB/div. Return loss scale is 5 dB/div

Specifications

Parameter	Symbol	Units	Minimum	Typical	Maximum	Comments
Impedance	Z	ohms		50
Upper 3 dB frequency	f_c,h	GHz	40
Lower 3 dB frequency	f_c,l	kHz		12
Rise time	t_r	ps		7		10 – 90%
Insertion loss	S₂₁	dB		0.2		Mid-band
Return loss	S₁₁	dB		>20 >13		1 MHz to 4 GHz
DC voltage	V	V			16
DC current	I	mA			100	Each path
Capacitance	C	μF		0.22		-50%, +80%
Inductance	L	mH		1.5		+/-20% each path
Resistance	R	ohms		5.6		Each path
RF power	P	W			5	Avg., f
Isolation	S₁₃	dB		>50		f > 100 MHz
DC path bandwidth	f_c,DC	kHz		8
Delay	Td	ps		140		AC to AC+DC port
RF Connectors	2.9 mm jacks (f)
DC Connectors	Solder pin
Warranty	One year

Mechanical dimensions

Ordering information

Models

PSPL5542K: KELVIN BIAS TEE