74HC_HCT1G66_15 datasheet(11/18 Pages) PHILIPS

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74HC_HCT1G66_4

Product data sheet

Rev. 04 — 19 December 2008

11 of 18

NXP Semiconductors

74HC1G66; 74HCT1G66

Single-pole single-throw analog switch

11.3 Test circuits and graphs

f(−3dB)

−3 dB frequency

response

RL = 50 Ω; CL = 10 pF; see Figure 12 and 13

VCC = 4.5 V

180

MHz

VCC = 9.0 V

200

MHz

αiso

isolation (OFF-state)

RL = 600 Ω; fi = 1 MHz; see Figure 14 and 15

VCC = 4.5 V

−50

VCC = 9.0 V

−50

Table 12.

Additional dynamic characteristics for 74HC1G66 and 74HCT1G66 …continued

GND = 0 V; tr = tf = 6.0 ns; CL = 50 pF; unless otherwise speciﬁed. All typical values are measured at Tamb =25 °C.

Symbol Parameter

Conditions

Min

Typ

Max

Unit

Fig 11. Test circuit for measuring total harmonic distortion

µF

2RL

VIH

VCC

Y/Z

Z/Y

001aai678

With fi = 1 MHz adjust the switch input voltage for a 0 dBm level at the switch output, (0 dBm = 1 mW into 50 Ω). Then Increase

the input frequency until the dB meter reads

−3dB

Fig 12. Test circuit for measuring the

−3 dB frequency response

0.1

µF

2RL

VIH

VCC

Y/Z

Z/Y

001aai680

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