AD8177_15 Datasheet, PDF (19/40 Pages) Analog Devices – Video Crosspoint Switch

EQUIVALENT CIRCUITS
AD8177
OPn, ONn
1kΩ
1kΩ
(VPOS – VNEG)
2
Figure 8. Enabled Output (see also ESD Protection Map, Figure 19)
VPOS
0.4pF
3.1kΩ
20kΩ
3.4pF
20kΩ
VNEG
VPOS
OPn
3.4pF
20kΩ
20kΩ
ONn
VNEG
Figure 9. Disabled Output (see also ESD Protection Map, Figure 19)
2500Ω 2525Ω
IPn
1.3pF
0.3pF
10kΩ
1.3pF
INn
2500Ω 2525Ω
Figure 10. Receiver, Differential (see also ESD Protection Map, Figure 19)
IPn
1.3pF
2500Ω
0.3pF
10kΩ
1.3pF
2500Ω
INn
Figure 11. Receiver Simplified Equivalent Circuit When Driving Differentially
IPn
1.6pF 2.5kΩ
INn
Figure 12. Receiver Simplified Equivalent Circuit
When Driving Single-Ended
VPOS
0.1pF
VBLK,
VOCM_CMENCOFF
0.1pF
10kΩ
10kΩ
VNEG
Figure 13. VBLK and VOCM_CMENCOFF Inputs
(see also ESD Protection Map, Figure 19)
VPOS
0.3pF
VOCM_CMENCON
0.3pF
3.33kΩ
3.33kΩ
VNEG
Figure 14. VOCM_CMENCON Input (see also ESD Protection Map, Figure 19)
VDD
25kΩ
1kΩ
RST
DGND
Figure 15. RST Input (see also ESD Protection Map, Figure 19)
CLK, SER/PAR, WE,
UPDATE, SERIN
A[2:0], D[4:0],
CMENC, CLR
1kΩ
DGND
Figure 16. Logic Input (see also ESD Protection Map, Figure 19)
1kΩ
CS
25kΩ
DGND
Figure 17. CS Input (see also ESD Protection Map, Figure 19)
Rev. 0 | Page 19 of 40